Is Xcode 8 working correctly on High Sierra (10.13.1)?

Question

iOS

Good afternoon. I updated my poppy to the latest OS, but did not take into account one point, namely the Xcode versions of their compatibility with macOS. Initially, I needed this particular poppy to work in xcode with an SDK for iOS 10.3 and swift 3 versions. But somehow I didn’t take into account that high sierra is now in the AppStore only with xcode 9, it is with SDK for iOS 11, and fully works only with swift 4. Therefore, now there are two ways out:
1) Is it possible to work in xcode 8.3 .3 on 10.13.1? The xcode app itself starts up, but will the whole thing work correctly? As I understand it, some components need to be manually pulled up there, at least (until this moment I installed xcode only from the App Store). I haven't worked much in xcode before, so I don't know what the difficulties might be in this case.
2) Roll back to 10.9.5 from a time machine from a fresh backup and from there it will already be updated (without data loss) to 10.12, on which there will definitely be no problems with xcode 8.

Answer 1

No need to roll back anything, everything will work fine. Download the previous Xcode from here: https://developer.apple.com/download/more/, it will pull up the components on startup.