Change record status: 
Project: 
Introduced in branch: 
11.4.x
Introduced in version: 
11.4.0
Description: 

To access Composer's autoloader (class loader), find and require /vendor/autoload.php.

Before, the class loader was available from the $autoload variable. This made it available as global variable, $GLOBALS['autoload'].

Accessing any methods on the autoload global will emit a deprecation error in Drupal 11.4.0 and be unsupported in Drupal 12.0.0.

Impacts: 
Module developers
Themers
Site templates, recipes and distribution developers