Change record status: 
Project: 
Introduced in branch: 
10.2.x
Introduced in version: 
10.2.0
Description: 

\Drupal\Core\Updater\Module::getSchemaUpdates() is not used in Drupal core and is deprecated.

If you are using this method use \Drupal\Core\Update\UpdateHookRegistry::getAvailableUpdates.

\Drupal::service('update.update_hook_registry')->getAvailableUpdates()

Impacts: 
Module developers