Apple’s iOS is what is found on every iPhone. As of 2019, the latest version was iOS 13. A new version is released in Q4, while it’s announce in late Q2 at WWDC with a developer and open beta following in Q3.
iPhone 12 Pro’s Ceramic Shield doesn’t help against scratches
Check out the results of the iPhone 12 Pro’s latest durability test, where they show that Apple’s new Ceramic Shield also scratches easy