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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 v2.1.227

Less eager module loading at startup

You'll notice
Useful3 Signal1
Performance

Startup is faster because fewer modules load before the first screen appears.

What

Startup touches fewer modules before the first render. Long runs of eager sub-module initialization were removed from several bundles, and one skill now loads its markdown through a deferred import rather than a pre-bound loader.

Evidence

startBackgroundHousekeeping

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 v2.1.227 →