Claude Code 2.1.63

What changed in Claude Code 2.1.63?

In our words, from the release notes — never copied.

• New slash commands, `/simplify` and `/batch`, are now available for improved workflow efficiency.
• System messages in the user interface now display correctly, resolving an issue where they appeared as user-sent messages.
• Project configurations and automatic memory settings are now consistently shared across different Git worktrees within the same repository.
• Several memory leaks across various components, including caches, listeners, and long-running sessions, have been addressed to improve application stability.
• Users can now opt out of Claude.ai MCP servers via an environment variable and manually complete MCP OAuth authentication if automatic redirects fail.
• HTTP hooks have been introduced, allowing the system to send and receive JSON data from URLs instead of executing shell commands.

Is this the latest version?

This page is frozen to Claude Code 2.1.63 and stays at this address. The Claude Code version history always lists the newest tracked version first.