Reading a new releasev2.1.251Analysing changes · 2/5Sorting the findings · 1/4 steps470 findings$18.91 so far
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.
When using thinking.type=enabled, Claude now warns that this is deprecated and recommends thinking.type=adaptive for better performance, with a link to documentation.
Evidence
Deprecation warning (search for "thinking.type=enabled' is deprecated")
Strings lifted out of the shipped bundle, so the claim above can be checked against them.
