Claude Code 2.1.323 released

A feature release adding Code Mode, plugin version constraints, and numerous fixes for session management, permissions, and MCP tools.

What changed in 2.1.323

• Code Mode now available as an experimental opt-in where Claude writes JavaScript to call tools instead of using direct tool calls.
• Plugins can now specify version ranges via engines["claude-code"] in plugin.json; incompatible versions won't install, update or load.
• Plugin validation now includes TypeScript type checking for hooks and tracks nouns that engine hooks add, withhold or replace.
• Fixed sign-in issues where sessions on named profiles or API keys would move to different accounts in background mode; sign-in now persists correctly.
• Fixed various Bash sandbox bypasses where allow rules with wildcards or combined sudo flags could skip permission prompts.

Summarised by AgentGid from Anthropic's official release notes on GitHub, as reported there; read the original before relying on it. Price, status and release dates come from our daily data.