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The Claude Code Changelog · Sunday · 4 min

Claude Code’s Windows Hooks Could Fail Open—Test Yours

Claude Code 2.1.309 and 2.1.310 tighten sandbox and permission boundaries, including fixes for Windows hooks that could fail open. Learn how to check your version, test a blocking hook and an Edit deny rule, and diagnose Ubuntu sandbox startup issues with /sandbox.

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Claude Code 2.1.309 and 2.1.310 tighten sandbox and permission boundaries, including fixes for Windows hooks that could fail open. Learn how to check your version, test a blocking hook and an Edit deny rule, and diagnose Ubuntu sandbox startup issues with /sandbox.

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