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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 v2.1.309 ·

Certificates that do not lead to a root in their bundle are now dropped

Claude Code now drops certificates in a CA bundle file that do not chain to a root certificate in that file, and logs how many it dropped

You'll notice Improvements
JSON All of v2.1.309
You'll noticeTier: how much it should matter to you
2Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
CertificatesArea: what it touches
ImprovementsKind: in v2.1.309,
ImprovementsSection of the release
What

A CA certificate bundle is a file of certificates used to decide which secure connections to trust. A root certificate is the top-level certificate the others depend on. When Claude Code reads such a file, it now drops any certificate that does not lead back to a root certificate in the same file. It writes a log line saying how many it dropped and from which file.

Why

If you use a custom certificate bundle, stray certificates in it are now ignored. The log line shows when that happens.

See this entry in the whole of v2.1.309 →

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