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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 v2.1.273 ·

Shell-safety analyzer: new subshell and array-literal detectors

Shell-safety checker gains new detectors for hidden subshells and array-literal syntax

You'll notice Bug Fixes
JSON All of v2.1.273
You'll noticeTier: how much it should matter to you
1Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
Bash SafetyArea: what it touches
Bug FixesKind: in v2.1.273,
Bug FixesSection of the release
What

Claude Code's bash safety checker gained two new internal helpers:

  • One recursively checks whether a command or variable assignment contains a nested subshell (a command run in its own sub-process, e.g. via parentheses).
  • Another walks a parsed command looking for =( array-literal syntax hidden inside words, regular expressions, or expansions, falling back to treating the command as unsafe by default if parsing fails or the input is too long.
Why

These detectors help the safety checker catch commands that use subshells or array-literal syntax to do something other than what they appear to on the surface, before deciding whether a command is safe to auto-run.

See this entry in the whole of v2.1.273 →

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