Related
Other releases about the same thing. Found by shared names or similar wording; neither means one caused the other.
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.
Version 2.1.11 is a maintenance release with no user-facing changes. The release consists entirely of internal code refactoring and a version bump from 2.1.10.
What's wrong with this entry?
This release contains only internal changes that do not affect user-facing functionality:
2026-01-17T00:11:03Z to 2026-01-17T01:19:11Z (approximately 1 hour later)R42) was refactored/inlinedFT8 → KT8)Diff header shows 99.9% structural similarity with only 17 additions, 18 deletions, and 55 modifications across ~13,000 declarations.
Strings lifted out of the shipped bundle, so the claim above can be checked against them.
Other releases about the same thing. Found by shared names or similar wording; neither means one caused the other.
What's wrong with this entry?
This appears to be a quick follow-up release to v2.1.10 released approximately one hour earlier, likely containing minor internal fixes or build adjustments not visible in the minified output.
Published verbatim by Anthropic for v2.1.11. Text is unmodified from the upstream changelog. Everything else on this page came out of the bundle instead, which is why the two lists don't match.
No change to the system prompt since v2.1.10.
Agent SDK, print mode