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.
Nearest release: v2.1.250, published 9 hours before this site recorded the change. Shown because the two are within 24 hours of each other. Nothing here says the release caused the edit.