> ## Documentation Index
> Fetch the complete documentation index at: https://cosmos-docs-sync-security-docs.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Changelog

> Release history and changelog for Cosmos EVM

<Info>
  This page tracks releases and changes for version 0.5.x from the [cosmos/evm](https://github.com/cosmos/evm) repository.
  For all releases, see the [next](/evm/next/changelog/release-notes) version.
</Info>

<Update label="Release" description="v0.5.0" tags={["EVM", "Release"]}>
  ## BUG FIXES

  * [#471](https://github.com/cosmos/evm/pull/471) Notify new block for mempool in time
  * [#492](https://github.com/cosmos/evm/pull/492) Duplicate case switch to avoid empty execution block
  * [#509](https://github.com/cosmos/evm/pull/509) Allow value with slashes when query token\_pairs
  * [#495](https://github.com/cosmos/evm/pull/495) Allow immediate SIGINT interrupt when mempool is not empty
  * [#416](https://github.com/cosmos/evm/pull/416) Fix regression in CometBlockResultByNumber when height is 0 to use the latest block. This fixes eth\_getFilterLogs RPC.
  * [#545](https://github.com/cosmos/evm/pull/545) Check if mempool is not nil before accepting nonce gap error tx.
  * [#585](https://github.com/cosmos/evm/pull/585) Use zero constructor to avoid nil pointer panic when BaseFee is 0
  * [#591](https://github.com/cosmos/evm/pull/591) CheckTxHandler should handle "invalid nonce" tx
  * [#642](https://github.com/cosmos/evm/pull/642) "tx not found in mempool" error on chain startup
  * [#643](https://github.com/cosmos/evm/pull/643) Support for mnemonic source (file, stdin,etc) flag in key add command.
  * [#645](https://github.com/cosmos/evm/pull/645) Align precise bank keeper for correct decimal conversion in evmd.
  * [#656](https://github.com/cosmos/evm/pull/656) Fix race condition in concurrent usage of mempool StateAt and NotifyNewBlock methods.
  * [#658](https://github.com/cosmos/evm/pull/658) Fix race condition between legacypool's RemoveTx and runReorg.
  * [#687](https://github.com/cosmos/evm/pull/687) Avoid blocking node shutdown when evm indexer is enabled, log startup failures instead of using errgroup.
  * [#689](https://github.com/cosmos/evm/pull/689) Align debug addr for hex address.
  * [#668](https://github.com/cosmos/evm/pull/668) Fix panic in legacy mempool when Reset() was called with a skipped header between old and new block.
  * [#723](https://github.com/cosmos/evm/pull/723) Fix TransactionIndex in receipt generation to use actual EthTxIndex instead of loop index.
  * [#729](https://github.com/cosmos/evm/pull/729) Remove non-deterministic state mutation from EVM pre-blocker.
  * [#725](https://github.com/cosmos/evm/pull/725) Fix inconsistent block hash in json-rpc.
  * [#727](https://github.com/cosmos/evm/pull/727) Avoid nil pointer for `tx evm raw` due to uninitialized EVM coin info.
  * [#730](https://github.com/cosmos/evm/pull/730) Fix panic if evm mempool not used.
  * [#733](https://github.com/cosmos/evm/pull/733) Avoid rejecting tx with unsupported extension option for ExtensionOptionDynamicFeeTx.
  * [#736](https://github.com/cosmos/evm/pull/736) Add InitEvmCoinInfo upgrade to avoid panic when denom is not registered.
  * [#732](https://github.com/cosmos/evm/pull/732) Fix gas meter race condition in integration tests

  ## IMPROVEMENTS

  * [#708](https://github.com/cosmos/evm/pull/708) Add configurable testnet validator powers
  * [#698](https://github.com/cosmos/evm/pull/698) Expose mempool configuration flags and move mempool configuration in app.go to helper
  * [#538](https://github.com/cosmos/evm/pull/538) Optimize `eth_estimateGas` gRPC path: short-circuit plain transfers, add optimistic gas bound based on `MaxUsedGas`.
  * [#513](https://github.com/cosmos/evm/pull/513) Replace `TestEncodingConfig` with production `EncodingConfig` in encoding package to remove test dependencies from production code.
  * [#467](https://github.com/cosmos/evm/pull/467) Replace GlobalEVMMempool by passing to JSONRPC on initiate.
  * [#352](https://github.com/cosmos/evm/pull/352) Remove the creation of a Geth EVM instance, stateDB during the AnteHandler balance check.
  * [#496](https://github.com/cosmos/evm/pull/496) Simplify mempool instantiation by using configs instead of objects.
  * [#512](https://github.com/cosmos/evm/pull/512) Add integration test for appside mempool.
  * [#568](https://github.com/cosmos/evm/pull/568) Avoid unnecessary block notifications when the event bus is already set up.
  * [#511](https://github.com/cosmos/evm/pull/511) Minor code cleanup for `AddPrecompileFn`.
  * [#576](https://github.com/cosmos/evm/pull/576) Parse logs from the txResult.Data and avoid emitting EVM events to cosmos-sdk events.
  * [#584](https://github.com/cosmos/evm/pull/584) Fill block hash and timestamp for json rpc.
  * [#582](https://github.com/cosmos/evm/pull/582) Add block max-gas (from genesis.json) and new min-tip (from app.toml/flags) ingestion into mempool config
  * [#580](https://github.com/cosmos/evm/pull/580) add appside mempool e2e test
  * [#598](https://github.com/cosmos/evm/pull/598) Reduce number of times CreateQueryContext in mempool.
  * [#606](https://github.com/cosmos/evm/pull/606) Regenerate mock file for bank keeper related test.
  * [#609](https://github.com/cosmos/evm/pull/609) Make `erc20Keeper` optional in the EVM keeper
  * [#624](https://github.com/cosmos/evm/pull/624) Cleanup unnecessary `fix-revert-gas-refund-height`.
  * [#635](https://github.com/cosmos/evm/pull/635) Move DefaultStaticPrecompiles to /evm and allow projects to set it by default alongside the keeper.
  * [#639](https://github.com/cosmos/evm/pull/639) Remove `/types` and move types into respective folders.
  * [#630](https://github.com/cosmos/evm/pull/630) Reduce feemarket parameter loading to minimize memory allocations.
  * [#577](https://github.com/cosmos/evm/pull/577) Cleanup precompiles boilerplate code.
  * [#648](https://github.com/cosmos/evm/pull/648) Move all `ante` logic such as `NewAnteHandler` from the `evmd` package to `evm/ante` so it can be used as library functions.
  * [#659](https://github.com/cosmos/evm/pull/659) Move configs out of EVMD and deduplicate configs
  * [#664](https://github.com/cosmos/evm/pull/664) Add EIP-7702 integration test
  * [#684](https://github.com/cosmos/evm/pull/684) Add unit test cases for EIP-7702
  * [#685](https://github.com/cosmos/evm/pull/685) Add EIP-7702 e2e test
  * [#680](https://github.com/cosmos/evm/pull/680) Introduce a `StaticPrecompiles` builder
  * [#701](https://github.com/cosmos/evm/pull/701) Add address codec support to ERC20 IBC callbacks to handle hex addresses in addition to bech32 addresses.
  * [#704](https://github.com/cosmos/evm/pull/704) Fix EIP-7702 test cases
  * [#709](https://github.com/cosmos/evm/pull/709) Fix mempool e2e test
  * [#710](https://github.com/cosmos/evm/pull/710) Fix EoA-CA Identification logic
  * [#711](https://github.com/cosmos/evm/pull/711) Add debug\_traceCall api
  * [#720](https://github.com/cosmos/evm/pull/720) Refactor systemtests
  * [#734](https://github.com/cosmos/evm/pull/734) Disable evm mempool if max-txs set to -1.
  * [#743](https://github.com/cosmos/evm/pull/743) Apply state overrides to eth\_estimateGas api

  ## FEATURES

  * [#665](https://github.com/cosmos/evm/pull/665) Add EvmCodec address codec implementation
  * [#346](https://github.com/cosmos/evm/pull/346) Add eth\_createAccessList method and implementation
  * [#337](https://github.com/cosmos/evm/pull/337) Support state overrides in eth\_call.
  * [#502](https://github.com/cosmos/evm/pull/502) Add block time in derived logs.
  * [#633](https://github.com/cosmos/evm/pull/633) go-ethereum metrics are now emitted on a separate server. default address: 127.0.0.1:8100.
  * [#650](https://github.com/cosmos/evm/pull/650) Make staking precompile queries return the full validators' description structure.

  ## API-BREAKING

  * [#477](https://github.com/cosmos/evm/pull/477) Refactor precompile constructors to accept keeper interfaces instead of concrete implementations, breaking the existing `NewPrecompile` function signatures.
  * [#594](https://github.com/cosmos/evm/pull/594) Remove all usage of x/params
  * [#577](https://github.com/cosmos/evm/pull/577) Changed the way to create a stateful precompile based on the cmn.Precompile, change `NewPrecompile` to not return error.
  * [#661](https://github.com/cosmos/evm/pull/661) Removes evmAppOptions from the repository and moves initialization to genesis. Chains must now have a display and denom metadata set for the defined EVM denom in the bank module's metadata.
</Update>