By mikelutz on
Change record status: 
Draft (View all draft change records)
Project: 
Drupal core
Introduced in branch: 
8.7.x
Introduced in version: 
8.7.0
Issue links: 
https://www.drupal.org/node/2937177
Description: 

As of Drupal 8.7, Drupal/migrate/ProcessPluginBase, Drupal/migrate/Plugin/source/SourcePluginBase and Drupal/migrate/Plugin/destination/DestinationBase all implement ConfigurablePluginInterface. Classes that extend off of these should leverage the use of the defaultConfiguration method to store default configurations and reduce the need for isset checks on their configuration.