Apple still has plenty left in store for iOS 13 before moving on to iOS 14 (which we will likely hear about this summer at WWDC). A week after the release of iOS and iPadOS 13.3.1, it has begun beta testing iOS 13.4.
Update: We've added a list of the more significant new features discovered so far in iOS 13.4.
What’s new in iOS and iPadOS 13.4
We don't know every little change in the new iOS 13.4 beta—there are no official release notes yet—but here are a few of the things discovered by the Apple community so far.
