extract from upstream release notes:
- bug has been fixed where the responder of a zero-conf channel could forget
about the channel after a hard-coded 2016 blocks
- bug where LND wouldn't send a ChannelUpdate during a channel open has been fixed
- bug has been fixed that caused fee estimation to be incorrect for taproot
inputs when using the SendOutputs call
- bug has been fixed that could cause lnd to underpay for co-op close transaction
when or both of the outputs used a P2TR address
all details are here:
https://github.com/lightningnetwork/lnd/releases/tag/v0.15.3-beta