diff -u b/core/modules/update/src/ProjectCoreCompatibility.php b/core/modules/update/src/ProjectCoreCompatibility.php
--- b/core/modules/update/src/ProjectCoreCompatibility.php
+++ b/core/modules/update/src/ProjectCoreCompatibility.php
@@ -7,7 +7,7 @@
 use Drupal\Core\StringTranslation\StringTranslationTrait;
 
 /**
- * Utility class to set core compatibility messages for module updates.
+ * Utility class to set core compatibility messages for project releases.
  */
 class ProjectCoreCompatibility {
 
@@ -178,7 +178,7 @@
           $range_messages[] = $core_compatibility_range[0];
         }
       }
-      $this->compatibilityMessages[$core_compatibility_constraint] = $this->t('This module is compatible with Drupal core:') . ' ' . implode(', ', $range_messages);
+      $this->compatibilityMessages[$core_compatibility_constraint] = $this->t('This release is compatible with Drupal core:') . ' ' . implode(', ', $range_messages);
     }
     return $this->compatibilityMessages[$core_compatibility_constraint];
   }