Are you saying those long-press features weren't there before? (If not, I wonder why they didn't have them since they could have since a long time ago.) And I guess this wouldn't apply to any 3D Touch features related to the actual app shortcuts when pressing on the app icon/tile.
No, they weren't there before, they were just added today.
Long pressing has been around for ages. But it just amused me that they thought to use it as a way to give us the new features. So I'm wondering if other developers thought to do the same thing/or will.
No, we don't get the new app icon functions. I'm sure someone's going to try getting that feature to work under the new jailbreak though. It will be done with the same long pressing (you can already set an icon to do something when you long press certain icons, it's probably Activator or something else that does this, I haven't used a jailbreak since since iOS 7).
