- Added `validation_rules` option to query executors as well as ASGI and WSGI apps and Django view that allow developers to include custom query validation logic in their APIs.
- Added `introspection` option to ASGI and WSGI apps, allowing developers to disable GraphQL introspection on their server.
- Added `validation.cost_validator` query validator that allows developers to limit maximum allowed query cost/complexity.
- Removed default literal parser from `ScalarType` because GraphQL already provides one.
- Added `extensions` and `introspection` configuration options to Django view.
- Updated requirements list to require `graphql-core` 3.