--- /dev/null
+## Backwards Compat
+
+* Forwarding less than the expected amount in `ChannelManager::forward_intercepted_htlc` may break
+ compatibility with versions of LDK prior to 0.0.116
+* Setting `ChannelConfig::accept_underpaying_htlcs` may break compatibility with versions of LDK
+ prior to 0.0.116, and unsetting the feature between restarts may lead to payment failures.