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Home/Coding Tools
Coding Tools

Claude Code v2.1.305 fixes critical sandbox and retry regressions

Claude Code Releases·October 22, 2026·high confidence

Why it matters

  • →Fixes a regression causing total API failure on Vertex/Bedrock when tool search is rejected.
  • →Enables nested user namespaces in Linux sandboxes for tools like rootless Podman.
  • →Resolves subagent worktree cleanup and cloud session scheduling edge cases.

Anthropic has released Claude Code v2.1.305, addressing critical stability issues introduced in the previous version. The update fixes a regression where tool search rejections on cloud providers like Vertex AI caused total request failures, implementing an automatic retry mechanism without that feature. It also enables nested user namespaces in Linux sandboxes, allowing containerized tools such as rootless Podman to operate securely. Additional patches resolve subagent worktree cleanup errors and improve error messaging for disk space issues and MCP server conflicts.

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The story around this

Earlier coverage that leads up to this article, and what followed. Lines connect each piece to the closest one after it, converging here.

Claude Code v2.1.292 patches security and agent logic — Claude Code Releases1Claude Code v2.1.305 fixes critical sandbox and retry regressionsClaude Code v2.1.310 release notes — Claude Code Releases2Oct 10You are hereOct 24

How we got here

  1. 1
    Claude Code v2.1.292 patches security and agent logic

    Claude Code Releases · October 10, 2026 · Same story

What happened next

  1. 2
    Claude Code v2.1.310 release notes

    Claude Code Releases · October 24, 2026 · Same story

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