- Updated `graphql-core-next` to 1.1.1 which has feature parity with GraphQL.js 14.4.0.
- Added basic extensions system to the `ariadne.graphql.graphql`. Currently only available in the `ariadne.asgi.GraphQL` app.
- Added `convert_kwargs_to_snake_case` utility decorator that recursively converts the case of arguments passed to resolver from `camelCase` to `snake_case`.
- Removed `default_resolver` and replaced its uses in library with `graphql.default_field_resolver`.
- Resolver returned by `resolve_to` util follows `graphql.default_field_resolver` behaviour and supports resolving to callables.
- Added `is_default_resolver` utility for checking if resolver function is `graphql.default_field_resolver`, resolver created with `resolve_to` or `alias`.
- Added `ariadne.contrib.tracing` package with `ApolloTracingExtension` and `OpenTracingExtension` GraphQL extensions for adding Apollo tracing and OpenTracing monitoring to the API (ASGI only).
- Updated ASGI app disconnection handler to also check client connection state.
- Fixed ASGI app `context_value` option support for async callables.
- Updated `middleware` option implementation in ASGI and WSGI apps to accept list of middleware functions or callable returning those.
- Moved error formatting utils (`get_formatted_error_context`, `get_formatted_error_traceback`, `unwrap_graphql_error`) to public API.