tendermint/CHANGELOG_PENDING.md

Unreleased Changes

Friendly reminder: We have a bug bounty program.

vX.X

Month, DD, YYYY

Special thanks to external contributors on this release:

BREAKING CHANGES

• CLI/RPC/Config

  • [rpc] #7121 Remove the deprecated gRPC interface to the RPC service. (@creachadair)
  • [blocksync] #7159 Remove support for disabling blocksync in any circumstance. (@tychoish)
  • [mempool] #7171 Remove legacy mempool implementation. (@tychoish)
  • [rpc] #7575 Rework how RPC responses are written back via HTTP. (@creachadair)
  • [rpc] #7713 Remove unused options for websocket clients. (@creachadair)
  • [config] #7930 Add new event subscription options and defaults. (@creachadair)
  • [rpc] #7982 Add new Events interface and deprecate Subscribe. (@creachadair)
  • [cli] #8081 make the reset command safe to use by intoducing reset-state command. Fixed by #8259. (@marbar3778, @cmwaters)
  • [config] #8222 default indexer configuration to null. (@creachadair)
  • [rpc] #8570 rework timeouts to be per-method instead of global. (@creachadair)
  • [rpc] #8624 deprecate broadcast_tx_commit and braodcast_tx_sync and broadcast_tx_async in favor of braodcast_tx. (@tychoish)
  • [config] #8654 remove deprecated seeds field from config. Users should switch to bootstrap-peers instead. (@cmwaters)

• Apps

  • [tendermint/spec] #7804 Migrate spec from spec repo.
  • [abci] #7984 Remove the locks preventing concurrent use of ABCI applications by Tendermint. (@tychoish)
  • [abci] #8605 Remove info, log, events, gasUsed and mempoolError fields from ResponseCheckTx as they are not used by Tendermint. (@jmalicevic)
  • [abci] #8664 Move app_hash parameter from Commit to FinalizeBlock. (@sergio-mena)
  • [abci] #8656 Added cli command for PrepareProposal. (@jmalicevic)
  • [sink/psql] #8637 tx_results emitted from psql sink are now json encoded, previously they were protobuf encoded
  • [abci] #8901 Added cli command for ProcessProposal. (@hvanz)

• P2P Protocol

  • [p2p] #7035 Remove legacy P2P routing implementation and associated configuration options. (@tychoish)
  • [p2p] #7265 Peer manager reduces peer score for each failed dial attempts for peers that have not successfully dialed. (@tychoish)
  • [p2p] #7594 always advertise self, to enable mutual address discovery. (@altergui)
  • [p2p] #8737 Introduce "inactive" peer label to avoid re-dialing incompatible peers. (@tychoish)
  • [p2p] #8737 Increase frequency of dialing attempts to reduce latency for peer acquisition. (@tychoish)
  • [p2p] #8737 Improvements to peer scoring and sorting to gossip a greater variety of peers during PEX. (@tychoish)
  • [p2p] #8737 Track incoming and outgoing peers separately to ensure more peer slots open for incoming connections. (@tychoish)

• Go API

  • [rpc] #7474 Remove the "URI" RPC client. (@creachadair)
  • [libs/pubsub] #7451 Internalize the pubsub packages. (@creachadair)
  • [libs/sync] #7450 Internalize and remove the library. (@creachadair)
  • [libs/async] #7449 Move library to internal. (@creachadair)
  • [pubsub] #7231 Remove unbuffered subscriptions and rework the Subscription interface. (@creachadair)
  • [eventbus] #7231 Move the EventBus type to the internal/eventbus package. (@creachadair)
  • [blocksync] #7046 Remove v2 implementation of the blocksync service and recactor, which was disabled in the previous release. (@tychoish)
  • [p2p] #7064 Remove WDRR queue implementation. (@tychoish)
  • [config] #7169 WriteConfigFile now returns an error. (@tychoish)
  • [libs/service] #7288 Remove SetLogger method on service.Service interface. (@tychoish)
  • [abci/client] #7607 Simplify client interface (removes most "async" methods). (@creachadair)
  • [libs/json] #7673 Remove the libs/json (tmjson) library. (@creachadair)
  • [crypto] #8412 #8432 Remove crypto/tmhash package in favor of small functions in crypto package and cleanup of unused functions. (@tychoish)

• Blockchain Protocol

FEATURES

• [rpc] #7270 Add header and header_by_hash RPC Client queries. (@fedekunze)
• [rpc] [#7701] Add ApplicationInfo to status rpc call which contains the application version. (@jonasbostoen)
• [cli] #7033 Add a rollback command to rollback to the previous tendermint state in the event of non-determinstic app hash or reverting an upgrade.
• [mempool, rpc] #7041 Add removeTx operation to the RPC layer. (@tychoish)
• [consensus] #7354 add a new synchrony field to the ConsensusParams struct for controlling the parameters of the proposer-based timestamp algorithm. (@williambanfield)
• [consensus] #7376 Update the proposal logic per the Propose-based timestamps specification so that the proposer will wait for the previous block time to occur before proposing the next block. (@williambanfield)
• [consensus] #7391 Use the proposed block timestamp as the proposal timestamp. Update the block validation logic to ensure that the proposed block's timestamp matches the timestamp in the proposal message. (@williambanfield)
• [consensus] #7415 Update proposal validation logic to Prevote nil if a proposal does not meet the conditions for Timelyness per the proposer-based timestamp specification. (@anca)
• [consensus] #7382 Update block validation to no longer require the block timestamp to be the median of the timestamps of the previous commit. (@anca)
• [consensus] #7711 Use the proposer timestamp for the first height instead of the genesis time. Chains will still start consensus at the genesis time. (@anca)
• [cli] #8281 Add a tool to update old config files to the latest version. (@creachadair)
• [consenus] #8514 move RecheckTx from the local node mempool config to a global ConsensusParams field in BlockParams (@cmwaters)
• [abci] ABCI++ specified. (@sergio-mena, @cmwaters, @josef-widder)
• [abci] ABCI++ implemented. (@williambanfield, @thanethomson, @sergio-mena)

IMPROVEMENTS

• [internal/protoio] #7325 Optimized MarshalDelimited by inlining the common case and using a sync.Pool in the worst case. (@odeke-em)
• [consensus] #6969 remove logic to 'unlock' a locked block.
• [evidence] #7700 Evidence messages contain single Evidence instead of EvidenceList (@jmalicevic)
• [evidence] #7802 Evidence pool emits events when evidence is validated and updates a metric when the number of evidence in the evidence pool changes. (@jmalicevic)
• [pubsub] #7319 Performance improvements for the event query API (@creachadair)
• [node] #7521 Define concrete type for seed node implementation (@spacech1mp)
• [rpc] #7612 paginate mempool /unconfirmed_txs rpc endpoint (@spacech1mp)
• [light] #7536 rpc /status call returns info about the light client (@jmalicevic)
• [types] #7765 Replace EvidenceData with EvidenceList to avoid unnecessary nesting of evidence fields within a block. (@jmalicevic)

BUG FIXES

• fix: assignment copies lock value in BitArray.UnmarshalJSON() (@lklimek)
• [light] #7640 Light Client: fix absence proof verification (@ashcherbakov)
• [light] #7641 Light Client: fix querying against the latest height (@ashcherbakov)
• [cli] #7837 fix app hash in state rollback. (@yihuang)
• [cli] #8276 scmigrate: ensure target key is correctly renamed. (@creachadair)
• [cli] #8294 keymigrate: ensure block hash keys are correctly translated. (@creachadair)
• [cli] #8352 keymigrate: ensure transaction hash keys are correctly translated. (@creachadair)
• (indexer) #8625 Fix overriding tx index of duplicated txs.