Claude Code v2.1.231
Claude Code v2.1.231 was released on .
Summary
Claude Code 2.1.231 fixes a critical OAuth sign-in issue that was blocking connections to services like Slack. Your integrations should now connect smoothly without redirect errors. Check the full release notes to see what else we've improved.
Release Context
- This was the 185th Claude Code release of 2026 tracked by Havoptic.
- It shipped 1 day after Claude Code v2.1.229 (August 12, 2026).
- Claude Code: ships every 2 days — 20 releases in the last month.
Why it matters: MCP OAuth sign-in now works with Slack.
Shipped around the same time
Within 3 days of this release, other AI coding tools also shipped:
- GitHub Copilot CLI v1.0.80 (August 14, 2026)
- Antigravity CLI v1.1.13 (August 14, 2026)
- Devin Desktop v3.7.25 (August 13, 2026)
- Kiro CLI v2.18.0 (August 12, 2026)
- Gemini CLI v0.55.1 (August 11, 2026)
Compare Claude Code: vs OpenAI Codex CLI · vs Cursor · vs Gemini CLI · vs Kiro CLI · vs GitHub Copilot CLI · vs Devin Desktop · vs Antigravity CLI
Release Notes
- Fixed MCP OAuth sign-in failing with a redirect URI mismatch for servers that use a pre-registered OAuth client, such as Slack
Other Recent Claude Code Releases
- v2.1.228 (August 11, 2026)
- v2.1.227 (August 10, 2026)
- v2.1.226 (August 8, 2026)
- v2.1.225 (August 7, 2026)
- v2.1.224 (August 7, 2026)
All Claude Code releases · All AI coding tool releases on Havoptic