# Release Notes ## RPC Server [Return payment address and add index from addholdinvoice call](https://github.com/lightningnetwork/lnd/pull/5533). # Build System [A new pre-submit check has been added](https://github.com/lightningnetwork/lnd/pull/5520) to ensure that all PRs ([aside from merge commits](https://github.com/lightningnetwork/lnd/pull/5543)) add an entry in the release notes folder that at leasts links to PR being added. # Misc * The direct use of certain syscalls in packages such as `bbolt` or `lnd`'s own `healthcheck` package made it impossible to import `lnd` code as a library into projects that are compiled to WASM binaries. [That problem was fixed by guarding those syscalls with build tags](https://github.com/lightningnetwork/lnd/pull/5526). # Code Health ## Code cleanup, refactor, typo fixes * [Unused error check removed](https://github.com/lightningnetwork/lnd/pull/5537). * [Shorten Pull Request check list by referring to the CI checks that are in place](https://github.com/lightningnetwork/lnd/pull/5545). * [Added minor fixes to contribution guidelines](https://github.com/lightningnetwork/lnd/pull/5503). ## Database * [Ensure single writer for legacy code](https://github.com/lightningnetwork/lnd/pull/5547) when using etcd backend. [Optimized payment sequence generation](https://github.com/lightningnetwork/lnd/pull/5514/) to make LNDs payment throughput (and latency) with better when using etcd. # Contributors (Alphabetical Order) * ErikEk * Zero-1729 * Oliver Gugger