Here are the new tiers:
https://developer.apple.com/help/app-store-connect/reference...The document says manual updates are included but not automatic updates (which is just a setting in the App Store that I personally disable).
Whether there will be update notifications is unclear. Is that what you meant by "app notification delivery", or something else?
As an App Store developer myself, I would love to have Tier 1 in the United States, mainly due to no user ratings and reviews. I hate them, and I hate trying to solicit them. As far as I'm concerned, ditching ratings & reviews would be a bonus!