Apple released the first developer beta for iOS 13.3 yesterday. While the update seems to fix the RAM management issues discovered in iOS 13.2, it offers little else. In fact, a new bug in the iOS 13.3 beta disallows the use of Beats Solo Pro headphones; an iPhone running iOS 13.3 Beta 1 will not recognize the headphones at all.
https://www.notebookcheck.net/Apple-seeds-first-developer-beta-of-iOS-13-3.441285.0.html