Source Intelligence
Reading a new release v2.1.251 Analysing changes · 2/5 Deeper second pass · 4/5 agents 427 findings $12.75 so far

DisclaimerUnofficial, and not affiliated with Anthropic. Nearly all of this is read straight out of what ships: npm bundles, captured prompts, published docs. Anthropic's own notes go in verbatim, marked as theirs. The rest is my reading, and every entry carries the strings behind it. If one looks wrong, vote it down and say why.

All of v2.1.63 Home All releases olderv2.1.62 v2.1.64newer
Claude Code v2.1.63

Stricter SSH Host Key Checking

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 →