graphql 8.x-4.0-alpha3

This is the third alpha release of graphql module for Drupal, code name "Cold Amsterdam Winter"!

This release is mostly a security update where access handling of entities was improved in the entity-related data producers. All users are encouraged to upgrade! We also added new data producers to load entity revisions, loading taxonomy term trees and providing the currently logged-in user.

Full list of changes since 4.0-alpha2: https://github.com/drupal-graphql/graphql/compare/8.x-4.0-alpha2...8.x-4...

Warning: the 4.x branch is under development and unstable. Future alpha releases can break API compatibility, so please do extensive testing when upgrading this module.

The documentation on how to use and implement graphql 4.x for your project is work in progress and can be found here: https://github.com/drupal-graphql/graphql/blob/8.x-4.x/doc/SUMMARY.md