Under the hoodTier: how much it should matter to you
1Useful: my rating, 1 to 5
0Signal: worth watching, 1 to 5
DependenciesArea: what it touches
Internal ChangesKind: in v2.1.300,
Internal ChangesSection of the release
What
Claude Code includes zod, a library that checks data has the expected shape. The included copy was updated. It can now check IBAN (international bank account number) strings, and its messages in many languages include a name for that format. Some of the code that builds its error messages and size checks was also reworked.
Why
This is an internal update with little visible effect.
