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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 v2.1.236 ·

IPv6 hosts through the proxy

IPv6 destinations now work correctly through the proxy instead of getting a malformed host.

You'll notice Bug Fixes
JSON All of v2.1.236
You'll noticeTier: how much it should matter to you
3Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
SandboxArea: what it touches
Bug FixesKind: in v2.1.236,
Bug FixesSection of the release
What

The proxy now rewrites the forwarded Host header from the resolved address, wrapping IPv6 literals in brackets and appending the port, so IPv6 destinations are formed correctly. One connection-error branch destroys the socket instead of always trying to write a 500 response.

Evidence

Error handling CONNECT:

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

See this entry in the whole of v2.1.236 →

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