tendermint/CHANGELOG_PENDING.md

Pending

Special thanks to external contributors on this release: @scriptionist, @bradyjoestar, @WALL-E

This release is mostly about the ConsensusParams - removing fields and enforcing MaxGas. It also addresses some issues found via security audit, removes various unused functions from libs/common, and implements ADR-012.

Friendly reminder, we have a bug bounty program.

BREAKING CHANGES:

• CLI/RPC/Config

  • [rpc] #2391 /status result.node_info.other became a map
  • [types] #2364 Remove TxSize and BlockGossip from ConsensusParams
    • Maximum tx size is now set implicitly via the BlockSize.MaxBytes
    • The size of block parts in the consensus is now fixed to 64kB

• Apps

  • [mempool] #2360 Mempool tracks the ResponseCheckTx.GasWanted and enforces ConsensusParams.BlockSize.MaxGas on proposals.

• Go API

  • [libs/common] #2431 Remove Word256 due to lack of use
  • [libs/common] #2452 Remove the following functions due to lack of use:
    • byteslice.go: cmn.IsZeros, cmn.RightPadBytes, cmn.LeftPadBytes, cmn.PrefixEndBytes
    • strings.go: cmn.IsHex, cmn.StripHex
    • int.go: Uint64Slice, all put/get int64 methods

FEATURES:

• [rpc] #2415 New /consensus_params?height=X endpoint to query the consensus params at any height (@scriptonist)
• [types] #1714 Add Address to GenesisValidator
• [metrics] #2337 consensus.block_interval_metrics is now gauge, not histogram (you will be able to see spikes, if any)

IMPROVEMENTS:

• [libs/db] #2371 Output error instead of panic when the given db_backend is not initialised (@bradyjoestar)

• [libs] #2286 Enforce 0600 permissions on autofile and db/fsdb

• [mempool] #2399 Make mempool cache a proper LRU (@bradyjoestar)

• [p2p] #2126 Introduce PeerTransport interface to improve isolation of concerns

• [libs/common] #2326 Service returns ErrNotStarted

BUG FIXES:

• [node] #2294 Delay starting node until Genesis time
• [consensus] #2048 Correct peer statistics for marking peer as good
• [rpc] #2460 StartHTTPAndTLSServer() now passes StartTLS() errors back to the caller rather than hanging forever.
• [p2p] #2047 Accept new connections asynchronously
• [tm-bench] #2410 Enforce minimum transaction size (@WALL-E)