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Sweep 06 Nov 2026 · 01:32Z Build v2.1.319 537 read Stable v2.1.311 Latest v2.1.318 Next v2.1.319 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.275 ·

Sandbox proxy trap now preserves the shell's exit code

Sandbox proxy script now preserves the shell's real exit code instead of masking it on exit

Under the hood Bug Fixes
JSON All of v2.1.275
Under the hoodTier: how much it should matter to you
1Useful: my rating, 1 to 5
0Signal: worth watching, 1 to 5
SandboxArea: what it touches
Bug FixesKind: in v2.1.275,
Bug FixesSection of the release
What

The launcher for the socat-based sandbox proxy has a shutdown trap that runs when the process exits. Previously it just killed background processes and exited plainly; now it first captures the actual exit code ($?), kills the background processes, and then re-exits with that captured code.

Why

This means a sandboxed shell's real exit status is now correctly reported when it finishes, instead of being overwritten by the cleanup logic, so scripts or tools checking the exit code get an accurate result.

See this entry in the whole of v2.1.275 →

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