ReleasesClaude Code version history
Claude Code 2.1.290
Released
Claude Code 2.1.290 was released on October 5, 2026 with 190 documented changes.
What changed in Claude Code 2.1.290?
In our words, from the release notes — never copied.
- Tool execution details, including IDs, names, and inputs, are now visible to mod developers.
- A new deny button on the sign-in approval page allows users to quickly stop pending sign-in requests.
- Users can now reference background sessions by partial name for easier attachment and log viewing.
- The platform now prevents infinite loops caused by deeply nested list structures in model responses.
- Web fetching of long pages has been improved, providing feedback on unread content and allowing offset-based reading.
- Numerous fixes address issues with sandboxing, permission checks, and agent behavior across various scenarios.
Is this the latest version?
This page is frozen to Claude Code 2.1.290 and stays at this address. The Claude Code version history always lists the newest tracked version first.
Summarized by Claude Network from GitHub. Last verified .