tendermint/CHANGELOG.md

Changelog

0.8.0 (TBD)

BREAKING CHANGES:

• [client] all XxxSync methods now return (ResponseXxx, error)
• [types] all methods on Application interface now take RequestXxx and return (ResponseXxx, error).
  • Except CheckTx/DeliverTx, which takes a tx []byte argument.
  • Except Commit, which takes no arguments.
• [types] removed Result and ResultQuery
• [types] removed CodeType - only 0 == OK is defined here, everything else is left to convention at the application level
• [types] switched to using gogo/protobuf for code generation
• [types] use customtype feature of gogo/protobuf to replace []byte with data.Bytes in all generated types :)
  • this eliminates the need for additional types like ResultQuery
• [types] pubKey -> pub_key
• [types] uint64 -> int64
• [abci-cli] codes are printed as their number instead of a message, except for code == 0, which is still printed as OK

FEATURES:

• [types] ResponseDeliverTx: added tags field
• [types] ResponseCheckTx: added gas and fee fields
• [types] RequestBeginBlock: added absent_validators and byzantine_validators fields
• [dummy] DeliverTx returns an owner tag and a key tag
• [abci-cli] added log_level flag to control the logger

0.7.1 (November 14, 2017)

IMPROVEMENTS:

• [cli] added version command

BUG FIXES:

• [server] fix "Connection error module=abci-server error=EOF"

0.7.0 (October 27, 2017)

BREAKING CHANGES:

• [cli] consolidate example apps under a single abci-cli binary

IMPROVEMENTS:

• [cli] use spf13/cobra instead of urfave/cli
• [dummy] use iavl instead of merkleeyes, and add support for historical queries

BUG FIXES:

• [client] fix deadlock on StopForError

0.6.0 (September 22, 2017)

BREAKING CHANGES:

• [types/client] app.BeginBlock takes RequestBeginBlock
• [types/client] app.InitChain takes RequestInitChain
• [types/client] app.Info takes RequestInfo

IMPROVEMENTS:

• various linting

0.5.0 (May 18, 2017)

BREAKING CHANGES:

• NewSocketClient and NewGRPCClient no longer start the client automatically, and don't return errors. The caller is responsible for running client.Start() and checking the error.
• NewSocketServer and NewGRPCServer no longer start the server automatically, and don't return errors. The caller is responsible for running server.Start() and checking the error.

FEATURES:

• [types] new method func (res Result) IsSameCode(compare Result) bool checks whether two results have the same code
• [types] new methods func (r *ResponseCheckTx) Result() Result and func (r *ResponseDeliverTx) Result() Result to convert from protobuf types (for control over json serialization)
• [types] new method func (r *ResponseQuery) Result() *ResultQuery and struct ResultQuery to convert from protobuf types (for control over json serializtion)

IMPROVEMENTS:

• Update imports for new tmlibs repository
• Use the new logger
• [abci-cli] Add flags to the query command for path, height, and prove
• [types] use data.Bytes and json tags in the Result struct

BUG FIXES:

0.4.1 (April 18, 2017)

IMPROVEMENTS:

• Update dependencies

0.4.0 (March 6, 2017)

BREAKING CHANGES:

• Query takes RequestQuery and returns ResponseQuery. The request is split into data and path, can specify a height to query the state from, and whether or not the response should come with a proof. The response returns the corresponding key-value pair, with proof if requested.

message RequestQuery{
	bytes data = 1;
	string path = 2;
	uint64 height = 3;
	bool prove = 4;
}

message ResponseQuery{
	CodeType          code        = 1;
	int64             index       = 2;
	bytes             key         = 3;
	bytes             value       = 4;
	bytes             proof       = 5;
	uint64            height      = 6;
	string            log         = 7;
}

IMPROVEMENTS:

• Updates to Makefile
• Various cleanup
• BaseApplication can be embedded by new apps to avoid implementing empty methods
• Drop BlockchainAware and make BeginBlock/EndBlock part of the type Application interface

0.3.0 (January 12, 2017)

BREAKING CHANGES:

• TMSP is now ABCI (Application/Asynchronous/A BlockChain Interface or Atomic BroadCast Interface)
• AppendTx is now DeliverTx (conforms to the literature)
• BeginBlock takes a Header:

message RequestBeginBlock{
	bytes hash = 1;
	Header header = 2;
}

• Info returns a ResponseInfo, containing last block height and app hash:

message ResponseInfo {
	string data = 1;
	string version = 2;
	uint64 last_block_height = 3;
	bytes last_block_app_hash = 4;
}

• EndBlock returns a ResponseEndBlock, containing the changed validators:

message ResponseEndBlock{
	repeated Validator diffs = 4;
}

• Hex strings are 0x-prefixed in the CLI
• Query on the Dummy app now uses hex-strings

FEATURES:

• New app, PersistentDummy, uses Info/BeginBlock to recover from failures and supports validator set changes
• New message types for blockchain data:

//----------------------------------------
// Blockchain Types

message Header {
	string chain_id = 1;
	uint64 height = 2;
	uint64 time = 3;
	uint64 num_txs = 4;
	BlockID last_block_id = 5;
	bytes last_commit_hash = 6;
	bytes data_hash = 7;
	bytes validators_hash = 8;
	bytes app_hash = 9;
}

message BlockID {
	bytes hash = 1;
	PartSetHeader parts = 2;
}

message PartSetHeader {
	uint64 total = 1;
	bytes hash = 2;
}

message Validator {
            bytes             pubKey      = 1;
            uint64            power       = 2;
}

• Add support for Query to Counter app

IMPROVEMENT:

• Don't exit the tmsp-cli console on bad args

BUG FIXES:

• Fix parsing in the Counter app to handle invalid transactions

0.2.1 (September 12, 2016)

IMPROVEMENTS

• Better error handling in console

0.2.0 (July 23, 2016)

BREAKING CHANGES:

• Use oneof types in protobuf

FEATURES:

• GRPC support

PreHistory

Mar 26h, 2016

• Introduce BeginBlock

Mar 6th, 2016

• Added InitChain, EndBlock

Feb 14th, 2016

• s/GetHash/Commit/g
• Document Protobuf request/response fields

Jan 23th, 2016

• Added CheckTx/Query ABCI message types
• Added Result/Log fields to DeliverTx/CheckTx/SetOption
• Removed Listener messages
• Removed Code from ResponseSetOption and ResponseGetHash
• Made examples BigEndian

Jan 12th, 2016

• Added "RetCodeBadNonce = 0x06" return code

Jan 8th, 2016

• Tendermint/ABCI now comes to consensus on the order first before DeliverTx.