Claude Code v2.1.91
Claude Code v2.1.91 was released on .
Summary
- Added MCP tool result persistence override via meta["anthropic/maxResultSi
Release Context
- This was the 74th Claude Code release of 2026 tracked by Havoptic.
- It shipped 1 day after Claude Code v2.1.90 (April 1, 2026).
Shipped around the same time
Within 3 days of this release, other AI coding tools also shipped:
- GitHub Copilot CLI v1.0.18 (April 4, 2026)
- GitHub Copilot CLI v1.0.17 (April 3, 2026)
- GitHub Copilot CLI v1.0.16 (April 2, 2026)
- Cursor v3.0 (April 2, 2026)
- Gemini CLI v0.36.0 (April 1, 2026)
Compare Claude Code
Release Notes
- Added MCP tool result persistence override via meta["anthropic/maxResultSi
Other Recent Claude Code Releases
- v2.1.296 (October 9, 2026)
- v2.1.295 (October 8, 2026)
- v2.1.294 (October 8, 2026)
- v2.1.293 (October 7, 2026)
- v2.1.292 (October 6, 2026)
Upgrading from v2.1.91? See all 166 releases since.
All Claude Code releases · All AI coding tool releases on Havoptic