Change record status: 
Project: 
Introduced in branch: 
8.5.x
Introduced in version: 
8.5.0
Description: 

A new FieldTranslationSynchronizerInterface::getFieldSynchronizedProperties() method was added to retrieve field properties having translation synchronization enabled.

$synchronizer = \Drupal::service('content_translation.synchronizer');
$properties = $synchronizer->getFieldSynchronizedProperties($image_field_definition);
// $properties is ['target_id', 'weight', 'height']
Impacts: 
Module developers
Updates Done (doc team, etc.)
Online documentation: 
Not done
Theming guide: 
Not done
Module developer documentation: 
Not done
Examples project: 
Not done
Coder Review: 
Not done
Coder Upgrade: 
Not done
Other: 
Other updates done