Yes: you can deploy to devices with newer versions of iOS. Xcode 8.2 is required to deploy to iOS 10.2 devices/simulator
Any possible problems?
Yes, if you upgrade to a version of Xcode that Delphi does not support. I would not go any higher than Xcode 8.2.1 as
yet. Since upgrading automatically goes to the latest version (8.3), if you want to install 8.2.1, you would need to go
to the older versions page: