I would like to know if Facebook's Graph API offers a method for alerting me if a new version of the API is available? Or if there is some sort of email I can subscribe to that will alert me?
This way I can get as soon as possible notifications of API versioning updates.
As far as I know there is not such a thing yet. In my experience I check the changelog once a week in order to stay update with any change.
Moreover, althought Facebook is releasing versions more often, they usually set a long range deadline.