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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 v2.1.248

DISABLE_AUTOUPDATER now needs a real truthy value

Use it now
Useful4 Signal2
Auto Updater Notable

DISABLE_AUTOUPDATER=0 or false no longer disables updates; only truthy values count now.

DISABLE_AUTOUPDATERDISABLE_UPDATES
What

Auto-update suppression used to fire on any non-empty value. It now goes through the shared truthiness parser, which accepts only 1, true, yes or on (case-insensitive, trimmed), so DISABLE_AUTOUPDATER=0 or =false no longer disables the updater as it did in 2.1.247. DISABLE_UPDATES is unchanged.

Details
  • The new check reads the process environment directly rather than the merged environment accessor, so whether a DISABLE_AUTOUPDATER set inside a settings file env block still takes effect depends on that path, which this code does not settle.
Evidence

DISABLE_AUTOUPDATER

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

See this entry in the whole of v2.1.248 →