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 v2.0.57 Home All releases olderv2.0.56 v2.0.58newer
Claude Code v2.0.57

Zod Validation Library Upgrade

Internal upgrade to a newer version of the Zod schema validation library, including JSON Schema generation improvements and new validation utilities.

Evidence

New class z50 at line 405825, new functions for JSON schema conversion at line 406332

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 v2.0.57 →