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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 v2.1.228

Environment variables read through one shared accessor

Under the hood
Useful1 Signal1
Environment Variables

Environment reads go through one shared accessor; same variables, same behaviour.

What

Many direct process environment reads now go through the shared environment object instead. Same variables, same behaviour, read through a single coercing accessor.

Details
  • Covers alt-screen full repaint, bench live counts, TMUX/STY/WT_SESSION detection, ConEmu and TERM_PROGRAM progress reporting, VISUAL/EDITOR, and the custom API key settings row.
Evidence

CLAUDE_CODE_ALT_SCREEN_FULL_REPAINT

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

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 v2.1.228 →