By catch on
Change record status: 
Published (View all published change records)
Project: 
Drupal core
Introduced in branch: 
10.0.x
Introduced in version: 
10.0.0
Issue links: 
https://www.drupal.org/node/3252757
https://www.drupal.org/node/3264918
Description: 

Drupal's Symfony dependency has been updated to Symfony 6.

Code with direct dependencies on Symfony components, or indirect dependencies via non-core libraries, may need to adjust composer.json and their code base for compatibility with the new Symfony version.

Impacts: 
Module developers
Site templates, recipes and distribution developers