X-Git-Url: http://git.bitcoin.ninja/index.cgi?a=blobdiff_plain;f=lightning%2Fsrc%2Fln%2Fmsgs.rs;h=2efc3c1c051798eebcad6fc800502d85ab683659;hb=b9ca5788f5b1caca660004fe94a64017ae8a7b5e;hp=6cbcd9787008f30901ddbed5232ada6c93d0e71f;hpb=ad40573bc4425ac6dc6ec05eb66eb9de9e600780;p=rust-lightning

diff --git a/lightning/src/ln/msgs.rs b/lightning/src/ln/msgs.rs
index 6cbcd978..2efc3c1c 100644
--- a/lightning/src/ln/msgs.rs
+++ b/lightning/src/ln/msgs.rs
@@ -24,33 +24,52 @@
 //! raw socket events into your non-internet-facing system and then send routing events back to
 //! track the network on the less-secure system.
 
+use bitcoin::blockdata::constants::ChainHash;
 use bitcoin::secp256k1::PublicKey;
 use bitcoin::secp256k1::ecdsa::Signature;
-use bitcoin::secp256k1;
-use bitcoin::blockdata::script::Script;
-use bitcoin::hash_types::{Txid, BlockHash};
+use bitcoin::{secp256k1, Witness};
+use bitcoin::blockdata::script::ScriptBuf;
+use bitcoin::hash_types::Txid;
 
+use crate::blinded_path::payment::{BlindedPaymentTlvs, ForwardTlvs, ReceiveTlvs};
+use crate::ln::{ChannelId, PaymentPreimage, PaymentHash, PaymentSecret};
 use crate::ln::features::{ChannelFeatures, ChannelTypeFeatures, InitFeatures, NodeFeatures};
 use crate::ln::onion_utils;
 use crate::onion_message;
+use crate::sign::{NodeSigner, Recipient};
 
 use crate::prelude::*;
+#[cfg(feature = "std")]
+use core::convert::TryFrom;
 use core::fmt;
 use core::fmt::Debug;
-use crate::io::{self, Read};
+use core::ops::Deref;
+#[cfg(feature = "std")]
+use core::str::FromStr;
+#[cfg(feature = "std")]
+use std::net::SocketAddr;
+use core::fmt::Display;
+use crate::io::{self, Cursor, Read};
 use crate::io_extras::read_to_end;
 
-use crate::util::events::{MessageSendEventsProvider, OnionMessageProvider};
+use crate::events::{EventsProvider, MessageSendEventsProvider};
+use crate::crypto::streams::ChaChaPolyReadAdapter;
 use crate::util::logger;
-use crate::util::ser::{LengthReadable, Readable, ReadableArgs, Writeable, Writer, FixedLengthReader, HighZeroBytesDroppedBigSize, Hostname};
+use crate::util::ser::{LengthReadable, LengthReadableArgs, Readable, ReadableArgs, Writeable, Writer, WithoutLength, FixedLengthReader, HighZeroBytesDroppedBigSize, Hostname, TransactionU16LenLimited, BigSize};
+use crate::util::base32;
 
-use crate::ln::{PaymentPreimage, PaymentHash, PaymentSecret};
+use crate::routing::gossip::{NodeAlias, NodeId};
 
 /// 21 million * 10^8 * 1000
 pub(crate) const MAX_VALUE_MSAT: u64 = 21_000_000_0000_0000_000;
 
+#[cfg(taproot)]
+/// A partial signature that also contains the Musig2 nonce its signer used
+#[derive(Clone, Debug, Hash, PartialEq, Eq)]
+pub struct PartialSignatureWithNonce(pub musig2::types::PartialSignature, pub musig2::types::PublicNonce);
+
 /// An error in decoding a message or struct.
-#[derive(Clone, Debug, PartialEq, Eq)]
+#[derive(Clone, Debug, Hash, PartialEq, Eq)]
 pub enum DecodeError {
 	/// A version byte specified something we don't know how to handle.
 	///
@@ -77,29 +96,33 @@ pub enum DecodeError {
 /// An [`init`] message to be sent to or received from a peer.
 ///
 /// [`init`]: https://github.com/lightning/bolts/blob/master/01-messaging.md#the-init-message
-#[derive(Clone, Debug, PartialEq, Eq)]
+#[derive(Clone, Debug, Hash, PartialEq, Eq)]
 pub struct Init {
 	/// The relevant features which the sender supports.
 	pub features: InitFeatures,
+	/// Indicates chains the sender is interested in.
+	///
+	/// If there are no common chains, the connection will be closed.
+	pub networks: Option<Vec<ChainHash>>,
 	/// The receipient's network address.
 	///
 	/// This adds the option to report a remote IP address back to a connecting peer using the init
 	/// message. A node can decide to use that information to discover a potential update to its
 	/// public IPv4 address (NAT) and use that for a [`NodeAnnouncement`] update message containing
 	/// the new address.
-	pub remote_network_address: Option<NetAddress>,
+	pub remote_network_address: Option<SocketAddress>,
 }
 
 /// An [`error`] message to be sent to or received from a peer.
 ///
 /// [`error`]: https://github.com/lightning/bolts/blob/master/01-messaging.md#the-error-and-warning-messages
-#[derive(Clone, Debug, PartialEq, Eq)]
+#[derive(Clone, Debug, Hash, PartialEq, Eq)]
 pub struct ErrorMessage {
 	/// The channel ID involved in the error.
 	///
 	/// All-0s indicates a general error unrelated to a specific channel, after which all channels
 	/// with the sending peer should be closed.
-	pub channel_id: [u8; 32],
+	pub channel_id: ChannelId,
 	/// A possibly human-readable error description.
 	///
 	/// The string should be sanitized before it is used (e.g., emitted to logs or printed to
@@ -111,12 +134,12 @@ pub struct ErrorMessage {
 /// A [`warning`] message to be sent to or received from a peer.
 ///
 /// [`warning`]: https://github.com/lightning/bolts/blob/master/01-messaging.md#the-error-and-warning-messages
-#[derive(Clone, Debug, PartialEq, Eq)]
+#[derive(Clone, Debug, Hash, PartialEq, Eq)]
 pub struct WarningMessage {
 	/// The channel ID involved in the warning.
 	///
 	/// All-0s indicates a warning unrelated to a specific channel.
-	pub channel_id: [u8; 32],
+	pub channel_id: ChannelId,
 	/// A possibly human-readable warning description.
 	///
 	/// The string should be sanitized before it is used (e.g. emitted to logs or printed to
@@ -128,7 +151,7 @@ pub struct WarningMessage {
 /// A [`ping`] message to be sent to or received from a peer.
 ///
 /// [`ping`]: https://github.com/lightning/bolts/blob/master/01-messaging.md#the-ping-and-pong-messages
-#[derive(Clone, Debug, PartialEq, Eq)]
+#[derive(Clone, Debug, Hash, PartialEq, Eq)]
 pub struct Ping {
 	/// The desired response length.
 	pub ponglen: u16,
@@ -141,7 +164,7 @@ pub struct Ping {
 /// A [`pong`] message to be sent to or received from a peer.
 ///
 /// [`pong`]: https://github.com/lightning/bolts/blob/master/01-messaging.md#the-ping-and-pong-messages
-#[derive(Clone, Debug, PartialEq, Eq)]
+#[derive(Clone, Debug, Hash, PartialEq, Eq)]
 pub struct Pong {
 	/// The pong packet size.
 	///
@@ -149,51 +172,54 @@ pub struct Pong {
 	pub byteslen: u16,
 }
 
-/// An [`open_channel`] message to be sent to or received from a peer.
+/// Contains fields that are both common to [`open_channel`] and `open_channel2` messages.
 ///
 /// [`open_channel`]: https://github.com/lightning/bolts/blob/master/02-peer-protocol.md#the-open_channel-message
-#[derive(Clone, Debug, PartialEq, Eq)]
-pub struct OpenChannel {
+// TODO(dual_funding): Add spec link for `open_channel2`.
+#[derive(Clone, Debug, Hash, PartialEq, Eq)]
+pub struct CommonOpenChannelFields {
 	/// The genesis hash of the blockchain where the channel is to be opened
-	pub chain_hash: BlockHash,
-	/// A temporary channel ID, until the funding outpoint is announced
-	pub temporary_channel_id: [u8; 32],
-	/// The channel value
+	pub chain_hash: ChainHash,
+	/// A temporary channel ID
+	/// For V2 channels: derived using a zeroed out value for the channel acceptor's revocation basepoint
+	/// For V1 channels: a temporary channel ID, until the funding outpoint is announced
+	pub temporary_channel_id: ChannelId,
+	/// For V1 channels: The channel value
+	/// For V2 channels: Part of the channel value contributed by the channel initiator
 	pub funding_satoshis: u64,
-	/// The amount to push to the counterparty as part of the open, in milli-satoshi
-	pub push_msat: u64,
-	/// The threshold below which outputs on transactions broadcast by sender will be omitted
+	/// The threshold below which outputs on transactions broadcast by the channel initiator will be
+	/// omitted
 	pub dust_limit_satoshis: u64,
-	/// The maximum inbound HTLC value in flight towards sender, in milli-satoshi
+	/// The maximum inbound HTLC value in flight towards channel initiator, in milli-satoshi
 	pub max_htlc_value_in_flight_msat: u64,
-	/// The minimum value unencumbered by HTLCs for the counterparty to keep in the channel
-	pub channel_reserve_satoshis: u64,
-	/// The minimum HTLC size incoming to sender, in milli-satoshi
+	/// The minimum HTLC size incoming to channel initiator, in milli-satoshi
 	pub htlc_minimum_msat: u64,
-	/// The feerate per 1000-weight of sender generated transactions, until updated by
+	/// The feerate for the commitment transaction set by the channel initiator until updated by
 	/// [`UpdateFee`]
-	pub feerate_per_kw: u32,
-	/// The number of blocks which the counterparty will have to wait to claim on-chain funds if
-	/// they broadcast a commitment transaction
+	pub commitment_feerate_sat_per_1000_weight: u32,
+	/// The number of blocks which the counterparty will have to wait to claim on-chain funds if they
+	/// broadcast a commitment transaction
 	pub to_self_delay: u16,
-	/// The maximum number of inbound HTLCs towards sender
+	/// The maximum number of inbound HTLCs towards channel initiator
 	pub max_accepted_htlcs: u16,
-	/// The sender's key controlling the funding transaction
+	/// The channel initiator's key controlling the funding transaction
 	pub funding_pubkey: PublicKey,
 	/// Used to derive a revocation key for transactions broadcast by counterparty
 	pub revocation_basepoint: PublicKey,
-	/// A payment key to sender for transactions broadcast by counterparty
-	pub payment_point: PublicKey,
-	/// Used to derive a payment key to sender for transactions broadcast by sender
+	/// A payment key to channel initiator for transactions broadcast by counterparty
+	pub payment_basepoint: PublicKey,
+	/// Used to derive a payment key to channel initiator for transactions broadcast by channel
+	/// initiator
 	pub delayed_payment_basepoint: PublicKey,
-	/// Used to derive an HTLC payment key to sender
+	/// Used to derive an HTLC payment key to channel initiator
 	pub htlc_basepoint: PublicKey,
-	/// The first to-be-broadcast-by-sender transaction's per commitment point
+	/// The first to-be-broadcast-by-channel-initiator transaction's per commitment point
 	pub first_per_commitment_point: PublicKey,
 	/// The channel flags to be used
 	pub channel_flags: u8,
-	/// Optionally, a request to pre-set the to-sender output's `scriptPubkey` for when we collaboratively close
-	pub shutdown_scriptpubkey: OptionalField<Script>,
+	/// Optionally, a request to pre-set the to-channel-initiator output's scriptPubkey for when we
+	/// collaboratively close
+	pub shutdown_scriptpubkey: Option<ScriptBuf>,
 	/// The channel type that this channel will represent
 	///
 	/// If this is `None`, we derive the channel type from the intersection of our
@@ -201,82 +227,166 @@ pub struct OpenChannel {
 	pub channel_type: Option<ChannelTypeFeatures>,
 }
 
-/// An [`accept_channel`] message to be sent to or received from a peer.
+/// An [`open_channel`] message to be sent to or received from a peer.
+///
+/// Used in V1 channel establishment
+///
+/// [`open_channel`]: https://github.com/lightning/bolts/blob/master/02-peer-protocol.md#the-open_channel-message
+#[derive(Clone, Debug, Hash, PartialEq, Eq)]
+pub struct OpenChannel {
+	/// Common fields of `open_channel(2)`-like messages
+	pub common_fields: CommonOpenChannelFields,
+	/// The amount to push to the counterparty as part of the open, in milli-satoshi
+	pub push_msat: u64,
+	/// The minimum value unencumbered by HTLCs for the counterparty to keep in the channel
+	pub channel_reserve_satoshis: u64,
+}
+
+/// An open_channel2 message to be sent by or received from the channel initiator.
+///
+/// Used in V2 channel establishment
+///
+// TODO(dual_funding): Add spec link for `open_channel2`.
+#[derive(Clone, Debug, Hash, PartialEq, Eq)]
+pub struct OpenChannelV2 {
+	/// Common fields of `open_channel(2)`-like messages
+	pub common_fields: CommonOpenChannelFields,
+	/// The feerate for the funding transaction set by the channel initiator
+	pub funding_feerate_sat_per_1000_weight: u32,
+	/// The locktime for the funding transaction
+	pub locktime: u32,
+	/// The second to-be-broadcast-by-channel-initiator transaction's per commitment point
+	pub second_per_commitment_point: PublicKey,
+	/// Optionally, a requirement that only confirmed inputs can be added
+	pub require_confirmed_inputs: Option<()>,
+}
+
+/// Contains fields that are both common to [`accept_channel`] and `accept_channel2` messages.
 ///
 /// [`accept_channel`]: https://github.com/lightning/bolts/blob/master/02-peer-protocol.md#the-accept_channel-message
-#[derive(Clone, Debug, PartialEq, Eq)]
-pub struct AcceptChannel {
-	/// A temporary channel ID, until the funding outpoint is announced
-	pub temporary_channel_id: [u8; 32],
-	/// The threshold below which outputs on transactions broadcast by sender will be omitted
+// TODO(dual_funding): Add spec link for `accept_channel2`.
+#[derive(Clone, Debug, Hash, PartialEq, Eq)]
+pub struct CommonAcceptChannelFields {
+	/// The same `temporary_channel_id` received from the initiator's `open_channel2` or `open_channel` message.
+	pub temporary_channel_id: ChannelId,
+	/// The threshold below which outputs on transactions broadcast by the channel acceptor will be
+	/// omitted
 	pub dust_limit_satoshis: u64,
 	/// The maximum inbound HTLC value in flight towards sender, in milli-satoshi
 	pub max_htlc_value_in_flight_msat: u64,
-	/// The minimum value unencumbered by HTLCs for the counterparty to keep in the channel
-	pub channel_reserve_satoshis: u64,
-	/// The minimum HTLC size incoming to sender, in milli-satoshi
+	/// The minimum HTLC size incoming to channel acceptor, in milli-satoshi
 	pub htlc_minimum_msat: u64,
 	/// Minimum depth of the funding transaction before the channel is considered open
 	pub minimum_depth: u32,
-	/// The number of blocks which the counterparty will have to wait to claim on-chain funds if they broadcast a commitment transaction
+	/// The number of blocks which the counterparty will have to wait to claim on-chain funds if they
+	/// broadcast a commitment transaction
 	pub to_self_delay: u16,
-	/// The maximum number of inbound HTLCs towards sender
+	/// The maximum number of inbound HTLCs towards channel acceptor
 	pub max_accepted_htlcs: u16,
-	/// The sender's key controlling the funding transaction
+	/// The channel acceptor's key controlling the funding transaction
 	pub funding_pubkey: PublicKey,
 	/// Used to derive a revocation key for transactions broadcast by counterparty
 	pub revocation_basepoint: PublicKey,
-	/// A payment key to sender for transactions broadcast by counterparty
-	pub payment_point: PublicKey,
-	/// Used to derive a payment key to sender for transactions broadcast by sender
+	/// A payment key to channel acceptor for transactions broadcast by counterparty
+	pub payment_basepoint: PublicKey,
+	/// Used to derive a payment key to channel acceptor for transactions broadcast by channel
+	/// acceptor
 	pub delayed_payment_basepoint: PublicKey,
-	/// Used to derive an HTLC payment key to sender for transactions broadcast by counterparty
+	/// Used to derive an HTLC payment key to channel acceptor for transactions broadcast by counterparty
 	pub htlc_basepoint: PublicKey,
-	/// The first to-be-broadcast-by-sender transaction's per commitment point
+	/// The first to-be-broadcast-by-channel-acceptor transaction's per commitment point
 	pub first_per_commitment_point: PublicKey,
-	/// Optionally, a request to pre-set the to-sender output's scriptPubkey for when we collaboratively close
-	pub shutdown_scriptpubkey: OptionalField<Script>,
-	/// The channel type that this channel will represent.
+	/// Optionally, a request to pre-set the to-channel-acceptor output's scriptPubkey for when we
+	/// collaboratively close
+	pub shutdown_scriptpubkey: Option<ScriptBuf>,
+	/// The channel type that this channel will represent. If none is set, we derive the channel
+	/// type from the intersection of our feature bits with our counterparty's feature bits from
+	/// the Init message.
 	///
-	/// If this is `None`, we derive the channel type from the intersection of
-	/// our feature bits with our counterparty's feature bits from the [`Init`] message.
-	/// This is required to match the equivalent field in [`OpenChannel::channel_type`].
+	/// This is required to match the equivalent field in [`OpenChannel`] or [`OpenChannelV2`]'s
+	/// [`CommonOpenChannelFields::channel_type`].
 	pub channel_type: Option<ChannelTypeFeatures>,
 }
 
+/// An [`accept_channel`] message to be sent to or received from a peer.
+///
+/// Used in V1 channel establishment
+///
+/// [`accept_channel`]: https://github.com/lightning/bolts/blob/master/02-peer-protocol.md#the-accept_channel-message
+#[derive(Clone, Debug, Hash, PartialEq, Eq)]
+pub struct AcceptChannel {
+	/// Common fields of `accept_channel(2)`-like messages
+	pub common_fields: CommonAcceptChannelFields,
+	/// The minimum value unencumbered by HTLCs for the counterparty to keep in the channel
+	pub channel_reserve_satoshis: u64,
+	#[cfg(taproot)]
+	/// Next nonce the channel initiator should use to create a funding output signature against
+	pub next_local_nonce: Option<musig2::types::PublicNonce>,
+}
+
+/// An accept_channel2 message to be sent by or received from the channel accepter.
+///
+/// Used in V2 channel establishment
+///
+// TODO(dual_funding): Add spec link for `accept_channel2`.
+#[derive(Clone, Debug, Hash, PartialEq, Eq)]
+pub struct AcceptChannelV2 {
+	/// Common fields of `accept_channel(2)`-like messages
+	pub common_fields: CommonAcceptChannelFields,
+	/// Part of the channel value contributed by the channel acceptor
+	pub funding_satoshis: u64,
+	/// The second to-be-broadcast-by-channel-acceptor transaction's per commitment point
+	pub second_per_commitment_point: PublicKey,
+	/// Optionally, a requirement that only confirmed inputs can be added
+	pub require_confirmed_inputs: Option<()>,
+}
+
 /// A [`funding_created`] message to be sent to or received from a peer.
 ///
+/// Used in V1 channel establishment
+///
 /// [`funding_created`]: https://github.com/lightning/bolts/blob/master/02-peer-protocol.md#the-funding_created-message
-#[derive(Clone, Debug, PartialEq, Eq)]
+#[derive(Clone, Debug, Hash, PartialEq, Eq)]
 pub struct FundingCreated {
 	/// A temporary channel ID, until the funding is established
-	pub temporary_channel_id: [u8; 32],
+	pub temporary_channel_id: ChannelId,
 	/// The funding transaction ID
 	pub funding_txid: Txid,
 	/// The specific output index funding this channel
 	pub funding_output_index: u16,
 	/// The signature of the channel initiator (funder) on the initial commitment transaction
 	pub signature: Signature,
+	#[cfg(taproot)]
+	/// The partial signature of the channel initiator (funder)
+	pub partial_signature_with_nonce: Option<PartialSignatureWithNonce>,
+	#[cfg(taproot)]
+	/// Next nonce the channel acceptor should use to finalize the funding output signature
+	pub next_local_nonce: Option<musig2::types::PublicNonce>
 }
 
 /// A [`funding_signed`] message to be sent to or received from a peer.
 ///
+/// Used in V1 channel establishment
+///
 /// [`funding_signed`]: https://github.com/lightning/bolts/blob/master/02-peer-protocol.md#the-funding_signed-message
-#[derive(Clone, Debug, PartialEq, Eq)]
+#[derive(Clone, Debug, Hash, PartialEq, Eq)]
 pub struct FundingSigned {
 	/// The channel ID
-	pub channel_id: [u8; 32],
+	pub channel_id: ChannelId,
 	/// The signature of the channel acceptor (fundee) on the initial commitment transaction
 	pub signature: Signature,
+	#[cfg(taproot)]
+	/// The partial signature of the channel acceptor (fundee)
+	pub partial_signature_with_nonce: Option<PartialSignatureWithNonce>,
 }
 
 /// A [`channel_ready`] message to be sent to or received from a peer.
 ///
 /// [`channel_ready`]: https://github.com/lightning/bolts/blob/master/02-peer-protocol.md#the-channel_ready-message
-#[derive(Clone, Debug, PartialEq, Eq)]
+#[derive(Clone, Debug, Hash, PartialEq, Eq)]
 pub struct ChannelReady {
 	/// The channel ID
-	pub channel_id: [u8; 32],
+	pub channel_id: ChannelId,
 	/// The per-commitment point of the second commitment transaction
 	pub next_per_commitment_point: PublicKey,
 	/// If set, provides a `short_channel_id` alias for this channel.
@@ -286,24 +396,204 @@ pub struct ChannelReady {
 	pub short_channel_id_alias: Option<u64>,
 }
 
+/// A randomly chosen number that is used to identify inputs within an interactive transaction
+/// construction.
+pub type SerialId = u64;
+
+/// An stfu (quiescence) message to be sent by or received from the stfu initiator.
+// TODO(splicing): Add spec link for `stfu`; still in draft, using from https://github.com/lightning/bolts/pull/863
+#[derive(Clone, Debug, PartialEq, Eq)]
+pub struct Stfu {
+	/// The channel ID where quiescence is intended
+	pub channel_id: ChannelId,
+	/// Initiator flag, 1 if initiating, 0 if replying to an stfu.
+	pub initiator: u8,
+}
+
+/// A splice message to be sent by or received from the stfu initiator (splice initiator).
+// TODO(splicing): Add spec link for `splice`; still in draft, using from https://github.com/lightning/bolts/pull/863
+#[derive(Clone, Debug, PartialEq, Eq)]
+pub struct Splice {
+	/// The channel ID where splicing is intended
+	pub channel_id: ChannelId,
+	/// The genesis hash of the blockchain where the channel is intended to be spliced
+	pub chain_hash: ChainHash,
+	/// The intended change in channel capacity: the amount to be added (positive value)
+	/// or removed (negative value) by the sender (splice initiator) by splicing into/from the channel.
+	pub relative_satoshis: i64,
+	/// The feerate for the new funding transaction, set by the splice initiator
+	pub funding_feerate_perkw: u32,
+	/// The locktime for the new funding transaction
+	pub locktime: u32,
+	/// The key of the sender (splice initiator) controlling the new funding transaction
+	pub funding_pubkey: PublicKey,
+}
+
+/// A splice_ack message to be received by or sent to the splice initiator.
+///
+// TODO(splicing): Add spec link for `splice_ack`; still in draft, using from https://github.com/lightning/bolts/pull/863
+#[derive(Clone, Debug, PartialEq, Eq)]
+pub struct SpliceAck {
+	/// The channel ID where splicing is intended
+	pub channel_id: ChannelId,
+	/// The genesis hash of the blockchain where the channel is intended to be spliced
+	pub chain_hash: ChainHash,
+	/// The intended change in channel capacity: the amount to be added (positive value)
+	/// or removed (negative value) by the sender (splice acceptor) by splicing into/from the channel.
+	pub relative_satoshis: i64,
+	/// The key of the sender (splice acceptor) controlling the new funding transaction
+	pub funding_pubkey: PublicKey,
+}
+
+/// A splice_locked message to be sent to or received from a peer.
+///
+// TODO(splicing): Add spec link for `splice_locked`; still in draft, using from https://github.com/lightning/bolts/pull/863
+#[derive(Clone, Debug, PartialEq, Eq)]
+pub struct SpliceLocked {
+	/// The channel ID
+	pub channel_id: ChannelId,
+}
+
+/// A tx_add_input message for adding an input during interactive transaction construction
+///
+// TODO(dual_funding): Add spec link for `tx_add_input`.
+#[derive(Clone, Debug, Hash, PartialEq, Eq)]
+pub struct TxAddInput {
+	/// The channel ID
+	pub channel_id: ChannelId,
+	/// A randomly chosen unique identifier for this input, which is even for initiators and odd for
+	/// non-initiators.
+	pub serial_id: SerialId,
+	/// Serialized transaction that contains the output this input spends to verify that it is non
+	/// malleable.
+	pub prevtx: TransactionU16LenLimited,
+	/// The index of the output being spent
+	pub prevtx_out: u32,
+	/// The sequence number of this input
+	pub sequence: u32,
+}
+
+/// A tx_add_output message for adding an output during interactive transaction construction.
+///
+// TODO(dual_funding): Add spec link for `tx_add_output`.
+#[derive(Clone, Debug, Hash, PartialEq, Eq)]
+pub struct TxAddOutput {
+	/// The channel ID
+	pub channel_id: ChannelId,
+	/// A randomly chosen unique identifier for this output, which is even for initiators and odd for
+	/// non-initiators.
+	pub serial_id: SerialId,
+	/// The satoshi value of the output
+	pub sats: u64,
+	/// The scriptPubKey for the output
+	pub script: ScriptBuf,
+}
+
+/// A tx_remove_input message for removing an input during interactive transaction construction.
+///
+// TODO(dual_funding): Add spec link for `tx_remove_input`.
+#[derive(Clone, Debug, Hash, PartialEq, Eq)]
+pub struct TxRemoveInput {
+	/// The channel ID
+	pub channel_id: ChannelId,
+	/// The serial ID of the input to be removed
+	pub serial_id: SerialId,
+}
+
+/// A tx_remove_output message for removing an output during interactive transaction construction.
+///
+// TODO(dual_funding): Add spec link for `tx_remove_output`.
+#[derive(Clone, Debug, Hash, PartialEq, Eq)]
+pub struct TxRemoveOutput {
+	/// The channel ID
+	pub channel_id: ChannelId,
+	/// The serial ID of the output to be removed
+	pub serial_id: SerialId,
+}
+
+/// A tx_complete message signalling the conclusion of a peer's transaction contributions during
+/// interactive transaction construction.
+///
+// TODO(dual_funding): Add spec link for `tx_complete`.
+#[derive(Clone, Debug, Hash, PartialEq, Eq)]
+pub struct TxComplete {
+	/// The channel ID
+	pub channel_id: ChannelId,
+}
+
+/// A tx_signatures message containing the sender's signatures for a transaction constructed with
+/// interactive transaction construction.
+///
+// TODO(dual_funding): Add spec link for `tx_signatures`.
+#[derive(Clone, Debug, Hash, PartialEq, Eq)]
+pub struct TxSignatures {
+	/// The channel ID
+	pub channel_id: ChannelId,
+	/// The TXID
+	pub tx_hash: Txid,
+	/// The list of witnesses
+	pub witnesses: Vec<Witness>,
+}
+
+/// A tx_init_rbf message which initiates a replacement of the transaction after it's been
+/// completed.
+///
+// TODO(dual_funding): Add spec link for `tx_init_rbf`.
+#[derive(Clone, Debug, Hash, PartialEq, Eq)]
+pub struct TxInitRbf {
+	/// The channel ID
+	pub channel_id: ChannelId,
+	/// The locktime of the transaction
+	pub locktime: u32,
+	/// The feerate of the transaction
+	pub feerate_sat_per_1000_weight: u32,
+	/// The number of satoshis the sender will contribute to or, if negative, remove from
+	/// (e.g. splice-out) the funding output of the transaction
+	pub funding_output_contribution: Option<i64>,
+}
+
+/// A tx_ack_rbf message which acknowledges replacement of the transaction after it's been
+/// completed.
+///
+// TODO(dual_funding): Add spec link for `tx_ack_rbf`.
+#[derive(Clone, Debug, Hash, PartialEq, Eq)]
+pub struct TxAckRbf {
+	/// The channel ID
+	pub channel_id: ChannelId,
+	/// The number of satoshis the sender will contribute to or, if negative, remove from
+	/// (e.g. splice-out) the funding output of the transaction
+	pub funding_output_contribution: Option<i64>,
+}
+
+/// A tx_abort message which signals the cancellation of an in-progress transaction negotiation.
+///
+// TODO(dual_funding): Add spec link for `tx_abort`.
+#[derive(Clone, Debug, Hash, PartialEq, Eq)]
+pub struct TxAbort {
+	/// The channel ID
+	pub channel_id: ChannelId,
+	/// Message data
+	pub data: Vec<u8>,
+}
+
 /// A [`shutdown`] message to be sent to or received from a peer.
 ///
 /// [`shutdown`]: https://github.com/lightning/bolts/blob/master/02-peer-protocol.md#closing-initiation-shutdown
-#[derive(Clone, Debug, PartialEq, Eq)]
+#[derive(Clone, Debug, Hash, PartialEq, Eq)]
 pub struct Shutdown {
 	/// The channel ID
-	pub channel_id: [u8; 32],
+	pub channel_id: ChannelId,
 	/// The destination of this peer's funds on closing.
 	///
 	/// Must be in one of these forms: P2PKH, P2SH, P2WPKH, P2WSH, P2TR.
-	pub scriptpubkey: Script,
+	pub scriptpubkey: ScriptBuf,
 }
 
 /// The minimum and maximum fees which the sender is willing to place on the closing transaction.
 ///
 /// This is provided in [`ClosingSigned`] by both sides to indicate the fee range they are willing
 /// to use.
-#[derive(Clone, Debug, PartialEq, Eq)]
+#[derive(Clone, Debug, Hash, PartialEq, Eq)]
 pub struct ClosingSignedFeeRange {
 	/// The minimum absolute fee, in satoshis, which the sender is willing to place on the closing
 	/// transaction.
@@ -316,10 +606,10 @@ pub struct ClosingSignedFeeRange {
 /// A [`closing_signed`] message to be sent to or received from a peer.
 ///
 /// [`closing_signed`]: https://github.com/lightning/bolts/blob/master/02-peer-protocol.md#closing-negotiation-closing_signed
-#[derive(Clone, Debug, PartialEq, Eq)]
+#[derive(Clone, Debug, Hash, PartialEq, Eq)]
 pub struct ClosingSigned {
 	/// The channel ID
-	pub channel_id: [u8; 32],
+	pub channel_id: ChannelId,
 	/// The proposed total fee for the closing transaction
 	pub fee_satoshis: u64,
 	/// A signature on the closing transaction
@@ -332,10 +622,10 @@ pub struct ClosingSigned {
 /// An [`update_add_htlc`] message to be sent to or received from a peer.
 ///
 /// [`update_add_htlc`]: https://github.com/lightning/bolts/blob/master/02-peer-protocol.md#adding-an-htlc-update_add_htlc
-#[derive(Clone, Debug, PartialEq, Eq)]
+#[derive(Clone, Debug, Hash, PartialEq, Eq)]
 pub struct UpdateAddHTLC {
 	/// The channel ID
-	pub channel_id: [u8; 32],
+	pub channel_id: ChannelId,
 	/// The HTLC ID
 	pub htlc_id: u64,
 	/// The HTLC value in milli-satoshi
@@ -344,26 +634,36 @@ pub struct UpdateAddHTLC {
 	pub payment_hash: PaymentHash,
 	/// The expiry height of the HTLC
 	pub cltv_expiry: u32,
-	pub(crate) onion_routing_packet: OnionPacket,
+	/// The extra fee skimmed by the sender of this message. See
+	/// [`ChannelConfig::accept_underpaying_htlcs`].
+	///
+	/// [`ChannelConfig::accept_underpaying_htlcs`]: crate::util::config::ChannelConfig::accept_underpaying_htlcs
+	pub skimmed_fee_msat: Option<u64>,
+	/// The onion routing packet with encrypted data for the next hop.
+	pub onion_routing_packet: OnionPacket,
+	/// Provided if we are relaying or receiving a payment within a blinded path, to decrypt the onion
+	/// routing packet and the recipient-provided encrypted payload within.
+	pub blinding_point: Option<PublicKey>,
 }
 
  /// An onion message to be sent to or received from a peer.
  ///
  // TODO: update with link to OM when they are merged into the BOLTs
-#[derive(Clone, Debug, PartialEq, Eq)]
+#[derive(Clone, Debug, Hash, PartialEq, Eq)]
 pub struct OnionMessage {
 	/// Used in decrypting the onion packet's payload.
 	pub blinding_point: PublicKey,
-	pub(crate) onion_routing_packet: onion_message::Packet,
+	/// The full onion packet including hop data, pubkey, and hmac
+	pub onion_routing_packet: onion_message::packet::Packet,
 }
 
 /// An [`update_fulfill_htlc`] message to be sent to or received from a peer.
 ///
 /// [`update_fulfill_htlc`]: https://github.com/lightning/bolts/blob/master/02-peer-protocol.md#removing-an-htlc-update_fulfill_htlc-update_fail_htlc-and-update_fail_malformed_htlc
-#[derive(Clone, Debug, PartialEq, Eq)]
+#[derive(Clone, Debug, Hash, PartialEq, Eq)]
 pub struct UpdateFulfillHTLC {
 	/// The channel ID
-	pub channel_id: [u8; 32],
+	pub channel_id: ChannelId,
 	/// The HTLC ID
 	pub htlc_id: u64,
 	/// The pre-image of the payment hash, allowing HTLC redemption
@@ -373,10 +673,10 @@ pub struct UpdateFulfillHTLC {
 /// An [`update_fail_htlc`] message to be sent to or received from a peer.
 ///
 /// [`update_fail_htlc`]: https://github.com/lightning/bolts/blob/master/02-peer-protocol.md#removing-an-htlc-update_fulfill_htlc-update_fail_htlc-and-update_fail_malformed_htlc
-#[derive(Clone, Debug, PartialEq, Eq)]
+#[derive(Clone, Debug, Hash, PartialEq, Eq)]
 pub struct UpdateFailHTLC {
 	/// The channel ID
-	pub channel_id: [u8; 32],
+	pub channel_id: ChannelId,
 	/// The HTLC ID
 	pub htlc_id: u64,
 	pub(crate) reason: OnionErrorPacket,
@@ -385,10 +685,10 @@ pub struct UpdateFailHTLC {
 /// An [`update_fail_malformed_htlc`] message to be sent to or received from a peer.
 ///
 /// [`update_fail_malformed_htlc`]: https://github.com/lightning/bolts/blob/master/02-peer-protocol.md#removing-an-htlc-update_fulfill_htlc-update_fail_htlc-and-update_fail_malformed_htlc
-#[derive(Clone, Debug, PartialEq, Eq)]
+#[derive(Clone, Debug, Hash, PartialEq, Eq)]
 pub struct UpdateFailMalformedHTLC {
 	/// The channel ID
-	pub channel_id: [u8; 32],
+	pub channel_id: ChannelId,
 	/// The HTLC ID
 	pub htlc_id: u64,
 	pub(crate) sha256_of_onion: [u8; 32],
@@ -399,76 +699,73 @@ pub struct UpdateFailMalformedHTLC {
 /// A [`commitment_signed`] message to be sent to or received from a peer.
 ///
 /// [`commitment_signed`]: https://github.com/lightning/bolts/blob/master/02-peer-protocol.md#committing-updates-so-far-commitment_signed
-#[derive(Clone, Debug, PartialEq, Eq)]
+#[derive(Clone, Debug, Hash, PartialEq, Eq)]
 pub struct CommitmentSigned {
 	/// The channel ID
-	pub channel_id: [u8; 32],
+	pub channel_id: ChannelId,
 	/// A signature on the commitment transaction
 	pub signature: Signature,
 	/// Signatures on the HTLC transactions
 	pub htlc_signatures: Vec<Signature>,
+	#[cfg(taproot)]
+	/// The partial Taproot signature on the commitment transaction
+	pub partial_signature_with_nonce: Option<PartialSignatureWithNonce>,
 }
 
 /// A [`revoke_and_ack`] message to be sent to or received from a peer.
 ///
 /// [`revoke_and_ack`]: https://github.com/lightning/bolts/blob/master/02-peer-protocol.md#completing-the-transition-to-the-updated-state-revoke_and_ack
-#[derive(Clone, Debug, PartialEq, Eq)]
+#[derive(Clone, Debug, Hash, PartialEq, Eq)]
 pub struct RevokeAndACK {
 	/// The channel ID
-	pub channel_id: [u8; 32],
+	pub channel_id: ChannelId,
 	/// The secret corresponding to the per-commitment point
 	pub per_commitment_secret: [u8; 32],
 	/// The next sender-broadcast commitment transaction's per-commitment point
 	pub next_per_commitment_point: PublicKey,
+	#[cfg(taproot)]
+	/// Musig nonce the recipient should use in their next commitment signature message
+	pub next_local_nonce: Option<musig2::types::PublicNonce>
 }
 
 /// An [`update_fee`] message to be sent to or received from a peer
 ///
 /// [`update_fee`]: https://github.com/lightning/bolts/blob/master/02-peer-protocol.md#updating-fees-update_fee
-#[derive(Clone, Debug, PartialEq, Eq)]
+#[derive(Clone, Debug, Hash, PartialEq, Eq)]
 pub struct UpdateFee {
 	/// The channel ID
-	pub channel_id: [u8; 32],
+	pub channel_id: ChannelId,
 	/// Fee rate per 1000-weight of the transaction
 	pub feerate_per_kw: u32,
 }
 
-#[derive(Clone, Debug, PartialEq, Eq)]
-/// Proof that the sender knows the per-commitment secret of the previous commitment transaction.
-///
-/// This is used to convince the recipient that the channel is at a certain commitment
-/// number even if they lost that data due to a local failure. Of course, the peer may lie
-/// and even later commitments may have been revoked.
-pub struct DataLossProtect {
-	/// Proof that the sender knows the per-commitment secret of a specific commitment transaction
-	/// belonging to the recipient
-	pub your_last_per_commitment_secret: [u8; 32],
-	/// The sender's per-commitment point for their current commitment transaction
-	pub my_current_per_commitment_point: PublicKey,
-}
-
 /// A [`channel_reestablish`] message to be sent to or received from a peer.
 ///
 /// [`channel_reestablish`]: https://github.com/lightning/bolts/blob/master/02-peer-protocol.md#message-retransmission
-#[derive(Clone, Debug, PartialEq, Eq)]
+#[derive(Clone, Debug, Hash, PartialEq, Eq)]
 pub struct ChannelReestablish {
 	/// The channel ID
-	pub channel_id: [u8; 32],
+	pub channel_id: ChannelId,
 	/// The next commitment number for the sender
 	pub next_local_commitment_number: u64,
 	/// The next commitment number for the recipient
 	pub next_remote_commitment_number: u64,
-	/// Optionally, a field proving that next_remote_commitment_number-1 has been revoked
-	pub data_loss_protect: OptionalField<DataLossProtect>,
+	/// Proof that the sender knows the per-commitment secret of a specific commitment transaction
+	/// belonging to the recipient
+	pub your_last_per_commitment_secret: [u8; 32],
+	/// The sender's per-commitment point for their current commitment transaction
+	pub my_current_per_commitment_point: PublicKey,
+	/// The next funding transaction ID
+	pub next_funding_txid: Option<Txid>,
 }
 
 /// An [`announcement_signatures`] message to be sent to or received from a peer.
 ///
 /// [`announcement_signatures`]: https://github.com/lightning/bolts/blob/master/07-routing-gossip.md#the-announcement_signatures-message
-#[derive(Clone, Debug, PartialEq, Eq)]
+#[derive(Clone, Debug, Hash, PartialEq, Eq)]
 pub struct AnnouncementSignatures {
 	/// The channel ID
-	pub channel_id: [u8; 32],
+	pub channel_id: ChannelId,
 	/// The short channel ID
 	pub short_channel_id: u64,
 	/// A signature by the node key
@@ -478,17 +775,17 @@ pub struct AnnouncementSignatures {
 }
 
 /// An address which can be used to connect to a remote peer.
-#[derive(Clone, Debug, PartialEq, Eq)]
-pub enum NetAddress {
-	/// An IPv4 address/port on which the peer is listening.
-	IPv4 {
+#[derive(Clone, Debug, Hash, PartialEq, Eq)]
+pub enum SocketAddress {
+	/// An IPv4 address and port on which the peer is listening.
+	TcpIpV4 {
 		/// The 4-byte IPv4 address
 		addr: [u8; 4],
 		/// The port on which the node is listening
 		port: u16,
 	},
-	/// An IPv6 address/port on which the peer is listening.
-	IPv6 {
+	/// An IPv6 address and port on which the peer is listening.
+	TcpIpV6 {
 		/// The 16-byte IPv6 address
 		addr: [u8; 16],
 		/// The port on which the node is listening
@@ -521,28 +818,28 @@ pub enum NetAddress {
 		port: u16,
 	},
 }
-impl NetAddress {
+impl SocketAddress {
 	/// Gets the ID of this address type. Addresses in [`NodeAnnouncement`] messages should be sorted
 	/// by this.
 	pub(crate) fn get_id(&self) -> u8 {
 		match self {
-			&NetAddress::IPv4 {..} => { 1 },
-			&NetAddress::IPv6 {..} => { 2 },
-			&NetAddress::OnionV2(_) => { 3 },
-			&NetAddress::OnionV3 {..} => { 4 },
-			&NetAddress::Hostname {..} => { 5 },
+			&SocketAddress::TcpIpV4 {..} => { 1 },
+			&SocketAddress::TcpIpV6 {..} => { 2 },
+			&SocketAddress::OnionV2(_) => { 3 },
+			&SocketAddress::OnionV3 {..} => { 4 },
+			&SocketAddress::Hostname {..} => { 5 },
 		}
 	}
 
 	/// Strict byte-length of address descriptor, 1-byte type not recorded
 	fn len(&self) -> u16 {
 		match self {
-			&NetAddress::IPv4 { .. } => { 6 },
-			&NetAddress::IPv6 { .. } => { 18 },
-			&NetAddress::OnionV2(_) => { 12 },
-			&NetAddress::OnionV3 { .. } => { 37 },
+			&SocketAddress::TcpIpV4 { .. } => { 6 },
+			&SocketAddress::TcpIpV6 { .. } => { 18 },
+			&SocketAddress::OnionV2(_) => { 12 },
+			&SocketAddress::OnionV3 { .. } => { 37 },
 			// Consists of 1-byte hostname length, hostname bytes, and 2-byte port.
-			&NetAddress::Hostname { ref hostname, .. } => { u16::from(hostname.len()) + 3 },
+			&SocketAddress::Hostname { ref hostname, .. } => { u16::from(hostname.len()) + 3 },
 		}
 	}
 
@@ -550,33 +847,43 @@ impl NetAddress {
 	/// This maximum length is reached by a hostname address descriptor:
 	/// a hostname with a maximum length of 255, its 1-byte length and a 2-byte port.
 	pub(crate) const MAX_LEN: u16 = 258;
+
+	pub(crate) fn is_tor(&self) -> bool {
+		match self {
+			&SocketAddress::TcpIpV4 {..} => false,
+			&SocketAddress::TcpIpV6 {..} => false,
+			&SocketAddress::OnionV2(_) => true,
+			&SocketAddress::OnionV3 {..} => true,
+			&SocketAddress::Hostname {..} => false,
+		}
+	}
 }
 
-impl Writeable for NetAddress {
+impl Writeable for SocketAddress {
 	fn write<W: Writer>(&self, writer: &mut W) -> Result<(), io::Error> {
 		match self {
-			&NetAddress::IPv4 { ref addr, ref port } => {
+			&SocketAddress::TcpIpV4 { ref addr, ref port } => {
 				1u8.write(writer)?;
 				addr.write(writer)?;
 				port.write(writer)?;
 			},
-			&NetAddress::IPv6 { ref addr, ref port } => {
+			&SocketAddress::TcpIpV6 { ref addr, ref port } => {
 				2u8.write(writer)?;
 				addr.write(writer)?;
 				port.write(writer)?;
 			},
-			&NetAddress::OnionV2(bytes) => {
+			&SocketAddress::OnionV2(bytes) => {
 				3u8.write(writer)?;
 				bytes.write(writer)?;
 			},
-			&NetAddress::OnionV3 { ref ed25519_pubkey, ref checksum, ref version, ref port } => {
+			&SocketAddress::OnionV3 { ref ed25519_pubkey, ref checksum, ref version, ref port } => {
 				4u8.write(writer)?;
 				ed25519_pubkey.write(writer)?;
 				checksum.write(writer)?;
 				version.write(writer)?;
 				port.write(writer)?;
 			},
-			&NetAddress::Hostname { ref hostname, ref port } => {
+			&SocketAddress::Hostname { ref hostname, ref port } => {
 				5u8.write(writer)?;
 				hostname.write(writer)?;
 				port.write(writer)?;
@@ -586,25 +893,25 @@ impl Writeable for NetAddress {
 	}
 }
 
-impl Readable for Result<NetAddress, u8> {
-	fn read<R: Read>(reader: &mut R) -> Result<Result<NetAddress, u8>, DecodeError> {
+impl Readable for Result<SocketAddress, u8> {
+	fn read<R: Read>(reader: &mut R) -> Result<Result<SocketAddress, u8>, DecodeError> {
 		let byte = <u8 as Readable>::read(reader)?;
 		match byte {
 			1 => {
-				Ok(Ok(NetAddress::IPv4 {
+				Ok(Ok(SocketAddress::TcpIpV4 {
 					addr: Readable::read(reader)?,
 					port: Readable::read(reader)?,
 				}))
 			},
 			2 => {
-				Ok(Ok(NetAddress::IPv6 {
+				Ok(Ok(SocketAddress::TcpIpV6 {
 					addr: Readable::read(reader)?,
 					port: Readable::read(reader)?,
 				}))
 			},
-			3 => Ok(Ok(NetAddress::OnionV2(Readable::read(reader)?))),
+			3 => Ok(Ok(SocketAddress::OnionV2(Readable::read(reader)?))),
 			4 => {
-				Ok(Ok(NetAddress::OnionV3 {
+				Ok(Ok(SocketAddress::OnionV3 {
 					ed25519_pubkey: Readable::read(reader)?,
 					checksum: Readable::read(reader)?,
 					version: Readable::read(reader)?,
@@ -612,7 +919,7 @@ impl Readable for Result<NetAddress, u8> {
 				}))
 			},
 			5 => {
-				Ok(Ok(NetAddress::Hostname {
+				Ok(Ok(SocketAddress::Hostname {
 					hostname: Readable::read(reader)?,
 					port: Readable::read(reader)?,
 				}))
@@ -622,8 +929,8 @@ impl Readable for Result<NetAddress, u8> {
 	}
 }
 
-impl Readable for NetAddress {
-	fn read<R: Read>(reader: &mut R) -> Result<NetAddress, DecodeError> {
+impl Readable for SocketAddress {
+	fn read<R: Read>(reader: &mut R) -> Result<SocketAddress, DecodeError> {
 		match Readable::read(reader) {
 			Ok(Ok(res)) => Ok(res),
 			Ok(Err(_)) => Err(DecodeError::UnknownVersion),
@@ -632,11 +939,191 @@ impl Readable for NetAddress {
 	}
 }
 
+/// [`SocketAddress`] error variants
+#[derive(Clone, Debug, Hash, PartialEq, Eq)]
+pub enum SocketAddressParseError {
+	/// Socket address (IPv4/IPv6) parsing error
+	SocketAddrParse,
+	/// Invalid input format
+	InvalidInput,
+	/// Invalid port
+	InvalidPort,
+	/// Invalid onion v3 address
+	InvalidOnionV3,
+}
+
+impl fmt::Display for SocketAddressParseError {
+	fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+		match self {
+			SocketAddressParseError::SocketAddrParse => write!(f, "Socket address (IPv4/IPv6) parsing error"),
+			SocketAddressParseError::InvalidInput => write!(f, "Invalid input format. \
+				Expected: \"<ipv4>:<port>\", \"[<ipv6>]:<port>\", \"<onion address>.onion:<port>\" or \"<hostname>:<port>\""),
+			SocketAddressParseError::InvalidPort => write!(f, "Invalid port"),
+			SocketAddressParseError::InvalidOnionV3 => write!(f, "Invalid onion v3 address"),
+		}
+	}
+}
+
+#[cfg(feature = "std")]
+impl From<std::net::SocketAddrV4> for SocketAddress {
+		fn from(addr: std::net::SocketAddrV4) -> Self {
+			SocketAddress::TcpIpV4 { addr: addr.ip().octets(), port: addr.port() }
+		}
+}
+
+#[cfg(feature = "std")]
+impl From<std::net::SocketAddrV6> for SocketAddress {
+		fn from(addr: std::net::SocketAddrV6) -> Self {
+			SocketAddress::TcpIpV6 { addr: addr.ip().octets(), port: addr.port() }
+		}
+}
+
+#[cfg(feature = "std")]
+impl From<std::net::SocketAddr> for SocketAddress {
+		fn from(addr: std::net::SocketAddr) -> Self {
+			match addr {
+				std::net::SocketAddr::V4(addr) => addr.into(),
+				std::net::SocketAddr::V6(addr) => addr.into(),
+			}
+		}
+}
+
+#[cfg(feature = "std")]
+impl std::net::ToSocketAddrs for SocketAddress {
+	type Iter = std::vec::IntoIter<std::net::SocketAddr>;
+
+	fn to_socket_addrs(&self) -> std::io::Result<Self::Iter> {
+		match self {
+			SocketAddress::TcpIpV4 { addr, port } => {
+				let ip_addr = std::net::Ipv4Addr::from(*addr);
+				let socket_addr = SocketAddr::new(ip_addr.into(), *port);
+				Ok(vec![socket_addr].into_iter())
+			}
+			SocketAddress::TcpIpV6 { addr, port } => {
+				let ip_addr = std::net::Ipv6Addr::from(*addr);
+				let socket_addr = SocketAddr::new(ip_addr.into(), *port);
+				Ok(vec![socket_addr].into_iter())
+			}
+			SocketAddress::Hostname { ref hostname, port } => {
+				(hostname.as_str(), *port).to_socket_addrs()
+			}
+			SocketAddress::OnionV2(..) => {
+				Err(std::io::Error::new(std::io::ErrorKind::Other, "Resolution of OnionV2 \
+				addresses is currently unsupported."))
+			}
+			SocketAddress::OnionV3 { .. } => {
+				Err(std::io::Error::new(std::io::ErrorKind::Other, "Resolution of OnionV3 \
+				addresses is currently unsupported."))
+			}
+		}
+	}
+}
+
+/// Parses an OnionV3 host and port into a [`SocketAddress::OnionV3`].
+///
+/// The host part must end with ".onion".
+pub fn parse_onion_address(host: &str, port: u16) -> Result<SocketAddress, SocketAddressParseError> {
+	if host.ends_with(".onion") {
+		let domain = &host[..host.len() - ".onion".len()];
+		if domain.len() != 56 {
+			return Err(SocketAddressParseError::InvalidOnionV3);
+		}
+		let onion =  base32::Alphabet::RFC4648 { padding: false }.decode(&domain).map_err(|_| SocketAddressParseError::InvalidOnionV3)?;
+		if onion.len() != 35 {
+			return Err(SocketAddressParseError::InvalidOnionV3);
+		}
+		let version = onion[0];
+		let first_checksum_flag = onion[1];
+		let second_checksum_flag = onion[2];
+		let mut ed25519_pubkey = [0; 32];
+		ed25519_pubkey.copy_from_slice(&onion[3..35]);
+		let checksum = u16::from_be_bytes([first_checksum_flag, second_checksum_flag]);
+		return Ok(SocketAddress::OnionV3 { ed25519_pubkey, checksum, version, port });
+
+	} else {
+		return Err(SocketAddressParseError::InvalidInput);
+	}
+}
+
+impl Display for SocketAddress {
+	fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
+		match self {
+			SocketAddress::TcpIpV4{addr, port} => write!(
+				f, "{}.{}.{}.{}:{}", addr[0], addr[1], addr[2], addr[3], port)?,
+			SocketAddress::TcpIpV6{addr, port} => write!(
+				f,
+				"[{:02x}{:02x}:{:02x}{:02x}:{:02x}{:02x}:{:02x}{:02x}:{:02x}{:02x}:{:02x}{:02x}:{:02x}{:02x}:{:02x}{:02x}]:{}",
+				addr[0], addr[1], addr[2], addr[3], addr[4], addr[5], addr[6], addr[7], addr[8], addr[9], addr[10], addr[11], addr[12], addr[13], addr[14], addr[15], port
+			)?,
+			SocketAddress::OnionV2(bytes) => write!(f, "OnionV2({:?})", bytes)?,
+			SocketAddress::OnionV3 {
+				ed25519_pubkey,
+				checksum,
+				version,
+				port,
+			} => {
+				let [first_checksum_flag, second_checksum_flag] = checksum.to_be_bytes();
+				let mut addr = vec![*version, first_checksum_flag, second_checksum_flag];
+				addr.extend_from_slice(ed25519_pubkey);
+				let onion = base32::Alphabet::RFC4648 { padding: false }.encode(&addr);
+				write!(f, "{}.onion:{}", onion, port)?
+			},
+			SocketAddress::Hostname { hostname, port } => write!(f, "{}:{}", hostname, port)?,
+		}
+		Ok(())
+	}
+}
+
+#[cfg(feature = "std")]
+impl FromStr for SocketAddress {
+	type Err = SocketAddressParseError;
+
+	fn from_str(s: &str) -> Result<Self, Self::Err> {
+		match std::net::SocketAddr::from_str(s) {
+			Ok(addr) => Ok(addr.into()),
+			Err(_) => {
+				let trimmed_input = match s.rfind(":") {
+					Some(pos) => pos,
+					None => return Err(SocketAddressParseError::InvalidInput),
+				};
+				let host = &s[..trimmed_input];
+				let port: u16 = s[trimmed_input + 1..].parse().map_err(|_| SocketAddressParseError::InvalidPort)?;
+				if host.ends_with(".onion") {
+					return parse_onion_address(host, port);
+				};
+				if let Ok(hostname) = Hostname::try_from(s[..trimmed_input].to_string()) {
+					return Ok(SocketAddress::Hostname { hostname, port });
+				};
+				return Err(SocketAddressParseError::SocketAddrParse)
+			},
+		}
+	}
+}
+
+/// Represents the set of gossip messages that require a signature from a node's identity key.
+pub enum UnsignedGossipMessage<'a> {
+	/// An unsigned channel announcement.
+	ChannelAnnouncement(&'a UnsignedChannelAnnouncement),
+	/// An unsigned channel update.
+	ChannelUpdate(&'a UnsignedChannelUpdate),
+	/// An unsigned node announcement.
+	NodeAnnouncement(&'a UnsignedNodeAnnouncement)
+}
+
+impl<'a> Writeable for UnsignedGossipMessage<'a> {
+	fn write<W: Writer>(&self, writer: &mut W) -> Result<(), io::Error> {
+		match self {
+			UnsignedGossipMessage::ChannelAnnouncement(ref msg) => msg.write(writer),
+			UnsignedGossipMessage::ChannelUpdate(ref msg) => msg.write(writer),
+			UnsignedGossipMessage::NodeAnnouncement(ref msg) => msg.write(writer),
+		}
+	}
+}
 
 /// The unsigned part of a [`node_announcement`] message.
 ///
 /// [`node_announcement`]: https://github.com/lightning/bolts/blob/master/07-routing-gossip.md#the-node_announcement-message
-#[derive(Clone, Debug, PartialEq, Eq)]
+#[derive(Clone, Debug, Hash, PartialEq, Eq)]
 pub struct UnsignedNodeAnnouncement {
 	/// The advertised features
 	pub features: NodeFeatures,
@@ -644,19 +1131,27 @@ pub struct UnsignedNodeAnnouncement {
 	pub timestamp: u32,
 	/// The `node_id` this announcement originated from (don't rebroadcast the `node_announcement` back
 	/// to this node).
-	pub node_id: PublicKey,
+	pub node_id: NodeId,
 	/// An RGB color for UI purposes
 	pub rgb: [u8; 3],
 	/// An alias, for UI purposes.
 	///
 	/// This should be sanitized before use. There is no guarantee of uniqueness.
-	pub alias: [u8; 32],
+	pub alias: NodeAlias,
 	/// List of addresses on which this node is reachable
-	pub addresses: Vec<NetAddress>,
-	pub(crate) excess_address_data: Vec<u8>,
-	pub(crate) excess_data: Vec<u8>,
+	pub addresses: Vec<SocketAddress>,
+	/// Excess address data which was signed as a part of the message which we do not (yet) understand how
+	/// to decode.
+	///
+	/// This is stored to ensure forward-compatibility as new address types are added to the lightning gossip protocol.
+	pub excess_address_data: Vec<u8>,
+	/// Excess data which was signed as a part of the message which we do not (yet) understand how
+	/// to decode.
+	///
+	/// This is stored to ensure forward-compatibility as new fields are added to the lightning gossip protocol.
+	pub excess_data: Vec<u8>,
 }
-#[derive(Clone, Debug, PartialEq, Eq)]
+#[derive(Clone, Debug, Hash, PartialEq, Eq)]
 /// A [`node_announcement`] message to be sent to or received from a peer.
 ///
 /// [`node_announcement`]: https://github.com/lightning/bolts/blob/master/07-routing-gossip.md#the-node_announcement-message
@@ -670,28 +1165,32 @@ pub struct NodeAnnouncement {
 /// The unsigned part of a [`channel_announcement`] message.
 ///
 /// [`channel_announcement`]: https://github.com/lightning/bolts/blob/master/07-routing-gossip.md#the-channel_announcement-message
-#[derive(Clone, Debug, PartialEq, Eq)]
+#[derive(Clone, Debug, Hash, PartialEq, Eq)]
 pub struct UnsignedChannelAnnouncement {
 	/// The advertised channel features
 	pub features: ChannelFeatures,
 	/// The genesis hash of the blockchain where the channel is to be opened
-	pub chain_hash: BlockHash,
+	pub chain_hash: ChainHash,
 	/// The short channel ID
 	pub short_channel_id: u64,
 	/// One of the two `node_id`s which are endpoints of this channel
-	pub node_id_1: PublicKey,
+	pub node_id_1: NodeId,
 	/// The other of the two `node_id`s which are endpoints of this channel
-	pub node_id_2: PublicKey,
+	pub node_id_2: NodeId,
 	/// The funding key for the first node
-	pub bitcoin_key_1: PublicKey,
+	pub bitcoin_key_1: NodeId,
 	/// The funding key for the second node
-	pub bitcoin_key_2: PublicKey,
-	pub(crate) excess_data: Vec<u8>,
+	pub bitcoin_key_2: NodeId,
+	/// Excess data which was signed as a part of the message which we do not (yet) understand how
+	/// to decode.
+	///
+	/// This is stored to ensure forward-compatibility as new fields are added to the lightning gossip protocol.
+	pub excess_data: Vec<u8>,
 }
 /// A [`channel_announcement`] message to be sent to or received from a peer.
 ///
 /// [`channel_announcement`]: https://github.com/lightning/bolts/blob/master/07-routing-gossip.md#the-channel_announcement-message
-#[derive(Clone, Debug, PartialEq, Eq)]
+#[derive(Clone, Debug, Hash, PartialEq, Eq)]
 pub struct ChannelAnnouncement {
 	/// Authentication of the announcement by the first public node
 	pub node_signature_1: Signature,
@@ -708,10 +1207,10 @@ pub struct ChannelAnnouncement {
 /// The unsigned part of a [`channel_update`] message.
 ///
 /// [`channel_update`]: https://github.com/lightning/bolts/blob/master/07-routing-gossip.md#the-channel_update-message
-#[derive(Clone, Debug, PartialEq, Eq)]
+#[derive(Clone, Debug, Hash, PartialEq, Eq)]
 pub struct UnsignedChannelUpdate {
 	/// The genesis hash of the blockchain where the channel is to be opened
-	pub chain_hash: BlockHash,
+	pub chain_hash: ChainHash,
 	/// The short channel ID
 	pub short_channel_id: u64,
 	/// A strictly monotonic announcement counter, with gaps allowed, specific to this channel
@@ -746,7 +1245,7 @@ pub struct UnsignedChannelUpdate {
 /// A [`channel_update`] message to be sent to or received from a peer.
 ///
 /// [`channel_update`]: https://github.com/lightning/bolts/blob/master/07-routing-gossip.md#the-channel_update-message
-#[derive(Clone, Debug, PartialEq, Eq)]
+#[derive(Clone, Debug, Hash, PartialEq, Eq)]
 pub struct ChannelUpdate {
 	/// A signature of the channel update
 	pub signature: Signature,
@@ -760,10 +1259,10 @@ pub struct ChannelUpdate {
 /// messages.
 ///
 /// [`query_channel_range`]: https://github.com/lightning/bolts/blob/master/07-routing-gossip.md#the-query_channel_range-and-reply_channel_range-messages
-#[derive(Clone, Debug, PartialEq, Eq)]
+#[derive(Clone, Debug, Hash, PartialEq, Eq)]
 pub struct QueryChannelRange {
 	/// The genesis hash of the blockchain being queried
-	pub chain_hash: BlockHash,
+	pub chain_hash: ChainHash,
 	/// The height of the first block for the channel UTXOs being queried
 	pub first_blocknum: u32,
 	/// The number of blocks to include in the query results
@@ -781,10 +1280,10 @@ pub struct QueryChannelRange {
 /// serialization and do not support `encoding_type=1` zlib serialization.
 ///
 /// [`reply_channel_range`]: https://github.com/lightning/bolts/blob/master/07-routing-gossip.md#the-query_channel_range-and-reply_channel_range-messages
-#[derive(Clone, Debug, PartialEq, Eq)]
+#[derive(Clone, Debug, Hash, PartialEq, Eq)]
 pub struct ReplyChannelRange {
 	/// The genesis hash of the blockchain being queried
-	pub chain_hash: BlockHash,
+	pub chain_hash: ChainHash,
 	/// The height of the first block in the range of the reply
 	pub first_blocknum: u32,
 	/// The number of blocks included in the range of the reply
@@ -806,10 +1305,10 @@ pub struct ReplyChannelRange {
 /// serialization and do not support `encoding_type=1` zlib serialization.
 ///
 /// [`query_short_channel_ids`]: https://github.com/lightning/bolts/blob/master/07-routing-gossip.md#the-query_short_channel_idsreply_short_channel_ids_end-messages
-#[derive(Clone, Debug, PartialEq, Eq)]
+#[derive(Clone, Debug, Hash, PartialEq, Eq)]
 pub struct QueryShortChannelIds {
 	/// The genesis hash of the blockchain being queried
-	pub chain_hash: BlockHash,
+	pub chain_hash: ChainHash,
 	/// The short_channel_ids that are being queried
 	pub short_channel_ids: Vec<u64>,
 }
@@ -820,10 +1319,10 @@ pub struct QueryShortChannelIds {
 /// a perfect view of the network.
 ///
 /// [`reply_short_channel_ids_end`]: https://github.com/lightning/bolts/blob/master/07-routing-gossip.md#the-query_short_channel_idsreply_short_channel_ids_end-messages
-#[derive(Clone, Debug, PartialEq, Eq)]
+#[derive(Clone, Debug, Hash, PartialEq, Eq)]
 pub struct ReplyShortChannelIdsEnd {
 	/// The genesis hash of the blockchain that was queried
-	pub chain_hash: BlockHash,
+	pub chain_hash: ChainHash,
 	/// Indicates if the query recipient maintains up-to-date channel
 	/// information for the `chain_hash`
 	pub full_information: bool,
@@ -834,10 +1333,10 @@ pub struct ReplyShortChannelIdsEnd {
 /// `gossip_queries` feature has been negotiated.
 ///
 /// [`gossip_timestamp_filter`]: https://github.com/lightning/bolts/blob/master/07-routing-gossip.md#the-gossip_timestamp_filter-message
-#[derive(Clone, Debug, PartialEq, Eq)]
+#[derive(Clone, Debug, Hash, PartialEq, Eq)]
 pub struct GossipTimestampFilter {
 	/// The genesis hash of the blockchain for channel and node information
-	pub chain_hash: BlockHash,
+	pub chain_hash: ChainHash,
 	/// The starting unix timestamp
 	pub first_timestamp: u32,
 	/// The range of information in seconds
@@ -853,13 +1352,18 @@ enum EncodingType {
 }
 
 /// Used to put an error message in a [`LightningError`].
-#[derive(Clone, Debug)]
+#[derive(Clone, Debug, Hash, PartialEq)]
 pub enum ErrorAction {
 	/// The peer took some action which made us think they were useless. Disconnect them.
 	DisconnectPeer {
 		/// An error message which we should make an effort to send before we disconnect.
 		msg: Option<ErrorMessage>
 	},
+	/// The peer did something incorrect. Tell them without closing any channels and disconnect them.
+	DisconnectPeerWithWarning {
+		/// A warning message which we should make an effort to send before we disconnect.
+		msg: WarningMessage,
+	},
 	/// The peer did something harmless that we weren't able to process, just log and ignore
 	// New code should *not* use this. New code must use IgnoreAndLog, below!
 	IgnoreError,
@@ -897,7 +1401,7 @@ pub struct LightningError {
 
 /// Struct used to return values from [`RevokeAndACK`] messages, containing a bunch of commitment
 /// transaction updates if they were pending.
-#[derive(Clone, Debug, PartialEq, Eq)]
+#[derive(Clone, Debug, Hash, PartialEq, Eq)]
 pub struct CommitmentUpdate {
 	/// `update_add_htlc` messages which should be sent
 	pub update_add_htlcs: Vec<UpdateAddHTLC>,
@@ -913,20 +1417,6 @@ pub struct CommitmentUpdate {
 	pub commitment_signed: CommitmentSigned,
 }
 
-/// Messages could have optional fields to use with extended features
-/// As we wish to serialize these differently from `Option<T>`s (`Options` get a tag byte, but
-/// [`OptionalField`] simply gets `Present` if there are enough bytes to read into it), we have a
-/// separate enum type for them.
-///
-/// (C-not exported) due to a free generic in `T`
-#[derive(Clone, Debug, PartialEq, Eq)]
-pub enum OptionalField<T> {
-	/// Optional field is included in message
-	Present(T),
-	/// Optional field is absent in message
-	Absent
-}
-
 /// A trait to describe an object which can receive channel messages.
 ///
 /// Messages MAY be called in parallel when they originate from different `their_node_ids`, however
@@ -935,8 +1425,12 @@ pub trait ChannelMessageHandler : MessageSendEventsProvider {
 	// Channel init:
 	/// Handle an incoming `open_channel` message from the given peer.
 	fn handle_open_channel(&self, their_node_id: &PublicKey, msg: &OpenChannel);
+	/// Handle an incoming `open_channel2` message from the given peer.
+	fn handle_open_channel_v2(&self, their_node_id: &PublicKey, msg: &OpenChannelV2);
 	/// Handle an incoming `accept_channel` message from the given peer.
 	fn handle_accept_channel(&self, their_node_id: &PublicKey, msg: &AcceptChannel);
+	/// Handle an incoming `accept_channel2` message from the given peer.
+	fn handle_accept_channel_v2(&self, their_node_id: &PublicKey, msg: &AcceptChannelV2);
 	/// Handle an incoming `funding_created` message from the given peer.
 	fn handle_funding_created(&self, their_node_id: &PublicKey, msg: &FundingCreated);
 	/// Handle an incoming `funding_signed` message from the given peer.
@@ -944,12 +1438,44 @@ pub trait ChannelMessageHandler : MessageSendEventsProvider {
 	/// Handle an incoming `channel_ready` message from the given peer.
 	fn handle_channel_ready(&self, their_node_id: &PublicKey, msg: &ChannelReady);
 
-	// Channl close:
+	// Channel close:
 	/// Handle an incoming `shutdown` message from the given peer.
 	fn handle_shutdown(&self, their_node_id: &PublicKey, msg: &Shutdown);
 	/// Handle an incoming `closing_signed` message from the given peer.
 	fn handle_closing_signed(&self, their_node_id: &PublicKey, msg: &ClosingSigned);
 
+	// Quiescence
+	/// Handle an incoming `stfu` message from the given peer.
+	fn handle_stfu(&self, their_node_id: &PublicKey, msg: &Stfu);
+
+	// Splicing
+	/// Handle an incoming `splice` message from the given peer.
+	fn handle_splice(&self, their_node_id: &PublicKey, msg: &Splice);
+	/// Handle an incoming `splice_ack` message from the given peer.
+	fn handle_splice_ack(&self, their_node_id: &PublicKey, msg: &SpliceAck);
+	/// Handle an incoming `splice_locked` message from the given peer.
+	fn handle_splice_locked(&self, their_node_id: &PublicKey, msg: &SpliceLocked);
+
+	// Interactive channel construction
+	/// Handle an incoming `tx_add_input message` from the given peer.
+	fn handle_tx_add_input(&self, their_node_id: &PublicKey, msg: &TxAddInput);
+	/// Handle an incoming `tx_add_output` message from the given peer.
+	fn handle_tx_add_output(&self, their_node_id: &PublicKey, msg: &TxAddOutput);
+	/// Handle an incoming `tx_remove_input` message from the given peer.
+	fn handle_tx_remove_input(&self, their_node_id: &PublicKey, msg: &TxRemoveInput);
+	/// Handle an incoming `tx_remove_output` message from the given peer.
+	fn handle_tx_remove_output(&self, their_node_id: &PublicKey, msg: &TxRemoveOutput);
+	/// Handle an incoming `tx_complete message` from the given peer.
+	fn handle_tx_complete(&self, their_node_id: &PublicKey, msg: &TxComplete);
+	/// Handle an incoming `tx_signatures` message from the given peer.
+	fn handle_tx_signatures(&self, their_node_id: &PublicKey, msg: &TxSignatures);
+	/// Handle an incoming `tx_init_rbf` message from the given peer.
+	fn handle_tx_init_rbf(&self, their_node_id: &PublicKey, msg: &TxInitRbf);
+	/// Handle an incoming `tx_ack_rbf` message from the given peer.
+	fn handle_tx_ack_rbf(&self, their_node_id: &PublicKey, msg: &TxAckRbf);
+	/// Handle an incoming `tx_abort message` from the given peer.
+	fn handle_tx_abort(&self, their_node_id: &PublicKey, msg: &TxAbort);
+
 	// HTLC handling:
 	/// Handle an incoming `update_add_htlc` message from the given peer.
 	fn handle_update_add_htlc(&self, their_node_id: &PublicKey, msg: &UpdateAddHTLC);
@@ -972,21 +1498,15 @@ pub trait ChannelMessageHandler : MessageSendEventsProvider {
 	fn handle_announcement_signatures(&self, their_node_id: &PublicKey, msg: &AnnouncementSignatures);
 
 	// Connection loss/reestablish:
-	/// Indicates a connection to the peer failed/an existing connection was lost. If no connection
-	/// is believed to be possible in the future (eg they're sending us messages we don't
-	/// understand or indicate they require unknown feature bits), `no_connection_possible` is set
-	/// and any outstanding channels should be failed.
-	///
-	/// Note that in some rare cases this may be called without a corresponding
-	/// [`Self::peer_connected`].
-	fn peer_disconnected(&self, their_node_id: &PublicKey, no_connection_possible: bool);
+	/// Indicates a connection to the peer failed/an existing connection was lost.
+	fn peer_disconnected(&self, their_node_id: &PublicKey);
 
 	/// Handle a peer reconnecting, possibly generating `channel_reestablish` message(s).
 	///
 	/// May return an `Err(())` if the features the peer supports are not sufficient to communicate
 	/// with us. Implementors should be somewhat conservative about doing so, however, as other
 	/// message handlers may still wish to communicate with this peer.
-	fn peer_connected(&self, their_node_id: &PublicKey, msg: &Init) -> Result<(), ()>;
+	fn peer_connected(&self, their_node_id: &PublicKey, msg: &Init, inbound: bool) -> Result<(), ()>;
 	/// Handle an incoming `channel_reestablish` message from the given peer.
 	fn handle_channel_reestablish(&self, their_node_id: &PublicKey, msg: &ChannelReestablish);
 
@@ -1009,6 +1529,12 @@ pub trait ChannelMessageHandler : MessageSendEventsProvider {
 	///
 	/// Note that this method is called before [`Self::peer_connected`].
 	fn provided_init_features(&self, their_node_id: &PublicKey) -> InitFeatures;
+
+	/// Gets the chain hashes for this `ChannelMessageHandler` indicating which chains it supports.
+	///
+	/// If it's `None`, then no particular network chain hash compatibility will be enforced when
+	/// connecting to peers.
+	fn get_chain_hashes(&self) -> Option<Vec<ChainHash>>;
 }
 
 /// A trait to describe an object which can receive routing messages.
@@ -1036,7 +1562,7 @@ pub trait RoutingMessageHandler : MessageSendEventsProvider {
 	/// the node *after* the provided pubkey and including up to one announcement immediately
 	/// higher (as defined by `<PublicKey as Ord>::cmp`) than `starting_point`.
 	/// If `None` is provided for `starting_point`, we start at the first node.
-	fn get_next_node_announcement(&self, starting_point: Option<&PublicKey>) -> Option<NodeAnnouncement>;
+	fn get_next_node_announcement(&self, starting_point: Option<&NodeId>) -> Option<NodeAnnouncement>;
 	/// Called when a connection is established with a peer. This can be used to
 	/// perform routing table synchronization using a strategy defined by the
 	/// implementor.
@@ -1044,7 +1570,7 @@ pub trait RoutingMessageHandler : MessageSendEventsProvider {
 	/// May return an `Err(())` if the features the peer supports are not sufficient to communicate
 	/// with us. Implementors should be somewhat conservative about doing so, however, as other
 	/// message handlers may still wish to communicate with this peer.
-	fn peer_connected(&self, their_node_id: &PublicKey, init: &Init) -> Result<(), ()>;
+	fn peer_connected(&self, their_node_id: &PublicKey, init: &Init, inbound: bool) -> Result<(), ()>;
 	/// Handles the reply of a query we initiated to learn about channels
 	/// for a given range of blocks. We can expect to receive one or more
 	/// replies to a single query.
@@ -1061,6 +1587,13 @@ pub trait RoutingMessageHandler : MessageSendEventsProvider {
 	/// list of `short_channel_id`s.
 	fn handle_query_short_channel_ids(&self, their_node_id: &PublicKey, msg: QueryShortChannelIds) -> Result<(), LightningError>;
 
+	// Handler queueing status:
+	/// Indicates that there are a large number of [`ChannelAnnouncement`] (or other) messages
+	/// pending some async action. While there is no guarantee of the rate of future messages, the
+	/// caller should seek to reduce the rate of new gossip messages handled, especially
+	/// [`ChannelAnnouncement`]s.
+	fn processing_queue_high(&self) -> bool;
+
 	// Handler information:
 	/// Gets the node feature flags which this handler itself supports. All available handlers are
 	/// queried similarly and their feature flags are OR'd together to form the [`NodeFeatures`]
@@ -1074,23 +1607,29 @@ pub trait RoutingMessageHandler : MessageSendEventsProvider {
 	fn provided_init_features(&self, their_node_id: &PublicKey) -> InitFeatures;
 }
 
-/// A trait to describe an object that can receive onion messages.
-pub trait OnionMessageHandler : OnionMessageProvider {
+/// A handler for received [`OnionMessage`]s and for providing generated ones to send.
+pub trait OnionMessageHandler: EventsProvider {
 	/// Handle an incoming `onion_message` message from the given peer.
 	fn handle_onion_message(&self, peer_node_id: &PublicKey, msg: &OnionMessage);
+
+	/// Returns the next pending onion message for the peer with the given node id.
+	fn next_onion_message_for_peer(&self, peer_node_id: PublicKey) -> Option<OnionMessage>;
+
 	/// Called when a connection is established with a peer. Can be used to track which peers
 	/// advertise onion message support and are online.
 	///
 	/// May return an `Err(())` if the features the peer supports are not sufficient to communicate
 	/// with us. Implementors should be somewhat conservative about doing so, however, as other
 	/// message handlers may still wish to communicate with this peer.
-	fn peer_connected(&self, their_node_id: &PublicKey, init: &Init) -> Result<(), ()>;
+	fn peer_connected(&self, their_node_id: &PublicKey, init: &Init, inbound: bool) -> Result<(), ()>;
+
 	/// Indicates a connection to the peer failed/an existing connection was lost. Allows handlers to
 	/// drop and refuse to forward onion messages to this peer.
-	///
-	/// Note that in some rare cases this may be called without a corresponding
-	/// [`Self::peer_connected`].
-	fn peer_disconnected(&self, their_node_id: &PublicKey, no_connection_possible: bool);
+	fn peer_disconnected(&self, their_node_id: &PublicKey);
+
+	/// Performs actions that should happen roughly every ten seconds after startup. Allows handlers
+	/// to drop any buffered onion messages intended for prospective peers.
+	fn timer_tick_occurred(&self);
 
 	// Handler information:
 	/// Gets the node feature flags which this handler itself supports. All available handlers are
@@ -1106,36 +1645,99 @@ pub trait OnionMessageHandler : OnionMessageProvider {
 	fn provided_init_features(&self, their_node_id: &PublicKey) -> InitFeatures;
 }
 
+#[derive(Clone)]
+#[cfg_attr(test, derive(Debug, PartialEq))]
+/// Information communicated in the onion to the recipient for multi-part tracking and proof that
+/// the payment is associated with an invoice.
+pub struct FinalOnionHopData {
+	/// When sending a multi-part payment, this secret is used to identify a payment across HTLCs.
+	/// Because it is generated by the recipient and included in the invoice, it also provides
+	/// proof to the recipient that the payment was sent by someone with the generated invoice.
+	pub payment_secret: PaymentSecret,
+	/// The intended total amount that this payment is for.
+	///
+	/// Message serialization may panic if this value is more than 21 million Bitcoin.
+	pub total_msat: u64,
+}
+
 mod fuzzy_internal_msgs {
+	use bitcoin::secp256k1::PublicKey;
+	use crate::blinded_path::payment::{PaymentConstraints, PaymentRelay};
 	use crate::prelude::*;
 	use crate::ln::{PaymentPreimage, PaymentSecret};
+	use crate::ln::features::BlindedHopFeatures;
+	use super::{FinalOnionHopData, TrampolineOnionPacket};
 
 	// These types aren't intended to be pub, but are exposed for direct fuzzing (as we deserialize
 	// them from untrusted input):
-	#[derive(Clone)]
-	pub(crate) struct FinalOnionHopData {
-		pub(crate) payment_secret: PaymentSecret,
-		/// The total value, in msat, of the payment as received by the ultimate recipient.
-		/// Message serialization may panic if this value is more than 21 million Bitcoin.
-		pub(crate) total_msat: u64,
-	}
 
-	pub(crate) enum OnionHopDataFormat {
-		NonFinalNode {
+	pub enum InboundOnionPayload {
+		Forward {
 			short_channel_id: u64,
+			/// The value, in msat, of the payment after this hop's fee is deducted.
+			amt_to_forward: u64,
+			outgoing_cltv_value: u32,
 		},
-		FinalNode {
+		Receive {
 			payment_data: Option<FinalOnionHopData>,
+			payment_metadata: Option<Vec<u8>>,
 			keysend_preimage: Option<PaymentPreimage>,
+			custom_tlvs: Vec<(u64, Vec<u8>)>,
+			sender_intended_htlc_amt_msat: u64,
+			cltv_expiry_height: u32,
+		},
+		BlindedForward {
+			short_channel_id: u64,
+			payment_relay: PaymentRelay,
+			payment_constraints: PaymentConstraints,
+			features: BlindedHopFeatures,
+			intro_node_blinding_point: Option<PublicKey>,
 		},
+		BlindedReceive {
+			sender_intended_htlc_amt_msat: u64,
+			total_msat: u64,
+			cltv_expiry_height: u32,
+			payment_secret: PaymentSecret,
+			payment_constraints: PaymentConstraints,
+			intro_node_blinding_point: Option<PublicKey>,
+			keysend_preimage: Option<PaymentPreimage>,
+		}
 	}
 
-	pub struct OnionHopData {
-		pub(crate) format: OnionHopDataFormat,
-		/// The value, in msat, of the payment after this hop's fee is deducted.
-		/// Message serialization may panic if this value is more than 21 million Bitcoin.
-		pub(crate) amt_to_forward: u64,
-		pub(crate) outgoing_cltv_value: u32,
+	pub(crate) enum OutboundOnionPayload {
+		Forward {
+			short_channel_id: u64,
+			/// The value, in msat, of the payment after this hop's fee is deducted.
+			amt_to_forward: u64,
+			outgoing_cltv_value: u32,
+		},
+		#[allow(unused)]
+		TrampolineEntrypoint {
+			amt_to_forward: u64,
+			outgoing_cltv_value: u32,
+			multipath_trampoline_data: Option<FinalOnionHopData>,
+			trampoline_packet: TrampolineOnionPacket,
+		},
+		Receive {
+			payment_data: Option<FinalOnionHopData>,
+			payment_metadata: Option<Vec<u8>>,
+			keysend_preimage: Option<PaymentPreimage>,
+			custom_tlvs: Vec<(u64, Vec<u8>)>,
+			sender_intended_htlc_amt_msat: u64,
+			cltv_expiry_height: u32,
+		},
+		BlindedForward {
+			encrypted_tlvs: Vec<u8>,
+			intro_node_blinding_point: Option<PublicKey>,
+		},
+		BlindedReceive {
+			sender_intended_htlc_amt_msat: u64,
+			total_msat: u64,
+			cltv_expiry_height: u32,
+			encrypted_tlvs: Vec<u8>,
+			intro_node_blinding_point: Option<PublicKey>, // Set if the introduction node of the blinded path is the final node
+			keysend_preimage: Option<PaymentPreimage>,
+		}
 	}
 
 	pub struct DecodedOnionErrorPacket {
@@ -1149,17 +1751,21 @@ pub use self::fuzzy_internal_msgs::*;
 #[cfg(not(fuzzing))]
 pub(crate) use self::fuzzy_internal_msgs::*;
 
-#[derive(Clone)]
-pub(crate) struct OnionPacket {
-	pub(crate) version: u8,
+/// BOLT 4 onion packet including hop data for the next peer.
+#[derive(Clone, Hash, PartialEq, Eq)]
+pub struct OnionPacket {
+	/// BOLT 4 version number.
+	pub version: u8,
 	/// In order to ensure we always return an error on onion decode in compliance with [BOLT
 	/// #4](https://github.com/lightning/bolts/blob/master/04-onion-routing.md), we have to
 	/// deserialize `OnionPacket`s contained in [`UpdateAddHTLC`] messages even if the ephemeral
 	/// public key (here) is bogus, so we hold a [`Result`] instead of a [`PublicKey`] as we'd
 	/// like.
-	pub(crate) public_key: Result<PublicKey, secp256k1::Error>,
-	pub(crate) hop_data: [u8; 20*65],
-	pub(crate) hmac: [u8; 32],
+	pub public_key: Result<PublicKey, secp256k1::Error>,
+	/// 1300 bytes encrypted payload for the next hop.
+	pub hop_data: [u8; 20*65],
+	/// HMAC to verify the integrity of hop_data.
+	pub hmac: [u8; 32],
 }
 
 impl onion_utils::Packet for OnionPacket {
@@ -1174,25 +1780,59 @@ impl onion_utils::Packet for OnionPacket {
 	}
 }
 
-impl Eq for OnionPacket { }
-impl PartialEq for OnionPacket {
-	fn eq(&self, other: &OnionPacket) -> bool {
-		for (i, j) in self.hop_data.iter().zip(other.hop_data.iter()) {
-			if i != j { return false; }
+impl fmt::Debug for OnionPacket {
+	fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+		f.write_fmt(format_args!("OnionPacket version {} with hmac {:?}", self.version, &self.hmac[..]))
+	}
+}
+
+/// BOLT 4 onion packet including hop data for the next peer.
+#[derive(Clone, Hash, PartialEq, Eq)]
+pub struct TrampolineOnionPacket {
+	/// Bolt 04 version number
+	pub version: u8,
+	/// A random sepc256k1 point, used to build the ECDH shared secret to decrypt hop_data
+	pub public_key: PublicKey,
+	/// Encrypted payload for the next hop
+	//
+	// Unlike the onion packets used for payments, Trampoline onion packets have to be shorter than
+	// 1300 bytes. The expected default is 650 bytes.
+	// TODO: if 650 ends up being the most common size, optimize this to be:
+	// enum { ThirteenHundred([u8; 650]), VarLen(Vec<u8>) }
+	pub hop_data: Vec<u8>,
+	/// HMAC to verify the integrity of hop_data
+	pub hmac: [u8; 32],
+}
+
+impl onion_utils::Packet for TrampolineOnionPacket {
+	type Data = Vec<u8>;
+	fn new(public_key: PublicKey, hop_data: Vec<u8>, hmac: [u8; 32]) -> Self {
+		Self {
+			version: 0,
+			public_key,
+			hop_data,
+			hmac,
 		}
-		self.version == other.version &&
-			self.public_key == other.public_key &&
-			self.hmac == other.hmac
 	}
 }
 
-impl fmt::Debug for OnionPacket {
+impl Writeable for TrampolineOnionPacket {
+	fn write<W: Writer>(&self, w: &mut W) -> Result<(), io::Error> {
+		self.version.write(w)?;
+		self.public_key.write(w)?;
+		w.write_all(&self.hop_data)?;
+		self.hmac.write(w)?;
+		Ok(())
+	}
+}
+
+impl Debug for TrampolineOnionPacket {
 	fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
-		f.write_fmt(format_args!("OnionPacket version {} with hmac {:?}", self.version, &self.hmac[..]))
+		f.write_fmt(format_args!("TrampolineOnionPacket version {} with hmac {:?}", self.version, &self.hmac[..]))
 	}
 }
 
-#[derive(Clone, Debug, PartialEq, Eq)]
+#[derive(Clone, Debug, Hash, PartialEq, Eq)]
 pub(crate) struct OnionErrorPacket {
 	// This really should be a constant size slice, but the spec lets these things be up to 128KB?
 	// (TODO) We limit it in decode to much lower...
@@ -1223,73 +1863,253 @@ impl From<io::Error> for DecodeError {
 	}
 }
 
-impl Writeable for OptionalField<Script> {
+impl Writeable for AcceptChannel {
 	fn write<W: Writer>(&self, w: &mut W) -> Result<(), io::Error> {
-		match *self {
-			OptionalField::Present(ref script) => {
-				// Note that Writeable for script includes the 16-bit length tag for us
-				script.write(w)?;
-			},
-			OptionalField::Absent => {}
-		}
+		self.common_fields.temporary_channel_id.write(w)?;
+		self.common_fields.dust_limit_satoshis.write(w)?;
+		self.common_fields.max_htlc_value_in_flight_msat.write(w)?;
+		self.channel_reserve_satoshis.write(w)?;
+		self.common_fields.htlc_minimum_msat.write(w)?;
+		self.common_fields.minimum_depth.write(w)?;
+		self.common_fields.to_self_delay.write(w)?;
+		self.common_fields.max_accepted_htlcs.write(w)?;
+		self.common_fields.funding_pubkey.write(w)?;
+		self.common_fields.revocation_basepoint.write(w)?;
+		self.common_fields.payment_basepoint.write(w)?;
+		self.common_fields.delayed_payment_basepoint.write(w)?;
+		self.common_fields.htlc_basepoint.write(w)?;
+		self.common_fields.first_per_commitment_point.write(w)?;
+		#[cfg(not(taproot))]
+		encode_tlv_stream!(w, {
+			(0, self.common_fields.shutdown_scriptpubkey.as_ref().map(|s| WithoutLength(s)), option), // Don't encode length twice.
+			(1, self.common_fields.channel_type, option),
+		});
+		#[cfg(taproot)]
+		encode_tlv_stream!(w, {
+			(0, self.common_fields.shutdown_scriptpubkey.as_ref().map(|s| WithoutLength(s)), option), // Don't encode length twice.
+			(1, self.common_fields.channel_type, option),
+			(4, self.next_local_nonce, option),
+		});
 		Ok(())
 	}
 }
 
-impl Readable for OptionalField<Script> {
+impl Readable for AcceptChannel {
 	fn read<R: Read>(r: &mut R) -> Result<Self, DecodeError> {
-		match <u16 as Readable>::read(r) {
-			Ok(len) => {
-				let mut buf = vec![0; len as usize];
-				r.read_exact(&mut buf)?;
-				Ok(OptionalField::Present(Script::from(buf)))
+		let temporary_channel_id: ChannelId = Readable::read(r)?;
+		let dust_limit_satoshis: u64 = Readable::read(r)?;
+		let max_htlc_value_in_flight_msat: u64 = Readable::read(r)?;
+		let channel_reserve_satoshis: u64 = Readable::read(r)?;
+		let htlc_minimum_msat: u64 = Readable::read(r)?;
+		let minimum_depth: u32 = Readable::read(r)?;
+		let to_self_delay: u16 = Readable::read(r)?;
+		let max_accepted_htlcs: u16 = Readable::read(r)?;
+		let funding_pubkey: PublicKey = Readable::read(r)?;
+		let revocation_basepoint: PublicKey = Readable::read(r)?;
+		let payment_basepoint: PublicKey = Readable::read(r)?;
+		let delayed_payment_basepoint: PublicKey = Readable::read(r)?;
+		let htlc_basepoint: PublicKey = Readable::read(r)?;
+		let first_per_commitment_point: PublicKey = Readable::read(r)?;
+
+		let mut shutdown_scriptpubkey: Option<ScriptBuf> = None;
+		let mut channel_type: Option<ChannelTypeFeatures> = None;
+		#[cfg(not(taproot))]
+		decode_tlv_stream!(r, {
+			(0, shutdown_scriptpubkey, (option, encoding: (ScriptBuf, WithoutLength))),
+			(1, channel_type, option),
+		});
+		#[cfg(taproot)]
+		let mut next_local_nonce: Option<musig2::types::PublicNonce> = None;
+		#[cfg(taproot)]
+		decode_tlv_stream!(r, {
+			(0, shutdown_scriptpubkey, (option, encoding: (ScriptBuf, WithoutLength))),
+			(1, channel_type, option),
+			(4, next_local_nonce, option),
+		});
+
+		Ok(AcceptChannel {
+			common_fields: CommonAcceptChannelFields {
+				temporary_channel_id,
+				dust_limit_satoshis,
+				max_htlc_value_in_flight_msat,
+				htlc_minimum_msat,
+				minimum_depth,
+				to_self_delay,
+				max_accepted_htlcs,
+				funding_pubkey,
+				revocation_basepoint,
+				payment_basepoint,
+				delayed_payment_basepoint,
+				htlc_basepoint,
+				first_per_commitment_point,
+				shutdown_scriptpubkey,
+				channel_type,
 			},
-			Err(DecodeError::ShortRead) => Ok(OptionalField::Absent),
-			Err(e) => Err(e)
-		}
+			channel_reserve_satoshis,
+			#[cfg(taproot)]
+			next_local_nonce,
+		})
 	}
 }
 
-impl Writeable for OptionalField<u64> {
+impl Writeable for AcceptChannelV2 {
 	fn write<W: Writer>(&self, w: &mut W) -> Result<(), io::Error> {
-		match *self {
-			OptionalField::Present(ref value) => {
-				value.write(w)?;
-			},
-			OptionalField::Absent => {}
-		}
+		self.common_fields.temporary_channel_id.write(w)?;
+		self.funding_satoshis.write(w)?;
+		self.common_fields.dust_limit_satoshis.write(w)?;
+		self.common_fields.max_htlc_value_in_flight_msat.write(w)?;
+		self.common_fields.htlc_minimum_msat.write(w)?;
+		self.common_fields.minimum_depth.write(w)?;
+		self.common_fields.to_self_delay.write(w)?;
+		self.common_fields.max_accepted_htlcs.write(w)?;
+		self.common_fields.funding_pubkey.write(w)?;
+		self.common_fields.revocation_basepoint.write(w)?;
+		self.common_fields.payment_basepoint.write(w)?;
+		self.common_fields.delayed_payment_basepoint.write(w)?;
+		self.common_fields.htlc_basepoint.write(w)?;
+		self.common_fields.first_per_commitment_point.write(w)?;
+		self.second_per_commitment_point.write(w)?;
+
+		encode_tlv_stream!(w, {
+			(0, self.common_fields.shutdown_scriptpubkey.as_ref().map(|s| WithoutLength(s)), option), // Don't encode length twice.
+			(1, self.common_fields.channel_type, option),
+			(2, self.require_confirmed_inputs, option),
+		});
 		Ok(())
 	}
 }
 
-impl Readable for OptionalField<u64> {
+impl Readable for AcceptChannelV2 {
 	fn read<R: Read>(r: &mut R) -> Result<Self, DecodeError> {
-		let value: u64 = Readable::read(r)?;
-		Ok(OptionalField::Present(value))
+		let temporary_channel_id: ChannelId = Readable::read(r)?;
+		let funding_satoshis: u64 = Readable::read(r)?;
+		let dust_limit_satoshis: u64 = Readable::read(r)?;
+		let max_htlc_value_in_flight_msat: u64 = Readable::read(r)?;
+		let htlc_minimum_msat: u64 = Readable::read(r)?;
+		let minimum_depth: u32 = Readable::read(r)?;
+		let to_self_delay: u16 = Readable::read(r)?;
+		let max_accepted_htlcs: u16 = Readable::read(r)?;
+		let funding_pubkey: PublicKey = Readable::read(r)?;
+		let revocation_basepoint: PublicKey = Readable::read(r)?;
+		let payment_basepoint: PublicKey = Readable::read(r)?;
+		let delayed_payment_basepoint: PublicKey = Readable::read(r)?;
+		let htlc_basepoint: PublicKey = Readable::read(r)?;
+		let first_per_commitment_point: PublicKey = Readable::read(r)?;
+		let second_per_commitment_point: PublicKey = Readable::read(r)?;
+
+		let mut shutdown_scriptpubkey: Option<ScriptBuf> = None;
+		let mut channel_type: Option<ChannelTypeFeatures> = None;
+		let mut require_confirmed_inputs: Option<()> = None;
+		decode_tlv_stream!(r, {
+			(0, shutdown_scriptpubkey, (option, encoding: (ScriptBuf, WithoutLength))),
+			(1, channel_type, option),
+			(2, require_confirmed_inputs, option),
+		});
+
+		Ok(AcceptChannelV2 {
+			common_fields: CommonAcceptChannelFields {
+				temporary_channel_id,
+				dust_limit_satoshis,
+				max_htlc_value_in_flight_msat,
+				htlc_minimum_msat,
+				minimum_depth,
+				to_self_delay,
+				max_accepted_htlcs,
+				funding_pubkey,
+				revocation_basepoint,
+				payment_basepoint,
+				delayed_payment_basepoint,
+				htlc_basepoint,
+				first_per_commitment_point,
+				shutdown_scriptpubkey,
+				channel_type,
+			},
+			funding_satoshis,
+			second_per_commitment_point,
+			require_confirmed_inputs,
+		})
 	}
 }
 
+impl_writeable_msg!(Stfu, {
+	channel_id,
+	initiator,
+}, {});
 
-impl_writeable_msg!(AcceptChannel, {
-	temporary_channel_id,
-	dust_limit_satoshis,
-	max_htlc_value_in_flight_msat,
-	channel_reserve_satoshis,
-	htlc_minimum_msat,
-	minimum_depth,
-	to_self_delay,
-	max_accepted_htlcs,
+impl_writeable_msg!(Splice, {
+	channel_id,
+	chain_hash,
+	relative_satoshis,
+	funding_feerate_perkw,
+	locktime,
 	funding_pubkey,
-	revocation_basepoint,
-	payment_point,
-	delayed_payment_basepoint,
-	htlc_basepoint,
-	first_per_commitment_point,
-	shutdown_scriptpubkey
+}, {});
+
+impl_writeable_msg!(SpliceAck, {
+	channel_id,
+	chain_hash,
+	relative_satoshis,
+	funding_pubkey,
+}, {});
+
+impl_writeable_msg!(SpliceLocked, {
+	channel_id,
+}, {});
+
+impl_writeable_msg!(TxAddInput, {
+	channel_id,
+	serial_id,
+	prevtx,
+	prevtx_out,
+	sequence,
+}, {});
+
+impl_writeable_msg!(TxAddOutput, {
+	channel_id,
+	serial_id,
+	sats,
+	script,
+}, {});
+
+impl_writeable_msg!(TxRemoveInput, {
+	channel_id,
+	serial_id,
+}, {});
+
+impl_writeable_msg!(TxRemoveOutput, {
+	channel_id,
+	serial_id,
+}, {});
+
+impl_writeable_msg!(TxComplete, {
+	channel_id,
+}, {});
+
+impl_writeable_msg!(TxSignatures, {
+	channel_id,
+	tx_hash,
+	witnesses,
+}, {});
+
+impl_writeable_msg!(TxInitRbf, {
+	channel_id,
+	locktime,
+	feerate_sat_per_1000_weight,
 }, {
-	(1, channel_type, option),
+	(0, funding_output_contribution, option),
 });
 
+impl_writeable_msg!(TxAckRbf, {
+	channel_id,
+}, {
+	(0, funding_output_contribution, option),
+});
+
+impl_writeable_msg!(TxAbort, {
+	channel_id,
+	data,
+}, {});
+
 impl_writeable_msg!(AnnouncementSignatures, {
 	channel_id,
 	short_channel_id,
@@ -1297,42 +2117,15 @@ impl_writeable_msg!(AnnouncementSignatures, {
 	bitcoin_signature
 }, {});
 
-impl Writeable for ChannelReestablish {
-	fn write<W: Writer>(&self, w: &mut W) -> Result<(), io::Error> {
-		self.channel_id.write(w)?;
-		self.next_local_commitment_number.write(w)?;
-		self.next_remote_commitment_number.write(w)?;
-		match self.data_loss_protect {
-			OptionalField::Present(ref data_loss_protect) => {
-				(*data_loss_protect).your_last_per_commitment_secret.write(w)?;
-				(*data_loss_protect).my_current_per_commitment_point.write(w)?;
-			},
-			OptionalField::Absent => {}
-		}
-		Ok(())
-	}
-}
-
-impl Readable for ChannelReestablish{
-	fn read<R: Read>(r: &mut R) -> Result<Self, DecodeError> {
-		Ok(Self {
-			channel_id: Readable::read(r)?,
-			next_local_commitment_number: Readable::read(r)?,
-			next_remote_commitment_number: Readable::read(r)?,
-			data_loss_protect: {
-				match <[u8; 32] as Readable>::read(r) {
-					Ok(your_last_per_commitment_secret) =>
-						OptionalField::Present(DataLossProtect {
-							your_last_per_commitment_secret,
-							my_current_per_commitment_point: Readable::read(r)?,
-						}),
-					Err(DecodeError::ShortRead) => OptionalField::Absent,
-					Err(e) => return Err(e)
-				}
-			}
-		})
-	}
-}
+impl_writeable_msg!(ChannelReestablish, {
+	channel_id,
+	next_local_commitment_number,
+	next_remote_commitment_number,
+	your_last_per_commitment_secret,
+	my_current_per_commitment_point,
+}, {
+	(0, next_funding_txid, option),
+});
 
 impl_writeable_msg!(ClosingSigned,
 	{ channel_id, fee_satoshis, signature },
@@ -1344,30 +2137,60 @@ impl_writeable!(ClosingSignedFeeRange, {
 	max_fee_satoshis
 });
 
+#[cfg(not(taproot))]
 impl_writeable_msg!(CommitmentSigned, {
 	channel_id,
 	signature,
 	htlc_signatures
 }, {});
 
+#[cfg(taproot)]
+impl_writeable_msg!(CommitmentSigned, {
+	channel_id,
+	signature,
+	htlc_signatures
+}, {
+	(2, partial_signature_with_nonce, option)
+});
+
 impl_writeable!(DecodedOnionErrorPacket, {
 	hmac,
 	failuremsg,
 	pad
 });
 
+#[cfg(not(taproot))]
 impl_writeable_msg!(FundingCreated, {
 	temporary_channel_id,
 	funding_txid,
 	funding_output_index,
 	signature
 }, {});
+#[cfg(taproot)]
+impl_writeable_msg!(FundingCreated, {
+	temporary_channel_id,
+	funding_txid,
+	funding_output_index,
+	signature
+}, {
+	(2, partial_signature_with_nonce, option),
+	(4, next_local_nonce, option)
+});
 
+#[cfg(not(taproot))]
 impl_writeable_msg!(FundingSigned, {
 	channel_id,
 	signature
 }, {});
 
+#[cfg(taproot)]
+impl_writeable_msg!(FundingSigned, {
+	channel_id,
+	signature
+}, {
+	(2, partial_signature_with_nonce, option)
+});
+
 impl_writeable_msg!(ChannelReady, {
 	channel_id,
 	next_per_commitment_point,
@@ -1382,7 +2205,8 @@ impl Writeable for Init {
 		self.features.write_up_to_13(w)?;
 		self.features.write(w)?;
 		encode_tlv_stream!(w, {
-			(3, self.remote_network_address, option)
+			(1, self.networks.as_ref().map(|n| WithoutLength(n)), option),
+			(3, self.remote_network_address, option),
 		});
 		Ok(())
 	}
@@ -1392,47 +2216,207 @@ impl Readable for Init {
 	fn read<R: Read>(r: &mut R) -> Result<Self, DecodeError> {
 		let global_features: InitFeatures = Readable::read(r)?;
 		let features: InitFeatures = Readable::read(r)?;
-		let mut remote_network_address: Option<NetAddress> = None;
+		let mut remote_network_address: Option<SocketAddress> = None;
+		let mut networks: Option<WithoutLength<Vec<ChainHash>>> = None;
+		decode_tlv_stream!(r, {
+			(1, networks, option),
+			(3, remote_network_address, option)
+		});
+		Ok(Init {
+			features: features | global_features,
+			networks: networks.map(|n| n.0),
+			remote_network_address,
+		})
+	}
+}
+
+impl Writeable for OpenChannel {
+	fn write<W: Writer>(&self, w: &mut W) -> Result<(), io::Error> {
+		self.common_fields.chain_hash.write(w)?;
+		self.common_fields.temporary_channel_id.write(w)?;
+		self.common_fields.funding_satoshis.write(w)?;
+		self.push_msat.write(w)?;
+		self.common_fields.dust_limit_satoshis.write(w)?;
+		self.common_fields.max_htlc_value_in_flight_msat.write(w)?;
+		self.channel_reserve_satoshis.write(w)?;
+		self.common_fields.htlc_minimum_msat.write(w)?;
+		self.common_fields.commitment_feerate_sat_per_1000_weight.write(w)?;
+		self.common_fields.to_self_delay.write(w)?;
+		self.common_fields.max_accepted_htlcs.write(w)?;
+		self.common_fields.funding_pubkey.write(w)?;
+		self.common_fields.revocation_basepoint.write(w)?;
+		self.common_fields.payment_basepoint.write(w)?;
+		self.common_fields.delayed_payment_basepoint.write(w)?;
+		self.common_fields.htlc_basepoint.write(w)?;
+		self.common_fields.first_per_commitment_point.write(w)?;
+		self.common_fields.channel_flags.write(w)?;
+		encode_tlv_stream!(w, {
+			(0, self.common_fields.shutdown_scriptpubkey.as_ref().map(|s| WithoutLength(s)), option), // Don't encode length twice.
+			(1, self.common_fields.channel_type, option),
+		});
+		Ok(())
+	}
+}
+
+impl Readable for OpenChannel {
+	fn read<R: Read>(r: &mut R) -> Result<Self, DecodeError> {
+		let chain_hash: ChainHash = Readable::read(r)?;
+		let temporary_channel_id: ChannelId = Readable::read(r)?;
+		let funding_satoshis: u64 = Readable::read(r)?;
+		let push_msat: u64 = Readable::read(r)?;
+		let dust_limit_satoshis: u64 = Readable::read(r)?;
+		let max_htlc_value_in_flight_msat: u64 = Readable::read(r)?;
+		let channel_reserve_satoshis: u64 = Readable::read(r)?;
+		let htlc_minimum_msat: u64 = Readable::read(r)?;
+		let commitment_feerate_sat_per_1000_weight: u32 = Readable::read(r)?;
+		let to_self_delay: u16 = Readable::read(r)?;
+		let max_accepted_htlcs: u16 = Readable::read(r)?;
+		let funding_pubkey: PublicKey = Readable::read(r)?;
+		let revocation_basepoint: PublicKey = Readable::read(r)?;
+		let payment_basepoint: PublicKey = Readable::read(r)?;
+		let delayed_payment_basepoint: PublicKey = Readable::read(r)?;
+		let htlc_basepoint: PublicKey = Readable::read(r)?;
+		let first_per_commitment_point: PublicKey = Readable::read(r)?;
+		let channel_flags: u8 = Readable::read(r)?;
+
+		let mut shutdown_scriptpubkey: Option<ScriptBuf> = None;
+		let mut channel_type: Option<ChannelTypeFeatures> = None;
+		decode_tlv_stream!(r, {
+			(0, shutdown_scriptpubkey, (option, encoding: (ScriptBuf, WithoutLength))),
+			(1, channel_type, option),
+		});
+		Ok(OpenChannel {
+			common_fields: CommonOpenChannelFields {
+				chain_hash,
+				temporary_channel_id,
+				funding_satoshis,
+				dust_limit_satoshis,
+				max_htlc_value_in_flight_msat,
+				htlc_minimum_msat,
+				commitment_feerate_sat_per_1000_weight,
+				to_self_delay,
+				max_accepted_htlcs,
+				funding_pubkey,
+				revocation_basepoint,
+				payment_basepoint,
+				delayed_payment_basepoint,
+				htlc_basepoint,
+				first_per_commitment_point,
+				channel_flags,
+				shutdown_scriptpubkey,
+				channel_type,
+			},
+			push_msat,
+			channel_reserve_satoshis,
+		})
+	}
+}
+
+impl Writeable for OpenChannelV2 {
+	fn write<W: Writer>(&self, w: &mut W) -> Result<(), io::Error> {
+		self.common_fields.chain_hash.write(w)?;
+		self.common_fields.temporary_channel_id.write(w)?;
+		self.funding_feerate_sat_per_1000_weight.write(w)?;
+		self.common_fields.commitment_feerate_sat_per_1000_weight.write(w)?;
+		self.common_fields.funding_satoshis.write(w)?;
+		self.common_fields.dust_limit_satoshis.write(w)?;
+		self.common_fields.max_htlc_value_in_flight_msat.write(w)?;
+		self.common_fields.htlc_minimum_msat.write(w)?;
+		self.common_fields.to_self_delay.write(w)?;
+		self.common_fields.max_accepted_htlcs.write(w)?;
+		self.locktime.write(w)?;
+		self.common_fields.funding_pubkey.write(w)?;
+		self.common_fields.revocation_basepoint.write(w)?;
+		self.common_fields.payment_basepoint.write(w)?;
+		self.common_fields.delayed_payment_basepoint.write(w)?;
+		self.common_fields.htlc_basepoint.write(w)?;
+		self.common_fields.first_per_commitment_point.write(w)?;
+		self.second_per_commitment_point.write(w)?;
+		self.common_fields.channel_flags.write(w)?;
+		encode_tlv_stream!(w, {
+			(0, self.common_fields.shutdown_scriptpubkey.as_ref().map(|s| WithoutLength(s)), option), // Don't encode length twice.
+			(1, self.common_fields.channel_type, option),
+			(2, self.require_confirmed_inputs, option),
+		});
+		Ok(())
+	}
+}
+
+impl Readable for OpenChannelV2 {
+	fn read<R: Read>(r: &mut R) -> Result<Self, DecodeError> {
+		let chain_hash: ChainHash = Readable::read(r)?;
+		let temporary_channel_id: ChannelId = Readable::read(r)?;
+		let funding_feerate_sat_per_1000_weight: u32 = Readable::read(r)?;
+		let commitment_feerate_sat_per_1000_weight: u32 = Readable::read(r)?;
+		let funding_satoshis: u64 = Readable::read(r)?;
+		let dust_limit_satoshis: u64 = Readable::read(r)?;
+		let max_htlc_value_in_flight_msat: u64 = Readable::read(r)?;
+		let htlc_minimum_msat: u64 = Readable::read(r)?;
+		let to_self_delay: u16 = Readable::read(r)?;
+		let max_accepted_htlcs: u16 = Readable::read(r)?;
+		let locktime: u32 = Readable::read(r)?;
+		let funding_pubkey: PublicKey = Readable::read(r)?;
+		let revocation_basepoint: PublicKey = Readable::read(r)?;
+		let payment_basepoint: PublicKey = Readable::read(r)?;
+		let delayed_payment_basepoint: PublicKey = Readable::read(r)?;
+		let htlc_basepoint: PublicKey = Readable::read(r)?;
+		let first_per_commitment_point: PublicKey = Readable::read(r)?;
+		let second_per_commitment_point: PublicKey = Readable::read(r)?;
+		let channel_flags: u8 = Readable::read(r)?;
+
+		let mut shutdown_scriptpubkey: Option<ScriptBuf> = None;
+		let mut channel_type: Option<ChannelTypeFeatures> = None;
+		let mut require_confirmed_inputs: Option<()> = None;
 		decode_tlv_stream!(r, {
-			(3, remote_network_address, option)
+			(0, shutdown_scriptpubkey, (option, encoding: (ScriptBuf, WithoutLength))),
+			(1, channel_type, option),
+			(2, require_confirmed_inputs, option),
 		});
-		Ok(Init {
-			features: features.or(global_features),
-			remote_network_address,
+		Ok(OpenChannelV2 {
+			common_fields: CommonOpenChannelFields {
+				chain_hash,
+				temporary_channel_id,
+				funding_satoshis,
+				dust_limit_satoshis,
+				max_htlc_value_in_flight_msat,
+				htlc_minimum_msat,
+				commitment_feerate_sat_per_1000_weight,
+				to_self_delay,
+				max_accepted_htlcs,
+				funding_pubkey,
+				revocation_basepoint,
+				payment_basepoint,
+				delayed_payment_basepoint,
+				htlc_basepoint,
+				first_per_commitment_point,
+				channel_flags,
+				shutdown_scriptpubkey,
+				channel_type,
+			},
+			funding_feerate_sat_per_1000_weight,
+			locktime,
+			second_per_commitment_point,
+			require_confirmed_inputs,
 		})
 	}
 }
 
-impl_writeable_msg!(OpenChannel, {
-	chain_hash,
-	temporary_channel_id,
-	funding_satoshis,
-	push_msat,
-	dust_limit_satoshis,
-	max_htlc_value_in_flight_msat,
-	channel_reserve_satoshis,
-	htlc_minimum_msat,
-	feerate_per_kw,
-	to_self_delay,
-	max_accepted_htlcs,
-	funding_pubkey,
-	revocation_basepoint,
-	payment_point,
-	delayed_payment_basepoint,
-	htlc_basepoint,
-	first_per_commitment_point,
-	channel_flags,
-	shutdown_scriptpubkey
-}, {
-	(1, channel_type, option),
-});
-
+#[cfg(not(taproot))]
 impl_writeable_msg!(RevokeAndACK, {
 	channel_id,
 	per_commitment_secret,
 	next_per_commitment_point
 }, {});
 
+#[cfg(taproot)]
+impl_writeable_msg!(RevokeAndACK, {
+	channel_id,
+	per_commitment_secret,
+	next_per_commitment_point
+}, {
+	(4, next_local_nonce, option)
+});
+
 impl_writeable_msg!(Shutdown, {
 	channel_id,
 	scriptpubkey
@@ -1506,15 +2490,19 @@ impl_writeable_msg!(UpdateAddHTLC, {
 	amount_msat,
 	payment_hash,
 	cltv_expiry,
-	onion_routing_packet
-}, {});
+	onion_routing_packet,
+}, {
+	(0, blinding_point, option),
+	(65537, skimmed_fee_msat, option)
+});
 
 impl Readable for OnionMessage {
 	fn read<R: Read>(r: &mut R) -> Result<Self, DecodeError> {
 		let blinding_point: PublicKey = Readable::read(r)?;
 		let len: u16 = Readable::read(r)?;
 		let mut packet_reader = FixedLengthReader::new(r, len as u64);
-		let onion_routing_packet: onion_message::Packet = <onion_message::Packet as LengthReadable>::read(&mut packet_reader)?;
+		let onion_routing_packet: onion_message::packet::Packet =
+			<onion_message::packet::Packet as LengthReadable>::read(&mut packet_reader)?;
 		Ok(Self {
 			blinding_point,
 			onion_routing_packet,
@@ -1547,21 +2535,60 @@ impl Readable for FinalOnionHopData {
 	}
 }
 
-impl Writeable for OnionHopData {
+impl Writeable for OutboundOnionPayload {
 	fn write<W: Writer>(&self, w: &mut W) -> Result<(), io::Error> {
-		match self.format {
-			OnionHopDataFormat::NonFinalNode { short_channel_id } => {
+		match self {
+			Self::Forward { short_channel_id, amt_to_forward, outgoing_cltv_value } => {
 				_encode_varint_length_prefixed_tlv!(w, {
-					(2, HighZeroBytesDroppedBigSize(self.amt_to_forward), required),
-					(4, HighZeroBytesDroppedBigSize(self.outgoing_cltv_value), required),
+					(2, HighZeroBytesDroppedBigSize(*amt_to_forward), required),
+					(4, HighZeroBytesDroppedBigSize(*outgoing_cltv_value), required),
 					(6, short_channel_id, required)
 				});
 			},
-			OnionHopDataFormat::FinalNode { ref payment_data, ref keysend_preimage } => {
+			Self::TrampolineEntrypoint {
+				amt_to_forward, outgoing_cltv_value, ref multipath_trampoline_data,
+				ref trampoline_packet
+			} => {
+				_encode_varint_length_prefixed_tlv!(w, {
+					(2, HighZeroBytesDroppedBigSize(*amt_to_forward), required),
+					(4, HighZeroBytesDroppedBigSize(*outgoing_cltv_value), required),
+					(8, multipath_trampoline_data, option),
+					(20, trampoline_packet, required)
+				});
+			},
+			Self::Receive {
+				ref payment_data, ref payment_metadata, ref keysend_preimage, sender_intended_htlc_amt_msat,
+				cltv_expiry_height, ref custom_tlvs,
+			} => {
+				// We need to update [`ln::outbound_payment::RecipientOnionFields::with_custom_tlvs`]
+				// to reject any reserved types in the experimental range if new ones are ever
+				// standardized.
+				let keysend_tlv = keysend_preimage.map(|preimage| (5482373484, preimage.encode()));
+				let mut custom_tlvs: Vec<&(u64, Vec<u8>)> = custom_tlvs.iter().chain(keysend_tlv.iter()).collect();
+				custom_tlvs.sort_unstable_by_key(|(typ, _)| *typ);
 				_encode_varint_length_prefixed_tlv!(w, {
-					(2, HighZeroBytesDroppedBigSize(self.amt_to_forward), required),
-					(4, HighZeroBytesDroppedBigSize(self.outgoing_cltv_value), required),
+					(2, HighZeroBytesDroppedBigSize(*sender_intended_htlc_amt_msat), required),
+					(4, HighZeroBytesDroppedBigSize(*cltv_expiry_height), required),
 					(8, payment_data, option),
+					(16, payment_metadata.as_ref().map(|m| WithoutLength(m)), option)
+				}, custom_tlvs.iter());
+			},
+			Self::BlindedForward { encrypted_tlvs, intro_node_blinding_point } => {
+				_encode_varint_length_prefixed_tlv!(w, {
+					(10, *encrypted_tlvs, required_vec),
+					(12, intro_node_blinding_point, option)
+				});
+			},
+			Self::BlindedReceive {
+				sender_intended_htlc_amt_msat, total_msat, cltv_expiry_height, encrypted_tlvs,
+				intro_node_blinding_point, keysend_preimage,
+			} => {
+				_encode_varint_length_prefixed_tlv!(w, {
+					(2, HighZeroBytesDroppedBigSize(*sender_intended_htlc_amt_msat), required),
+					(4, HighZeroBytesDroppedBigSize(*cltv_expiry_height), required),
+					(10, *encrypted_tlvs, required_vec),
+					(12, intro_node_blinding_point, option),
+					(18, HighZeroBytesDroppedBigSize(*total_msat), required),
 					(5482373484, keysend_preimage, option)
 				});
 			},
@@ -1570,55 +2597,116 @@ impl Writeable for OnionHopData {
 	}
 }
 
-impl Readable for OnionHopData {
-	fn read<R: Read>(r: &mut R) -> Result<Self, DecodeError> {
-		let mut amt = HighZeroBytesDroppedBigSize(0u64);
-		let mut cltv_value = HighZeroBytesDroppedBigSize(0u32);
+impl<NS: Deref> ReadableArgs<(Option<PublicKey>, &NS)> for InboundOnionPayload where NS::Target: NodeSigner {
+	fn read<R: Read>(r: &mut R, args: (Option<PublicKey>, &NS)) -> Result<Self, DecodeError> {
+		let (update_add_blinding_point, node_signer) = args;
+
+		let mut amt = None;
+		let mut cltv_value = None;
 		let mut short_id: Option<u64> = None;
 		let mut payment_data: Option<FinalOnionHopData> = None;
+		let mut encrypted_tlvs_opt: Option<WithoutLength<Vec<u8>>> = None;
+		let mut intro_node_blinding_point = None;
+		let mut payment_metadata: Option<WithoutLength<Vec<u8>>> = None;
+		let mut total_msat = None;
 		let mut keysend_preimage: Option<PaymentPreimage> = None;
-		read_tlv_fields!(r, {
-			(2, amt, required),
-			(4, cltv_value, required),
+		let mut custom_tlvs = Vec::new();
+
+		let tlv_len = BigSize::read(r)?;
+		let rd = FixedLengthReader::new(r, tlv_len.0);
+		decode_tlv_stream_with_custom_tlv_decode!(rd, {
+			(2, amt, (option, encoding: (u64, HighZeroBytesDroppedBigSize))),
+			(4, cltv_value, (option, encoding: (u32, HighZeroBytesDroppedBigSize))),
 			(6, short_id, option),
 			(8, payment_data, option),
+			(10, encrypted_tlvs_opt, option),
+			(12, intro_node_blinding_point, option),
+			(16, payment_metadata, option),
+			(18, total_msat, (option, encoding: (u64, HighZeroBytesDroppedBigSize))),
 			// See https://github.com/lightning/blips/blob/master/blip-0003.md
 			(5482373484, keysend_preimage, option)
+		}, |msg_type: u64, msg_reader: &mut FixedLengthReader<_>| -> Result<bool, DecodeError> {
+			if msg_type < 1 << 16 { return Ok(false) }
+			let mut value = Vec::new();
+			msg_reader.read_to_end(&mut value)?;
+			custom_tlvs.push((msg_type, value));
+			Ok(true)
 		});
 
-		let format = if let Some(short_channel_id) = short_id {
-			if payment_data.is_some() { return Err(DecodeError::InvalidValue); }
-			OnionHopDataFormat::NonFinalNode {
-				short_channel_id,
+		if amt.unwrap_or(0) > MAX_VALUE_MSAT { return Err(DecodeError::InvalidValue) }
+		if intro_node_blinding_point.is_some() && update_add_blinding_point.is_some() {
+			return Err(DecodeError::InvalidValue)
+		}
+
+		if let Some(blinding_point) = intro_node_blinding_point.or(update_add_blinding_point) {
+			if short_id.is_some() || payment_data.is_some() || payment_metadata.is_some() {
+				return Err(DecodeError::InvalidValue)
+			}
+			let enc_tlvs = encrypted_tlvs_opt.ok_or(DecodeError::InvalidValue)?.0;
+			let enc_tlvs_ss = node_signer.ecdh(Recipient::Node, &blinding_point, None)
+				.map_err(|_| DecodeError::InvalidValue)?;
+			let rho = onion_utils::gen_rho_from_shared_secret(&enc_tlvs_ss.secret_bytes());
+			let mut s = Cursor::new(&enc_tlvs);
+			let mut reader = FixedLengthReader::new(&mut s, enc_tlvs.len() as u64);
+			match ChaChaPolyReadAdapter::read(&mut reader, rho)? {
+				ChaChaPolyReadAdapter { readable: BlindedPaymentTlvs::Forward(ForwardTlvs {
+					short_channel_id, payment_relay, payment_constraints, features
+				})} => {
+					if amt.is_some() || cltv_value.is_some() || total_msat.is_some() ||
+						keysend_preimage.is_some()
+					{
+						return Err(DecodeError::InvalidValue)
+					}
+					Ok(Self::BlindedForward {
+						short_channel_id,
+						payment_relay,
+						payment_constraints,
+						features,
+						intro_node_blinding_point,
+					})
+				},
+				ChaChaPolyReadAdapter { readable: BlindedPaymentTlvs::Receive(ReceiveTlvs {
+					payment_secret, payment_constraints
+				})} => {
+					if total_msat.unwrap_or(0) > MAX_VALUE_MSAT { return Err(DecodeError::InvalidValue) }
+					Ok(Self::BlindedReceive {
+						sender_intended_htlc_amt_msat: amt.ok_or(DecodeError::InvalidValue)?,
+						total_msat: total_msat.ok_or(DecodeError::InvalidValue)?,
+						cltv_expiry_height: cltv_value.ok_or(DecodeError::InvalidValue)?,
+						payment_secret,
+						payment_constraints,
+						intro_node_blinding_point,
+						keysend_preimage,
+					})
+				},
 			}
+		} else if let Some(short_channel_id) = short_id {
+			if payment_data.is_some() || payment_metadata.is_some() || encrypted_tlvs_opt.is_some() ||
+				total_msat.is_some()
+			{ return Err(DecodeError::InvalidValue) }
+			Ok(Self::Forward {
+				short_channel_id,
+				amt_to_forward: amt.ok_or(DecodeError::InvalidValue)?,
+				outgoing_cltv_value: cltv_value.ok_or(DecodeError::InvalidValue)?,
+			})
 		} else {
-			if let &Some(ref data) = &payment_data {
+			if encrypted_tlvs_opt.is_some() || total_msat.is_some() {
+				return Err(DecodeError::InvalidValue)
+			}
+			if let Some(data) = &payment_data {
 				if data.total_msat > MAX_VALUE_MSAT {
 					return Err(DecodeError::InvalidValue);
 				}
 			}
-			OnionHopDataFormat::FinalNode {
+			Ok(Self::Receive {
 				payment_data,
+				payment_metadata: payment_metadata.map(|w| w.0),
 				keysend_preimage,
-			}
-		};
-
-		if amt.0 > MAX_VALUE_MSAT {
-			return Err(DecodeError::InvalidValue);
+				sender_intended_htlc_amt_msat: amt.ok_or(DecodeError::InvalidValue)?,
+				cltv_expiry_height: cltv_value.ok_or(DecodeError::InvalidValue)?,
+				custom_tlvs,
+			})
 		}
-		Ok(OnionHopData {
-			format,
-			amt_to_forward: amt.0,
-			outgoing_cltv_value: cltv_value.0,
-		})
-	}
-}
-
-// ReadableArgs because we need onion_utils::decode_next_hop to accommodate payment packets and
-// onion message packets.
-impl ReadableArgs<()> for OnionHopData {
-	fn read<R: Read>(r: &mut R, _arg: ()) -> Result<Self, DecodeError> {
-		<Self as Readable>::read(r)
 	}
 }
 
@@ -1824,13 +2912,13 @@ impl Readable for UnsignedNodeAnnouncement {
 	fn read<R: Read>(r: &mut R) -> Result<Self, DecodeError> {
 		let features: NodeFeatures = Readable::read(r)?;
 		let timestamp: u32 = Readable::read(r)?;
-		let node_id: PublicKey = Readable::read(r)?;
+		let node_id: NodeId = Readable::read(r)?;
 		let mut rgb = [0; 3];
 		r.read_exact(&mut rgb)?;
-		let alias: [u8; 32] = Readable::read(r)?;
+		let alias: NodeAlias = Readable::read(r)?;
 
 		let addr_len: u16 = Readable::read(r)?;
-		let mut addresses: Vec<NetAddress> = Vec::new();
+		let mut addresses: Vec<SocketAddress> = Vec::new();
 		let mut addr_readpos = 0;
 		let mut excess = false;
 		let mut excess_byte = 0;
@@ -1889,7 +2977,7 @@ impl_writeable!(NodeAnnouncement, {
 
 impl Readable for QueryShortChannelIds {
 	fn read<R: Read>(r: &mut R) -> Result<Self, DecodeError> {
-		let chain_hash: BlockHash = Readable::read(r)?;
+		let chain_hash: ChainHash = Readable::read(r)?;
 
 		let encoding_len: u16 = Readable::read(r)?;
 		let encoding_type: u8 = Readable::read(r)?;
@@ -1965,7 +3053,7 @@ impl_writeable_msg!(QueryChannelRange, {
 
 impl Readable for ReplyChannelRange {
 	fn read<R: Read>(r: &mut R) -> Result<Self, DecodeError> {
-		let chain_hash: BlockHash = Readable::read(r)?;
+		let chain_hash: ChainHash = Readable::read(r)?;
 		let first_blocknum: u32 = Readable::read(r)?;
 		let number_of_blocks: u32 = Readable::read(r)?;
 		let sync_complete: bool = Readable::read(r)?;
@@ -2029,68 +3117,107 @@ impl_writeable_msg!(GossipTimestampFilter, {
 
 #[cfg(test)]
 mod tests {
-	use hex;
+	use std::convert::TryFrom;
+	use bitcoin::{Transaction, TxIn, ScriptBuf, Sequence, Witness, TxOut};
+	use hex::DisplayHex;
 	use crate::ln::{PaymentPreimage, PaymentHash, PaymentSecret};
+	use crate::ln::ChannelId;
 	use crate::ln::features::{ChannelFeatures, ChannelTypeFeatures, InitFeatures, NodeFeatures};
-	use crate::ln::msgs;
-	use crate::ln::msgs::{FinalOnionHopData, OptionalField, OnionErrorPacket, OnionHopDataFormat};
-	use crate::util::ser::{Writeable, Readable, Hostname};
+	use crate::ln::msgs::{self, FinalOnionHopData, OnionErrorPacket, CommonOpenChannelFields, CommonAcceptChannelFields, TrampolineOnionPacket};
+	use crate::ln::msgs::SocketAddress;
+	use crate::routing::gossip::{NodeAlias, NodeId};
+	use crate::util::ser::{BigSize, Hostname, Readable, ReadableArgs, TransactionU16LenLimited, Writeable};
+	use crate::util::test_utils;
 
 	use bitcoin::hashes::hex::FromHex;
-	use bitcoin::util::address::Address;
+	use bitcoin::address::Address;
 	use bitcoin::network::constants::Network;
+	use bitcoin::blockdata::constants::ChainHash;
 	use bitcoin::blockdata::script::Builder;
 	use bitcoin::blockdata::opcodes;
-	use bitcoin::hash_types::{Txid, BlockHash};
+	use bitcoin::hash_types::Txid;
+	use bitcoin::locktime::absolute::LockTime;
 
 	use bitcoin::secp256k1::{PublicKey,SecretKey};
 	use bitcoin::secp256k1::{Secp256k1, Message};
 
 	use crate::io::{self, Cursor};
 	use crate::prelude::*;
-	use core::convert::TryFrom;
+	use core::str::FromStr;
+	use crate::chain::transaction::OutPoint;
+
+	#[cfg(feature = "std")]
+	use std::net::{Ipv4Addr, Ipv6Addr, SocketAddr, SocketAddrV4, SocketAddrV6, ToSocketAddrs};
+	#[cfg(feature = "std")]
+	use crate::ln::msgs::SocketAddressParseError;
 
 	#[test]
-	fn encoding_channel_reestablish_no_secret() {
+	fn encoding_channel_reestablish() {
+		let public_key = {
+			let secp_ctx = Secp256k1::new();
+			PublicKey::from_secret_key(&secp_ctx, &SecretKey::from_slice(&<Vec<u8>>::from_hex("0101010101010101010101010101010101010101010101010101010101010101").unwrap()[..]).unwrap())
+		};
+
 		let cr = msgs::ChannelReestablish {
-			channel_id: [4, 0, 0, 0, 0, 0, 0, 0, 5, 0, 0, 0, 0, 0, 0, 0, 6, 0, 0, 0, 0, 0, 0, 0, 7, 0, 0, 0, 0, 0, 0, 0],
+			channel_id: ChannelId::from_bytes([4, 0, 0, 0, 0, 0, 0, 0, 5, 0, 0, 0, 0, 0, 0, 0, 6, 0, 0, 0, 0, 0, 0, 0, 7, 0, 0, 0, 0, 0, 0, 0]),
 			next_local_commitment_number: 3,
 			next_remote_commitment_number: 4,
-			data_loss_protect: OptionalField::Absent,
+			your_last_per_commitment_secret: [9;32],
+			my_current_per_commitment_point: public_key,
+			next_funding_txid: None,
 		};
 
 		let encoded_value = cr.encode();
 		assert_eq!(
 			encoded_value,
-			vec![4, 0, 0, 0, 0, 0, 0, 0, 5, 0, 0, 0, 0, 0, 0, 0, 6, 0, 0, 0, 0, 0, 0, 0, 7, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 0, 0, 0, 0, 0, 0, 0, 4]
+			vec![
+				4, 0, 0, 0, 0, 0, 0, 0, 5, 0, 0, 0, 0, 0, 0, 0, 6, 0, 0, 0, 0, 0, 0, 0, 7, 0, 0, 0, 0, 0, 0, 0, // channel_id
+				0, 0, 0, 0, 0, 0, 0, 3, // next_local_commitment_number
+				0, 0, 0, 0, 0, 0, 0, 4, // next_remote_commitment_number
+				9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, // your_last_per_commitment_secret
+				3, 27, 132, 197, 86, 123, 18, 100, 64, 153, 93, 62, 213, 170, 186, 5, 101, 215, 30, 24, 52, 96, 72, 25, 255, 156, 23, 245, 233, 213, 221, 7, 143, // my_current_per_commitment_point
+			]
 		);
 	}
 
 	#[test]
-	fn encoding_channel_reestablish_with_secret() {
+	fn encoding_channel_reestablish_with_next_funding_txid() {
 		let public_key = {
 			let secp_ctx = Secp256k1::new();
-			PublicKey::from_secret_key(&secp_ctx, &SecretKey::from_slice(&hex::decode("0101010101010101010101010101010101010101010101010101010101010101").unwrap()[..]).unwrap())
+			PublicKey::from_secret_key(&secp_ctx, &SecretKey::from_slice(&<Vec<u8>>::from_hex("0101010101010101010101010101010101010101010101010101010101010101").unwrap()[..]).unwrap())
 		};
 
 		let cr = msgs::ChannelReestablish {
-			channel_id: [4, 0, 0, 0, 0, 0, 0, 0, 5, 0, 0, 0, 0, 0, 0, 0, 6, 0, 0, 0, 0, 0, 0, 0, 7, 0, 0, 0, 0, 0, 0, 0],
+			channel_id: ChannelId::from_bytes([4, 0, 0, 0, 0, 0, 0, 0, 5, 0, 0, 0, 0, 0, 0, 0, 6, 0, 0, 0, 0, 0, 0, 0, 7, 0, 0, 0, 0, 0, 0, 0]),
 			next_local_commitment_number: 3,
 			next_remote_commitment_number: 4,
-			data_loss_protect: OptionalField::Present(msgs::DataLossProtect { your_last_per_commitment_secret: [9;32], my_current_per_commitment_point: public_key}),
+			your_last_per_commitment_secret: [9;32],
+			my_current_per_commitment_point: public_key,
+			next_funding_txid: Some(Txid::from_raw_hash(bitcoin::hashes::Hash::from_slice(&[
+				48, 167, 250, 69, 152, 48, 103, 172, 164, 99, 59, 19, 23, 11, 92, 84, 15, 80, 4, 12, 98, 82, 75, 31, 201, 11, 91, 23, 98, 23, 53, 124,
+			]).unwrap())),
 		};
 
 		let encoded_value = cr.encode();
 		assert_eq!(
 			encoded_value,
-			vec![4, 0, 0, 0, 0, 0, 0, 0, 5, 0, 0, 0, 0, 0, 0, 0, 6, 0, 0, 0, 0, 0, 0, 0, 7, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 0, 0, 0, 0, 0, 0, 0, 4, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 3, 27, 132, 197, 86, 123, 18, 100, 64, 153, 93, 62, 213, 170, 186, 5, 101, 215, 30, 24, 52, 96, 72, 25, 255, 156, 23, 245, 233, 213, 221, 7, 143]
+			vec![
+				4, 0, 0, 0, 0, 0, 0, 0, 5, 0, 0, 0, 0, 0, 0, 0, 6, 0, 0, 0, 0, 0, 0, 0, 7, 0, 0, 0, 0, 0, 0, 0, // channel_id
+				0, 0, 0, 0, 0, 0, 0, 3, // next_local_commitment_number
+				0, 0, 0, 0, 0, 0, 0, 4, // next_remote_commitment_number
+				9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, // your_last_per_commitment_secret
+				3, 27, 132, 197, 86, 123, 18, 100, 64, 153, 93, 62, 213, 170, 186, 5, 101, 215, 30, 24, 52, 96, 72, 25, 255, 156, 23, 245, 233, 213, 221, 7, 143, // my_current_per_commitment_point
+				0, // Type (next_funding_txid)
+				32, // Length
+				48, 167, 250, 69, 152, 48, 103, 172, 164, 99, 59, 19, 23, 11, 92, 84, 15, 80, 4, 12, 98, 82, 75, 31, 201, 11, 91, 23, 98, 23, 53, 124, // Value
+			]
 		);
 	}
 
 	macro_rules! get_keys_from {
 		($slice: expr, $secp_ctx: expr) => {
 			{
-				let privkey = SecretKey::from_slice(&hex::decode($slice).unwrap()[..]).unwrap();
+				let privkey = SecretKey::from_slice(&<Vec<u8>>::from_hex($slice).unwrap()[..]).unwrap();
 				let pubkey = PublicKey::from_secret_key(&$secp_ctx, &privkey);
 				(privkey, pubkey)
 			}
@@ -2113,14 +3240,14 @@ mod tests {
 		let sig_1 = get_sig_on!(privkey, secp_ctx, String::from("01010101010101010101010101010101"));
 		let sig_2 = get_sig_on!(privkey, secp_ctx, String::from("02020202020202020202020202020202"));
 		let announcement_signatures = msgs::AnnouncementSignatures {
-			channel_id: [4, 0, 0, 0, 0, 0, 0, 0, 5, 0, 0, 0, 0, 0, 0, 0, 6, 0, 0, 0, 0, 0, 0, 0, 7, 0, 0, 0, 0, 0, 0, 0],
+			channel_id: ChannelId::from_bytes([4, 0, 0, 0, 0, 0, 0, 0, 5, 0, 0, 0, 0, 0, 0, 0, 6, 0, 0, 0, 0, 0, 0, 0, 7, 0, 0, 0, 0, 0, 0, 0]),
 			short_channel_id: 2316138423780173,
 			node_signature: sig_1,
 			bitcoin_signature: sig_2,
 		};
 
 		let encoded_value = announcement_signatures.encode();
-		assert_eq!(encoded_value, hex::decode("040000000000000005000000000000000600000000000000070000000000000000083a840000034dd977cb9b53d93a6ff64bb5f1e158b4094b66e798fb12911168a3ccdf80a83096340a6a95da0ae8d9f776528eecdbb747eb6b545495a4319ed5378e35b21e073acf9953cef4700860f5967838eba2bae89288ad188ebf8b20bf995c3ea53a26df1876d0a3a0e13172ba286a673140190c02ba9da60a2e43a745188c8a83c7f3ef").unwrap());
+		assert_eq!(encoded_value, <Vec<u8>>::from_hex("040000000000000005000000000000000600000000000000070000000000000000083a840000034dd977cb9b53d93a6ff64bb5f1e158b4094b66e798fb12911168a3ccdf80a83096340a6a95da0ae8d9f776528eecdbb747eb6b545495a4319ed5378e35b21e073acf9953cef4700860f5967838eba2bae89288ad188ebf8b20bf995c3ea53a26df1876d0a3a0e13172ba286a673140190c02ba9da60a2e43a745188c8a83c7f3ef").unwrap());
 	}
 
 	fn do_encoding_channel_announcement(unknown_features_bits: bool, excess_data: bool) {
@@ -2139,12 +3266,12 @@ mod tests {
 		}
 		let unsigned_channel_announcement = msgs::UnsignedChannelAnnouncement {
 			features,
-			chain_hash: BlockHash::from_hex("6fe28c0ab6f1b372c1a6a246ae63f74f931e8365e15a089c68d6190000000000").unwrap(),
+			chain_hash: ChainHash::using_genesis_block(Network::Bitcoin),
 			short_channel_id: 2316138423780173,
-			node_id_1: pubkey_1,
-			node_id_2: pubkey_2,
-			bitcoin_key_1: pubkey_3,
-			bitcoin_key_2: pubkey_4,
+			node_id_1: NodeId::from_pubkey(&pubkey_1),
+			node_id_2: NodeId::from_pubkey(&pubkey_2),
+			bitcoin_key_1: NodeId::from_pubkey(&pubkey_3),
+			bitcoin_key_2: NodeId::from_pubkey(&pubkey_4),
 			excess_data: if excess_data { vec![10, 0, 0, 20, 0, 0, 30, 0, 0, 40] } else { Vec::new() },
 		};
 		let channel_announcement = msgs::ChannelAnnouncement {
@@ -2155,16 +3282,16 @@ mod tests {
 			contents: unsigned_channel_announcement,
 		};
 		let encoded_value = channel_announcement.encode();
-		let mut target_value = hex::decode("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").unwrap();
+		let mut target_value = <Vec<u8>>::from_hex("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").unwrap();
 		if unknown_features_bits {
-			target_value.append(&mut hex::decode("0002ffff").unwrap());
+			target_value.append(&mut <Vec<u8>>::from_hex("0002ffff").unwrap());
 		} else {
-			target_value.append(&mut hex::decode("0000").unwrap());
+			target_value.append(&mut <Vec<u8>>::from_hex("0000").unwrap());
 		}
-		target_value.append(&mut hex::decode("000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f").unwrap());
-		target_value.append(&mut hex::decode("00083a840000034d031b84c5567b126440995d3ed5aaba0565d71e1834604819ff9c17f5e9d5dd078f024d4b6cd1361032ca9bd2aeb9d900aa4d45d9ead80ac9423374c451a7254d076602531fe6068134503d2723133227c867ac8fa6c83c537e9a44c3c5bdbdcb1fe33703462779ad4aad39514614751a71085f2f10e1c7a593e4e030efb5b8721ce55b0b").unwrap());
+		target_value.append(&mut <Vec<u8>>::from_hex("6fe28c0ab6f1b372c1a6a246ae63f74f931e8365e15a089c68d6190000000000").unwrap());
+		target_value.append(&mut <Vec<u8>>::from_hex("00083a840000034d031b84c5567b126440995d3ed5aaba0565d71e1834604819ff9c17f5e9d5dd078f024d4b6cd1361032ca9bd2aeb9d900aa4d45d9ead80ac9423374c451a7254d076602531fe6068134503d2723133227c867ac8fa6c83c537e9a44c3c5bdbdcb1fe33703462779ad4aad39514614751a71085f2f10e1c7a593e4e030efb5b8721ce55b0b").unwrap());
 		if excess_data {
-			target_value.append(&mut hex::decode("0a00001400001e000028").unwrap());
+			target_value.append(&mut <Vec<u8>>::from_hex("0a00001400001e000028").unwrap());
 		}
 		assert_eq!(encoded_value, target_value);
 	}
@@ -2189,24 +3316,24 @@ mod tests {
 		};
 		let mut addresses = Vec::new();
 		if ipv4 {
-			addresses.push(msgs::NetAddress::IPv4 {
+			addresses.push(SocketAddress::TcpIpV4 {
 				addr: [255, 254, 253, 252],
 				port: 9735
 			});
 		}
 		if ipv6 {
-			addresses.push(msgs::NetAddress::IPv6 {
+			addresses.push(SocketAddress::TcpIpV6 {
 				addr: [255, 254, 253, 252, 251, 250, 249, 248, 247, 246, 245, 244, 243, 242, 241, 240],
 				port: 9735
 			});
 		}
 		if onionv2 {
-			addresses.push(msgs::NetAddress::OnionV2(
+			addresses.push(msgs::SocketAddress::OnionV2(
 				[255, 254, 253, 252, 251, 250, 249, 248, 247, 246, 38, 7]
 			));
 		}
 		if onionv3 {
-			addresses.push(msgs::NetAddress::OnionV3 {
+			addresses.push(msgs::SocketAddress::OnionV3 {
 				ed25519_pubkey:	[255, 254, 253, 252, 251, 250, 249, 248, 247, 246, 245, 244, 243, 242, 241, 240, 239, 238, 237, 236, 235, 234, 233, 232, 231, 230, 229, 228, 227, 226, 225, 224],
 				checksum: 32,
 				version: 16,
@@ -2214,7 +3341,7 @@ mod tests {
 			});
 		}
 		if hostname {
-			addresses.push(msgs::NetAddress::Hostname {
+			addresses.push(SocketAddress::Hostname {
 				hostname: Hostname::try_from(String::from("host")).unwrap(),
 				port: 9735,
 			});
@@ -2226,9 +3353,9 @@ mod tests {
 		let unsigned_node_announcement = msgs::UnsignedNodeAnnouncement {
 			features,
 			timestamp: 20190119,
-			node_id: pubkey_1,
+			node_id: NodeId::from_pubkey(&pubkey_1),
 			rgb: [32; 3],
-			alias: [16;32],
+			alias: NodeAlias([16;32]),
 			addresses,
 			excess_address_data: if excess_address_data { vec![33, 108, 40, 11, 83, 149, 162, 84, 110, 126, 75, 38, 99, 224, 79, 129, 22, 34, 241, 90, 79, 146, 232, 58, 162, 233, 43, 162, 165, 115, 193, 57, 20, 44, 84, 174, 99, 7, 42, 30, 193, 238, 125, 192, 192, 75, 222, 92, 132, 120, 6, 23, 42, 160, 92, 146, 194, 42, 232, 227, 8, 209, 210, 105] } else { Vec::new() },
 			excess_data: if excess_data { vec![59, 18, 204, 25, 92, 224, 162, 209, 189, 166, 168, 139, 239, 161, 159, 160, 127, 81, 202, 167, 92, 232, 56, 55, 242, 137, 101, 96, 11, 138, 172, 171, 8, 85, 255, 176, 231, 65, 236, 95, 124, 65, 66, 30, 152, 41, 169, 212, 134, 17, 200, 200, 49, 247, 27, 229, 234, 115, 230, 101, 148, 151, 127, 253] } else { Vec::new() },
@@ -2239,34 +3366,34 @@ mod tests {
 			contents: unsigned_node_announcement,
 		};
 		let encoded_value = node_announcement.encode();
-		let mut target_value = hex::decode("d977cb9b53d93a6ff64bb5f1e158b4094b66e798fb12911168a3ccdf80a83096340a6a95da0ae8d9f776528eecdbb747eb6b545495a4319ed5378e35b21e073a").unwrap();
+		let mut target_value = <Vec<u8>>::from_hex("d977cb9b53d93a6ff64bb5f1e158b4094b66e798fb12911168a3ccdf80a83096340a6a95da0ae8d9f776528eecdbb747eb6b545495a4319ed5378e35b21e073a").unwrap();
 		if unknown_features_bits {
-			target_value.append(&mut hex::decode("0002ffff").unwrap());
+			target_value.append(&mut <Vec<u8>>::from_hex("0002ffff").unwrap());
 		} else {
-			target_value.append(&mut hex::decode("000122").unwrap());
+			target_value.append(&mut <Vec<u8>>::from_hex("000122").unwrap());
 		}
-		target_value.append(&mut hex::decode("013413a7031b84c5567b126440995d3ed5aaba0565d71e1834604819ff9c17f5e9d5dd078f2020201010101010101010101010101010101010101010101010101010101010101010").unwrap());
+		target_value.append(&mut <Vec<u8>>::from_hex("013413a7031b84c5567b126440995d3ed5aaba0565d71e1834604819ff9c17f5e9d5dd078f2020201010101010101010101010101010101010101010101010101010101010101010").unwrap());
 		target_value.append(&mut vec![(addr_len >> 8) as u8, addr_len as u8]);
 		if ipv4 {
-			target_value.append(&mut hex::decode("01fffefdfc2607").unwrap());
+			target_value.append(&mut <Vec<u8>>::from_hex("01fffefdfc2607").unwrap());
 		}
 		if ipv6 {
-			target_value.append(&mut hex::decode("02fffefdfcfbfaf9f8f7f6f5f4f3f2f1f02607").unwrap());
+			target_value.append(&mut <Vec<u8>>::from_hex("02fffefdfcfbfaf9f8f7f6f5f4f3f2f1f02607").unwrap());
 		}
 		if onionv2 {
-			target_value.append(&mut hex::decode("03fffefdfcfbfaf9f8f7f62607").unwrap());
+			target_value.append(&mut <Vec<u8>>::from_hex("03fffefdfcfbfaf9f8f7f62607").unwrap());
 		}
 		if onionv3 {
-			target_value.append(&mut hex::decode("04fffefdfcfbfaf9f8f7f6f5f4f3f2f1f0efeeedecebeae9e8e7e6e5e4e3e2e1e00020102607").unwrap());
+			target_value.append(&mut <Vec<u8>>::from_hex("04fffefdfcfbfaf9f8f7f6f5f4f3f2f1f0efeeedecebeae9e8e7e6e5e4e3e2e1e00020102607").unwrap());
 		}
 		if hostname {
-			target_value.append(&mut hex::decode("0504686f73742607").unwrap());
+			target_value.append(&mut <Vec<u8>>::from_hex("0504686f73742607").unwrap());
 		}
 		if excess_address_data {
-			target_value.append(&mut hex::decode("216c280b5395a2546e7e4b2663e04f811622f15a4f92e83aa2e92ba2a573c139142c54ae63072a1ec1ee7dc0c04bde5c847806172aa05c92c22ae8e308d1d269").unwrap());
+			target_value.append(&mut <Vec<u8>>::from_hex("216c280b5395a2546e7e4b2663e04f811622f15a4f92e83aa2e92ba2a573c139142c54ae63072a1ec1ee7dc0c04bde5c847806172aa05c92c22ae8e308d1d269").unwrap());
 		}
 		if excess_data {
-			target_value.append(&mut hex::decode("3b12cc195ce0a2d1bda6a88befa19fa07f51caa75ce83837f28965600b8aacab0855ffb0e741ec5f7c41421e9829a9d48611c8c831f71be5ea73e66594977ffd").unwrap());
+			target_value.append(&mut <Vec<u8>>::from_hex("3b12cc195ce0a2d1bda6a88befa19fa07f51caa75ce83837f28965600b8aacab0855ffb0e741ec5f7c41421e9829a9d48611c8c831f71be5ea73e66594977ffd").unwrap());
 		}
 		assert_eq!(encoded_value, target_value);
 	}
@@ -2290,7 +3417,7 @@ mod tests {
 		let (privkey_1, _) = get_keys_from!("0101010101010101010101010101010101010101010101010101010101010101", secp_ctx);
 		let sig_1 = get_sig_on!(privkey_1, secp_ctx, String::from("01010101010101010101010101010101"));
 		let unsigned_channel_update = msgs::UnsignedChannelUpdate {
-			chain_hash: BlockHash::from_hex("6fe28c0ab6f1b372c1a6a246ae63f74f931e8365e15a089c68d6190000000000").unwrap(),
+			chain_hash: ChainHash::using_genesis_block(Network::Bitcoin),
 			short_channel_id: 2316138423780173,
 			timestamp: 20190119,
 			flags: if direction { 1 } else { 0 } | if disable { 1 << 1 } else { 0 },
@@ -2306,11 +3433,11 @@ mod tests {
 			contents: unsigned_channel_update
 		};
 		let encoded_value = channel_update.encode();
-		let mut target_value = hex::decode("d977cb9b53d93a6ff64bb5f1e158b4094b66e798fb12911168a3ccdf80a83096340a6a95da0ae8d9f776528eecdbb747eb6b545495a4319ed5378e35b21e073a").unwrap();
-		target_value.append(&mut hex::decode("000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f").unwrap());
-		target_value.append(&mut hex::decode("00083a840000034d013413a7").unwrap());
-		target_value.append(&mut hex::decode("01").unwrap());
-		target_value.append(&mut hex::decode("00").unwrap());
+		let mut target_value = <Vec<u8>>::from_hex("d977cb9b53d93a6ff64bb5f1e158b4094b66e798fb12911168a3ccdf80a83096340a6a95da0ae8d9f776528eecdbb747eb6b545495a4319ed5378e35b21e073a").unwrap();
+		target_value.append(&mut <Vec<u8>>::from_hex("6fe28c0ab6f1b372c1a6a246ae63f74f931e8365e15a089c68d6190000000000").unwrap());
+		target_value.append(&mut <Vec<u8>>::from_hex("00083a840000034d013413a7").unwrap());
+		target_value.append(&mut <Vec<u8>>::from_hex("01").unwrap());
+		target_value.append(&mut <Vec<u8>>::from_hex("00").unwrap());
 		if direction {
 			let flag = target_value.last_mut().unwrap();
 			*flag = 1;
@@ -2319,10 +3446,10 @@ mod tests {
 			let flag = target_value.last_mut().unwrap();
 			*flag = *flag | 1 << 1;
 		}
-		target_value.append(&mut hex::decode("009000000000000f42400000271000000014").unwrap());
-		target_value.append(&mut hex::decode("0000777788889999").unwrap());
+		target_value.append(&mut <Vec<u8>>::from_hex("009000000000000f42400000271000000014").unwrap());
+		target_value.append(&mut <Vec<u8>>::from_hex("0000777788889999").unwrap());
 		if excess_data {
-			target_value.append(&mut hex::decode("000000003b9aca00").unwrap());
+			target_value.append(&mut <Vec<u8>>::from_hex("000000003b9aca00").unwrap());
 		}
 		assert_eq!(encoded_value, target_value);
 	}
@@ -2348,41 +3475,43 @@ mod tests {
 		let (_, pubkey_5) = get_keys_from!("0505050505050505050505050505050505050505050505050505050505050505", secp_ctx);
 		let (_, pubkey_6) = get_keys_from!("0606060606060606060606060606060606060606060606060606060606060606", secp_ctx);
 		let open_channel = msgs::OpenChannel {
-			chain_hash: BlockHash::from_hex("6fe28c0ab6f1b372c1a6a246ae63f74f931e8365e15a089c68d6190000000000").unwrap(),
-			temporary_channel_id: [2; 32],
-			funding_satoshis: 1311768467284833366,
+			common_fields: CommonOpenChannelFields {
+				chain_hash: ChainHash::using_genesis_block(Network::Bitcoin),
+				temporary_channel_id: ChannelId::from_bytes([2; 32]),
+				funding_satoshis: 1311768467284833366,
+				dust_limit_satoshis: 3608586615801332854,
+				max_htlc_value_in_flight_msat: 8517154655701053848,
+				htlc_minimum_msat: 2316138423780173,
+				commitment_feerate_sat_per_1000_weight: 821716,
+				to_self_delay: 49340,
+				max_accepted_htlcs: 49340,
+				funding_pubkey: pubkey_1,
+				revocation_basepoint: pubkey_2,
+				payment_basepoint: pubkey_3,
+				delayed_payment_basepoint: pubkey_4,
+				htlc_basepoint: pubkey_5,
+				first_per_commitment_point: pubkey_6,
+				channel_flags: if random_bit { 1 << 5 } else { 0 },
+				shutdown_scriptpubkey: if shutdown { Some(Address::p2pkh(&::bitcoin::PublicKey{compressed: true, inner: pubkey_1}, Network::Testnet).script_pubkey()) } else { None },
+				channel_type: if incl_chan_type { Some(ChannelTypeFeatures::empty()) } else { None },
+			},
 			push_msat: 2536655962884945560,
-			dust_limit_satoshis: 3608586615801332854,
-			max_htlc_value_in_flight_msat: 8517154655701053848,
 			channel_reserve_satoshis: 8665828695742877976,
-			htlc_minimum_msat: 2316138423780173,
-			feerate_per_kw: 821716,
-			to_self_delay: 49340,
-			max_accepted_htlcs: 49340,
-			funding_pubkey: pubkey_1,
-			revocation_basepoint: pubkey_2,
-			payment_point: pubkey_3,
-			delayed_payment_basepoint: pubkey_4,
-			htlc_basepoint: pubkey_5,
-			first_per_commitment_point: pubkey_6,
-			channel_flags: if random_bit { 1 << 5 } else { 0 },
-			shutdown_scriptpubkey: if shutdown { OptionalField::Present(Address::p2pkh(&::bitcoin::PublicKey{compressed: true, inner: pubkey_1}, Network::Testnet).script_pubkey()) } else { OptionalField::Absent },
-			channel_type: if incl_chan_type { Some(ChannelTypeFeatures::empty()) } else { None },
 		};
 		let encoded_value = open_channel.encode();
 		let mut target_value = Vec::new();
-		target_value.append(&mut hex::decode("000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f").unwrap());
-		target_value.append(&mut hex::decode("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").unwrap());
+		target_value.append(&mut <Vec<u8>>::from_hex("6fe28c0ab6f1b372c1a6a246ae63f74f931e8365e15a089c68d6190000000000").unwrap());
+		target_value.append(&mut <Vec<u8>>::from_hex("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").unwrap());
 		if random_bit {
-			target_value.append(&mut hex::decode("20").unwrap());
+			target_value.append(&mut <Vec<u8>>::from_hex("20").unwrap());
 		} else {
-			target_value.append(&mut hex::decode("00").unwrap());
+			target_value.append(&mut <Vec<u8>>::from_hex("00").unwrap());
 		}
 		if shutdown {
-			target_value.append(&mut hex::decode("001976a91479b000887626b294a914501a4cd226b58b23598388ac").unwrap());
+			target_value.append(&mut <Vec<u8>>::from_hex("001976a91479b000887626b294a914501a4cd226b58b23598388ac").unwrap());
 		}
 		if incl_chan_type {
-			target_value.append(&mut hex::decode("0100").unwrap());
+			target_value.append(&mut <Vec<u8>>::from_hex("0100").unwrap());
 		}
 		assert_eq!(encoded_value, target_value);
 	}
@@ -2399,6 +3528,99 @@ mod tests {
 		do_encoding_open_channel(true, true, true);
 	}
 
+	fn do_encoding_open_channelv2(random_bit: bool, shutdown: bool, incl_chan_type: bool, require_confirmed_inputs: bool) {
+		let secp_ctx = Secp256k1::new();
+		let (_, pubkey_1) = get_keys_from!("0101010101010101010101010101010101010101010101010101010101010101", secp_ctx);
+		let (_, pubkey_2) = get_keys_from!("0202020202020202020202020202020202020202020202020202020202020202", secp_ctx);
+		let (_, pubkey_3) = get_keys_from!("0303030303030303030303030303030303030303030303030303030303030303", secp_ctx);
+		let (_, pubkey_4) = get_keys_from!("0404040404040404040404040404040404040404040404040404040404040404", secp_ctx);
+		let (_, pubkey_5) = get_keys_from!("0505050505050505050505050505050505050505050505050505050505050505", secp_ctx);
+		let (_, pubkey_6) = get_keys_from!("0606060606060606060606060606060606060606060606060606060606060606", secp_ctx);
+		let (_, pubkey_7) = get_keys_from!("0707070707070707070707070707070707070707070707070707070707070707", secp_ctx);
+		let open_channelv2 = msgs::OpenChannelV2 {
+			common_fields: CommonOpenChannelFields {
+				chain_hash: ChainHash::using_genesis_block(Network::Bitcoin),
+				temporary_channel_id: ChannelId::from_bytes([2; 32]),
+				commitment_feerate_sat_per_1000_weight: 821716,
+				funding_satoshis: 1311768467284833366,
+				dust_limit_satoshis: 3608586615801332854,
+				max_htlc_value_in_flight_msat: 8517154655701053848,
+				htlc_minimum_msat: 2316138423780173,
+				to_self_delay: 49340,
+				max_accepted_htlcs: 49340,
+				funding_pubkey: pubkey_1,
+				revocation_basepoint: pubkey_2,
+				payment_basepoint: pubkey_3,
+				delayed_payment_basepoint: pubkey_4,
+				htlc_basepoint: pubkey_5,
+				first_per_commitment_point: pubkey_6,
+				channel_flags: if random_bit { 1 << 5 } else { 0 },
+				shutdown_scriptpubkey: if shutdown { Some(Address::p2pkh(&::bitcoin::PublicKey{compressed: true, inner: pubkey_1}, Network::Testnet).script_pubkey()) } else { None },
+				channel_type: if incl_chan_type { Some(ChannelTypeFeatures::empty()) } else { None },
+			},
+			funding_feerate_sat_per_1000_weight: 821716,
+			locktime: 305419896,
+			second_per_commitment_point: pubkey_7,
+			require_confirmed_inputs: if require_confirmed_inputs { Some(()) } else { None },
+		};
+		let encoded_value = open_channelv2.encode();
+		let mut target_value = Vec::new();
+		target_value.append(&mut <Vec<u8>>::from_hex("6fe28c0ab6f1b372c1a6a246ae63f74f931e8365e15a089c68d6190000000000").unwrap());
+		target_value.append(&mut <Vec<u8>>::from_hex("0202020202020202020202020202020202020202020202020202020202020202").unwrap());
+		target_value.append(&mut <Vec<u8>>::from_hex("000c89d4").unwrap());
+		target_value.append(&mut <Vec<u8>>::from_hex("000c89d4").unwrap());
+		target_value.append(&mut <Vec<u8>>::from_hex("1234567890123456").unwrap());
+		target_value.append(&mut <Vec<u8>>::from_hex("3214466870114476").unwrap());
+		target_value.append(&mut <Vec<u8>>::from_hex("7633030896203198").unwrap());
+		target_value.append(&mut <Vec<u8>>::from_hex("00083a840000034d").unwrap());
+		target_value.append(&mut <Vec<u8>>::from_hex("c0bc").unwrap());
+		target_value.append(&mut <Vec<u8>>::from_hex("c0bc").unwrap());
+		target_value.append(&mut <Vec<u8>>::from_hex("12345678").unwrap());
+		target_value.append(&mut <Vec<u8>>::from_hex("031b84c5567b126440995d3ed5aaba0565d71e1834604819ff9c17f5e9d5dd078f").unwrap());
+		target_value.append(&mut <Vec<u8>>::from_hex("024d4b6cd1361032ca9bd2aeb9d900aa4d45d9ead80ac9423374c451a7254d0766").unwrap());
+		target_value.append(&mut <Vec<u8>>::from_hex("02531fe6068134503d2723133227c867ac8fa6c83c537e9a44c3c5bdbdcb1fe337").unwrap());
+		target_value.append(&mut <Vec<u8>>::from_hex("03462779ad4aad39514614751a71085f2f10e1c7a593e4e030efb5b8721ce55b0b").unwrap());
+		target_value.append(&mut <Vec<u8>>::from_hex("0362c0a046dacce86ddd0343c6d3c7c79c2208ba0d9c9cf24a6d046d21d21f90f7").unwrap());
+		target_value.append(&mut <Vec<u8>>::from_hex("03f006a18d5653c4edf5391ff23a61f03ff83d237e880ee61187fa9f379a028e0a").unwrap());
+		target_value.append(&mut <Vec<u8>>::from_hex("02989c0b76cb563971fdc9bef31ec06c3560f3249d6ee9e5d83c57625596e05f6f").unwrap());
+
+		if random_bit {
+			target_value.append(&mut <Vec<u8>>::from_hex("20").unwrap());
+		} else {
+			target_value.append(&mut <Vec<u8>>::from_hex("00").unwrap());
+		}
+		if shutdown {
+			target_value.append(&mut <Vec<u8>>::from_hex("001976a91479b000887626b294a914501a4cd226b58b23598388ac").unwrap());
+		}
+		if incl_chan_type {
+			target_value.append(&mut <Vec<u8>>::from_hex("0100").unwrap());
+		}
+		if require_confirmed_inputs {
+			target_value.append(&mut <Vec<u8>>::from_hex("0200").unwrap());
+		}
+		assert_eq!(encoded_value, target_value);
+	}
+
+	#[test]
+	fn encoding_open_channelv2() {
+		do_encoding_open_channelv2(false, false, false, false);
+		do_encoding_open_channelv2(false, false, false, true);
+		do_encoding_open_channelv2(false, false, true, false);
+		do_encoding_open_channelv2(false, false, true, true);
+		do_encoding_open_channelv2(false, true, false, false);
+		do_encoding_open_channelv2(false, true, false, true);
+		do_encoding_open_channelv2(false, true, true, false);
+		do_encoding_open_channelv2(false, true, true, true);
+		do_encoding_open_channelv2(true, false, false, false);
+		do_encoding_open_channelv2(true, false, false, true);
+		do_encoding_open_channelv2(true, false, true, false);
+		do_encoding_open_channelv2(true, false, true, true);
+		do_encoding_open_channelv2(true, true, false, false);
+		do_encoding_open_channelv2(true, true, false, true);
+		do_encoding_open_channelv2(true, true, true, false);
+		do_encoding_open_channelv2(true, true, true, true);
+	}
+
 	fn do_encoding_accept_channel(shutdown: bool) {
 		let secp_ctx = Secp256k1::new();
 		let (_, pubkey_1) = get_keys_from!("0101010101010101010101010101010101010101010101010101010101010101", secp_ctx);
@@ -2408,27 +3630,31 @@ mod tests {
 		let (_, pubkey_5) = get_keys_from!("0505050505050505050505050505050505050505050505050505050505050505", secp_ctx);
 		let (_, pubkey_6) = get_keys_from!("0606060606060606060606060606060606060606060606060606060606060606", secp_ctx);
 		let accept_channel = msgs::AcceptChannel {
-			temporary_channel_id: [2; 32],
-			dust_limit_satoshis: 1311768467284833366,
-			max_htlc_value_in_flight_msat: 2536655962884945560,
+			common_fields: CommonAcceptChannelFields {
+				temporary_channel_id: ChannelId::from_bytes([2; 32]),
+				dust_limit_satoshis: 1311768467284833366,
+				max_htlc_value_in_flight_msat: 2536655962884945560,
+				htlc_minimum_msat: 2316138423780173,
+				minimum_depth: 821716,
+				to_self_delay: 49340,
+				max_accepted_htlcs: 49340,
+				funding_pubkey: pubkey_1,
+				revocation_basepoint: pubkey_2,
+				payment_basepoint: pubkey_3,
+				delayed_payment_basepoint: pubkey_4,
+				htlc_basepoint: pubkey_5,
+				first_per_commitment_point: pubkey_6,
+				shutdown_scriptpubkey: if shutdown { Some(Address::p2pkh(&::bitcoin::PublicKey{compressed: true, inner: pubkey_1}, Network::Testnet).script_pubkey()) } else { None },
+				channel_type: None,
+			},
 			channel_reserve_satoshis: 3608586615801332854,
-			htlc_minimum_msat: 2316138423780173,
-			minimum_depth: 821716,
-			to_self_delay: 49340,
-			max_accepted_htlcs: 49340,
-			funding_pubkey: pubkey_1,
-			revocation_basepoint: pubkey_2,
-			payment_point: pubkey_3,
-			delayed_payment_basepoint: pubkey_4,
-			htlc_basepoint: pubkey_5,
-			first_per_commitment_point: pubkey_6,
-			shutdown_scriptpubkey: if shutdown { OptionalField::Present(Address::p2pkh(&::bitcoin::PublicKey{compressed: true, inner: pubkey_1}, Network::Testnet).script_pubkey()) } else { OptionalField::Absent },
-			channel_type: None,
+			#[cfg(taproot)]
+			next_local_nonce: None,
 		};
 		let encoded_value = accept_channel.encode();
-		let mut target_value = hex::decode("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").unwrap();
+		let mut target_value = <Vec<u8>>::from_hex("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").unwrap();
 		if shutdown {
-			target_value.append(&mut hex::decode("001976a91479b000887626b294a914501a4cd226b58b23598388ac").unwrap());
+			target_value.append(&mut <Vec<u8>>::from_hex("001976a91479b000887626b294a914501a4cd226b58b23598388ac").unwrap());
 		}
 		assert_eq!(encoded_value, target_value);
 	}
@@ -2439,19 +3665,82 @@ mod tests {
 		do_encoding_accept_channel(true);
 	}
 
+	fn do_encoding_accept_channelv2(shutdown: bool) {
+		let secp_ctx = Secp256k1::new();
+		let (_, pubkey_1) = get_keys_from!("0101010101010101010101010101010101010101010101010101010101010101", secp_ctx);
+		let (_, pubkey_2) = get_keys_from!("0202020202020202020202020202020202020202020202020202020202020202", secp_ctx);
+		let (_, pubkey_3) = get_keys_from!("0303030303030303030303030303030303030303030303030303030303030303", secp_ctx);
+		let (_, pubkey_4) = get_keys_from!("0404040404040404040404040404040404040404040404040404040404040404", secp_ctx);
+		let (_, pubkey_5) = get_keys_from!("0505050505050505050505050505050505050505050505050505050505050505", secp_ctx);
+		let (_, pubkey_6) = get_keys_from!("0606060606060606060606060606060606060606060606060606060606060606", secp_ctx);
+		let (_, pubkey_7) = get_keys_from!("0707070707070707070707070707070707070707070707070707070707070707", secp_ctx);
+		let accept_channelv2 = msgs::AcceptChannelV2 {
+			common_fields: CommonAcceptChannelFields {
+				temporary_channel_id: ChannelId::from_bytes([2; 32]),
+				dust_limit_satoshis: 1311768467284833366,
+				max_htlc_value_in_flight_msat: 2536655962884945560,
+				htlc_minimum_msat: 2316138423780173,
+				minimum_depth: 821716,
+				to_self_delay: 49340,
+				max_accepted_htlcs: 49340,
+				funding_pubkey: pubkey_1,
+				revocation_basepoint: pubkey_2,
+				payment_basepoint: pubkey_3,
+				delayed_payment_basepoint: pubkey_4,
+				htlc_basepoint: pubkey_5,
+				first_per_commitment_point: pubkey_6,
+				shutdown_scriptpubkey: if shutdown { Some(Address::p2pkh(&::bitcoin::PublicKey{compressed: true, inner: pubkey_1}, Network::Testnet).script_pubkey()) } else { None },
+				channel_type: None,
+			},
+			funding_satoshis: 1311768467284833366,
+			second_per_commitment_point: pubkey_7,
+			require_confirmed_inputs: None,
+		};
+		let encoded_value = accept_channelv2.encode();
+		let mut target_value = <Vec<u8>>::from_hex("0202020202020202020202020202020202020202020202020202020202020202").unwrap(); // temporary_channel_id
+		target_value.append(&mut <Vec<u8>>::from_hex("1234567890123456").unwrap()); // funding_satoshis
+		target_value.append(&mut <Vec<u8>>::from_hex("1234567890123456").unwrap()); // dust_limit_satoshis
+		target_value.append(&mut <Vec<u8>>::from_hex("2334032891223698").unwrap()); // max_htlc_value_in_flight_msat
+		target_value.append(&mut <Vec<u8>>::from_hex("00083a840000034d").unwrap()); // htlc_minimum_msat
+		target_value.append(&mut <Vec<u8>>::from_hex("000c89d4").unwrap()); //  minimum_depth
+		target_value.append(&mut <Vec<u8>>::from_hex("c0bc").unwrap()); // to_self_delay
+		target_value.append(&mut <Vec<u8>>::from_hex("c0bc").unwrap()); // max_accepted_htlcs
+		target_value.append(&mut <Vec<u8>>::from_hex("031b84c5567b126440995d3ed5aaba0565d71e1834604819ff9c17f5e9d5dd078f").unwrap()); // funding_pubkey
+		target_value.append(&mut <Vec<u8>>::from_hex("024d4b6cd1361032ca9bd2aeb9d900aa4d45d9ead80ac9423374c451a7254d0766").unwrap()); // revocation_basepoint
+		target_value.append(&mut <Vec<u8>>::from_hex("02531fe6068134503d2723133227c867ac8fa6c83c537e9a44c3c5bdbdcb1fe337").unwrap()); // payment_basepoint
+		target_value.append(&mut <Vec<u8>>::from_hex("03462779ad4aad39514614751a71085f2f10e1c7a593e4e030efb5b8721ce55b0b").unwrap()); // delayed_payment_basepoint
+		target_value.append(&mut <Vec<u8>>::from_hex("0362c0a046dacce86ddd0343c6d3c7c79c2208ba0d9c9cf24a6d046d21d21f90f7").unwrap()); // htlc_basepoint
+		target_value.append(&mut <Vec<u8>>::from_hex("03f006a18d5653c4edf5391ff23a61f03ff83d237e880ee61187fa9f379a028e0a").unwrap()); // first_per_commitment_point
+		target_value.append(&mut <Vec<u8>>::from_hex("02989c0b76cb563971fdc9bef31ec06c3560f3249d6ee9e5d83c57625596e05f6f").unwrap()); // second_per_commitment_point
+		if shutdown {
+			target_value.append(&mut <Vec<u8>>::from_hex("001976a91479b000887626b294a914501a4cd226b58b23598388ac").unwrap());
+		}
+		assert_eq!(encoded_value, target_value);
+	}
+
+	#[test]
+	fn encoding_accept_channelv2() {
+		do_encoding_accept_channelv2(false);
+		do_encoding_accept_channelv2(true);
+	}
+
 	#[test]
 	fn encoding_funding_created() {
 		let secp_ctx = Secp256k1::new();
 		let (privkey_1, _) = get_keys_from!("0101010101010101010101010101010101010101010101010101010101010101", secp_ctx);
 		let sig_1 = get_sig_on!(privkey_1, secp_ctx, String::from("01010101010101010101010101010101"));
 		let funding_created = msgs::FundingCreated {
-			temporary_channel_id: [2; 32],
-			funding_txid: Txid::from_hex("c2d4449afa8d26140898dd54d3390b057ba2a5afcf03ba29d7dc0d8b9ffe966e").unwrap(),
+			temporary_channel_id: ChannelId::from_bytes([2; 32]),
+			funding_txid: Txid::from_str("c2d4449afa8d26140898dd54d3390b057ba2a5afcf03ba29d7dc0d8b9ffe966e").unwrap(),
 			funding_output_index: 255,
 			signature: sig_1,
+			#[cfg(taproot)]
+			partial_signature_with_nonce: None,
+			#[cfg(taproot)]
+			next_local_nonce: None,
 		};
 		let encoded_value = funding_created.encode();
-		let target_value = hex::decode("02020202020202020202020202020202020202020202020202020202020202026e96fe9f8b0ddcd729ba03cfafa5a27b050b39d354dd980814268dfa9a44d4c200ffd977cb9b53d93a6ff64bb5f1e158b4094b66e798fb12911168a3ccdf80a83096340a6a95da0ae8d9f776528eecdbb747eb6b545495a4319ed5378e35b21e073a").unwrap();
+		let target_value = <Vec<u8>>::from_hex("02020202020202020202020202020202020202020202020202020202020202026e96fe9f8b0ddcd729ba03cfafa5a27b050b39d354dd980814268dfa9a44d4c200ffd977cb9b53d93a6ff64bb5f1e158b4094b66e798fb12911168a3ccdf80a83096340a6a95da0ae8d9f776528eecdbb747eb6b545495a4319ed5378e35b21e073a").unwrap();
 		assert_eq!(encoded_value, target_value);
 	}
 
@@ -2461,11 +3750,13 @@ mod tests {
 		let (privkey_1, _) = get_keys_from!("0101010101010101010101010101010101010101010101010101010101010101", secp_ctx);
 		let sig_1 = get_sig_on!(privkey_1, secp_ctx, String::from("01010101010101010101010101010101"));
 		let funding_signed = msgs::FundingSigned {
-			channel_id: [2; 32],
+			channel_id: ChannelId::from_bytes([2; 32]),
 			signature: sig_1,
+			#[cfg(taproot)]
+			partial_signature_with_nonce: None,
 		};
 		let encoded_value = funding_signed.encode();
-		let target_value = hex::decode("0202020202020202020202020202020202020202020202020202020202020202d977cb9b53d93a6ff64bb5f1e158b4094b66e798fb12911168a3ccdf80a83096340a6a95da0ae8d9f776528eecdbb747eb6b545495a4319ed5378e35b21e073a").unwrap();
+		let target_value = <Vec<u8>>::from_hex("0202020202020202020202020202020202020202020202020202020202020202d977cb9b53d93a6ff64bb5f1e158b4094b66e798fb12911168a3ccdf80a83096340a6a95da0ae8d9f776528eecdbb747eb6b545495a4319ed5378e35b21e073a").unwrap();
 		assert_eq!(encoded_value, target_value);
 	}
 
@@ -2474,12 +3765,235 @@ mod tests {
 		let secp_ctx = Secp256k1::new();
 		let (_, pubkey_1,) = get_keys_from!("0101010101010101010101010101010101010101010101010101010101010101", secp_ctx);
 		let channel_ready = msgs::ChannelReady {
-			channel_id: [2; 32],
+			channel_id: ChannelId::from_bytes([2; 32]),
 			next_per_commitment_point: pubkey_1,
 			short_channel_id_alias: None,
 		};
 		let encoded_value = channel_ready.encode();
-		let target_value = hex::decode("0202020202020202020202020202020202020202020202020202020202020202031b84c5567b126440995d3ed5aaba0565d71e1834604819ff9c17f5e9d5dd078f").unwrap();
+		let target_value = <Vec<u8>>::from_hex("0202020202020202020202020202020202020202020202020202020202020202031b84c5567b126440995d3ed5aaba0565d71e1834604819ff9c17f5e9d5dd078f").unwrap();
+		assert_eq!(encoded_value, target_value);
+	}
+
+	#[test]
+	fn encoding_splice() {
+		let secp_ctx = Secp256k1::new();
+		let (_, pubkey_1,) = get_keys_from!("0101010101010101010101010101010101010101010101010101010101010101", secp_ctx);
+		let splice = msgs::Splice {
+			chain_hash: ChainHash::from_hex("6fe28c0ab6f1b372c1a6a246ae63f74f931e8365e15a089c68d6190000000000").unwrap(),
+			channel_id: ChannelId::from_bytes([2; 32]),
+			relative_satoshis: 123456,
+			funding_feerate_perkw: 2000,
+			locktime: 0,
+			funding_pubkey: pubkey_1,
+		};
+		let encoded_value = splice.encode();
+		assert_eq!(encoded_value.as_hex().to_string(), "02020202020202020202020202020202020202020202020202020202020202026fe28c0ab6f1b372c1a6a246ae63f74f931e8365e15a089c68d6190000000000000000000001e240000007d000000000031b84c5567b126440995d3ed5aaba0565d71e1834604819ff9c17f5e9d5dd078f");
+	}
+
+	#[test]
+	fn encoding_stfu() {
+		let stfu = msgs::Stfu {
+			channel_id: ChannelId::from_bytes([2; 32]),
+			initiator: 1,
+		};
+		let encoded_value = stfu.encode();
+		assert_eq!(encoded_value.as_hex().to_string(), "020202020202020202020202020202020202020202020202020202020202020201");
+	}
+
+	#[test]
+	fn encoding_splice_ack() {
+		let secp_ctx = Secp256k1::new();
+		let (_, pubkey_1,) = get_keys_from!("0101010101010101010101010101010101010101010101010101010101010101", secp_ctx);
+		let splice = msgs::SpliceAck {
+			chain_hash: ChainHash::from_hex("6fe28c0ab6f1b372c1a6a246ae63f74f931e8365e15a089c68d6190000000000").unwrap(),
+			channel_id: ChannelId::from_bytes([2; 32]),
+			relative_satoshis: 123456,
+			funding_pubkey: pubkey_1,
+		};
+		let encoded_value = splice.encode();
+		assert_eq!(encoded_value.as_hex().to_string(), "02020202020202020202020202020202020202020202020202020202020202026fe28c0ab6f1b372c1a6a246ae63f74f931e8365e15a089c68d6190000000000000000000001e240031b84c5567b126440995d3ed5aaba0565d71e1834604819ff9c17f5e9d5dd078f");
+	}
+
+	#[test]
+	fn encoding_splice_locked() {
+		let splice = msgs::SpliceLocked {
+			channel_id: ChannelId::from_bytes([2; 32]),
+		};
+		let encoded_value = splice.encode();
+		assert_eq!(encoded_value.as_hex().to_string(), "0202020202020202020202020202020202020202020202020202020202020202");
+	}
+
+	#[test]
+	fn encoding_tx_add_input() {
+		let tx_add_input = msgs::TxAddInput {
+			channel_id: ChannelId::from_bytes([2; 32]),
+			serial_id: 4886718345,
+			prevtx: TransactionU16LenLimited::new(Transaction {
+				version: 2,
+				lock_time: LockTime::ZERO,
+				input: vec![TxIn {
+					previous_output: OutPoint { txid: Txid::from_str("305bab643ee297b8b6b76b320792c8223d55082122cb606bf89382146ced9c77").unwrap(), index: 2 }.into_bitcoin_outpoint(),
+					script_sig: ScriptBuf::new(),
+					sequence: Sequence(0xfffffffd),
+					witness: Witness::from_slice(&vec![
+						<Vec<u8>>::from_hex("304402206af85b7dd67450ad12c979302fac49dfacbc6a8620f49c5da2b5721cf9565ca502207002b32fed9ce1bf095f57aeb10c36928ac60b12e723d97d2964a54640ceefa701").unwrap(),
+						<Vec<u8>>::from_hex("0301ab7dc16488303549bfcdd80f6ae5ee4c20bf97ab5410bbd6b1bfa85dcd6944").unwrap()]),
+				}],
+				output: vec![
+					TxOut {
+						value: 12704566,
+						script_pubkey: Address::from_str("bc1qzlffunw52jav8vwdu5x3jfk6sr8u22rmq3xzw2").unwrap().payload.script_pubkey(),
+					},
+					TxOut {
+						value: 245148,
+						script_pubkey: Address::from_str("bc1qxmk834g5marzm227dgqvynd23y2nvt2ztwcw2z").unwrap().payload.script_pubkey(),
+					},
+				],
+			}).unwrap(),
+			prevtx_out: 305419896,
+			sequence: 305419896,
+		};
+		let encoded_value = tx_add_input.encode();
+		let target_value = <Vec<u8>>::from_hex("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").unwrap();
+		assert_eq!(encoded_value, target_value);
+	}
+
+	#[test]
+	fn encoding_tx_add_output() {
+		let tx_add_output = msgs::TxAddOutput {
+			channel_id: ChannelId::from_bytes([2; 32]),
+			serial_id: 4886718345,
+			sats: 4886718345,
+			script: Address::from_str("bc1qxmk834g5marzm227dgqvynd23y2nvt2ztwcw2z").unwrap().payload.script_pubkey(),
+		};
+		let encoded_value = tx_add_output.encode();
+		let target_value = <Vec<u8>>::from_hex("0202020202020202020202020202020202020202020202020202020202020202000000012345678900000001234567890016001436ec78d514df462da95e6a00c24daa8915362d42").unwrap();
+		assert_eq!(encoded_value, target_value);
+	}
+
+	#[test]
+	fn encoding_tx_remove_input() {
+		let tx_remove_input = msgs::TxRemoveInput {
+			channel_id: ChannelId::from_bytes([2; 32]),
+			serial_id: 4886718345,
+		};
+		let encoded_value = tx_remove_input.encode();
+		let target_value = <Vec<u8>>::from_hex("02020202020202020202020202020202020202020202020202020202020202020000000123456789").unwrap();
+		assert_eq!(encoded_value, target_value);
+	}
+
+	#[test]
+	fn encoding_tx_remove_output() {
+		let tx_remove_output = msgs::TxRemoveOutput {
+			channel_id: ChannelId::from_bytes([2; 32]),
+			serial_id: 4886718345,
+		};
+		let encoded_value = tx_remove_output.encode();
+		let target_value = <Vec<u8>>::from_hex("02020202020202020202020202020202020202020202020202020202020202020000000123456789").unwrap();
+		assert_eq!(encoded_value, target_value);
+	}
+
+	#[test]
+	fn encoding_tx_complete() {
+		let tx_complete = msgs::TxComplete {
+			channel_id: ChannelId::from_bytes([2; 32]),
+		};
+		let encoded_value = tx_complete.encode();
+		let target_value = <Vec<u8>>::from_hex("0202020202020202020202020202020202020202020202020202020202020202").unwrap();
+		assert_eq!(encoded_value, target_value);
+	}
+
+	#[test]
+	fn encoding_tx_signatures() {
+		let tx_signatures = msgs::TxSignatures {
+			channel_id: ChannelId::from_bytes([2; 32]),
+			tx_hash: Txid::from_str("c2d4449afa8d26140898dd54d3390b057ba2a5afcf03ba29d7dc0d8b9ffe966e").unwrap(),
+			witnesses: vec![
+				Witness::from_slice(&vec![
+					<Vec<u8>>::from_hex("304402206af85b7dd67450ad12c979302fac49dfacbc6a8620f49c5da2b5721cf9565ca502207002b32fed9ce1bf095f57aeb10c36928ac60b12e723d97d2964a54640ceefa701").unwrap(),
+					<Vec<u8>>::from_hex("0301ab7dc16488303549bfcdd80f6ae5ee4c20bf97ab5410bbd6b1bfa85dcd6944").unwrap()]),
+				Witness::from_slice(&vec![
+					<Vec<u8>>::from_hex("3045022100ee00dbf4a862463e837d7c08509de814d620e4d9830fa84818713e0fa358f145022021c3c7060c4d53fe84fd165d60208451108a778c13b92ca4c6bad439236126cc01").unwrap(),
+					<Vec<u8>>::from_hex("028fbbf0b16f5ba5bcb5dd37cd4047ce6f726a21c06682f9ec2f52b057de1dbdb5").unwrap()]),
+			],
+		};
+		let encoded_value = tx_signatures.encode();
+		let mut target_value = <Vec<u8>>::from_hex("0202020202020202020202020202020202020202020202020202020202020202").unwrap(); // channel_id
+		target_value.append(&mut <Vec<u8>>::from_hex("6e96fe9f8b0ddcd729ba03cfafa5a27b050b39d354dd980814268dfa9a44d4c2").unwrap()); // tx_hash (sha256) (big endian byte order)
+		target_value.append(&mut <Vec<u8>>::from_hex("0002").unwrap()); // num_witnesses (u16)
+		// Witness 1
+		target_value.append(&mut <Vec<u8>>::from_hex("006b").unwrap()); // len of witness_data
+		target_value.append(&mut <Vec<u8>>::from_hex("02").unwrap()); // num_witness_elements (VarInt)
+		target_value.append(&mut <Vec<u8>>::from_hex("47").unwrap()); // len of witness element data (VarInt)
+		target_value.append(&mut <Vec<u8>>::from_hex("304402206af85b7dd67450ad12c979302fac49dfacbc6a8620f49c5da2b5721cf9565ca502207002b32fed9ce1bf095f57aeb10c36928ac60b12e723d97d2964a54640ceefa701").unwrap());
+		target_value.append(&mut <Vec<u8>>::from_hex("21").unwrap()); // len of witness element data (VarInt)
+		target_value.append(&mut <Vec<u8>>::from_hex("0301ab7dc16488303549bfcdd80f6ae5ee4c20bf97ab5410bbd6b1bfa85dcd6944").unwrap());
+		// Witness 2
+		target_value.append(&mut <Vec<u8>>::from_hex("006c").unwrap()); // len of witness_data
+		target_value.append(&mut <Vec<u8>>::from_hex("02").unwrap()); // num_witness_elements (VarInt)
+		target_value.append(&mut <Vec<u8>>::from_hex("48").unwrap()); // len of witness element data (VarInt)
+		target_value.append(&mut <Vec<u8>>::from_hex("3045022100ee00dbf4a862463e837d7c08509de814d620e4d9830fa84818713e0fa358f145022021c3c7060c4d53fe84fd165d60208451108a778c13b92ca4c6bad439236126cc01").unwrap());
+		target_value.append(&mut <Vec<u8>>::from_hex("21").unwrap()); // len of witness element data (VarInt)
+		target_value.append(&mut <Vec<u8>>::from_hex("028fbbf0b16f5ba5bcb5dd37cd4047ce6f726a21c06682f9ec2f52b057de1dbdb5").unwrap());
+		assert_eq!(encoded_value, target_value);
+	}
+
+	fn do_encoding_tx_init_rbf(funding_value_with_hex_target: Option<(i64, &str)>) {
+		let tx_init_rbf = msgs::TxInitRbf {
+			channel_id: ChannelId::from_bytes([2; 32]),
+			locktime: 305419896,
+			feerate_sat_per_1000_weight: 20190119,
+			funding_output_contribution: if let Some((value, _)) = funding_value_with_hex_target { Some(value) } else { None },
+		};
+		let encoded_value = tx_init_rbf.encode();
+		let mut target_value = <Vec<u8>>::from_hex("0202020202020202020202020202020202020202020202020202020202020202").unwrap(); // channel_id
+		target_value.append(&mut <Vec<u8>>::from_hex("12345678").unwrap()); // locktime
+		target_value.append(&mut <Vec<u8>>::from_hex("013413a7").unwrap()); // feerate_sat_per_1000_weight
+		if let Some((_, target)) = funding_value_with_hex_target {
+			target_value.push(0x00); // Type
+			target_value.push(target.len() as u8 / 2); // Length
+			target_value.append(&mut <Vec<u8>>::from_hex(target).unwrap()); // Value (i64)
+		}
+		assert_eq!(encoded_value, target_value);
+	}
+
+	#[test]
+	fn encoding_tx_init_rbf() {
+		do_encoding_tx_init_rbf(Some((1311768467284833366, "1234567890123456")));
+		do_encoding_tx_init_rbf(Some((13117684672, "000000030DDFFBC0")));
+		do_encoding_tx_init_rbf(None);
+	}
+
+	fn do_encoding_tx_ack_rbf(funding_value_with_hex_target: Option<(i64, &str)>) {
+		let tx_ack_rbf = msgs::TxAckRbf {
+			channel_id: ChannelId::from_bytes([2; 32]),
+			funding_output_contribution: if let Some((value, _)) = funding_value_with_hex_target { Some(value) } else { None },
+		};
+		let encoded_value = tx_ack_rbf.encode();
+		let mut target_value = <Vec<u8>>::from_hex("0202020202020202020202020202020202020202020202020202020202020202").unwrap();
+		if let Some((_, target)) = funding_value_with_hex_target {
+			target_value.push(0x00); // Type
+			target_value.push(target.len() as u8 / 2); // Length
+			target_value.append(&mut <Vec<u8>>::from_hex(target).unwrap()); // Value (i64)
+		}
+		assert_eq!(encoded_value, target_value);
+	}
+
+	#[test]
+	fn encoding_tx_ack_rbf() {
+		do_encoding_tx_ack_rbf(Some((1311768467284833366, "1234567890123456")));
+		do_encoding_tx_ack_rbf(Some((13117684672, "000000030DDFFBC0")));
+		do_encoding_tx_ack_rbf(None);
+	}
+
+	#[test]
+	fn encoding_tx_abort() {
+		let tx_abort = msgs::TxAbort {
+			channel_id: ChannelId::from_bytes([2; 32]),
+			data: <Vec<u8>>::from_hex("54686520717569636B2062726F776E20666F78206A756D7073206F76657220746865206C617A7920646F672E").unwrap(),
+		};
+		let encoded_value = tx_abort.encode();
+		let target_value = <Vec<u8>>::from_hex("0202020202020202020202020202020202020202020202020202020202020202002C54686520717569636B2062726F776E20666F78206A756D7073206F76657220746865206C617A7920646F672E").unwrap();
 		assert_eq!(encoded_value, target_value);
 	}
 
@@ -2488,23 +4002,23 @@ mod tests {
 		let (_, pubkey_1) = get_keys_from!("0101010101010101010101010101010101010101010101010101010101010101", secp_ctx);
 		let script = Builder::new().push_opcode(opcodes::OP_TRUE).into_script();
 		let shutdown = msgs::Shutdown {
-			channel_id: [2; 32],
+			channel_id: ChannelId::from_bytes([2; 32]),
 			scriptpubkey:
-				     if script_type == 1 { Address::p2pkh(&::bitcoin::PublicKey{compressed: true, inner: pubkey_1}, Network::Testnet).script_pubkey() }
+				if script_type == 1 { Address::p2pkh(&::bitcoin::PublicKey{compressed: true, inner: pubkey_1}, Network::Testnet).script_pubkey() }
 				else if script_type == 2 { Address::p2sh(&script, Network::Testnet).unwrap().script_pubkey() }
 				else if script_type == 3 { Address::p2wpkh(&::bitcoin::PublicKey{compressed: true, inner: pubkey_1}, Network::Testnet).unwrap().script_pubkey() }
-				else                     { Address::p2wsh(&script, Network::Testnet).script_pubkey() },
+				else { Address::p2wsh(&script, Network::Testnet).script_pubkey() },
 		};
 		let encoded_value = shutdown.encode();
-		let mut target_value = hex::decode("0202020202020202020202020202020202020202020202020202020202020202").unwrap();
+		let mut target_value = <Vec<u8>>::from_hex("0202020202020202020202020202020202020202020202020202020202020202").unwrap();
 		if script_type == 1 {
-			target_value.append(&mut hex::decode("001976a91479b000887626b294a914501a4cd226b58b23598388ac").unwrap());
+			target_value.append(&mut <Vec<u8>>::from_hex("001976a91479b000887626b294a914501a4cd226b58b23598388ac").unwrap());
 		} else if script_type == 2 {
-			target_value.append(&mut hex::decode("0017a914da1745e9b549bd0bfa1a569971c77eba30cd5a4b87").unwrap());
+			target_value.append(&mut <Vec<u8>>::from_hex("0017a914da1745e9b549bd0bfa1a569971c77eba30cd5a4b87").unwrap());
 		} else if script_type == 3 {
-			target_value.append(&mut hex::decode("0016001479b000887626b294a914501a4cd226b58b235983").unwrap());
+			target_value.append(&mut <Vec<u8>>::from_hex("0016001479b000887626b294a914501a4cd226b58b235983").unwrap());
 		} else if script_type == 4 {
-			target_value.append(&mut hex::decode("002200204ae81572f06e1b88fd5ced7a1a000945432e83e1551e6f721ee9c00b8cc33260").unwrap());
+			target_value.append(&mut <Vec<u8>>::from_hex("002200204ae81572f06e1b88fd5ced7a1a000945432e83e1551e6f721ee9c00b8cc33260").unwrap());
 		}
 		assert_eq!(encoded_value, target_value);
 	}
@@ -2523,18 +4037,18 @@ mod tests {
 		let (privkey_1, _) = get_keys_from!("0101010101010101010101010101010101010101010101010101010101010101", secp_ctx);
 		let sig_1 = get_sig_on!(privkey_1, secp_ctx, String::from("01010101010101010101010101010101"));
 		let closing_signed = msgs::ClosingSigned {
-			channel_id: [2; 32],
+			channel_id: ChannelId::from_bytes([2; 32]),
 			fee_satoshis: 2316138423780173,
 			signature: sig_1,
 			fee_range: None,
 		};
 		let encoded_value = closing_signed.encode();
-		let target_value = hex::decode("020202020202020202020202020202020202020202020202020202020202020200083a840000034dd977cb9b53d93a6ff64bb5f1e158b4094b66e798fb12911168a3ccdf80a83096340a6a95da0ae8d9f776528eecdbb747eb6b545495a4319ed5378e35b21e073a").unwrap();
+		let target_value = <Vec<u8>>::from_hex("020202020202020202020202020202020202020202020202020202020202020200083a840000034dd977cb9b53d93a6ff64bb5f1e158b4094b66e798fb12911168a3ccdf80a83096340a6a95da0ae8d9f776528eecdbb747eb6b545495a4319ed5378e35b21e073a").unwrap();
 		assert_eq!(encoded_value, target_value);
 		assert_eq!(msgs::ClosingSigned::read(&mut Cursor::new(&target_value)).unwrap(), closing_signed);
 
 		let closing_signed_with_range = msgs::ClosingSigned {
-			channel_id: [2; 32],
+			channel_id: ChannelId::from_bytes([2; 32]),
 			fee_satoshis: 2316138423780173,
 			signature: sig_1,
 			fee_range: Some(msgs::ClosingSignedFeeRange {
@@ -2543,7 +4057,7 @@ mod tests {
 			}),
 		};
 		let encoded_value_with_range = closing_signed_with_range.encode();
-		let target_value_with_range = hex::decode("020202020202020202020202020202020202020202020202020202020202020200083a840000034dd977cb9b53d93a6ff64bb5f1e158b4094b66e798fb12911168a3ccdf80a83096340a6a95da0ae8d9f776528eecdbb747eb6b545495a4319ed5378e35b21e073a011000000000deadbeef1badcafe01234567").unwrap();
+		let target_value_with_range = <Vec<u8>>::from_hex("020202020202020202020202020202020202020202020202020202020202020200083a840000034dd977cb9b53d93a6ff64bb5f1e158b4094b66e798fb12911168a3ccdf80a83096340a6a95da0ae8d9f776528eecdbb747eb6b545495a4319ed5378e35b21e073a011000000000deadbeef1badcafe01234567").unwrap();
 		assert_eq!(encoded_value_with_range, target_value_with_range);
 		assert_eq!(msgs::ClosingSigned::read(&mut Cursor::new(&target_value_with_range)).unwrap(),
 			closing_signed_with_range);
@@ -2560,27 +4074,29 @@ mod tests {
 			hmac: [2; 32]
 		};
 		let update_add_htlc = msgs::UpdateAddHTLC {
-			channel_id: [2; 32],
+			channel_id: ChannelId::from_bytes([2; 32]),
 			htlc_id: 2316138423780173,
 			amount_msat: 3608586615801332854,
 			payment_hash: PaymentHash([1; 32]),
 			cltv_expiry: 821716,
-			onion_routing_packet
+			onion_routing_packet,
+			skimmed_fee_msat: None,
+			blinding_point: None,
 		};
 		let encoded_value = update_add_htlc.encode();
-		let target_value = hex::decode("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").unwrap();
+		let target_value = <Vec<u8>>::from_hex("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").unwrap();
 		assert_eq!(encoded_value, target_value);
 	}
 
 	#[test]
 	fn encoding_update_fulfill_htlc() {
 		let update_fulfill_htlc = msgs::UpdateFulfillHTLC {
-			channel_id: [2; 32],
+			channel_id: ChannelId::from_bytes([2; 32]),
 			htlc_id: 2316138423780173,
 			payment_preimage: PaymentPreimage([1; 32]),
 		};
 		let encoded_value = update_fulfill_htlc.encode();
-		let target_value = hex::decode("020202020202020202020202020202020202020202020202020202020202020200083a840000034d0101010101010101010101010101010101010101010101010101010101010101").unwrap();
+		let target_value = <Vec<u8>>::from_hex("020202020202020202020202020202020202020202020202020202020202020200083a840000034d0101010101010101010101010101010101010101010101010101010101010101").unwrap();
 		assert_eq!(encoded_value, target_value);
 	}
 
@@ -2590,25 +4106,25 @@ mod tests {
 			data: [1; 32].to_vec(),
 		};
 		let update_fail_htlc = msgs::UpdateFailHTLC {
-			channel_id: [2; 32],
+			channel_id: ChannelId::from_bytes([2; 32]),
 			htlc_id: 2316138423780173,
 			reason
 		};
 		let encoded_value = update_fail_htlc.encode();
-		let target_value = hex::decode("020202020202020202020202020202020202020202020202020202020202020200083a840000034d00200101010101010101010101010101010101010101010101010101010101010101").unwrap();
+		let target_value = <Vec<u8>>::from_hex("020202020202020202020202020202020202020202020202020202020202020200083a840000034d00200101010101010101010101010101010101010101010101010101010101010101").unwrap();
 		assert_eq!(encoded_value, target_value);
 	}
 
 	#[test]
 	fn encoding_update_fail_malformed_htlc() {
 		let update_fail_malformed_htlc = msgs::UpdateFailMalformedHTLC {
-			channel_id: [2; 32],
+			channel_id: ChannelId::from_bytes([2; 32]),
 			htlc_id: 2316138423780173,
 			sha256_of_onion: [1; 32],
 			failure_code: 255
 		};
 		let encoded_value = update_fail_malformed_htlc.encode();
-		let target_value = hex::decode("020202020202020202020202020202020202020202020202020202020202020200083a840000034d010101010101010101010101010101010101010101010101010101010101010100ff").unwrap();
+		let target_value = <Vec<u8>>::from_hex("020202020202020202020202020202020202020202020202020202020202020200083a840000034d010101010101010101010101010101010101010101010101010101010101010100ff").unwrap();
 		assert_eq!(encoded_value, target_value);
 	}
 
@@ -2623,16 +4139,18 @@ mod tests {
 		let sig_3 = get_sig_on!(privkey_3, secp_ctx, String::from("01010101010101010101010101010101"));
 		let sig_4 = get_sig_on!(privkey_4, secp_ctx, String::from("01010101010101010101010101010101"));
 		let commitment_signed = msgs::CommitmentSigned {
-			channel_id: [2; 32],
+			channel_id: ChannelId::from_bytes([2; 32]),
 			signature: sig_1,
 			htlc_signatures: if htlcs { vec![sig_2, sig_3, sig_4] } else { Vec::new() },
+			#[cfg(taproot)]
+			partial_signature_with_nonce: None,
 		};
 		let encoded_value = commitment_signed.encode();
-		let mut target_value = hex::decode("0202020202020202020202020202020202020202020202020202020202020202d977cb9b53d93a6ff64bb5f1e158b4094b66e798fb12911168a3ccdf80a83096340a6a95da0ae8d9f776528eecdbb747eb6b545495a4319ed5378e35b21e073a").unwrap();
+		let mut target_value = <Vec<u8>>::from_hex("0202020202020202020202020202020202020202020202020202020202020202d977cb9b53d93a6ff64bb5f1e158b4094b66e798fb12911168a3ccdf80a83096340a6a95da0ae8d9f776528eecdbb747eb6b545495a4319ed5378e35b21e073a").unwrap();
 		if htlcs {
-			target_value.append(&mut hex::decode("00031735b6a427e80d5fe7cd90a2f4ee08dc9c27cda7c35a4172e5d85b12c49d4232537e98f9b1f3c5e6989a8b9644e90e8918127680dbd0d4043510840fc0f1e11a216c280b5395a2546e7e4b2663e04f811622f15a4f91e83aa2e92ba2a573c139142c54ae63072a1ec1ee7dc0c04bde5c847806172aa05c92c22ae8e308d1d2692b12cc195ce0a2d1bda6a88befa19fa07f51caa75ce83837f28965600b8aacab0855ffb0e741ec5f7c41421e9829a9d48611c8c831f71be5ea73e66594977ffd").unwrap());
+			target_value.append(&mut <Vec<u8>>::from_hex("00031735b6a427e80d5fe7cd90a2f4ee08dc9c27cda7c35a4172e5d85b12c49d4232537e98f9b1f3c5e6989a8b9644e90e8918127680dbd0d4043510840fc0f1e11a216c280b5395a2546e7e4b2663e04f811622f15a4f91e83aa2e92ba2a573c139142c54ae63072a1ec1ee7dc0c04bde5c847806172aa05c92c22ae8e308d1d2692b12cc195ce0a2d1bda6a88befa19fa07f51caa75ce83837f28965600b8aacab0855ffb0e741ec5f7c41421e9829a9d48611c8c831f71be5ea73e66594977ffd").unwrap());
 		} else {
-			target_value.append(&mut hex::decode("0000").unwrap());
+			target_value.append(&mut <Vec<u8>>::from_hex("0000").unwrap());
 		}
 		assert_eq!(encoded_value, target_value);
 	}
@@ -2648,49 +4166,60 @@ mod tests {
 		let secp_ctx = Secp256k1::new();
 		let (_, pubkey_1) = get_keys_from!("0101010101010101010101010101010101010101010101010101010101010101", secp_ctx);
 		let raa = msgs::RevokeAndACK {
-			channel_id: [2; 32],
+			channel_id: ChannelId::from_bytes([2; 32]),
 			per_commitment_secret: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1],
 			next_per_commitment_point: pubkey_1,
+			#[cfg(taproot)]
+			next_local_nonce: None,
 		};
 		let encoded_value = raa.encode();
-		let target_value = hex::decode("02020202020202020202020202020202020202020202020202020202020202020101010101010101010101010101010101010101010101010101010101010101031b84c5567b126440995d3ed5aaba0565d71e1834604819ff9c17f5e9d5dd078f").unwrap();
+		let target_value = <Vec<u8>>::from_hex("02020202020202020202020202020202020202020202020202020202020202020101010101010101010101010101010101010101010101010101010101010101031b84c5567b126440995d3ed5aaba0565d71e1834604819ff9c17f5e9d5dd078f").unwrap();
 		assert_eq!(encoded_value, target_value);
 	}
 
 	#[test]
 	fn encoding_update_fee() {
 		let update_fee = msgs::UpdateFee {
-			channel_id: [2; 32],
+			channel_id: ChannelId::from_bytes([2; 32]),
 			feerate_per_kw: 20190119,
 		};
 		let encoded_value = update_fee.encode();
-		let target_value = hex::decode("0202020202020202020202020202020202020202020202020202020202020202013413a7").unwrap();
+		let target_value = <Vec<u8>>::from_hex("0202020202020202020202020202020202020202020202020202020202020202013413a7").unwrap();
 		assert_eq!(encoded_value, target_value);
 	}
 
 	#[test]
 	fn encoding_init() {
+		let mainnet_hash = ChainHash::using_genesis_block(Network::Bitcoin);
 		assert_eq!(msgs::Init {
 			features: InitFeatures::from_le_bytes(vec![0xFF, 0xFF, 0xFF]),
+			networks: Some(vec![mainnet_hash]),
 			remote_network_address: None,
-		}.encode(), hex::decode("00023fff0003ffffff").unwrap());
+		}.encode(), <Vec<u8>>::from_hex("00023fff0003ffffff01206fe28c0ab6f1b372c1a6a246ae63f74f931e8365e15a089c68d6190000000000").unwrap());
 		assert_eq!(msgs::Init {
 			features: InitFeatures::from_le_bytes(vec![0xFF]),
+			networks: None,
 			remote_network_address: None,
-		}.encode(), hex::decode("0001ff0001ff").unwrap());
+		}.encode(), <Vec<u8>>::from_hex("0001ff0001ff").unwrap());
 		assert_eq!(msgs::Init {
 			features: InitFeatures::from_le_bytes(vec![]),
+			networks: Some(vec![mainnet_hash]),
 			remote_network_address: None,
-		}.encode(), hex::decode("00000000").unwrap());
-
+		}.encode(), <Vec<u8>>::from_hex("0000000001206fe28c0ab6f1b372c1a6a246ae63f74f931e8365e15a089c68d6190000000000").unwrap());
+		assert_eq!(msgs::Init {
+			features: InitFeatures::from_le_bytes(vec![]),
+			networks: Some(vec![ChainHash::from(&[1; 32]), ChainHash::from(&[2; 32])]),
+			remote_network_address: None,
+		}.encode(), <Vec<u8>>::from_hex("00000000014001010101010101010101010101010101010101010101010101010101010101010202020202020202020202020202020202020202020202020202020202020202").unwrap());
 		let init_msg = msgs::Init { features: InitFeatures::from_le_bytes(vec![]),
-			remote_network_address: Some(msgs::NetAddress::IPv4 {
+			networks: Some(vec![mainnet_hash]),
+			remote_network_address: Some(SocketAddress::TcpIpV4 {
 				addr: [127, 0, 0, 1],
 				port: 1000,
 			}),
 		};
 		let encoded_value = init_msg.encode();
-		let target_value = hex::decode("000000000307017f00000103e8").unwrap();
+		let target_value = <Vec<u8>>::from_hex("0000000001206fe28c0ab6f1b372c1a6a246ae63f74f931e8365e15a089c68d61900000000000307017f00000103e8").unwrap();
 		assert_eq!(encoded_value, target_value);
 		assert_eq!(msgs::Init::read(&mut Cursor::new(&target_value)).unwrap(), init_msg);
 	}
@@ -2698,22 +4227,22 @@ mod tests {
 	#[test]
 	fn encoding_error() {
 		let error = msgs::ErrorMessage {
-			channel_id: [2; 32],
+			channel_id: ChannelId::from_bytes([2; 32]),
 			data: String::from("rust-lightning"),
 		};
 		let encoded_value = error.encode();
-		let target_value = hex::decode("0202020202020202020202020202020202020202020202020202020202020202000e727573742d6c696768746e696e67").unwrap();
+		let target_value = <Vec<u8>>::from_hex("0202020202020202020202020202020202020202020202020202020202020202000e727573742d6c696768746e696e67").unwrap();
 		assert_eq!(encoded_value, target_value);
 	}
 
 	#[test]
 	fn encoding_warning() {
 		let error = msgs::WarningMessage {
-			channel_id: [2; 32],
+			channel_id: ChannelId::from_bytes([2; 32]),
 			data: String::from("rust-lightning"),
 		};
 		let encoded_value = error.encode();
-		let target_value = hex::decode("0202020202020202020202020202020202020202020202020202020202020202000e727573742d6c696768746e696e67").unwrap();
+		let target_value = <Vec<u8>>::from_hex("0202020202020202020202020202020202020202020202020202020202020202000e727573742d6c696768746e696e67").unwrap();
 		assert_eq!(encoded_value, target_value);
 	}
 
@@ -2724,7 +4253,7 @@ mod tests {
 			byteslen: 64
 		};
 		let encoded_value = ping.encode();
-		let target_value = hex::decode("0040004000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000").unwrap();
+		let target_value = <Vec<u8>>::from_hex("0040004000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000").unwrap();
 		assert_eq!(encoded_value, target_value);
 	}
 
@@ -2734,78 +4263,217 @@ mod tests {
 			byteslen: 64
 		};
 		let encoded_value = pong.encode();
-		let target_value = hex::decode("004000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000").unwrap();
+		let target_value = <Vec<u8>>::from_hex("004000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000").unwrap();
 		assert_eq!(encoded_value, target_value);
 	}
 
 	#[test]
 	fn encoding_nonfinal_onion_hop_data() {
-		let mut msg = msgs::OnionHopData {
-			format: OnionHopDataFormat::NonFinalNode {
-				short_channel_id: 0xdeadbeef1bad1dea,
-			},
+		let outbound_msg = msgs::OutboundOnionPayload::Forward {
+			short_channel_id: 0xdeadbeef1bad1dea,
 			amt_to_forward: 0x0badf00d01020304,
 			outgoing_cltv_value: 0xffffffff,
 		};
-		let encoded_value = msg.encode();
-		let target_value = hex::decode("1a02080badf00d010203040404ffffffff0608deadbeef1bad1dea").unwrap();
+		let encoded_value = outbound_msg.encode();
+		let target_value = <Vec<u8>>::from_hex("1a02080badf00d010203040404ffffffff0608deadbeef1bad1dea").unwrap();
 		assert_eq!(encoded_value, target_value);
-		msg = Readable::read(&mut Cursor::new(&target_value[..])).unwrap();
-		if let OnionHopDataFormat::NonFinalNode { short_channel_id } = msg.format {
+
+		let node_signer = test_utils::TestKeysInterface::new(&[42; 32], Network::Testnet);
+		let inbound_msg = ReadableArgs::read(&mut Cursor::new(&target_value[..]), (None, &&node_signer)).unwrap();
+		if let msgs::InboundOnionPayload::Forward {
+			short_channel_id, amt_to_forward, outgoing_cltv_value
+		} = inbound_msg {
 			assert_eq!(short_channel_id, 0xdeadbeef1bad1dea);
+			assert_eq!(amt_to_forward, 0x0badf00d01020304);
+			assert_eq!(outgoing_cltv_value, 0xffffffff);
 		} else { panic!(); }
-		assert_eq!(msg.amt_to_forward, 0x0badf00d01020304);
-		assert_eq!(msg.outgoing_cltv_value, 0xffffffff);
 	}
 
 	#[test]
 	fn encoding_final_onion_hop_data() {
-		let mut msg = msgs::OnionHopData {
-			format: OnionHopDataFormat::FinalNode {
-				payment_data: None,
-				keysend_preimage: None,
-			},
-			amt_to_forward: 0x0badf00d01020304,
-			outgoing_cltv_value: 0xffffffff,
+		let outbound_msg = msgs::OutboundOnionPayload::Receive {
+			payment_data: None,
+			payment_metadata: None,
+			keysend_preimage: None,
+			sender_intended_htlc_amt_msat: 0x0badf00d01020304,
+			cltv_expiry_height: 0xffffffff,
+			custom_tlvs: vec![],
 		};
-		let encoded_value = msg.encode();
-		let target_value = hex::decode("1002080badf00d010203040404ffffffff").unwrap();
+		let encoded_value = outbound_msg.encode();
+		let target_value = <Vec<u8>>::from_hex("1002080badf00d010203040404ffffffff").unwrap();
 		assert_eq!(encoded_value, target_value);
-		msg = Readable::read(&mut Cursor::new(&target_value[..])).unwrap();
-		if let OnionHopDataFormat::FinalNode { payment_data: None, .. } = msg.format { } else { panic!(); }
-		assert_eq!(msg.amt_to_forward, 0x0badf00d01020304);
-		assert_eq!(msg.outgoing_cltv_value, 0xffffffff);
+
+		let node_signer = test_utils::TestKeysInterface::new(&[42; 32], Network::Testnet);
+		let inbound_msg = ReadableArgs::read(&mut Cursor::new(&target_value[..]), (None, &&node_signer)).unwrap();
+		if let msgs::InboundOnionPayload::Receive {
+			payment_data: None, sender_intended_htlc_amt_msat, cltv_expiry_height, ..
+		} = inbound_msg {
+			assert_eq!(sender_intended_htlc_amt_msat, 0x0badf00d01020304);
+			assert_eq!(cltv_expiry_height, 0xffffffff);
+		} else { panic!(); }
 	}
 
 	#[test]
 	fn encoding_final_onion_hop_data_with_secret() {
 		let expected_payment_secret = PaymentSecret([0x42u8; 32]);
-		let mut msg = msgs::OnionHopData {
-			format: OnionHopDataFormat::FinalNode {
-				payment_data: Some(FinalOnionHopData {
-					payment_secret: expected_payment_secret,
-					total_msat: 0x1badca1f
-				}),
-				keysend_preimage: None,
-			},
-			amt_to_forward: 0x0badf00d01020304,
-			outgoing_cltv_value: 0xffffffff,
+		let outbound_msg = msgs::OutboundOnionPayload::Receive {
+			payment_data: Some(FinalOnionHopData {
+				payment_secret: expected_payment_secret,
+				total_msat: 0x1badca1f
+			}),
+			payment_metadata: None,
+			keysend_preimage: None,
+			sender_intended_htlc_amt_msat: 0x0badf00d01020304,
+			cltv_expiry_height: 0xffffffff,
+			custom_tlvs: vec![],
 		};
-		let encoded_value = msg.encode();
-		let target_value = hex::decode("3602080badf00d010203040404ffffffff082442424242424242424242424242424242424242424242424242424242424242421badca1f").unwrap();
+		let encoded_value = outbound_msg.encode();
+		let target_value = <Vec<u8>>::from_hex("3602080badf00d010203040404ffffffff082442424242424242424242424242424242424242424242424242424242424242421badca1f").unwrap();
 		assert_eq!(encoded_value, target_value);
-		msg = Readable::read(&mut Cursor::new(&target_value[..])).unwrap();
-		if let OnionHopDataFormat::FinalNode {
+
+		let node_signer = test_utils::TestKeysInterface::new(&[42; 32], Network::Testnet);
+		let inbound_msg = ReadableArgs::read(&mut Cursor::new(&target_value[..]), (None, &&node_signer)).unwrap();
+		if let msgs::InboundOnionPayload::Receive {
 			payment_data: Some(FinalOnionHopData {
 				payment_secret,
 				total_msat: 0x1badca1f
 			}),
+			sender_intended_htlc_amt_msat, cltv_expiry_height,
+			payment_metadata: None,
 			keysend_preimage: None,
-		} = msg.format {
+			custom_tlvs,
+		} = inbound_msg  {
 			assert_eq!(payment_secret, expected_payment_secret);
+			assert_eq!(sender_intended_htlc_amt_msat, 0x0badf00d01020304);
+			assert_eq!(cltv_expiry_height, 0xffffffff);
+			assert_eq!(custom_tlvs, vec![]);
+		} else { panic!(); }
+	}
+
+	#[test]
+	fn encoding_final_onion_hop_data_with_bad_custom_tlvs() {
+		// If custom TLVs have type number within the range reserved for protocol, treat them as if
+		// they're unknown
+		let bad_type_range_tlvs = vec![
+			((1 << 16) - 4, vec![42]),
+			((1 << 16) - 2, vec![42; 32]),
+		];
+		let mut msg = msgs::OutboundOnionPayload::Receive {
+			payment_data: None,
+			payment_metadata: None,
+			keysend_preimage: None,
+			custom_tlvs: bad_type_range_tlvs,
+			sender_intended_htlc_amt_msat: 0x0badf00d01020304,
+			cltv_expiry_height: 0xffffffff,
+		};
+		let encoded_value = msg.encode();
+		let node_signer = test_utils::TestKeysInterface::new(&[42; 32], Network::Testnet);
+		assert!(msgs::InboundOnionPayload::read(&mut Cursor::new(&encoded_value[..]), (None, &&node_signer)).is_err());
+		let good_type_range_tlvs = vec![
+			((1 << 16) - 3, vec![42]),
+			((1 << 16) - 1, vec![42; 32]),
+		];
+		if let msgs::OutboundOnionPayload::Receive { ref mut custom_tlvs, .. } = msg {
+			*custom_tlvs = good_type_range_tlvs.clone();
+		}
+		let encoded_value = msg.encode();
+		let inbound_msg = ReadableArgs::read(&mut Cursor::new(&encoded_value[..]), (None, &&node_signer)).unwrap();
+		match inbound_msg {
+			msgs::InboundOnionPayload::Receive { custom_tlvs, .. } => assert!(custom_tlvs.is_empty()),
+			_ => panic!(),
+		}
+	}
+
+	#[test]
+	fn encoding_final_onion_hop_data_with_custom_tlvs() {
+		let expected_custom_tlvs = vec![
+			(5482373483, vec![0x12, 0x34]),
+			(5482373487, vec![0x42u8; 8]),
+		];
+		let msg = msgs::OutboundOnionPayload::Receive {
+			payment_data: None,
+			payment_metadata: None,
+			keysend_preimage: None,
+			custom_tlvs: expected_custom_tlvs.clone(),
+			sender_intended_htlc_amt_msat: 0x0badf00d01020304,
+			cltv_expiry_height: 0xffffffff,
+		};
+		let encoded_value = msg.encode();
+		let target_value = <Vec<u8>>::from_hex("2e02080badf00d010203040404ffffffffff0000000146c6616b021234ff0000000146c6616f084242424242424242").unwrap();
+		assert_eq!(encoded_value, target_value);
+		let node_signer = test_utils::TestKeysInterface::new(&[42; 32], Network::Testnet);
+		let inbound_msg: msgs::InboundOnionPayload = ReadableArgs::read(&mut Cursor::new(&target_value[..]), (None, &&node_signer)).unwrap();
+		if let msgs::InboundOnionPayload::Receive {
+			payment_data: None,
+			payment_metadata: None,
+			keysend_preimage: None,
+			custom_tlvs,
+			sender_intended_htlc_amt_msat,
+			cltv_expiry_height: outgoing_cltv_value,
+			..
+		} = inbound_msg {
+			assert_eq!(custom_tlvs, expected_custom_tlvs);
+			assert_eq!(sender_intended_htlc_amt_msat, 0x0badf00d01020304);
+			assert_eq!(outgoing_cltv_value, 0xffffffff);
 		} else { panic!(); }
-		assert_eq!(msg.amt_to_forward, 0x0badf00d01020304);
-		assert_eq!(msg.outgoing_cltv_value, 0xffffffff);
+	}
+
+	#[test]
+	fn encoding_final_onion_hop_data_with_trampoline_packet() {
+		let secp_ctx = Secp256k1::new();
+		let (_private_key, public_key) = get_keys_from!("0101010101010101010101010101010101010101010101010101010101010101", secp_ctx);
+
+		let compressed_public_key = public_key.serialize();
+		assert_eq!(compressed_public_key.len(), 33);
+
+		let trampoline_packet = TrampolineOnionPacket {
+			version: 0,
+			public_key,
+			hop_data: vec![1; 650], // this should be the standard encoded length
+			hmac: [2; 32],
+		};
+		let encoded_trampoline_packet = trampoline_packet.encode();
+		assert_eq!(encoded_trampoline_packet.len(), 716);
+
+		let msg = msgs::OutboundOnionPayload::TrampolineEntrypoint {
+			multipath_trampoline_data: None,
+			amt_to_forward: 0x0badf00d01020304,
+			outgoing_cltv_value: 0xffffffff,
+			trampoline_packet,
+		};
+		let encoded_payload = msg.encode();
+
+		let trampoline_type_bytes = &encoded_payload[19..=19];
+		let mut trampoline_type_cursor = Cursor::new(trampoline_type_bytes);
+		let trampoline_type_big_size: BigSize = Readable::read(&mut trampoline_type_cursor).unwrap();
+		assert_eq!(trampoline_type_big_size.0, 20);
+
+		let trampoline_length_bytes = &encoded_payload[20..=22];
+		let mut trampoline_length_cursor = Cursor::new(trampoline_length_bytes);
+		let trampoline_length_big_size: BigSize = Readable::read(&mut trampoline_length_cursor).unwrap();
+		assert_eq!(trampoline_length_big_size.0, encoded_trampoline_packet.len() as u64);
+	}
+
+	#[test]
+	fn encoding_final_onion_hop_data_with_eclair_trampoline_packet() {
+		let public_key = PublicKey::from_slice(&<Vec<u8>>::from_hex("02eec7245d6b7d2ccb30380bfbe2a3648cd7a942653f5aa340edcea1f283686619").unwrap()).unwrap();
+		let hop_data = <Vec<u8>>::from_hex("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").unwrap();
+		let hmac_vector = <Vec<u8>>::from_hex("bb079bfc4b35190eee9f59a1d7b41ba2f773179f322dafb4b1af900c289ebd6c").unwrap();
+		let mut hmac = [0; 32];
+		hmac.copy_from_slice(&hmac_vector);
+
+		let compressed_public_key = public_key.serialize();
+		assert_eq!(compressed_public_key.len(), 33);
+
+		let trampoline_packet = TrampolineOnionPacket {
+			version: 0,
+			public_key,
+			hop_data,
+			hmac,
+		};
+		let encoded_trampoline_packet = trampoline_packet.encode();
+		let expected_eclair_trampoline_packet = <Vec<u8>>::from_hex("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").unwrap();
+		assert_eq!(encoded_trampoline_packet, expected_eclair_trampoline_packet);
 	}
 
 	#[test]
@@ -2818,7 +4486,7 @@ mod tests {
 
 		for (first_blocknum, number_of_blocks, expected) in tests.into_iter() {
 			let sut = msgs::QueryChannelRange {
-				chain_hash: BlockHash::from_hex("06226e46111a0b59caaf126043eb5bbf28c34f3a5e332a1fc7b2b73cf188910f").unwrap(),
+				chain_hash: ChainHash::using_genesis_block(Network::Regtest),
 				first_blocknum,
 				number_of_blocks,
 			};
@@ -2829,12 +4497,12 @@ mod tests {
 	#[test]
 	fn encoding_query_channel_range() {
 		let mut query_channel_range = msgs::QueryChannelRange {
-			chain_hash: BlockHash::from_hex("06226e46111a0b59caaf126043eb5bbf28c34f3a5e332a1fc7b2b73cf188910f").unwrap(),
+			chain_hash: ChainHash::using_genesis_block(Network::Regtest),
 			first_blocknum: 100000,
 			number_of_blocks: 1500,
 		};
 		let encoded_value = query_channel_range.encode();
-		let target_value = hex::decode("0f9188f13cb7b2c71f2a335e3a4fc328bf5beb436012afca590b1a11466e2206000186a0000005dc").unwrap();
+		let target_value = <Vec<u8>>::from_hex("06226e46111a0b59caaf126043eb5bbf28c34f3a5e332a1fc7b2b73cf188910f000186a0000005dc").unwrap();
 		assert_eq!(encoded_value, target_value);
 
 		query_channel_range = Readable::read(&mut Cursor::new(&target_value[..])).unwrap();
@@ -2849,8 +4517,8 @@ mod tests {
 	}
 
 	fn do_encoding_reply_channel_range(encoding_type: u8) {
-		let mut target_value = hex::decode("0f9188f13cb7b2c71f2a335e3a4fc328bf5beb436012afca590b1a11466e2206000b8a06000005dc01").unwrap();
-		let expected_chain_hash = BlockHash::from_hex("06226e46111a0b59caaf126043eb5bbf28c34f3a5e332a1fc7b2b73cf188910f").unwrap();
+		let mut target_value = <Vec<u8>>::from_hex("06226e46111a0b59caaf126043eb5bbf28c34f3a5e332a1fc7b2b73cf188910f000b8a06000005dc01").unwrap();
+		let expected_chain_hash = ChainHash::using_genesis_block(Network::Regtest);
 		let mut reply_channel_range = msgs::ReplyChannelRange {
 			chain_hash: expected_chain_hash,
 			first_blocknum: 756230,
@@ -2860,7 +4528,7 @@ mod tests {
 		};
 
 		if encoding_type == 0 {
-			target_value.append(&mut hex::decode("001900000000000000008e0000000000003c69000000000045a6c4").unwrap());
+			target_value.append(&mut <Vec<u8>>::from_hex("001900000000000000008e0000000000003c69000000000045a6c4").unwrap());
 			let encoded_value = reply_channel_range.encode();
 			assert_eq!(encoded_value, target_value);
 
@@ -2873,7 +4541,7 @@ mod tests {
 			assert_eq!(reply_channel_range.short_channel_ids[1], 0x0000000000003c69);
 			assert_eq!(reply_channel_range.short_channel_ids[2], 0x000000000045a6c4);
 		} else {
-			target_value.append(&mut hex::decode("001601789c636000833e08659309a65878be010010a9023a").unwrap());
+			target_value.append(&mut <Vec<u8>>::from_hex("001601789c636000833e08659309a65878be010010a9023a").unwrap());
 			let result: Result<msgs::ReplyChannelRange, msgs::DecodeError> = Readable::read(&mut Cursor::new(&target_value[..]));
 			assert!(result.is_err(), "Expected decode failure with unsupported zlib encoding");
 		}
@@ -2886,15 +4554,15 @@ mod tests {
 	}
 
 	fn do_encoding_query_short_channel_ids(encoding_type: u8) {
-		let mut target_value = hex::decode("0f9188f13cb7b2c71f2a335e3a4fc328bf5beb436012afca590b1a11466e2206").unwrap();
-		let expected_chain_hash = BlockHash::from_hex("06226e46111a0b59caaf126043eb5bbf28c34f3a5e332a1fc7b2b73cf188910f").unwrap();
+		let mut target_value = <Vec<u8>>::from_hex("06226e46111a0b59caaf126043eb5bbf28c34f3a5e332a1fc7b2b73cf188910f").unwrap();
+		let expected_chain_hash = ChainHash::using_genesis_block(Network::Regtest);
 		let mut query_short_channel_ids = msgs::QueryShortChannelIds {
 			chain_hash: expected_chain_hash,
 			short_channel_ids: vec![0x0000000000008e, 0x0000000000003c69, 0x000000000045a6c4],
 		};
 
 		if encoding_type == 0 {
-			target_value.append(&mut hex::decode("001900000000000000008e0000000000003c69000000000045a6c4").unwrap());
+			target_value.append(&mut <Vec<u8>>::from_hex("001900000000000000008e0000000000003c69000000000045a6c4").unwrap());
 			let encoded_value = query_short_channel_ids.encode();
 			assert_eq!(encoded_value, target_value);
 
@@ -2904,7 +4572,7 @@ mod tests {
 			assert_eq!(query_short_channel_ids.short_channel_ids[1], 0x0000000000003c69);
 			assert_eq!(query_short_channel_ids.short_channel_ids[2], 0x000000000045a6c4);
 		} else {
-			target_value.append(&mut hex::decode("001601789c636000833e08659309a65878be010010a9023a").unwrap());
+			target_value.append(&mut <Vec<u8>>::from_hex("001601789c636000833e08659309a65878be010010a9023a").unwrap());
 			let result: Result<msgs::QueryShortChannelIds, msgs::DecodeError> = Readable::read(&mut Cursor::new(&target_value[..]));
 			assert!(result.is_err(), "Expected decode failure with unsupported zlib encoding");
 		}
@@ -2912,13 +4580,13 @@ mod tests {
 
 	#[test]
 	fn encoding_reply_short_channel_ids_end() {
-		let expected_chain_hash = BlockHash::from_hex("06226e46111a0b59caaf126043eb5bbf28c34f3a5e332a1fc7b2b73cf188910f").unwrap();
+		let expected_chain_hash = ChainHash::using_genesis_block(Network::Regtest);
 		let mut reply_short_channel_ids_end = msgs::ReplyShortChannelIdsEnd {
 			chain_hash: expected_chain_hash,
 			full_information: true,
 		};
 		let encoded_value = reply_short_channel_ids_end.encode();
-		let target_value = hex::decode("0f9188f13cb7b2c71f2a335e3a4fc328bf5beb436012afca590b1a11466e220601").unwrap();
+		let target_value = <Vec<u8>>::from_hex("06226e46111a0b59caaf126043eb5bbf28c34f3a5e332a1fc7b2b73cf188910f01").unwrap();
 		assert_eq!(encoded_value, target_value);
 
 		reply_short_channel_ids_end = Readable::read(&mut Cursor::new(&target_value[..])).unwrap();
@@ -2928,14 +4596,14 @@ mod tests {
 
 	#[test]
 	fn encoding_gossip_timestamp_filter(){
-		let expected_chain_hash = BlockHash::from_hex("06226e46111a0b59caaf126043eb5bbf28c34f3a5e332a1fc7b2b73cf188910f").unwrap();
+		let expected_chain_hash = ChainHash::using_genesis_block(Network::Regtest);
 		let mut gossip_timestamp_filter = msgs::GossipTimestampFilter {
 			chain_hash: expected_chain_hash,
 			first_timestamp: 1590000000,
 			timestamp_range: 0xffff_ffff,
 		};
 		let encoded_value = gossip_timestamp_filter.encode();
-		let target_value = hex::decode("0f9188f13cb7b2c71f2a335e3a4fc328bf5beb436012afca590b1a11466e22065ec57980ffffffff").unwrap();
+		let target_value = <Vec<u8>>::from_hex("06226e46111a0b59caaf126043eb5bbf28c34f3a5e332a1fc7b2b73cf188910f5ec57980ffffffff").unwrap();
 		assert_eq!(encoded_value, target_value);
 
 		gossip_timestamp_filter = Readable::read(&mut Cursor::new(&target_value[..])).unwrap();
@@ -2955,28 +4623,99 @@ mod tests {
 		// payload length to be encoded over multiple bytes rather than a single u8.
 		let big_payload = encode_big_payload().unwrap();
 		let mut rd = Cursor::new(&big_payload[..]);
-		<msgs::OnionHopData as Readable>::read(&mut rd).unwrap();
+
+		let node_signer = test_utils::TestKeysInterface::new(&[42; 32], Network::Testnet);
+		<msgs::InboundOnionPayload as ReadableArgs<(Option<PublicKey>, &&test_utils::TestKeysInterface)>>
+			::read(&mut rd, (None, &&node_signer)).unwrap();
 	}
 	// see above test, needs to be a separate method for use of the serialization macros.
 	fn encode_big_payload() -> Result<Vec<u8>, io::Error> {
 		use crate::util::ser::HighZeroBytesDroppedBigSize;
-		let payload = msgs::OnionHopData {
-			format: OnionHopDataFormat::NonFinalNode {
-				short_channel_id: 0xdeadbeef1bad1dea,
-			},
+		let payload = msgs::OutboundOnionPayload::Forward {
+			short_channel_id: 0xdeadbeef1bad1dea,
 			amt_to_forward: 1000,
 			outgoing_cltv_value: 0xffffffff,
 		};
 		let mut encoded_payload = Vec::new();
 		let test_bytes = vec![42u8; 1000];
-		if let OnionHopDataFormat::NonFinalNode { short_channel_id } = payload.format {
+		if let msgs::OutboundOnionPayload::Forward { short_channel_id, amt_to_forward, outgoing_cltv_value } = payload {
 			_encode_varint_length_prefixed_tlv!(&mut encoded_payload, {
-				(1, test_bytes, vec_type),
-				(2, HighZeroBytesDroppedBigSize(payload.amt_to_forward), required),
-				(4, HighZeroBytesDroppedBigSize(payload.outgoing_cltv_value), required),
+				(1, test_bytes, required_vec),
+				(2, HighZeroBytesDroppedBigSize(amt_to_forward), required),
+				(4, HighZeroBytesDroppedBigSize(outgoing_cltv_value), required),
 				(6, short_channel_id, required)
 			});
 		}
 		Ok(encoded_payload)
 	}
+
+	#[test]
+	#[cfg(feature = "std")]
+	fn test_socket_address_from_str() {
+		let tcpip_v4 = SocketAddress::TcpIpV4 {
+			addr: Ipv4Addr::new(127, 0, 0, 1).octets(),
+			port: 1234,
+		};
+		assert_eq!(tcpip_v4, SocketAddress::from_str("127.0.0.1:1234").unwrap());
+		assert_eq!(tcpip_v4, SocketAddress::from_str(&tcpip_v4.to_string()).unwrap());
+
+		let tcpip_v6 = SocketAddress::TcpIpV6 {
+			addr: Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0, 1).octets(),
+			port: 1234,
+		};
+		assert_eq!(tcpip_v6, SocketAddress::from_str("[0:0:0:0:0:0:0:1]:1234").unwrap());
+		assert_eq!(tcpip_v6, SocketAddress::from_str(&tcpip_v6.to_string()).unwrap());
+
+		let hostname = SocketAddress::Hostname {
+				hostname: Hostname::try_from("lightning-node.mydomain.com".to_string()).unwrap(),
+				port: 1234,
+		};
+		assert_eq!(hostname, SocketAddress::from_str("lightning-node.mydomain.com:1234").unwrap());
+		assert_eq!(hostname, SocketAddress::from_str(&hostname.to_string()).unwrap());
+
+		let onion_v2 = SocketAddress::OnionV2 ([40, 4, 64, 185, 202, 19, 162, 75, 90, 200, 38, 7],);
+		assert_eq!("OnionV2([40, 4, 64, 185, 202, 19, 162, 75, 90, 200, 38, 7])", &onion_v2.to_string());
+		assert_eq!(Err(SocketAddressParseError::InvalidOnionV3), SocketAddress::from_str("FACEBOOKCOREWWWI.onion:9735"));
+
+		let onion_v3 = SocketAddress::OnionV3 {
+			ed25519_pubkey: [37, 24, 75, 5, 25, 73, 117, 194, 139, 102, 182, 107, 4, 105, 247, 246, 85,
+			111, 177, 172, 49, 137, 167, 155, 64, 221, 163, 47, 31, 33, 71, 3],
+			checksum: 48326,
+			version: 121,
+			port: 1234
+		};
+		assert_eq!(onion_v3, SocketAddress::from_str("pg6mmjiyjmcrsslvykfwnntlaru7p5svn6y2ymmju6nubxndf4pscryd.onion:1234").unwrap());
+		assert_eq!(onion_v3, SocketAddress::from_str(&onion_v3.to_string()).unwrap());
+
+		assert_eq!(Err(SocketAddressParseError::InvalidOnionV3), SocketAddress::from_str("pg6mmjiyjmcrsslvykfwnntlaru7p5svn6.onion:1234"));
+		assert_eq!(Err(SocketAddressParseError::InvalidInput), SocketAddress::from_str("127.0.0.1@1234"));
+		assert_eq!(Err(SocketAddressParseError::InvalidInput), "".parse::<SocketAddress>());
+		assert!(SocketAddress::from_str("pg6mmjiyjmcrsslvykfwnntlaru7p5svn6y2ymmju6nubxndf4pscryd.onion.onion:9735:94").is_err());
+		assert!(SocketAddress::from_str("wrong$%#.com:1234").is_err());
+		assert_eq!(Err(SocketAddressParseError::InvalidPort), SocketAddress::from_str("example.com:wrong"));
+		assert!("localhost".parse::<SocketAddress>().is_err());
+		assert!("localhost:invalid-port".parse::<SocketAddress>().is_err());
+		assert!( "invalid-onion-v3-hostname.onion:8080".parse::<SocketAddress>().is_err());
+		assert!("b32.example.onion:invalid-port".parse::<SocketAddress>().is_err());
+		assert!("invalid-address".parse::<SocketAddress>().is_err());
+		assert!(SocketAddress::from_str("pg6mmjiyjmcrsslvykfwnntlaru7p5svn6y2ymmju6nubxndf4pscryd.onion.onion:1234").is_err());
+	}
+
+	#[test]
+	#[cfg(feature = "std")]
+	fn test_socket_address_to_socket_addrs() {
+		assert_eq!(SocketAddress::TcpIpV4 {addr:[0u8; 4], port: 1337,}.to_socket_addrs().unwrap().next().unwrap(),
+				   SocketAddr::V4(SocketAddrV4::new(Ipv4Addr::new(0,0,0,0), 1337)));
+		assert_eq!(SocketAddress::TcpIpV6 {addr:[0u8; 16], port: 1337,}.to_socket_addrs().unwrap().next().unwrap(),
+				   SocketAddr::V6(SocketAddrV6::new(Ipv6Addr::from([0u8; 16]), 1337, 0, 0)));
+		assert_eq!(SocketAddress::Hostname { hostname: Hostname::try_from("0.0.0.0".to_string()).unwrap(), port: 0 }
+					   .to_socket_addrs().unwrap().next().unwrap(), SocketAddr::V4(SocketAddrV4::new(Ipv4Addr::from([0u8; 4]),0)));
+		assert!(SocketAddress::OnionV2([0u8; 12]).to_socket_addrs().is_err());
+		assert!(SocketAddress::OnionV3{ ed25519_pubkey: [37, 24, 75, 5, 25, 73, 117, 194, 139, 102,
+			182, 107, 4, 105, 247, 246, 85, 111, 177, 172, 49, 137, 167, 155, 64, 221, 163, 47, 31,
+			33, 71, 3],
+			checksum: 48326,
+			version: 121,
+			port: 1234 }.to_socket_addrs().is_err());
+	}
 }