Patch release GraphQL-core v3.1.3, based on GraphQL.js v15.2.0.
This release includes the following improvements:
* Python 3.9 is now officially suported by GraphQL-core.
* `build_schema`: allow to reference introspection types
* Custom validation rules for "no schema introspection" and "no deprecated"
* Added `execute_sync()` as synchronous version of `execute()`
* Support deep copy of GraphQL schema (100)
* `build_ast_schema` now sets internal enum values (111)
* Do not double-wrap resolver errors any more (106)
* Use newer Sphinx version, fix for various autodoc issues (104)
* Fix example in docstring of GraphQLUnionType (105)
* Let default resolver check for Mapping instead of dict (102)
Thanks to everyone who helped with their feedback, particularly
berekuk, charmasaur, Checho3388, jstlaurent and pmantica1.