Yes, we’re talking about the same thing. The features list view in Agenda (in its Settings) will update regardless if you are a continuing subscriber or not. That way, a past subscriber who continues to use the app (with all the features still enabled from its last update during the last subscription period) can see the growing list of features available since the subscription expired and thus decide whether or not to renew. Nothing otherwise in the app changes (no interface changes, no buttons with little locks on them, no pestering messages to re-subscribe). It’s like viewing the latest changelog from the web site.
But for current subscribers, there appears the little notice that a new feature was added with the last auto-update. When this happens, it’s a pleasant little surprise, and I rush to check it out.