New features

Development branch for HTTP client error status for Drupal 8 and 9. Use at your own risk.

This version breaks compatibility with versions of Drupal 8.7.6 or less, but adds support for Drupal 9.

Further versions will introduce semantic versioning, so may effect compatibility with some versions of Drupal 8.

Issue #3138152 by slayne40, jurgenhaas: PROXY Drupal parameters are not used
Merge branch '8.x-3.x' into 4.0.x
Issue #3134576 by wrd, jcnventura: Included modules need core_version_requirement key
Issue #3138833 by jurgenhaas: Get ready for Drupal 9

Initial functional version for D8 and D9

Deprecations removed
Allow Multiple Boolean Field Values to be passed in the Site Settings Loader
Move definition of cache BIN/CID constants into class rather than in the .module file

Provides the following

1. Drupal 9 compatibility
2. Configure button in module list page
3. E-Mail id in mail array

Issue #3019548 by jurgenhaas, scott.whittaker, lebster, boromino: SSO breaks if User Picture field is removed from User entity
Issue #3038222 by rogerpfaff, jurgenhaas: Provide a discourse username if account name is email address
Issue #3096487 by jurgenhaas: Update code for Drupal 9 and general cleanup
Remove Drupal 8.8 deprecations for Drupal 9
Issue #3096487 by jurgenhaas: Update code for Drupal 9 and general cleanup