By mfb on
Change record status: 
Published (View all published change records)
Project: 
Drupal core
Introduced in branch: 
10.3.x
Introduced in version: 
10.3.0
Issue links: 
https://www.drupal.org/node/1561214
Description: 

The locale is now set to C.UTF-8, if available in the environment.

These are set in \Drupal\Core\DrupalKernel::bootEnvironment() and core/tests/bootstrap.php.
If the C.UTF-8 locale is not available, the C locale will continue to be used as a fallback.

With a UTF-8 locale enabled, certain PHP functions, such as escapeshellarg() and escapeshellcmd(), now include non-ASCII characters in the output. Previously, these functions silently discarded non-ASCII characters.

Impacts: 
Module developers