Release Notes - Cosmos Documentation

This page tracks all releases and changes from the cosmos/evm repository. For the latest development updates, see the UNRELEASED section.

Aug 22, 2025

EVMRelease

v0.4.1

Features

Add comprehensive Solidity-based end-to-end tests for precompiles (#253)
Add 4-node localnet infrastructure for testing multi-validator setups (#301)
Add system test framework for integration testing (#304)
Add txpool RPC namespace stubs in preparation for app-side mempool implementation (#344)
Enforce app creator returning application implement AppWithPendingTxStream in build time. (#440)

Enforce single EVM transaction per Cosmos transaction for security (#294)
Update dependencies for security and performance improvements (#299)
Preallocate EVM access_list for better performance (#307)
Fix EmitApprovalEvent to use owner address instead of precompile address (#317)
Fix gas cap calculation and fee rounding errors in ante handler benchmarks (#345)
Add loop break labels for optimization (#347)
Use larger CI runners for resource-intensive tests (#370)
Apply security audit patches (#373)
Apply audit-related commit 388b5c0 (#377)
Post-audit security fixes (batch 1) (#382)
Post-audit security fixes (batch 2) (#388)
Post-audit security fixes (batch 3) (#389)
Post-audit security fixes (batch 5) (#392)
Post-audit security fixes (batch 4) (#398)
Prevent nil pointer by checking error in gov precompile FromResponse. (#442)
(Experimental) EVM-compatible appside mempool (#387)
Add revert error e2e tests for contract and precompile calls (#476)

Fix compilation error in server/start.go (#179)
Use PriorityMempool with signer extractor to prevent missing signers error in tx execution (#245)
Align revert reason format with go-ethereum (return hex-encoded result) (#289)
Use proper address codecs in precompiles for bech32/hex conversion (#291)
Add sanity checks to trace_tx RPC endpoint (#296)
Fix estimate gas to handle missing fields for new transaction types (#316)
Fix error propagation in BlockHash RPCs and address test flakiness (#330)
Fix non-determinism in state transitions (#332)
Fix p256 precompile test flakiness (#350)
Fix precompile initialization for local node development script (#376)
Fix debug_traceTransaction RPC failing with block height mismatch errors (#384)
Align precompiles map with available static check to Prague. (#441)
Cleanup unused cancel function in filter. (#452)
Align multi decode functions instead of string contains check in HexAddressFromBech32String. (#454)
Add pagination flags to token-pairs to improve query flexibility. (#468)