By quietone on
Change record status: 
Published (View all published change records)
Project: 
Drupal core
Introduced in branch: 
9.4.x
Introduced in version: 
9.4.0
Issue links: 
https://www.drupal.org/node/3279640
Description: 

When the 'maintenance_theme' is disabled in settings.php, i.e $settings['maintenance_theme'] = FALSE; the process for selecting the theme to use when maintenance mode is enabled has changed. This applies when visiting /update.php.

Before
If the 'Seven' theme is installed it is used, otherwise the default theme is used.

After
If the 'Claro' theme is installed it is used, otherwise if the 'Seven' theme is installed it is used, otherwise the default theme is used.

Impacts: 
Site builders, administrators, editors
Module developers
Themers
Updates Done (doc team, etc.)
Online documentation: 
Not done
Theming guide: 
Not done
Module developer documentation: 
Not done
Examples project: 
Not done
Coder Review: 
Not done
Coder Upgrade: 
Not done
Other: 
Other updates done