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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.

← All of v2.1.251 Home All releases ←olderv2.1.250
Claude Code v2.1.251

Italics render as reverse video inside screen and tmux

You'll notice
Useful3 Signal1
Terminal UI

Under screen or tmux, italic text now renders as reverse video so it stays visible.

What

Text that would be italic is now drawn as standout, meaning reverse video, when Claude Code detects it is running under GNU screen or tmux, both of which set a terminal type starting with "screen" and often cannot render true italics.

Details
  • The check is on the TERM environment variable; other terminals keep real italics.
Evidence

rendersItalicAsStandout

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

See this entry in the whole of v2.1.251 →