Now that people have had a chance to explore iOS 11 there are some interesting finds!
iOS 11 includes the ability to record the screen natively! There are reports of some bugs with the recordings, but it is a nice first step. Especially coming from the company that has thus far rejected many apps attempting to offer this ability. Unfortunately, in all of the demo videos I've seen there are no on-screen finger taps. This is fine for video game footage, but in tutorials I think it is vital to show on-screen taps. In a complex synth it can be hard to follow exactly what is being done without them.
If they add this feature though, I may never need to jailbreak again!
Yesterday Apple released an update to the iOS version of GarageBand addressing, "stability improvements and bug fixes." This could be a bad omen. The differences between iOS 10 and iOS 11 seem slight, but Apple doesn't update first-party apps very often. That's a hell of a coincidence if they decided to do this one on the day they release iOS 11 to developers.
I don't think it is too much of a stretch to imagine that something in iOS 11 has necessitated this update. We'll have to wait until developers have had some more time with it to see if other apps will need fixes too.
What's new in GarageBand v2.2.2:This update contains stability improvements and bug fixes.
In the last several years Apple has been trying to phase out 32-bit support. First with requirements for 64-bit support, then nags built-in to iOS 10. If you're running iOS 10 you've probably read the message, "This app may slow down your iPad." This message when running 32-bit apps was replaced in 10.3 with, "This app will not work with future versions of iOS." In iOS 11 they make good on that promise.
You are not even be able to load 32-bit apps onto a device running iOS 11, and this is not merely a limitation of the beta. The iOS 11 Beta release notes explicitly state 32-bit legacy support will not be returning.
Meanwhile owners of 32-bit devices are going to find they've hit the limit of Apple's support. iPad 4, iPad Mini 1, iPhone 5, and all devices before them, are now out. All of the folks that have doggedly stuck with a trusty iPad 4 are going to find iOS 10 is the limit.