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Sweep 22 Oct 2026 · 21:04Z Build v2.1.309 528 read Stable v2.1.308 Latest v2.1.309 Next v2.1.309 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.221 ·

Ephemeral sandbox CA takes options

The sandbox's throwaway certificate authority can now be given a custom name and lifetime.

Under the hood Internal Changes
JSON All of v2.1.221
Under the hoodTier: how much it should matter to you
2Useful: my rating, 1 to 5
0Signal: worth watching, 1 to 5
SandboxArea: what it touches
Internal ChangesKind: in v2.1.221,
Internal ChangesSection of the release
What

The generator for the sandbox's throwaway CA is parameterised instead of hard-coding its identity and lifetime.

Details
  • Accepts an options object with a custom common name and a validityDays value.
  • validityDays still defaults to 825, matching the previous hard-coded value.
  • Used by the sandbox TLS-terminating proxy.
Evidence

sandbox-runtime ephemeral CA

Strings lifted out of the shipped bundle, so the claim above can be checked against them.

See this entry in the whole of v2.1.221 →

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