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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 v2.1.242 ·

Sandboxed sessions are told network traffic goes through a filtering proxy

In a proxied sandbox Claude is told to try requests and read errors rather than guess reachability.

You'll notice Improvements
JSON All of v2.1.242
You'll noticeTier: how much it should matter to you
2Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
SandboxArea: what it touches
ImprovementsKind: in v2.1.242,
ImprovementsSection of the release
What

When a sandbox is configured with an egress proxy, the model is now told to just attempt a request and read the error rather than guess what is reachable, and pointed at the sandbox violations block for details.

Details
  • Only added when the proxy configuration is present and non-empty; sandboxes without one see the previous preamble.
Evidence

Network egress goes through a filtering proxy.

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

See this entry in the whole of v2.1.242 →

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