# Changelog

## 0.15.1 (April 29, 2018)

IMPROVEMENTS:

* Update Tendermint to v0.19.1 (includes many rpc fixes)

## 0.15.0 (April 29, 2018)

FEATURES:

* Add CacheContext
* Add auto sequencing to client
* Add FeeHandler to ante handler
* Gaia stake commands include, DeclareCandidacy, EditCandidacy, Delegate, Unbond
* MountStoreWithDB without providing a custom store works.
* Repo is now lint compliant / GoMetaLinter with tendermint-lint integrated into CI
* Better key output, pubkey go-amino hex bytes now output by default
* gaiad init overhaul
  * Create genesis transactions with `gaiad init gen-tx` 
  * New genesis account keys are automatically added to the client keybase (introduce `--client-home` flag)
  * Initialize with genesis txs using `--gen-txs` flag

BREAKING CHANGES

* Remove go-wire, use go-amino
* Move module REST/CLI packages to x/[module]/client/rest and x/[module]/client/cli
* Gaia simple-staking bond and unbond functions replaced 
* [stake] Delegator bonds now store the height at which they were updated
* [store] Add `SubspaceIterator` and `ReverseSubspaceIterator` to `KVStore` interface
* [basecoin] NewBasecoinApp takes a `dbm.DB` and uses namespaced DBs for substores
* All module keepers now require a codespace, see basecoin or democoin for usage
* Many changes to names throughout 
  * Type as a prefix naming convention applied (ex. BondMsg -> MsgBond) 
  * Removed redundancy in names (ex. stake.StakeKeeper -> stake.Keeper)
* Removed SealedAccountMapper
* gaiad init now requires use of `--name` flag 

BUG FIXES
* Gaia now uses stake, ported from github.com/cosmos/gaia

## 0.14.1 (April 9, 2018)

BUG FIXES

* [gaiacli] Fix all commands (just a duplicate of basecli for now)

## 0.14.0 (April 9, 2018)

BREAKING CHANGES:

* [client/builder] Renamed to `client/core` and refactored to use a CoreContext
  struct
* [server] Refactor to improve useability and de-duplicate code
* [types] `Result.ToQuery -> Error.QueryResult`
* [makefile] `make build` and `make install` only build/install `gaiacli` and
  `gaiad`. Use `make build_examples` and `make install_examples` for
  `basecoind/basecli` and `democoind/democli`
* [staking] Various fixes/improvements

FEATURES:

* [democoin] Added Proof-of-Work module

BUG FIXES

* [client] Reuse Tendermint RPC client to avoid excessive open files
* [client] Fix setting log level 
* [basecoin] Sort coins in genesis

## 0.13.1 (April 3, 2018)

BUG FIXES

* [x/ibc] Fix CLI and relay for IBC txs
* [x/stake] Various fixes/improvements

## 0.13.0 (April 2, 2018)

BREAKING CHANGES

* [basecoin] Remove cool/sketchy modules -> moved to new `democoin`
* [basecoin] NewBasecoinApp takes a `map[string]dbm.DB` as temporary measure
  to allow mounting multiple stores with their own DB until they can share one
* [x/staking] Renamed to `simplestake`
* [builder] Functions don't take `passphrase` as argument
* [server] GenAppParams returns generated seed and address
* [basecoind] `init` command outputs JSON of everything necessary for testnet
* [basecoind] `basecoin.db -> data/basecoin.db`
* [basecli] `data/keys.db -> keys/keys.db`

FEATURES

* [types] `Coin` supports direct arithmetic operations
* [basecoind] Add `show_validator` and `show_node_id` commands
* [x/stake] Initial merge of full staking module!
* [democoin] New example application to demo custom modules

IMPROVEMENTS

* [makefile] `make install`
* [testing] Use `/tmp` for directories so they don't get left in the repo

BUG FIXES

* [basecoin] Allow app to be restarted
* [makefile] Fix build on Windows
* [basecli] Get confirmation before overriding key with same name

## 0.12.0 (March 27 2018)

BREAKING CHANGES

* Revert to old go-wire for now
* glide -> godep
* [types] ErrBadNonce -> ErrInvalidSequence
* [types] Replace tx.GetFeePayer with FeePayer(tx) - returns the first signer
* [types] NewStdTx takes the Fee
* [types] ParseAccount -> AccountDecoder; ErrTxParse -> ErrTxDecoder
* [x/auth] AnteHandler deducts fees
* [x/bank] Move some errors to `types`
* [x/bank] Remove sequence and signature from Input

FEATURES

* [examples/basecoin] New cool module to demonstrate use of state and custom transactions
* [basecoind] `show_node_id` command
* [lcd] Implement the Light Client Daemon and endpoints
* [types/stdlib] Queue functionality
* [store] Subspace iterator on IAVLTree
* [types] StdSignDoc is the document that gets signed (chainid, msg, sequence, fee)
* [types] CodeInvalidPubKey
* [types] StdFee, and StdTx takes the StdFee
* [specs] Progression of MVPs for IBC
* [x/ibc] Initial shell of IBC functionality (no proofs)
* [x/simplestake] Simple staking module with bonding/unbonding

IMPROVEMENTS

* Lots more tests!
* [client/builder] Helpers for forming and signing transactions 
* [types] sdk.Address
* [specs] Staking

BUG FIXES
* [x/auth] Fix setting pubkey on new account
* [x/auth] Require signatures to include the sequences
* [baseapp] Dont panic on nil handler
* [basecoin] Check for empty bytes in account and tx

## 0.11.0 (March 1, 2017)

BREAKING CHANGES

* [examples] dummy -> kvstore
* [examples] Remove gaia
* [examples/basecoin] MakeTxCodec -> MakeCodec
* [types] CommitMultiStore interface has new `GetCommitKVStore(key StoreKey) CommitKVStore` method

FEATURES

* [examples/basecoin] CLI for `basecli` and `basecoind` (!)
* [baseapp] router.AddRoute returns Router

IMPROVEMENTS

* [baseapp] Run msg handlers on CheckTx
* [docs] Add spec for REST API
* [all] More tests!

BUG FIXES

* [baseapp] Fix panic on app restart
* [baseapp] InitChain does not call Commit
* [basecoin] Remove IBCStore because mounting multiple stores is currently broken

## 0.10.0 (February 20, 2017)

BREAKING CHANGES

* [baseapp] NewBaseApp(logger, db)
* [baseapp] NewContext(isCheckTx, header)
* [x/bank] CoinMapper -> CoinKeeper

FEATURES

* [examples/gaia] Mock CLI !
* [baseapp] InitChainer, BeginBlocker, EndBlocker
* [baseapp] MountStoresIAVL

IMPROVEMENTS

* [docs] Various improvements.
* [basecoin] Much simpler :)

BUG FIXES

* [baseapp] initialize and reset msCheck and msDeliver properly

## 0.9.0 (February 13, 2017)

BREAKING CHANGES

* Massive refactor. Basecoin works. Still needs <3

## 0.8.1 

* Updates for dependencies

## 0.8.0 (December 18, 2017)

* Updates for dependencies

## 0.7.1 (October 11, 2017)

IMPROVEMENTS:

* server/commands: GetInitCmd takes list of options

## 0.7.0 (October 11, 2017)

BREAKING CHANGES:

* Everything has changed, and it's all about to change again, so don't bother using it yet!

## 0.6.2 (July 27, 2017)

IMPROVEMENTS:

* auto-test all tutorials to detect breaking changes
* move deployment scripts from `/scripts` to `/publish` for clarity

BUG FIXES:

* `basecoin init` ensures the address in genesis.json is valid
* fix bug that certain addresses couldn't receive ibc packets

## 0.6.1 (June 28, 2017)

Make lots of small cli fixes that arose when people were using the tools for
the testnet.

IMPROVEMENTS:
- basecoin
  - `basecoin start` supports all flags that `tendermint node` does, such as
  `--rpc.laddr`, `--p2p.seeds`, and `--p2p.skip_upnp`
  - fully supports `--log_level` and `--trace` for logger configuration
  - merkleeyes no longers spams the logs... unless you want it
    - Example: `basecoin start --log_level="merkleeyes:info,state:info,*:error"`
    - Example: `basecoin start --log_level="merkleeyes:debug,state:info,*:error"`
- basecli
  - `basecli init` is more intelligent and only complains if there really was
  a connected chain, not just random files
  - support `localhost:46657` or `http://localhost:46657` format for nodes,
  not just `tcp://localhost:46657`
  - Add `--genesis` to init to specify chain-id and validator hash
    - Example: `basecli init --node=localhost:46657 --genesis=$HOME/.basecoin/genesis.json`
  - `basecli rpc` has a number of methods to easily accept tendermint rpc, and verifies what it can

BUG FIXES:
- basecli
  - `basecli query account` accepts hex account address with or without `0x`
  prefix
  - gives error message when running commands on an unitialized chain, rather
  than some unintelligable panic


## 0.6.0 (June 22, 2017)

Make the basecli command the only way to use client-side, to enforce best
security practices. Lots of enhancements to get it up to production quality.

BREAKING CHANGES:
- ./cmd/commands -> ./cmd/basecoin/commands
- basecli
  - `basecli proof state get` -> `basecli query key`
  - `basecli proof tx get` -> `basecli query tx`
  - `basecli proof state get --app=account` -> `basecli query account`
  - use `--chain-id` not `--chainid` for consistency
  - update to use `--trace` not `--debug` for stack traces on errors
  - complete overhaul on how tx and query subcommands are added. (see counter or trackomatron for examples)
  - no longer supports counter app (see new countercli)
- basecoin
  - `basecoin init` takes an argument, an address to allocate funds to in the genesis
  - removed key2.json
  - removed all client side functionality from it (use basecli now for proofs)
    - no tx subcommand
    - no query subcommand
    - no account (query) subcommand
    - a few other random ones...
  - enhanced relay subcommand
    - relay start did what relay used to do
    - relay init registers both chains on one another (to set it up so relay start just works)
- docs
  - removed `example-plugin`, put `counter` inside `docs/guide`
- app
  - Implements ABCI handshake by proxying merkleeyes.Info()

IMPROVEMENTS:
- `basecoin init` support `--chain-id`
- intergrates tendermint 0.10.0 (not the rc-2, but the real thing)
- commands return error code (1) on failure for easier script testing
- add `reset_all` to basecli, and never delete keys on `init`
- new shutil based unit tests, with better coverage of the cli actions
- just `make fresh` when things are getting stale ;)

BUG FIXES:
- app: no longer panics on missing app_options in genesis (thanks, anton)
- docs: updated all docs... again
- ibc: fix panic on getting BlockID from commit without 100% precommits (still a TODO)

## 0.5.2 (June 2, 2017)

BUG FIXES:
- fix parsing of the log level from Tendermint config (#97)

## 0.5.1 (May 30, 2017)

BUG FIXES:
- fix ibc demo app to use proper tendermint flags, 0.10.0-rc2 compatibility
- Make sure all cli uses new json.Marshal not wire.JSONBytes

## 0.5.0 (May 27, 2017)

BREAKING CHANGES:
- only those related to the tendermint 0.9 -> 0.10 upgrade

IMPROVEMENTS:
- basecoin cli
  - integrates tendermint 0.10.0 and unifies cli (init, unsafe_reset_all, ...)
  - integrate viper, all command line flags can also be defined in environmental variables or config.toml
- genesis file
  - you can define accounts with either address or pub_key
  - sorts coins for you, so no silent errors if not in alphabetical order
- [light-client](https://github.com/tendermint/light-client) integration
  - no longer must you trust the node you connect to, prove everything!
  - new [basecli command](./cmd/basecli/README.md)
  - integrated [key management](https://github.com/tendermint/go-crypto/blob/master/cmd/README.md), stored encrypted locally
  - tracks validator set changes and proves everything from one initial validator seed
  - `basecli proof state` gets complete proofs for any abci state
  - `basecli proof tx` gets complete proof where a tx was stored in the chain
  - `basecli proxy` exposes tendermint rpc, but only passes through results after doing complete verification

BUG FIXES:
- no more silently ignored error with invalid coin names (eg. "17.22foo coin" used to parse as "17 foo", not warning/error)


## 0.4.1 (April 26, 2017)

BUG FIXES:

- Fix bug in `basecoin unsafe_reset_X` where the `priv_validator.json` was not being reset

## 0.4.0 (April 21, 2017)

BREAKING CHANGES:

- CLI now uses Cobra, which forced changes to some of the flag names and orderings

IMPROVEMENTS:

- `basecoin init` doesn't generate error if already initialized
- Much more testing

## 0.3.1 (March 23, 2017)

IMPROVEMENTS:

- CLI returns exit code 1 and logs error before exiting

## 0.3.0 (March 23, 2017)

BREAKING CHANGES:

- Remove `--data` flag and use `BCHOME` to set the home directory (defaults to `~/.basecoin`)
- Remove `--in-proc` flag and start Tendermint in-process by default (expect Tendermint files in $BCHOME/tendermint).
To start just the ABCI app/server, use `basecoin start --without-tendermint`.
- Consolidate genesis files so the Basecoin genesis is an object under `app_options` in Tendermint genesis. For instance:

```
{
  "app_hash": "",
  "chain_id": "foo_bar_chain",
  "genesis_time": "0001-01-01T00:00:00.000Z",
  "validators": [
    {
      "amount": 10,
      "name": "",
      "pub_key": [
	1,
	"7B90EA87E7DC0C7145C8C48C08992BE271C7234134343E8A8E8008E617DE7B30"
      ]
    }
  ],
  "app_options": {
    "accounts": [{
      "pub_key": {
        "type": "ed25519",
        "data": "6880db93598e283a67c4d88fc67a8858aa2de70f713fe94a5109e29c137100c2"
      },
      "coins": [
        {
          "denom": "blank",
          "amount": 12345
        },
        {
          "denom": "ETH",
          "amount": 654321
        }
      ]
    }],
    "plugin_options": ["plugin1/key1", "value1", "plugin1/key2", "value2"]
  }
}
```

Note the array of key-value pairs is now under `app_options.plugin_options` while the `app_options` themselves are well formed.
We also changed `chainID` to `chain_id` and consolidated to have just one of them.

FEATURES:

- Introduce `basecoin init` and `basecoin unsafe_reset_all`

## 0.2.0 (March 6, 2017)

BREAKING CHANGES:

- Update to ABCI v0.4.0 and Tendermint v0.9.0
- Coins are specified on the CLI as `Xcoin`, eg. `5gold`
- `Cost` is now `Fee`

FEATURES:

- CLI for sending transactions and querying the state,
designed to be easily extensible as plugins are implemented
- Run Basecoin in-process with Tendermint
- Add `/account` path in Query
- IBC plugin for InterBlockchain Communication
- Demo script of IBC between two chains

IMPROVEMENTS:

- Use new Tendermint `/commit` endpoint for crafting IBC transactions
- More unit tests
- Use go-crypto S structs and go-data for more standard JSON
- Demo uses fewer sleeps

BUG FIXES:

- Various little fixes in coin arithmetic
- More commit validation in IBC
- Return results from transactions

## PreHistory

##### January 14-18, 2017

- Update to Tendermint v0.8.0
- Cleanup a bit and release blog post

##### September 22, 2016

- Basecoin compiles again