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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 v2.1.250 Home All releases ←olderv2.1.248
Claude Code v2.1.250

Build stamp repeated across the bundle

Under the hood
Useful1 Signal0
Elsewhere

The build stamp is copied throughout the bundle and all copies updated together.

What

The same build-constants object is inlined at roughly 66 places, and all of them updated together. The two builds are stamped under two hours apart on the same day.

Evidence

BUILD_TIME: "2026-08-27T21:19:23Z"

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 v2.1.250 →