What we are doing:
We are planning to deprecate the relation.accessToSubject.type property on relationships API. This property will be removed and we will default any access granted as Write access.
What you need to do:
If you do use this API - please make sure you update your code so it doesn't rely on this property.
When will it happen?
We are planning to introduce this change on February 28th. We will review the timeline depending on feedback from the developer community.