The subscriber sync’s unsubscribe step could globally unsubscribe an email address subscribed on multiple websites; it now respects the website scope.

Order sync will now not break if product custom options have no option_id key.

Abandoned cart automation enrolments now function correctly if a time limit is configured, and the same contact drops a cart on multiple websites.

Migrating subscribers at install (or dotdigital:migrate) could create duplicate contacts instead of updating an existing row; this has been fixed.