Strawberry GraphQL @ 0.288.3

Released January 10, 2026 at 12:04 PM GMT+00:00

Fixed a bug where strawberry.Maybe[T] was incorrectly accepting null values when passed through variables

Previously, Maybe[T] returned a validation error for literal null values in GraphQL queries, but allowed null when passed via variables, resulting in Some(None) reaching the resolver instead of raising a validation error.

This fix ensures consistent validation behavior for Maybe[T] regardless of how the input is provided:

• Maybe[T] now returns a validation error for null in both literal queries and variables
• Maybe[T | None] continues to accept null values as expected
• Error message indicates to use Maybe[T | None] if null values are needed

Releases contributed by @bellini666 via #4096