Changelog

Track Anchor framework releases and breaking changes

All notable changes to Anchor are documented here. For detailed release notes, see the GitHub releases.

Version 0.32.1 (2025-01-09)

Fixes

• Fixed deprecation warnings on alloc
• Fixed race condition during program deployment

Version 0.32.0 (2025-01-08)

Features

• Added #[error] attribute to declare_program!
• Replaced anchor verify with solana-verify
• Made anchor deploy upload IDL by default
• Added generic program validation to Program type
• Built IDL on stable Rustc
• Added support for Bun package manager
• Added hooks section to Anchor.toml

Breaking Changes

• anchor verify now uses solana-verify
• IDL uploaded by default on deploy
• Removed Solang support
• Removed anchor publish command

Version 0.31.1 (2025-04-19)

Features

• New Docker image: solanafoundation/anchor
• Provider requires publicKey instead of wallet

Notes

• Anchor now published under solanafoundation organization

Version 0.31.0 (2025-03-08)

Features

• Non-8-byte discriminator support
• LazyAccount for deferred deserialization
• #[instruction] attribute for custom discriminators
• Mollusk test template
• Shell completions via anchor completions
• AVM downloads binaries by default

Breaking Changes

• Dynamic discriminator lengths
• Removed fallback function shortcut

Older versions

Version 0.30.x

Version 0.30.1

• Solana 1.18 compatibility
• Token-2022 program interface support

Version 0.30.0

• Account resolution improvements
• IDL-based account resolution
• Enhanced PDA support

Version 0.29.x

Version 0.29.0

• Solana 1.17 support
• Improved error messages
• Better TypeScript types

Migration guides

See Migration Guides for detailed upgrade instructions between major versions.

Full changelog

View the complete changelog on GitHub.