Claude Code v2.1.290
Claude Code v2.1.290 was released on .
Summary
Claude Code 2.1.290 now gives you deeper visibility into your tools with serverToolUses tracking what the API itself calls, plus smarter permission controls that distinguish between main sessions and subagents. See what else changed under the hood.
Release Context
- This was the 234th Claude Code release of 2026 tracked by Havoptic.
- It shipped 2 days after Claude Code v2.1.289 (October 3, 2026).
- Claude Code: ships every 1.2 days — 25 releases in the last month.
Shipped around the same time
Within 3 days of this release, other AI coding tools also shipped:
- OpenAI Codex CLI rust-v0.161.0 (October 7, 2026)
- GitHub Copilot CLI v1.0.93 (October 7, 2026)
- Antigravity CLI v1.3.1 (October 7, 2026)
- Gemini CLI v0.63.0 (October 6, 2026)
- Antigravity CLI v1.3.0 (October 6, 2026)
Compare Claude Code
Release Notes
- Added serverToolUses to the result of a mod's turn.step hook: the tool calls the API ran itself (the advisor), each with its id, name, input, start and end
- Added agentId to the tool.check event of plugin hooks, so a hook can tell a subagent's permission check from the main session's
- Added ceiling to the question and verdict a mod's tool.check hook reads, naming the approval an organi
Other Recent Claude Code Releases
- v2.1.294 (October 8, 2026)
- v2.1.293 (October 7, 2026)
- v2.1.292 (October 6, 2026)
- v2.1.288 (October 2, 2026)
- v2.1.287 (October 1, 2026)
All Claude Code releases · All AI coding tool releases on Havoptic