tendermint/CHANGELOG_PENDING.md

Pending

Special thanks to external contributors on this release: @goolAdapter, @bradyjoestar

BREAKING CHANGES:

• CLI/RPC/Config

  • [config] #2232 timeouts as time.Duration, not ints
  • [config] #2505 Remove Mempool.RecheckEmpty (it was effectively useless anyways)
  • [config] mempool.wal is disabled by default
  • [rpc] #2298 /abci_query takes prove argument instead of trusted and switches the default behaviour to prove=false
  • [privval] #2459 Split SocketPVMsgs implementations into Request and Response, where the Response may contain a error message (returned by the remote signer)
  • [state] #2644 Add Version field to State, breaking the format of State as encoded on disk.
  • [rpc] #2654 Remove all node_info.other.*_version fields in /status and /net_info

• Apps

  • [abci] #2298 ResponseQuery.Proof is now a structured merkle.Proof, not just arbitrary bytes
  • [abci] #2644 Add Version to Header and shift all fields by one
  • [abci] #2662 Bump the field numbers for some ResponseInfo fields to make room for AppVersion

• Go API

  • [node] Remove node.RunForever
  • [config] #2232 timeouts as time.Duration, not ints
  • [rpc/client] #2298 ABCIQueryOptions.Trusted -> ABCIQueryOptions.Prove
  • [types] #2298 Remove Index and Total fields from TxProof.
  • [crypto/merkle & lite] #2298 Various changes to accomodate General Merkle trees
  • [crypto/merkle] #2595 Remove all Hasher objects in favor of byte slices
  • [crypto/merkle] #2635 merkle.SimpleHashFromTwoHashes is no longer exported
  • [types] #2598 VoteTypeXxx are now of type SignedMsgType byte and named XxxType, eg. PrevoteType, PrecommitType.

• Blockchain Protocol

  • [types] Update SignBytes for Vote/Proposal/Heartbeat:
    • #2459 Use amino encoding instead of JSON in SignBytes.
    • #2598 Reorder fields and use fixed sized encoding.
    • #2598 Change Type field fromt string to byte and use new SignedMsgType to enumerate.
  • [types] #2512 Remove the pubkey field from the validator hash
  • [types] #2644 Add Version struct to Header
  • [state] #2587 Require block.Time of the fist block to be genesis time
  • [state] #2644 Require block.Version to match state.Version
  • [types] #2670 Header.Hash() builds Merkle tree out of fields in the same order they appear in the header, instead of sorting by field name

• P2P Protocol

  • [p2p] #2654 Add ProtocolVersion struct with protocol versions to top of DefaultNodeInfo and require ProtocolVersion.Block to match during peer handshake

FEATURES:

• [crypto/merkle] #2298 General Merkle Proof scheme for chaining various types of Merkle trees together
• [abci] #2557 Add Codespace field to Response{CheckTx, DeliverTx, Query}
• [abci] #2662 Add BlockVersion and P2PVersion to RequestInfo

IMPROVEMENTS:

• Additional Metrics
  • [consensus] #2169
  • [p2p] #2169
• [config] #2232 Added ValidateBasic method, which performs basic checks
• [crypto/ed25519] #2558 Switch to use latest golang.org/x/crypto through our fork at github.com/tendermint/crypto
• [tools] #2238 Binary dependencies are now locked to a specific git commit
• [crypto] #2099 make crypto random use chacha, and have forward secrecy of generated randomness

BUG FIXES:

• [autofile] #2428 Group.RotateFile need call Flush() before rename (@goolAdapter)
• [node] #2434 Make node respond to signal interrupts while sleeping for genesis time
• [consensus] #1690 wait for timeoutPrecommit before starting next round
• [consensus] #1745 wait for Proposal or timeoutProposal before entering prevote
• [evidence] #2515 fix db iter leak (@goolAdapter)
• [common/bit_array] Fixed a bug in the Or function
• [common/bit_array] Fixed a bug in the Sub function (@james-ray)
• [common] #2534 Make bit array's PickRandom choose uniformly from true bits
• [consensus] #1637 Limit the amount of evidence that can be included in a block
• [p2p] #2555 fix p2p switch FlushThrottle value (@goolAdapter)
• [libs/event] #2518 fix event concurrency flaw (@goolAdapter)
• [state] #2616 Pass nil to NewValidatorSet() when genesis file's Validators field is nil
• [p2p] #2668 Reconnect to originally dialed address (not self-reported address) for persistent peers