Change record status: 
Project: 
Introduced in branch: 
10.3.x
Introduced in version: 
10.3.0
Description: 

\Drupal\Core\Session\PermissionChecker used to take EntityTypeManagerInterface as a dependency, it now relies on AccessPolicyProcessorInterface. Providing it with an entity type manager will lead to it getting the access policy processor from the container instead.

Impacts: 
Module developers