# Release Notes

## Peer to Peer Protocol

Scripts received as part of an upfront shutdown script [are now properly
sanitized](https://github.com/lightningnetwork/lnd/pull/5369) to ensure
widespread relay of potential cooperative channel closures.

## RPC Server

[The `Shutdown` command will now return an
error](https://github.com/lightningnetwork/lnd/pull/5364) if one attempts to
call the command while `lnd` is rescanning.

New clients connecting/disconnecting to the transaction subscription stream
[are now logged](https://github.com/lightningnetwork/lnd/pull/5358).

[The `MinConfs` param is now properly examined if the `SendAll` param is
set](https://github.com/lightningnetwork/lnd/pull/5200) for the `SendCoins` RPC
call.

## Integration Test Improvements

[A bug has been fixed in the `testChannelForceClosure`
test](https://github.com/lightningnetwork/lnd/pull/5348) that would cause the
test to assert the wrong balance (the miner fee wasn't accounted for).

## Forwarding Optimizations

[Decoding onion blobs is now done in
parallel](https://github.com/lightningnetwork/lnd/pull/5248) when decoding the
routing information for several HTLCs as once.

## Build System

The [`monitoring` build tag is now on by
default](https://github.com/lightningnetwork/lnd/pull/5399) for all routine
builds.

## Deadline Aware in Anchor Sweeping
Anchor sweeping is now [deadline
aware](https://github.com/lightningnetwork/lnd/pull/5148). Previously, all
anchor sweepings use a default conf target of 6, which is likely to cause
overpaying miner fees since the CLTV values of the HTLCs are far in the future.
Brought by this update, the anchor sweeping (particularly local force close)
will construct a deadline from its set of HTLCs, and use it as the conf target
when estimating miner fees. The previous default conf target 6 is now changed
to 144, and it's only used when there are no eligible HTLCs for deadline
construction.

## Bug Fixes

An optimization intended to speed up the payment critical path by
eliminating an extra RPC call [has been
reverted](https://github.com/lightningnetwork/lnd/pull/5404) as it
introduced a regression that would cause payment failure due to mismatching
heights.

# Contributors (Alphabetical Order)