By catch on
Change record status: 
Published (View all published change records)
Project: 
Drupal core
Introduced in branch: 
8.1.x
Issue links: 
https://www.drupal.org/node/2642674
Description: 

The protected method \Drupal\Core\Field\WidgetBase::getFilteredDescription() was added to support replacing tokens in field descriptions.

Before:

  $description = FieldFilteredMarkup::create(\Drupal::token()->replace($this->fieldDefinition->getDescription()));

After:

  $description = $this->getFilteredDescription();
Impacts: 
Module developers