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

The value of Drupal\Core\Config\ConfigInstaller::isSyncing() is now passed as the second argument to both hook_module_preinstall() and hook_module_preuninstall() implementations.

Impacts: 
Module developers
Site templates, recipes and distribution developers