By kim.pepper on
Change record status: 
Published (View all published change records)
Project: 
Drupal core
Introduced in branch: 
10.2.x
Introduced in version: 
10.2.0
Issue links: 
https://www.drupal.org/node/3358336
Description: 

_drupal_flush_css_js() is deprecated and replaced by the 'asset.query_string' service which provides \Drupal\Core\Asset\AssetQueryStringInterface::reset()

Before
_drupal_flush_css_js();

After

<?php
\Drupal::service('asset.query_string')->reset();
?>

Or use dependency injection and call \Drupal\Core\Asset\AssetQueryStringInterface::reset()

Impacts: 
Module developers