v0.0.110

0.0.110 - 2022-07-26

API Updates
===========

 * `ChannelManager::send_probe` and `Score::probe_{failed,successful}` have
   been added to make probing more explicit, as well as new
   `Event::Probe{Failed,Successful}` events (#1567).
 * `ProbabilisticScoringParameters::banned_nodes` has been renamed
   `manual_node_penalties` and changed to take msat penalties (#1592).
 * Per-payment tracking of failed paths was added to enable configuration of
   `ProbabilisticScoringParameters::considered_impossible_penalty_msat` (#1600)
 * `ProbabilisticScoringParameters::base_penalty_amount_multiplier_msat` was
   added to allow a penalty that is only amount-dependent (#1617).
 * `ProbabilisticScoringParameters::amount_penalty_multiplier_msat` was renamed
   `liquidity_penalty_amount_multiplier_msat` (#1617).
 * A new `Event::HTLCHandlingFailed` has been added which provides visibility
   into failures to forward/claim accepted HTLCs (#1403).
 * Support has been added for DNS hostnames in the `NetAddress` type, see
   [BOLT PR #911](https://github.com/lightning/bolts/pull/911) (#1553).
 * `GossipSync` now has `rapid`, `p2p`, and `none` constructors (#1618).
 * `lightning-net-tokio` no longer requires types to be in `Arc`s (#1623).
 * The `htlc_maximum_msat` field is now required in `ChannelUpdate` gossip
   messages. In tests this rejects < 1% of channels (#1519).
 * `ReadOnlyNetworkGraph::{channel,node}` have been added to query for
   individual channel/node data, primarily for bindings users (#1543).
 * `FeeEstimator` implementations are now wrapped internally to ensure values
   below 253 sats/kW are never used (#1552).
 * Route selection no longer attempts to randomize path selection. This is
   unlikely to lead to a material change in the paths selected (#1610).

Bug Fixes
=========

 * Fixed a panic when deserializing `ChannelDetails` objects (#1588).
 * When routing, channels are no longer fully saturated before MPP splits are
   generated, instead a configuration knob was added as
   `PaymentParameters::max_channel_saturation_power_of_half` (#1605).
 * Fixed a panic which occurred in `ProbabilisticScorer` when wallclock time
   goes backwards across a restart (#1603).

Serialization Compatibility
===========================

 * All new fields are ignored by prior versions of LDK. All new fields are not
   present when reading objects serialized by prior versions of LDK.
 * Channel information written in the `NetworkGraph` which is missing
   `htlc_maximum_msat` may be dropped on deserialization (#1519).
 * Similarly, node information written in the `NetworkGraph` which contains an
   invalid hostname may be dropped on deserialization (#1519).

In total, this release features 79 files changed, 2935 insertions, 1363
deletions in 52 commits from 9 authors, in alphabetical order:
 * Duncan Dean
 * Elias Rohrer
 * Jeffrey Czyz
 * Matt Corallo
 * Max Fang
 * Viktor Tigerström
 * Willem Van Lint
 * Wilmer Paulino
 * jurvis
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