By kim.pepper on
Change record status: 
Draft (View all draft change records)
Project: 
Drupal core
Introduced in branch: 
9.3.x
Introduced in version: 
9.3.0
Issue links: 
https://www.drupal.org/node/3063704
Description: 

\Drupal\Component\FileSystem\FileSystem::getOsTemporaryDirectory() is deprecated in Drupal 9.3.0.

Use the built in PHP function sys_get_temp_dir() instead.