# Unreleased Changes ## v0.34.0-rc6 Special thanks to external contributors on this release: Friendly reminder, we have a [bug bounty program](https://hackerone.com/tendermint). ### BREAKING CHANGES - CLI/RPC/Config - Apps - P2P Protocol - Go API - Blockchain Protocol ### FEATURES ### IMPROVEMENTS - [statesync] \#5516 Check that all heights necessary to rebuild state for a snapshot exist before adding the snapshot to the pool. (@erikgrinaker) ### BUG FIXES - [blockchain/v2] \#5499 Fix "duplicate block enqueued by processor" panic (@melekes) - [abci/grpc] \#5520 Return async responses in order, to avoid mempool panics. (@erikgrinaker) - [blockchain/v2] \#5530 Fix "processed height 4541 but expected height 4540" panic (@melekes) - [consensus/wal] Fix WAL autorepair by opening target WAL in read/write mode (@erikgrinaker)