By dawehner on
Change record status: 
Published (View all published change records)
Project: 
Drupal core
Introduced in branch: 
8.0.x
Introduced in version: 
8.0.0-beta16
Issue links: 
https://www.drupal.org/node/2559971
https://www.drupal.org/node/2576533
Description: 

\Drupal\Core\Utility\SafeMarkup::format() and format_string() now return a FormattableMarkup object instead of a string.

Similar to the conversion of t() there are a couple of places where this might cause issues. Please read t() returns a TranslatableMarkup object instead of a string for more information about those kind of problems.

Impacts: 
Module developers