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Sweep 22 Oct 2026 · 04:32Z Build v2.1.308 527 read Stable v2.1.308 Latest v2.1.308 Next v2.1.308 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.229 ·

Sandbox doctor warns about unbracketed IPv6 hosts

Sandbox diagnostics warn when an IPv6 host in a rule is missing square brackets.

You'll notice New Features
JSON All of v2.1.229
You'll noticeTier: how much it should matter to you
2Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
SandboxArea: what it touches
New FeaturesKind: in v2.1.229,
New FeaturesSection of the release
What

Sandbox diagnostics now flag permission rules that name an IPv6 address without square brackets, both for domain rules and for injected hosts, so a rule that silently fails to match gets called out.

Details
  • Two new checks, one for domains and one for inject hosts; the existing Linux glob-pattern warning summary now shares a common formatter.
Evidence

getUnbracketedIpv6DomainWarnings

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

See this entry in the whole of v2.1.229 →

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