v0.10.0

New

• isValidValue() and isValidLiteral() added to Scalar and enum types (#861).
• You can now set a custom default field resolver (#865).
• graphql() may now take a Source object, in addition to the existing support for string (#866).
• graphql() may now take an object with named parameters (#867).
• Partial support for GraphQL subscriptions (#846, #868) (Not yet ready for production use).

Breaking

• Spec compliance: forbid duplicate type definitions (#744).
• Spec compliance: disallow inappropriate coercion of non-Int values to Int (#837).

Fixes

• Ensure GraphQLError stack trace includes error message (#718).
• Fix input coercion to allow null-valued Enums as arguments (#848).
• Fix for fields that are JavaScript keywords (#864).
• Compatibility with Flow v0.47.0 (#878).