Change record status: 
Project: 
Introduced in branch: 
8.1.x
Introduced in version: 
8.1.4
Description: 

Namespace change

\Drupal\migrate_drupal\MigrationCreationTrait\MigrationCreationTrait

to

\Drupal\migrate_drupal\MigrationCreationTrait\MigrationConfigurationTrait

Impacts: 
Module developers