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# Changelog

## Unreleased

### API Breaking

* (rpc) [tharsis#1070](https://github.com/tharsis/ethermint/pull/1070) Refactor `rpc/` package:
  * `Backend` interface is now `BackendI`, which implements `EVMBackend` (for Ethereum namespaces) and `CosmosBackend` (for Cosmos namespaces)
  * Previous `EVMBackend` type is now `Backend`, which is the concrete implementation of `BackendI`
  * Move `rpc/ethereum/types` -> `rpc/types`
  * Move `rpc/ethereum/backend` -> `rpc/backend`
  * Move `rpc/ethereum/namespaces` -> `rpc/namespaces/ethereum`
* (rpc) [tharsis#1068](https://github.com/tharsis/ethermint/pull/1068) Fix London hard-fork check logic in JSON-RPC APIs.

### Improvements

* (ci, evm) [tharsis#1063](https://github.com/tharsis/ethermint/pull/1063) Run simulations on CI.

### Bug Fixes

* (rpc) [tharsis#1059](https://github.com/tharsis/ethermint/pull/1059) Remove unnecessary event filtering logic on the `eth_baseFee` JSON-RPC endpoint.

## [v0.14.0] - 2022-04-19

### API Breaking

* (evm) [tharsis#1051](https://github.com/tharsis/ethermint/pull/1051) Context block height fix on TraceTx. Removes `tx_index` on `QueryTraceTxRequest` proto type.

### Improvements

* (deps) [tharsis#1046](https://github.com/tharsis/ethermint/pull/1046) Bump Cosmos SDK version to [`v0.45.3`](https://github.com/cosmos/cosmos-sdk/releases/tag/v0.45.3)
* (rpc) [tharsis#1056](https://github.com/tharsis/ethermint/pull/1056) Make json-rpc namespaces extensible

### Bug Fixes

* (rpc) [tharsis#1050](https://github.com/tharsis/ethermint/pull/1050) `eth_getBlockByNumber` fix on batch transactions
* (app) [tharsis#658](https://github.com/tharsis/ethermint/issues/658) Support simulations for the EVM.

## [v0.13.0] - 2022-04-05

### API Breaking

* (evm) [tharsis#1027](https://github.com/tharsis/ethermint/pull/1027) Change the `PostTxProcessing` hook interface to include the full message data.
* (feemarket) [tharsis#1026](https://github.com/tharsis/ethermint/pull/1026) Fix REST endpoints to use `/ethermint/feemarket/*` instead of `/feemarket/evm/*`.

### Improvements

* (deps) [tharsis#1029](https://github.com/tharsis/ethermint/pull/1029) Bump Cosmos SDK version to [`v0.45.2`](https://github.com/cosmos/cosmos-sdk/releases/tag/v0.45.2)
* (evm) [tharsis#1025](https://github.com/tharsis/ethermint/pull/1025) Allow to append logs after a post processing hook.

## [v0.12.2] - 2022-03-30

### Bug Fixes

* (feemarket) [tharsis#1021](https://github.com/tharsis/ethermint/pull/1021) Fix fee market migration.

## [v0.12.1] - 2022-03-29

### Bug Fixes

* (evm) [tharsis#1016](https://github.com/tharsis/ethermint/pull/1016) Update validate basic check for storage state.

## [v0.12.0] - 2022-03-24

### Bug Fixes

* (rpc) [tharsis#1012](https://github.com/tharsis/ethermint/pull/1012) fix the tx hash in filter entries created by `eth_newPendingTransactionFilter`.
* (rpc) [tharsis#1006](https://github.com/tharsis/ethermint/pull/1006) Use `string` as the parameters type to correct ambiguous results.
* (ante) [tharsis#1004](https://github.com/tharsis/ethermint/pull/1004) Make `MaxTxGasWanted` configurable.
* (ante) [tharsis#991](https://github.com/tharsis/ethermint/pull/991) Set an upper bound to gasWanted to prevent DoS attack.
* (rpc) [tharsis#990](https://github.com/tharsis/ethermint/pull/990) Calculate reward values from all `MsgEthereumTx` from a block in `eth_feeHistory`.

## [v0.11.0] - 2022-03-06

### State Machine Breaking

* (ante) [tharsis#964](https://github.com/tharsis/ethermint/pull/964) add NewInfiniteGasMeterWithLimit for storing the user provided gas limit. Fixes block's consumed gas calculation in the block creation phase.

### Bug Fixes

* (rpc) [tharsis#975](https://github.com/tharsis/ethermint/pull/975) Fix unexpected `nil` values for `reward`, returned by `EffectiveGasTipValue(blockBaseFee)` in the `eth_feeHistory` RPC method.

### Improvements

- (rpc) [tharsis#979](https://github.com/tharsis/ethermint/pull/979) Add configurable timeouts to http server
- (rpc) [tharsis#988](https://github.com/tharsis/ethermint/pull/988) json-rpc server always use local rpc client

## [v0.10.1] - 2022-03-04

### Bug Fixes

* (rpc) [tharsis#970](https://github.com/tharsis/ethermint/pull/970) Fix unexpected nil reward values on `eth_feeHistory` response
* (evm) [tharsis#529](https://github.com/tharsis/ethermint/issues/529) Add support return value on trace tx response.

### Improvements

* (rpc) [tharsis#968](https://github.com/tharsis/ethermint/pull/968) Add some buffer to returned gas price to provide better default UX for client.

## [v0.10.0] - 2022-02-26

### API Breaking

* (ante) [tharsis#866](https://github.com/tharsis/ethermint/pull/866) `NewAnteHandler` constructor now receives a `HandlerOptions` field.
* (evm) [tharsis#849](https://github.com/tharsis/ethermint/pull/849) `PostTxProcessing` hook now takes an Ethereum tx `Receipt` and a `from` `Address` as arguments.
* (ante) [tharsis#916](https://github.com/tharsis/ethermint/pull/916) Don't check min-gas-price for eth tx if london hardfork enabled and feemarket enabled.

### State Machine Breaking

* (deps) [tharsis#912](https://github.com/tharsis/ethermint/pull/912) Bump Cosmos SDK version to [`v0.45.1`](https://github.com/cosmos/cosmos-sdk/releases/tag/v0.45.1)
* (evm) [tharsis#840](https://github.com/tharsis/ethermint/pull/840) Store empty topics as empty array rather than nil.
* (feemarket) [tharsis#822](https://github.com/tharsis/ethermint/pull/822) Update EIP1559 base fee in `BeginBlock`.
* (evm) [tharsis#817](https://github.com/tharsis/ethermint/pull/817) Use `effectiveGasPrice` in ante handler, add `effectiveGasPrice` to tx receipt.
* (evm) [tharsis#808](https://github.com/tharsis/ethermint/issues/808) increase nonce in ante handler for contract creation transaction.
* (evm) [tharsis#851](https://github.com/tharsis/ethermint/pull/851) fix contract address used in EVM, this issue is caused by [tharsis#808](https://github.com/tharsis/ethermint/issues/808).
* (evm)  Reject invalid `MsgEthereumTx` wrapping tx
* (evm)  Fix `SelfDestruct` opcode by deleting account code and state.
* (feemarket) [tharsis#855](https://github.com/tharsis/ethermint/pull/855) Consistent `BaseFee` check logic.
* (evm) [tharsis#729](https://github.com/tharsis/ethermint/pull/729) Refactor EVM `StateDB` implementation.
* (evm) [tharsis#945](https://github.com/tharsis/ethermint/pull/945) Bumb Go-ethereum version to [`v1.10.16`](https://github.com/ethereum/go-ethereum/releases/tag/v1.10.16)

### Features

* (ante) [tharsis#950](https://github.com/tharsis/ethermint/pull/950) Add support for EIP712 signed Cosmos transactions

### Improvements

* (types) [tharsis#884](https://github.com/tharsis/ethermint/pull/884) Introduce a new `EthAccountI` interface for EVM-compatible account types.
* (types) [tharsis#849](https://github.com/tharsis/ethermint/pull/849) Add `Type` function to distinguish EOAs from Contract accounts.
* (evm) [tharsis#826](https://github.com/tharsis/ethermint/issues/826) Improve allocation of bytes of `tx.To` address.
* (evm) [tharsis#827](https://github.com/tharsis/ethermint/issues/827) Speed up creation of event logs by using the slice insertion idiom with indices.
* (ante) [tharsis#819](https://github.com/tharsis/ethermint/pull/819) Remove redundant ante handlers
* (app) [tharsis#873](https://github.com/tharsis/ethermint/pull/873) Validate code hash in GenesisAccount
* (evm) [tharsis#901](https://github.com/tharsis/ethermint/pull/901) Support multiple `MsgEthereumTx` in single tx.
* (config) [tharsis#908](https://github.com/tharsis/ethermint/pull/908) Add `api.enable` flag for Cosmos SDK Rest server
* (feemarket) [tharsis#919](https://github.com/tharsis/ethermint/pull/919) Initialize baseFee in default genesis state.
* (feemarket) [tharsis#943](https://github.com/tharsis/ethermint/pull/943) Store the base fee as a module param instead of using state storage.

### Bug Fixes

* (rpc) [tharsis#955](https://github.com/tharsis/ethermint/pull/955) Fix websocket server push duplicated messages to subscriber.
* (rpc) [tharsis#953](https://github.com/tharsis/ethermint/pull/953) Add `eth_signTypedData` api support.
* (log) [tharsis#948](https://github.com/tharsis/ethermint/pull/948) Redirect go-ethereum's logs to cosmos-sdk logger.
* (evm) [tharsis#884](https://github.com/tharsis/ethermint/pull/884) Support multiple account types on the EVM `StateDB`.
* (rpc) [tharsis#831](https://github.com/tharsis/ethermint/pull/831) Fix BaseFee value when height is specified.
* (evm) [tharsis#838](https://github.com/tharsis/ethermint/pull/838) Fix splitting of trace.Memory into 32 chunks.
* (rpc) [tharsis#860](https://github.com/tharsis/ethermint/pull/860) Fix `eth_getLogs` when specify blockHash without address/topics, and limit the response size.
* (rpc) [tharsis#865](https://github.com/tharsis/ethermint/pull/865) Fix RPC Filter parameters being ignored
* (evm) [tharsis#871](https://github.com/tharsis/ethermint/pull/871) Set correct nonce in `EthCall` and `EstimateGas` grpc query.
* (rpc) [tharsis#878](https://github.com/tharsis/ethermint/pull/878) Workaround to make GetBlock RPC api report correct block gas used.
* (rpc) [tharsis#900](https://github.com/tharsis/ethermint/pull/900) `newPendingTransactions` filter return ethereum tx hash.
* (rpc) [tharsis#933](https://github.com/tharsis/ethermint/pull/933) Fix `newPendingTransactions` subscription deadlock when a Websocket client exits without unsubscribing and the node errors.
* (evm) [tharsis#932](https://github.com/tharsis/ethermint/pull/932) Fix base fee check logic in state transition.

## [v0.9.0] - 2021-12-01

### State Machine Breaking

* (evm) [tharsis#802](https://github.com/tharsis/ethermint/pull/802) Clear access list for each transaction

### Improvements

* (app) [tharsis#794](https://github.com/tharsis/ethermint/pull/794) Setup in-place store migrators.
* (ci) [tharsis#784](https://github.com/tharsis/ethermint/pull/784) Enable automatic backport of PRs.
* (rpc) [tharsis#786](https://github.com/tharsis/ethermint/pull/786) Improve error message of `SendTransaction`/`SendRawTransaction` JSON-RPC APIs.
* (rpc) [tharsis#810](https://github.com/tharsis/ethermint/pull/810) Optimize tx index lookup in web3 rpc

### Bug Fixes

* (license) [tharsis#800](https://github.com/tharsis/ethermint/pull/800) Re-license project to [LGPLv3](https://choosealicense.com/licenses/lgpl-3.0/#) to comply with go-ethereum.
* (evm) [tharsis#794](https://github.com/tharsis/ethermint/pull/794) Register EVM gRPC `Msg` server.
* (rpc) [tharsis#781](https://github.com/tharsis/ethermint/pull/781) Fix get block invalid transactions filter.
* (rpc) [tharsis#782](https://github.com/tharsis/ethermint/pull/782) Fix wrong block gas limit returned by JSON-RPC.
* (evm) [tharsis#798](https://github.com/tharsis/ethermint/pull/798) Fix the semantic of `ForEachStorage` callback's return value

## [v0.8.1] - 2021-11-23

### Bug Fixes

* (feemarket) [tharsis#770](https://github.com/tharsis/ethermint/pull/770) Enable fee market (EIP1559) by default.
* (rpc) [tharsis#769](https://github.com/tharsis/ethermint/pull/769) Fix default Ethereum signer for JSON-RPC.

## [v0.8.0] - 2021-11-17

### State Machine Breaking

* (evm, ante) [tharsis#620](https://github.com/tharsis/ethermint/pull/620) Add fee market field to EVM `Keeper` and `AnteHandler`.
* (all) [tharsis#231](https://github.com/tharsis/ethermint/pull/231) Bump go-ethereum version to [`v1.10.9`](https://github.com/ethereum/go-ethereum/releases/tag/v1.10.9)
* (ante) [tharsis#703](https://github.com/tharsis/ethermint/pull/703) Fix some fields in transaction are not authenticated by signature.
* (evm) [tharsis#751](https://github.com/tharsis/ethermint/pull/751) don't revert gas refund logic when transaction reverted

### Features

* (rpc, evm) [tharsis#673](https://github.com/tharsis/ethermint/pull/673) Use tendermint events to store fee market basefee.
* (rpc) [tharsis#624](https://github.com/tharsis/ethermint/pull/624) Implement new JSON-RPC endpoints from latest geth version
* (evm) [tharsis#662](https://github.com/tharsis/ethermint/pull/662) Disable basefee for non london blocks
* (cmd) [tharsis#712](https://github.com/tharsis/ethermint/pull/712) add tx cli to build evm transaction
* (rpc) [tharsis#733](https://github.com/tharsis/ethermint/pull/733) add JSON_RPC endpoint `personal_unpair`
* (rpc) [tharsis#734](https://github.com/tharsis/ethermint/pull/734) add JSON_RPC endpoint `eth_feeHistory`
* (rpc) [tharsis#740](https://github.com/tharsis/ethermint/pull/740) add JSON_RPC endpoint `personal_initializeWallet`
* (rpc) [tharsis#743](https://github.com/tharsis/ethermint/pull/743) add JSON_RPC endpoint `debug_traceBlockByHash`
* (rpc) [tharsis#748](https://github.com/tharsis/ethermint/pull/748) add JSON_RPC endpoint `personal_listWallets`
* (rpc) [tharsis#754](https://github.com/tharsis/ethermint/pull/754) add JSON_RPC endpoint `debug_intermediateRoots`

### Bug Fixes

* (evm) [tharsis#746](https://github.com/tharsis/ethermint/pull/746) Set EVM debugging based on tracer configuration.
* (app,cli) [tharsis#725](https://github.com/tharsis/ethermint/pull/725) Fix cli-config for  `keys` command.
* (rpc) [tharsis#727](https://github.com/tharsis/ethermint/pull/727) Decode raw transaction using RLP.
* (rpc) [tharsis#661](https://github.com/tharsis/ethermint/pull/661) Fix OOM bug when creating too many filters using JSON-RPC.
* (evm) [tharsis#660](https://github.com/tharsis/ethermint/pull/660) Fix `nil` pointer panic in `ApplyNativeMessage`.
* (evm, test) [tharsis#649](https://github.com/tharsis/ethermint/pull/649) Test DynamicFeeTx.
* (evm) [tharsis#702](https://github.com/tharsis/ethermint/pull/702) Fix panic in web3 RPC handlers
* (rpc) [tharsis#720](https://github.com/tharsis/ethermint/pull/720) Fix `debug_traceTransaction` failure
* (rpc) [tharsis#741](https://github.com/tharsis/ethermint/pull/741) Fix `eth_getBlockByNumberAndHash` return with non eth txs
* (rpc) [tharsis#743](https://github.com/tharsis/ethermint/pull/743) Fix debug JSON RPC handler crash on non-existing block

### Improvements

* (tests) [tharsis#704](https://github.com/tharsis/ethermint/pull/704) Introduce E2E testing framework for clients
* (deps) [tharsis#737](https://github.com/tharsis/ethermint/pull/737) Bump ibc-go to [`v2.0.0`](https://github.com/cosmos/ibc-go/releases/tag/v2.0.0)
* (rpc) [tharsis#671](https://github.com/tharsis/ethermint/pull/671) Don't pass base fee externally for `EthCall`/`EthEstimateGas` apis.
* (evm) [tharsis#674](https://github.com/tharsis/ethermint/pull/674) Refactor `ApplyMessage`, remove
  `ApplyNativeMessage`.
* (rpc) [tharsis#714](https://github.com/tharsis/ethermint/pull/714) remove `MsgEthereumTx` support in `TxConfig`

## [v0.7.2] - 2021-10-24

### Improvements

* (deps) [tharsis#692](https://github.com/tharsis/ethermint/pull/692) Bump Cosmos SDK version to [`v0.44.3`](https://github.com/cosmos/cosmos-sdk/releases/tag/v0.44.3).
* (rpc) [tharsis#679](https://github.com/tharsis/ethermint/pull/679) Fix file close handle.
* (deps) [tharsis#668](https://github.com/tharsis/ethermint/pull/668) Bump Tendermint version to [`v0.34.14`](https://github.com/tendermint/tendermint/releases/tag/v0.34.14).

### Bug Fixes

* (rpc) [tharsis#667](https://github.com/tharsis/ethermint/issues/667) Fix `ExpandHome` restrictions bypass

## [v0.7.1] - 2021-10-08

### Bug Fixes

* (evm) [tharsis#650](https://github.com/tharsis/ethermint/pull/650) Fix panic when flattening the cache context in case transaction is reverted.
* (rpc, test) [tharsis#608](https://github.com/tharsis/ethermint/pull/608) Fix rpc test.

## [v0.7.0] - 2021-10-07

### API Breaking

* (rpc) [tharsis#400](https://github.com/tharsis/ethermint/issues/400) Restructure JSON-RPC directory and rename server config

### Improvements

* (deps) [tharsis#621](https://github.com/tharsis/ethermint/pull/621) Bump IBC-go to [`v1.2.1`](https://github.com/cosmos/ibc-go/releases/tag/v1.2.1)
* (evm) [tharsis#613](https://github.com/tharsis/ethermint/pull/613) Refactor `traceTx`
* (deps) [tharsis#610](https://github.com/tharsis/ethermint/pull/610) Bump Cosmos SDK to [v0.44.1](https://github.com/cosmos/cosmos-sdk/releases/tag/v0.44.1).

### Bug Fixes

* (rpc) [tharsis#642](https://github.com/tharsis/ethermint/issues/642) Fix `eth_getLogs` when string is specified in filter's from or to fields
* (evm) [tharsis#616](https://github.com/tharsis/ethermint/issues/616) Fix halt on deeply nested stack of cache context. Stack is now flattened before iterating over the tx logs.
* (rpc, evm) [tharsis#614](https://github.com/tharsis/ethermint/issues/614) Use JSON for (un)marshaling tx `Log`s from events.
* (rpc) [tharsis#611](https://github.com/tharsis/ethermint/pull/611) Fix panic on JSON-RPC when querying for an invalid block height.
* (cmd) [tharsis#483](https://github.com/tharsis/ethermint/pull/483) Use config values on genesis accounts.

## [v0.6.0] - 2021-09-29

### State Machine Breaking

* (app) [tharsis#476](https://github.com/tharsis/ethermint/pull/476) Update Bech32 HRP to `ethm`.
* (evm) [tharsis#556](https://github.com/tharsis/ethermint/pull/556) Remove tx logs and block bloom from chain state
* (evm) [tharsis#590](https://github.com/tharsis/ethermint/pull/590) Contract storage key is not hashed anymore

### API Breaking

* (evm) [tharsis#469](https://github.com/tharsis/ethermint/pull/469) Deprecate `YoloV3Block` and `EWASMBlock` from `ChainConfig`

### Features

* (evm) [tharsis#469](https://github.com/tharsis/ethermint/pull/469) Support [EIP-1559](https://eips.ethereum.org/EIPS/eip-1559)
* (evm) [tharsis#417](https://github.com/tharsis/ethermint/pull/417) Add `EvmHooks` for tx post-processing
* (rpc) [tharsis#506](https://github.com/tharsis/ethermint/pull/506) Support for `debug_traceTransaction` RPC endpoint
* (rpc) [tharsis#555](https://github.com/tharsis/ethermint/pull/555) Support for `debug_traceBlockByNumber` RPC endpoint

### Bug Fixes

* (rpc, server) [tharsis#600](https://github.com/tharsis/ethermint/pull/600) Add TLS configuration for websocket API
* (rpc) [tharsis#598](https://github.com/tharsis/ethermint/pull/598) Check truncation when creating a `BlockNumber` from `big.Int`
* (evm) [tharsis#597](https://github.com/tharsis/ethermint/pull/597) Check for `uint64` -> `int64` block height overflow on `GetHashFn`
* (evm) [tharsis#579](https://github.com/tharsis/ethermint/pull/579) Update `DeriveChainID` function to handle `v` signature values `< 35`.
* (encoding) [tharsis#478](https://github.com/tharsis/ethermint/pull/478) Register `Evidence` to amino codec.
* (rpc) [tharsis#478](https://github.com/tharsis/ethermint/pull/481) Getting the node configuration when calling the `miner` rpc methods.
* (cli) [tharsis#561](https://github.com/tharsis/ethermint/pull/561) `Export` and `Start` commands now use the same home directory.

### Improvements

* (evm) [tharsis#461](https://github.com/tharsis/ethermint/pull/461) Increase performance of `StateDB` transaction log storage (r/w).
* (evm) [tharsis#566](https://github.com/tharsis/ethermint/pull/566) Introduce `stateErr` store in `StateDB` to avoid meaningless operations if any error happened before
* (rpc, evm) [tharsis#587](https://github.com/tharsis/ethermint/pull/587) Apply bloom filter when query ethlogs with range of blocks
* (evm) [tharsis#586](https://github.com/tharsis/ethermint/pull/586) Benchmark evm keeper

## [v0.5.0] - 2021-08-20

### State Machine Breaking

* (app, rpc) [tharsis#447](https://github.com/tharsis/ethermint/pull/447) Chain ID format has been changed from `<identifier>-<epoch>` to `<identifier>_<EIP155_number>-<epoch>`
in order to clearly distinguish permanent vs impermanent components.
* (app, evm) [tharsis#434](https://github.com/tharsis/ethermint/pull/434) EVM `Keeper` struct and `NewEVM` function now have a new `trace` field to define
the Tracer type used to collect execution traces from the EVM transaction execution.
* (evm) [tharsis#175](https://github.com/tharsis/ethermint/issues/175) The msg `TxData` field is now represented as a `*proto.Any`.
* (evm) [tharsis#84](https://github.com/tharsis/ethermint/pull/84) Remove `journal`, `CommitStateDB` and `stateObjects`.
* (rpc, evm) [tharsis#81](https://github.com/tharsis/ethermint/pull/81) Remove tx `Receipt` from store and replace it with fields obtained from the Tendermint RPC client.
* (evm) [tharsis#72](https://github.com/tharsis/ethermint/issues/72) Update `AccessList` to use `TransientStore` instead of map.
* (evm) [tharsis#68](https://github.com/tharsis/ethermint/issues/68) Replace block hash storage map to use staking `HistoricalInfo`.
* (evm) [tharsis#276](https://github.com/tharsis/ethermint/pull/276) Vm errors don't result in cosmos tx failure, just
  different tx state and events.
* (evm) [tharsis#342](https://github.com/tharsis/ethermint/issues/342) Don't clear balance when resetting the account.
* (evm) [tharsis#334](https://github.com/tharsis/ethermint/pull/334) Log index changed to the index in block rather than
  tx.
* (evm) [tharsis#399](https://github.com/tharsis/ethermint/pull/399) Exception in sub-message call reverts the call if it's not propagated.

### API Breaking

* (proto) [tharsis#448](https://github.com/tharsis/ethermint/pull/448) Bump version for all Ethermint messages to `v1`
* (server) [tharsis#434](https://github.com/tharsis/ethermint/pull/434) `evm-rpc` flags and app config have been renamed to `json-rpc`.
* (proto, evm) [tharsis#207](https://github.com/tharsis/ethermint/issues/207) Replace `big.Int` in favor of `sdk.Int` for `TxData` fields
* (proto, evm) [tharsis#81](https://github.com/tharsis/ethermint/pull/81) gRPC Query and Tx service changes:
  * The `TxReceipt`, `TxReceiptsByBlockHeight` endpoints have been removed from the Query service.
  * The `ContractAddress`, `Bloom` have been removed from the `MsgEthereumTxResponse` and the
    response now contains the ethereum-formatted `Hash` in hex format.
* (eth) [tharsis#845](https://github.com/cosmos/ethermint/pull/845) The `eth` namespace must be included in the list of API's as default to run the rpc server without error.
* (evm) [tharsis#202](https://github.com/tharsis/ethermint/pull/202) Web3 api `SendTransaction`/`SendRawTransaction` returns ethereum compatible transaction hash, and query api `GetTransaction*` also accept that.
* (rpc) [tharsis#258](https://github.com/tharsis/ethermint/pull/258) Return empty `BloomFilter` instead of throwing an error when it cannot be found (`nil` or empty).
* (rpc) [tharsis#277](https://github.com/tharsis/ethermint/pull/321) Fix `BloomFilter` response.

### Improvements

* (client) [tharsis#450](https://github.com/tharsis/ethermint/issues/450) Add EIP55 hex address support on `debug addr` command.
* (server) [tharsis#343](https://github.com/tharsis/ethermint/pull/343) Define a wrap tendermint logger `Handler` go-ethereum's `root` logger.
* (rpc) [tharsis#457](https://github.com/tharsis/ethermint/pull/457) Configure RPC gas cap through app config.
* (evm) [tharsis#434](https://github.com/tharsis/ethermint/pull/434) Support different `Tracer` types for the EVM.
* (deps) [tharsis#427](https://github.com/tharsis/ethermint/pull/427) Bump ibc-go to [`v1.0.0`](https://github.com/cosmos/ibc-go/releases/tag/v1.0.0)
* (gRPC) [tharsis#239](https://github.com/tharsis/ethermint/pull/239) Query `ChainConfig` via gRPC.
* (rpc) [tharsis#181](https://github.com/tharsis/ethermint/pull/181) Use evm denomination for params on tx fee.
* (deps) [tharsis#423](https://github.com/tharsis/ethermint/pull/423) Bump Cosmos SDK and Tendermint versions to [v0.43.0](https://github.com/cosmos/cosmos-sdk/releases/tag/v0.43.0) and [v0.34.11](https://github.com/tendermint/tendermint/releases/tag/v0.34.11), respectively.
* (evm) [tharsis#66](https://github.com/tharsis/ethermint/issues/66) Support legacy transaction types for signing.
* (evm) [tharsis#24](https://github.com/tharsis/ethermint/pull/24) Implement metrics for `MsgEthereumTx`, state transitions, `BeginBlock` and `EndBlock`.
* (rpc)  [tharsis#124](https://github.com/tharsis/ethermint/issues/124) Implement `txpool_content`, `txpool_inspect` and `txpool_status` RPC methods
* (rpc) [tharsis#112](https://github.com/tharsis/ethermint/pull/153) Fix `eth_coinbase` to return the ethereum address of the validator
* (rpc) [tharsis#176](https://github.com/tharsis/ethermint/issues/176) Support fetching pending nonce
* (rpc) [tharsis#272](https://github.com/tharsis/ethermint/pull/272) do binary search to estimate gas accurately
* (rpc) [tharsis#313](https://github.com/tharsis/ethermint/pull/313) Implement internal debug namespace (Not including logger functions nor traces).
* (rpc) [tharsis#349](https://github.com/tharsis/ethermint/pull/349) Implement configurable JSON-RPC APIs to manage enabled namespaces.
* (rpc) [tharsis#377](https://github.com/tharsis/ethermint/pull/377) Implement `miner_` namespace. `miner_setEtherbase` and `miner_setGasPrice` are working as intended. All the other calls are not applicable and return `unsupported`.
* (eth) [tharsis#460](https://github.com/tharsis/ethermint/issues/460) Add support for EIP-1898.

### Bug Fixes

* (keys) [tharsis#346](https://github.com/tharsis/ethermint/pull/346) Fix `keys add` command with `--ledger` flag for the `secp256k1` signing algorithm.
* (evm) [tharsis#291](https://github.com/tharsis/ethermint/pull/291) Use block proposer address (validator operator) for `COINBASE` opcode.
* (rpc) [tharsis#81](https://github.com/tharsis/ethermint/pull/81) Fix transaction hashing and decoding on `eth_sendTransaction`.
* (rpc) [tharsis#45](https://github.com/tharsis/ethermint/pull/45) Use `EmptyUncleHash` and `EmptyRootHash` for empty ethereum `Header` fields.

## [v0.4.1] - 2021-03-01

### API Breaking

* (faucet) [tharsis#678](https://github.com/cosmos/ethermint/pull/678) Faucet module has been removed in favor of client libraries such as [`@cosmjs/faucet`](https://github.com/cosmos/cosmjs/tree/master/packages/faucet).
* (evm) [tharsis#670](https://github.com/cosmos/ethermint/pull/670) Migrate types to the ones defined by the protobuf messages, which are required for the stargate release.

### Bug Fixes

* (evm) [tharsis#799](https://github.com/cosmos/ethermint/issues/799) Fix wrong precision in calculation of gas fee.
* (evm) [tharsis#760](https://github.com/cosmos/ethermint/issues/760) Fix Failed to call function EstimateGas.
* (evm) [tharsis#767](https://github.com/cosmos/ethermint/issues/767) Fix error of timeout when using Truffle to deploy contract.
* (evm) [tharsis#751](https://github.com/cosmos/ethermint/issues/751) Fix misused method to calculate block hash in evm related function.
* (evm) [tharsis#721](https://github.com/cosmos/ethermint/issues/721) Fix mismatch block hash in rpc response when use eht.getBlock.
* (evm) [tharsis#730](https://github.com/cosmos/ethermint/issues/730) Fix 'EIP2028' not open when Istanbul version has been enabled.
* (evm) [tharsis#749](https://github.com/cosmos/ethermint/issues/749) Fix panic in `AnteHandler` when gas price larger than 100000
* (evm) [tharsis#747](https://github.com/cosmos/ethermint/issues/747) Fix format errors in String() of QueryETHLogs
* (evm) [tharsis#742](https://github.com/cosmos/ethermint/issues/742) Add parameter check for evm query func.
* (evm) [tharsis#687](https://github.com/cosmos/ethermint/issues/687) Fix nonce check to explicitly check for the correct nonce, rather than a simple 'greater than' comparison.
* (api) [tharsis#687](https://github.com/cosmos/ethermint/issues/687) Returns error for a transaction with an incorrect nonce.
* (evm) [tharsis#674](https://github.com/cosmos/ethermint/issues/674) Reset all cache after account data has been committed in `EndBlock` to make sure every node state consistent.
* (evm) [tharsis#672](https://github.com/cosmos/ethermint/issues/672) Fix panic of `wrong Block.Header.AppHash` when restart a node with snapshot.
* (evm) [tharsis#775](https://github.com/cosmos/ethermint/issues/775) MisUse of headHash as blockHash when create EVM context.

### Features
* (api) [tharsis#821](https://github.com/cosmos/ethermint/pull/821) Individually enable the api modules. Will be implemented in the latest version of ethermint with the upcoming stargate upgrade.

### Features
* (api) [tharsis#825](https://github.com/cosmos/ethermint/pull/825) Individually enable the api modules. Will be implemented in the latest version of ethermint with the upcoming stargate upgrade.

## [v0.4.0] - 2020-12-15

### API Breaking

* (evm) [tharsis#661](https://github.com/cosmos/ethermint/pull/661) `Balance` field has been removed from the evm module's `GenesisState`.

### Features

* (rpc) [tharsis#571](https://github.com/cosmos/ethermint/pull/571) Add pending queries to JSON-RPC calls. This allows for the querying of pending transactions and other relevant information that pertains to the pending state:
  * `eth_getBalance`
  * `eth_getTransactionCount`
  * `eth_getBlockTransactionCountByNumber`
  * `eth_getBlockByNumber`
  * `eth_getTransactionByHash`
  * `eth_getTransactionByBlockNumberAndIndex`
  * `eth_sendTransaction` - the nonce will automatically update to its pending nonce (when none is explicitly provided)

### Improvements

* (evm) [tharsis#661](https://github.com/cosmos/ethermint/pull/661) Add invariant check for account balance and account nonce.
* (deps) [tharsis#654](https://github.com/cosmos/ethermint/pull/654) Bump go-ethereum version to [v1.9.25](https://github.com/ethereum/go-ethereum/releases/tag/v1.9.25)
* (evm) [tharsis#627](https://github.com/cosmos/ethermint/issues/627) Add extra EIPs parameter to apply custom EVM jump tables.

### Bug Fixes

* (evm) [tharsis#661](https://github.com/cosmos/ethermint/pull/661) Set nonce to the EVM account on genesis initialization.
* (rpc) [tharsis#648](https://github.com/cosmos/ethermint/issues/648) Fix block cumulative gas used value.
* (evm) [tharsis#621](https://github.com/cosmos/ethermint/issues/621) EVM `GenesisAccount` fields now share the same format as the auth module `Account`.
* (evm) [tharsis#618](https://github.com/cosmos/ethermint/issues/618) Add missing EVM `Context` `GetHash` field that retrieves a the header hash from a given block height.
* (app) [tharsis#617](https://github.com/cosmos/ethermint/issues/617) Fix genesis export functionality.
* (rpc) [tharsis#574](https://github.com/cosmos/ethermint/issues/574) Fix outdated version from `eth_protocolVersion`.

## [v0.3.1] - 2020-11-24

### Improvements

* (deps) [tharsis#615](https://github.com/cosmos/ethermint/pull/615) Bump Cosmos SDK version to [v0.39.2](https://github.com/cosmos/cosmos-sdk/tag/v0.39.2)
* (deps) [tharsis#610](https://github.com/cosmos/ethermint/pull/610) Update Go dependency to 1.15+.
* (evm) [tharsis#603](https://github.com/cosmos/ethermint/pull/603) Add state transition params that enable or disable the EVM `Call` and `Create` operations.
* (deps) [tharsis#602](https://github.com/cosmos/ethermint/pull/602) Bump tendermint version to [v0.33.9](https://github.com/tendermint/tendermint/releases/tag/v0.33.9)

### Bug Fixes

* (rpc) [tharsis#613](https://github.com/cosmos/ethermint/issues/613) Fix potential deadlock caused if the keyring `List` returned an error.

## [v0.3.0] - 2020-11-16

### API Breaking

* (crypto) [tharsis#559](https://github.com/cosmos/ethermint/pull/559) Refactored crypto package in preparation for the SDK's Stargate release:
  * `crypto.PubKeySecp256k1` and `crypto.PrivKeySecp256k1` are now `ethsecp256k1.PubKey` and `ethsecp256k1.PrivKey`, respectively
  * Moved SDK `SigningAlgo` implementation for Ethermint's Secp256k1 key to `crypto/hd` package.
* (rpc) [tharsis#588](https://github.com/cosmos/ethermint/pull/588) The `rpc` package has been refactored to account for the separation of each
corresponding Ethereum API namespace:
  * `rpc/namespaces/eth`: `eth` namespace. Exposes the `PublicEthereumAPI` and the `PublicFilterAPI`.
  * `rpc/namespaces/personal`: `personal` namespace. Exposes the `PrivateAccountAPI`.
  * `rpc/namespaces/net`: `net` namespace. Exposes the `PublicNetAPI`.
  * `rpc/namespaces/web3`: `web3` namespace. Exposes the `PublicWeb3API`.
* (evm) [tharsis#588](https://github.com/cosmos/ethermint/pull/588) The EVM transaction CLI has been removed in favor of the JSON-RPC.

### Improvements

* (deps) [tharsis#594](https://github.com/cosmos/ethermint/pull/594) Bump go-ethereum version to [v1.9.24](https://github.com/ethereum/go-ethereum/releases/tag/v1.9.24)

### Bug Fixes

* (ante) [tharsis#597](https://github.com/cosmos/ethermint/pull/597) Fix incorrect fee check on `AnteHandler`.
* (evm) [tharsis#583](https://github.com/cosmos/ethermint/pull/583) Fixes incorrect resetting of tx count and block bloom during `BeginBlock`, as well as gas consumption.
* (crypto) [tharsis#577](https://github.com/cosmos/ethermint/pull/577) Fix `BIP44HDPath` that did not prepend `m/` to the path. This now uses the `DefaultBaseDerivationPath` variable from go-ethereum to ensure addresses are consistent.

## [v0.2.1] - 2020-09-30

### Features

* (rpc) [tharsis#552](https://github.com/cosmos/ethermint/pull/552) Implement Eth Personal namespace `personal_importRawKey`.

### Bug fixes

* (keys) [tharsis#554](https://github.com/cosmos/ethermint/pull/554) Fix private key derivation.
* (app/ante) [tharsis#550](https://github.com/cosmos/ethermint/pull/550) Update ante handler nonce verification to accept any nonce greater than or equal to the expected nonce to allow to successive transactions.

## [v0.2.0] - 2020-09-24

### State Machine Breaking

* (app) [tharsis#540](https://github.com/cosmos/ethermint/issues/540) Chain identifier's format has been changed to match the Cosmos `chainID` [standard](https://github.com/ChainAgnostic/CAIPs/blob/master/CAIPs/caip-5.md), which is required for IBC. The epoch number of the ID is used as the EVM `chainID`.

### API Breaking

* (types) [tharsis#503](https://github.com/cosmos/ethermint/pull/503) The `types.DenomDefault` constant for `"aphoton"` has been renamed to `types.AttoPhoton`.

### Improvements

* (types) [tharsis#504](https://github.com/cosmos/ethermint/pull/504) Unmarshal a JSON `EthAccount` using an Ethereum hex address in addition to Bech32.
* (types) [tharsis#503](https://github.com/cosmos/ethermint/pull/503) Add `--coin-denom` flag to testnet command that sets the given coin denomination to SDK and Ethermint parameters.
* (types) [tharsis#502](https://github.com/cosmos/ethermint/pull/502) `EthAccount` now also exposes the Ethereum hex address in `string` format to clients.
* (types) [tharsis#494](https://github.com/cosmos/ethermint/pull/494) Update `EthAccount` public key JSON type to `string`.
* (app) [tharsis#471](https://github.com/cosmos/ethermint/pull/471) Add `x/upgrade` module for managing software updates.
* (evm) [tharsis#458](https://github.com/cosmos/ethermint/pull/458) Define parameter for token denomination used for the EVM module.
* (evm) [tharsis#443](https://github.com/cosmos/ethermint/issues/443) Support custom Ethereum `ChainConfig` params.
* (types) [tharsis#434](https://github.com/cosmos/ethermint/issues/434) Update default denomination to Atto Photon (`aphoton`).
* (types) [tharsis#515](https://github.com/cosmos/ethermint/pull/515) Update minimum gas price to be 1.

### Bug Fixes

* (ante) [tharsis#525](https://github.com/cosmos/ethermint/pull/525) Add message validation decorator to `AnteHandler` for `MsgEthereumTx`.
* (types) [tharsis#507](https://github.com/cosmos/ethermint/pull/507) Fix hardcoded `aphoton` on `EthAccount` balance getter and setter.
* (types) [tharsis#501](https://github.com/cosmos/ethermint/pull/501) Fix bech32 encoding error by using the compressed ethereum secp256k1 public key.
* (evm) [tharsis#496](https://github.com/cosmos/ethermint/pull/496) Fix bugs on `journal.revert` and `CommitStateDB.Copy`.
* (types) [tharsis#480](https://github.com/cosmos/ethermint/pull/480) Update [BIP44](https://github.com/bitcoin/bips/blob/master/bip-0044.mediawiki) coin type to `60` to satisfy [EIP84](https://github.com/ethereum/EIPs/issues/84).
* (types) [tharsis#513](https://github.com/cosmos/ethermint/pull/513) Fix simulated transaction bug that was causing a consensus error by unintentionally affecting the state.

## [v0.1.0] - 2020-08-23

### Improvements

* (sdk) [tharsis#386](https://github.com/cosmos/ethermint/pull/386) Bump Cosmos SDK version to [v0.39.1](https://github.com/cosmos/cosmos-sdk/releases/tag/v0.39.1)
* (evm) [tharsis#181](https://github.com/cosmos/ethermint/issues/181) Updated EVM module to the recommended module structure.
* (app) [tharsis#188](https://github.com/cosmos/ethermint/issues/186)  Misc cleanup:
  * (evm) Rename `EthereumTxMsg` --> `MsgEthereumTx` and `EmintMsg` --> `MsgEthermint` for consistency with SDK standards
  * Updated integration and unit tests to use `EthermintApp` as testing suite
  * Use expected `Keeper` interface for `AccountKeeper`
  * Replaced `count` type in keeper with `int`
  * Add SDK events for transactions
* [tharsis#236](https://github.com/cosmos/ethermint/pull/236) Changes from upgrade:
  * (`app/ante`) Moved `AnteHandler` implementation to `app/ante`
  * (keys) Marked `ExportEthKeyCommand` as **UNSAFE**
  * (evm) Moved `BeginBlock` and `EndBlock` to `x/evm/abci.go`
* (evm) [tharsis#255](https://github.com/cosmos/ethermint/pull/255) Add missing `GenesisState` fields and support `ExportGenesis` functionality.
* [tharsis#272](https://github.com/cosmos/ethermint/pull/272) Add `Logger` for evm module.
* [tharsis#317](https://github.com/cosmos/ethermint/pull/317) `GenesisAccount` validation.
* (evm) [tharsis#319](https://github.com/cosmos/ethermint/pull/319) Various evm improvements:
  * Add transaction `[]*ethtypes.Logs` to evm's `GenesisState` to persist logs after an upgrade.
  * Remove evm `CodeKey` and `BlockKey`in favor of a prefix `Store`.
  * Set `BlockBloom` during `EndBlock` instead of `BeginBlock`.
  * `Commit` state object and `Finalize` storage after `InitGenesis` setup.
* (rpc) [tharsis#325](https://github.com/cosmos/ethermint/pull/325) `eth_coinbase` JSON-RPC query now returns the node's validator address.

### Features

* (build) [tharsis#378](https://github.com/cosmos/ethermint/pull/378) Create multi-node, local, automated testnet setup with `make localnet-start`.
* (rpc) [tharsis#330](https://github.com/cosmos/ethermint/issues/330) Implement `PublicFilterAPI`'s `EventSystem` which subscribes to Tendermint events upon `Filter` creation.
* (rpc) [tharsis#231](https://github.com/cosmos/ethermint/issues/231) Implement `NewBlockFilter` in rpc/filters.go which instantiates a polling block filter
  * Polls for new blocks via `BlockNumber` rpc call; if block number changes, it requests the new block via `GetBlockByNumber` rpc call and adds it to its internal list of blocks
  * Update `uninstallFilter` and `getFilterChanges` accordingly
  * `uninstallFilter` stops the polling goroutine
  * `getFilterChanges` returns the filter's internal list of block hashes and resets it
* (rpc) [tharsis#54](https://github.com/cosmos/ethermint/issues/54), [tharsis#55](https://github.com/cosmos/ethermint/issues/55)
  Implement `eth_getFilterLogs` and `eth_getLogs`:
  * For a given filter, look through each block for transactions. If there are transactions in the block, get the logs from it, and filter using the filterLogs method
  * `eth_getLogs` and `eth_getFilterChanges` for log filters use the same underlying method as `eth_getFilterLogs`
  * update `HandleMsgEthereumTx` to store logs using the ethereum hash
* (app) [tharsis#187](https://github.com/cosmos/ethermint/issues/187) Add support for simulations.

### Bug Fixes

* (evm) [tharsis#767](https://github.com/cosmos/ethermint/issues/767) Fix error of timeout when using Truffle to deploy contract.
* (evm) [tharsis#751](https://github.com/cosmos/ethermint/issues/751) Fix misused method to calculate block hash in evm related function.
* (evm) [tharsis#721](https://github.com/cosmos/ethermint/issues/721) Fix mismatch block hash in rpc response when use eth.getBlock.
* (evm) [tharsis#730](https://github.com/cosmos/ethermint/issues/730) Fix 'EIP2028' not open when Istanbul version has been enabled.
* (app) [tharsis#749](https://github.com/cosmos/ethermint/issues/749) Fix panic in `AnteHandler` when gas price larger than 100000
* (rpc) [tharsis#305](https://github.com/cosmos/ethermint/issues/305) Update `eth_getTransactionCount` to check for account existence before getting sequence and return 0 as the nonce if it doesn't exist.
* (evm) [tharsis#319](https://github.com/cosmos/ethermint/pull/319) Fix `SetBlockHash` that was setting the incorrect height during `BeginBlock`.
* (evm) [tharsis#176](https://github.com/cosmos/ethermint/issues/176) Updated Web3 transaction hash from using RLP hash. Now all transaction hashes exposed are amino hashes:
  * Removes `Hash()` (RLP) function from `MsgEthereumTx` to avoid confusion or misuse in future.