cosmos/cosmjs v0.38.0

0.38.0

on GitHub

Highlights in this release

• Add Support for dynamic gas price (via feemarket or Osmosis)
• Add support for Cosmos EVM key handling and signing
• Add support ts-proto v2 code generation
• Decimal type now supports negative values

Housekeeping

• Use ReadonlyDate from readonly-date-esm
• Remove Tendermint 0.34 client
• Rename package @cosmjs/cosmwasm-stargate to @cosmjs/cosmwasm

Important notes

• Users now require TypeScript 5.7+ since we return Uint8Array generics whenever possible
• This is the last version that supports Node.js 20. Please upgrade to version 22 or 24.

Changelog: https://github.com/cosmos/cosmjs/blob/main/CHANGELOG.md#0380---2025-12-30
All changes: v0.37.0...v0.38.0