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tendermint v0.34.0-rc2 Release Notes

Release Date: 2020-07-30 // over 3 years ago

  • July 30, 2020

    🚀 Special thanks to external contributors on this release: @james-ray, @fedekunze, @favadi, @alessio, @joe-bowman, @cuonglm

    Friendly reminder, we have a bug bounty program.

    💥 BREAKING CHANGES:

    • CLI/RPC/Config

      • [evidence] #4959 Add json tags to DuplicateVoteEvidence
      • [light] #4946 tendermint lite cmd has been renamed to tendermint light
      • [privval] #4582 round in private_validator_state.json is no longer a string in json it is now a number
      • [rpc] #4792 /validators are now sorted by voting power (@melekes)
      • [rpc] #4937 Return an error when page pagination param is 0 in /validators, tx_search (@melekes)
      • [rpc] #5137 The json tags of gasWanted & gasUsed in ResponseCheckTx & ResponseDeliverTx have been made snake_case. (gas_wanted & gas_used)

    • Apps

      • [abci] #4704 Add ABCI methods ListSnapshots, LoadSnapshotChunk, OfferSnapshot, and ApplySnapshotChunk for state sync snapshots. ABCIVersion bumped to 0.17.0.
      • [abci] #4989 Proof within ResponseQuery has been renamed to ProofOps
      • [abci] CheckTxType Protobuf enum names are now uppercase, to follow Protobuf style guide

    • P2P Protocol

      • [blockchain] #4637 Migrate blockchain reactor(s) to Protobuf encoding
      • [evidence] #4949 Migrate evidence reactor to Protobuf encoding
      • [mempool] #4940 Migrate mempool from to Protobuf encoding
      • [p2p/pex] #4973 Migrate p2p/pex reactor to Protobuf encoding
      • [statesync] #4943 Migrate state sync reactor to Protobuf encoding

    • Blockchain Protocol

      • [evidence] #4780 Cap evidence to an absolute number (@cmwaters)
      • Add max_num to consensus evidence parameters (default: 50 items).
      • [evidence] #4725 Remove Pubkey from DuplicateVoteEvidence
      • [state] #4845 Include GasWanted and GasUsed into LastResultsHash (@melekes)
      • [types] #4792 Sort validators by voting power to enable faster commit verification (@melekes)

    • On-disk serialization

      • [state] #4679 Migrate state module to Protobuf encoding
      • BlockStoreStateJSON is now BlockStoreState and is encoded as binary in the database
      • [store] #4778 Migrate store module to Protobuf encoding

    • Light client, private validator

      • [light] #4964 Migrate light module migration to Protobuf encoding
      • [privval] #4985 Migrate privval module to Protobuf encoding

    • Go API

      • [light] #4946 Rename lite2 pkg to light. Remove lite implementation.
      • [crypto] #4721 Remove SimpleHashFromMap() and SimpleProofsFromMap() (@erikgrinaker)
      • [crypto] #4940 All keys have become []byte instead of [<size>]byte. The byte method no longer returns the marshaled value but just the []byte form of the data.
      • [crypto] \4988 Removal of key type multisig
      • The key has been moved to the Cosmos-SDK
      • [crypto] #4989 Remove Simple prefixes from SimpleProof, SimpleValueOp & SimpleProofNode.
      • merkle.Proof has been renamed to ProofOps.
      • Protobuf messages Proof & ProofOp has been moved to proto/crypto/merkle
      • SimpleHashFromByteSlices has been renamed to HashFromByteSlices
      • SimpleHashFromByteSlicesIterative has been renamed to HashFromByteSlicesIterative
      • SimpleProofsFromByteSlices has been renamed to ProofsFromByteSlices
      • [crypto] #4941 Remove suffixes from all keys.
      • ed25519: type PrivKeyEd25519 is now PrivKey
      • ed25519: type PubKeyEd25519 is now PubKey
      • secp256k1: typePrivKeySecp256k1 is now PrivKey
      • secp256k1: typePubKeySecp256k1 is now PubKey
      • sr25519: type PrivKeySr25519 is now PrivKey
      • sr25519: type PubKeySr25519 is now PubKey
      • multisig: type PubKeyMultisigThreshold is now PubKey
      • [libs] #4831 Remove Bech32 pkg from Tendermint. This pkg now lives in the cosmos-sdk
      • [rpc/client] #4947 Validators, TxSearch page/per_page params become pointers (@melekes)
      • UnconfirmedTxs limit param is a pointer
      • [proto] #5025 All proto files have been moved to /proto directory.
      • Using the recommended the file layout from buf, see here for more info
      • [state] #4679 TxResult is a Protobuf type defined in abci types directory
      • [types] #4939 SignedMsgType has moved to a Protobuf enum types
      • [types] #4962 ConsensusParams, BlockParams, EvidenceParams, ValidatorParams & HashedParams are now Protobuf types
      • [types] #4852 Vote & Proposal SignBytes is now func VoteSignBytes & ProposalSignBytes
      • [types] #4798 Simplify VerifyCommitTrusting func + remove extra validation (@melekes)
      • [types] #4845 Remove ABCIResult
      • [types] #5029 Rename all values from PartsHeader to PartSetHeader to have consistency
      • [types] #4939 Total in Parts & PartSetHeader has been changed from a int to a uint32
      • [types] #4939 Vote: ValidatorIndex & Round are now int32
      • [types] #4939 Proposal: POLRound & Round are now int32
      • [types] #4939 Block: Round is now int32
      • [consensus] #4582 RoundState: Round, LockedRound & CommitRound are now int32
      • [consensus] #4582 HeightVoteSet: round is now int32
      • [rpc/jsonrpc/server] #5141 Remove WriteRPCResponseArrayHTTP (use WriteRPCResponseHTTP instead) (@melekes)

    🔋 FEATURES:

    • [abci] #5031 Add AppVersion to consensus parameters (@james-ray)
      • ... making it possible to update your ABCI application version via EndBlock response
    • [evidence] #4532 Handle evidence from light clients (@melekes)
    • [evidence] #4821 Amnesia evidence can be detected, verified and committed (@cmwaters)
    • [light] #4532 Submit conflicting headers, if any, to a full node & all witnesses (@melekes)
    • [p2p] #4981 Expose SaveAs func on NodeKey (@melekes)
    • 👍 [rpc] #4532 Support BlockByHash query (@fedekunze)
    • 👍 [rpc] #4979 Support EXISTS operator in /tx_search query (@melekes)
    • [rpc] #5017 Add /check_tx endpoint to check transactions without executing them or adding them to the mempool (@melekes)
    • 👀 [statesync] Add state sync support, where a new node can be rapidly bootstrapped by fetching state snapshots from peers instead of replaying blocks. See the [statesync] config section.
    • [rpc] #5108 Subscribe using the websocket for new evidence events (@cmwaters)

    👌 IMPROVEMENTS:

    • [consensus] #4578 Attempt to repair the consensus WAL file (data/cs.wal/wal) automatically in case of corruption (@alessio)
      • The original WAL file will be backed up to data/cs.wal/wal.CORRUPTED.
    • [evidence] #4722 Improved evidence db (@cmwaters)
    • [evidence] #4839 Reject duplicate evidence from being proposed (@cmwaters)
    • 🚚 [evidence] #4892 Remove redundant header from phantom validator evidence (@cmwaters)
    • [light] #4935 Fetch and compare a new header with witnesses in parallel (@melekes)
    • [light] #4929 compare header w/ witnesses only when doing bisection (@melekes)
    • [light] #4916 validate basic for inbound validator sets and headers before further processing them (@cmwaters)
    • [p2p/conn] #4795 Return err on signChallenge() instead of panic
    • [state] #4781 Export InitStateVersion for the initial state version (@erikgrinaker)
    • [txindex] #4466 Allow to index an event at runtime (@favadi)
      • abci.EventAttribute replaces KV.Pair
    • 🏗 [libs] #5126 Add a sync package which wraps sync.(RW)Mutex & deadlock.(RW)Mutex and use a build flag (deadlock) in order to enable deadlock checking
    • [types] #4905 Add ValidateBasic to validator and validator set (@cmwaters)
    • [rpc] #4968 JSON encoding is now handled by libs/json, not Amino
    • 🚚 [mempool] Add RemoveTxByKey() exported function for custom mempool cleaning (@p4u)
    • [consensus] #5143 Only call privValidator.GetPubKey once per block (@melekes)

    🐛 BUG FIXES:

    • [blockchain/v2] Correctly set block store base in status responses (@erikgrinaker)
    • [consensus] #4895 Cache the address of the validator to reduce querying a remote KMS (@joe-bowman)
    • [consensus] #4970 Stricter on LastCommitRound check (@cuonglm)
    • [p2p]#5136 Fix error for peer with the same ID but different IPs (@valardragon)
    • [proxy] #5078 Fix a bug, where TM does not exit when ABCI app crashes (@melekes)