Source Intelligence

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 v2.1.224 Home All releases olderv2.1.223 v2.1.225newer

Simpler transcript edit operation

Under the hood
Useful2 Signal2
Compaction

Removing messages from conversation history is now a plain drop-and-append with no boundary trimming.

What

The operation that removed messages from conversation history was replaced with one that simply drops the named messages and appends, without the earlier filtering and trim-to-boundary step.

Evidence

remove-uuids-and-append

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 v2.1.224 →