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+---
+"remix": patch
+"@remix-run/deno": patch
+"@remix-run/react": patch
+---
+
+Fix inferred types for `useLoaderData` and `useActionData` to preserve `null`s.
+
+Previously, `null`s were being replaced by `never`s due to usage of `NonNullable` in `UndefinedOptionals`.
+Properties that aren't unions with `undefined` are now kept as-is, while properties that _do_ include `undefined`
+are still made optional, but _only_ remove `undefined` from the property type whereas `NonNullable` also removed `null`s.