Change record status: 
Project: 
Introduced in branch: 
8.0.x
Introduced in version: 
8.0.0-beta3
Description: 

Modules wanting to react to changes of language configuration overrides can now register event subscribers that subscribe to the \Drupal\language\Config\ConfigEvents::SAVE_OVERRIDE and \Drupal\language\Config\ConfigEvents::DELETE_OVERRIDE events.

Impacts: 
Module developers