By alexpott on
Change record status: 
Published (View all published change records)
Project: 
Drupal core
Introduced in branch: 
9.0.x
Introduced in version: 
9.0.0
Issue links: 
https://www.drupal.org/node/3043471
Description: 

Drupal 9 has updated symfony/psr-http-message-bridge to version 2.0.0 so it now uses PSR-17 compliant message factories to create PSR-7 requests and responses.

Impacts: 
Module developers