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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 v2.1.63 ·

Stricter SSH Host Key Checking

Entry
JSON All of v2.1.63
EntryKind: in v2.1.63,
ChangesSection of the release

Git clone operations for marketplace plugins now use StrictHostKeyChecking=yes instead of the previous StrictHostKeyChecking=accept-new. This means new host keys are no longer automatically trusted — the user must explicitly add them first. Improved error messages now provide specific remediation steps:

  • For changed host keys: shows ssh-keygen -R <host> command
  • For unknown hosts: shows ssh -T git@<host> command
  • Detects REMOTE HOST IDENTIFICATION HAS CHANGED and Host key verification failed scenarios
Evidence

SSH config change (search for "StrictHostKeyChecking=yes", "SSH host key has changed")

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

See this entry in the whole of v2.1.63 →

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