Graphql-core

Changelog
* Improved pre-commit integration (added `black` formatter) https://github.com/graphql-python/graphql-core/commit/04560ea333ab408502d3f89574cebb0c2add1ac8
* Added `flags` config to help know when certain features are available 9059ecd0a87e0bfaf4eff53217217879672adff3
* Added official support to Python 3.7 a7ce75e339a6aaf3a0bb52175c41776edd549bdc
* Improved `GraphQLEnumType` serialization allowing python `Enum` values https://github.com/graphql-python/graphql-core/commit/0cef6fb10c41d36d9042dae968d6a1c7f2b96b51 https://github.com/graphql-python/graphql-core/commit/24687b659e3dd2713e6cd397d2179b8b4ed51163
* Improved `ExecutionResult` typing https://github.com/graphql-python/graphql-core/commit/934deca6734b40519cff13b02054848cd808601e
* Set explicit order for middleware resolvers https://github.com/graphql-python/graphql-core/commit/c27daa5d69ab54d07ac629313a1a5ef7a5d0d7b1

Release's candidates Changelog
The following list includes the changes listed in each of the release candidates for `2.1`.

Changelog
* Improved async generators 4d2f7e72bbb1f842fee4fd3178a4c1ed4e23eac6 (thanks ciscorn!)
* Added static typing with mypy fa4eeda36029680205e20059379e89189b946032 🎉
* Fixed errors in middleware when resolvers were not returning promises but Exceptions 6a3f9004362b51336e082e08b3b4a180c6a325c2

Changelog
* Fixed `quiver_cloud` backend imports 79811e108da626bff749b27dae4a35ffd1f4b2a0
* Added `to_dict` method to `ExecutionResult` ff6b490d565124f08d7b7b8d42a421ad0c185b96
* Improved middleware init speed 24be647e0cf12b0a12d858c4791f34a9bd210be3

Changelog
* Improved backend tests 37bcf6a1016f54f2662e839a49130e570c6ab47f
* Improved `format_error` function using six compatibility library 52de303855de695099362ff013f26ff2ce9045d0
* Added `get_operation_type` to GraphQLDocument 27e21e4d5023e0bfd1619537564cceed37dd8964

Changelog
* Add path tracking in `ResolveInfo` 148
* Add path to GraphQL raised errors 186
* Fixed `GraphQLInt` description ea0dd0c2c653000761966faeb7c1c0a156e269d1
* Improved Enum support 163
* Make `GraphQLEnumValue` importable from main module 9ec3d7cce6b41228699f6f58b9f014b9dc0d589d
* Fixed memory leak in executors f2c4f6d2103e7e929c9d9d0fc08e423f3d75fe7f
* Added official support to Python 3.6
* Added pre-commit 178
* Added `is_deprecated` property to `GraphQLField` 175
* Added support for pluggable backends 185

Docs
* Improved contributing docs 173

Changelog

* Moving context from the resolver arguments to `info.context` 133
* New resolvers API. Moving from `resolver(root, args, context, info)` to `resolver(root, info, **args)` 133
* Is Type of new syntax from `is_type_of(result, context, info)` to `is_type_of(result, info)` 133
* Resolve type new syntax `resolve_type(result, context, info)` to `resolve_type(result, info)` 133
* Subscriptions support 143
* Improved exceptions on promises