Be careful with the most recent update (iOS 13 PB 3) - just installed it on my iPad Mini 5, and Safari is dead - just a blank white screen for 15 seconds, then the app crashes. Turning the iPad off and on doesn't help. Just a head's up.
Another user in a different thread gave me the solution to the problem of Safari crashing in iPadOS 13. If any of you have this same problem, just tap on "Clear History and website Data" in Safari settings, and Safari should start working again.