Was tendermint/tendermint#9428

The primary focus of the v0.38 release will be rolling out ABCI++ vote extensions and FinalizeBlock functionality.

• ABCI++ vote extensions & FinalizeBlock #12
  • We need to improve our QA process during Q4 in order to reduce the amount of manual work involved
• mempool/p2p: Research implications of peer disconnect based on ResponseCheckTx #66
• mempool: Deprecate (v0.37.1) and/or remove (v0.38.0?) the priority mempool #39
• Prepare v0.38.x backport branch #595
• Cut first alpha release
• Cut release candidate
• docs: Enable build for v0.38.x branch
• Execute on the v0.38 release QA plan and capture the results #31
  • Capture v0.37 baseline metrics (Optional, to do only if existing v0.37 metrics can't be reused)
  • qa: Capture v0.38 pre-release metrics
  • Validate that there's no meaningful, substantial regression from v0.37 to v0.38
• Execute on the QA plan for integration with the Cosmos SDK
• Cut final v0.38.0 release
• Either remove priority mempool or forward port the PR associated to mempool: Deprecate (v0.37.1) and/or remove (v0.38.0?) the priority mempool #39 to main and v0.38.x (if exists)
• kvindexer: porting event sequences and slash parsing to main #423
• kvindexer: Remove event type from block event #571

Deprioritised from this release:

• Operators should have more control over bandwidth consumption
  • Investigate where Tendermint bandwidth is being consumed (perhaps capture this in an RFC as an articulation of the problem space)
  • Find short-term wins/low-hanging fruit where bandwidth consumption can be reduced (ideally in Q4 of 2022)
• Monitoring/logging improvements #54