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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.

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Claude Code v2.0.55

Enhanced Terminal Version Detection

What: Improved compatibility checking for Ghostty and iTerm terminals using semantic versioning.

Before: Simple environment variable check (TERM === "xterm-ghostty")

After:

  • Uses proper semver comparison via TERM_PROGRAM and TERM_PROGRAM_VERSION
  • Ghostty: requires version >= 1.2.0
  • iTerm.app: requires version >= 3.6.6

Details:

  • Evidence: New function e46() at line ~222505 with semver checking via mUA.gte()

Related

Other releases about the same thing. Found by shared names or similar wording; neither means one caused the other.

See this entry in the whole of v2.0.55 →