The short answer
Yes. Rebuilt or re-downloaded automatically when needed.
What is it?
Debug symbols Xcode copies from an Apple TV you debug on, one folder per tvOS version and build. Folders for versions the Apple TV no longer runs are kept until you remove them.
What happens if you delete it?
Xcode copies the symbols again the next time you debug on an Apple TV running that version. Nothing else is lost.
How to remove it properly
Quit Xcode, open ~/Library/Developer/Xcode/tvOS DeviceSupport with Go › Go to Folder… in Finder, and move older version folders to the Trash, keeping the newest one.
Quit the app that uses it, then move it to the Trash. Empty the Trash when you’re sure.
- MoreRoom keeps the newest 1 and suggests the older ones.
How MoreRoom helps
MoreRoom recognises this item, shows its real size and when it was last used, and labels it “Safe to remove”. In the free version you can move it to the Trash in one click, with Undo; Pro collects every safe item at once.
Frequently asked questions
Is it safe to delete tvOS DeviceSupport in Xcode?
Yes. Rebuilt or re-downloaded automatically when needed. Xcode copies the symbols again the next time you debug on an Apple TV running that version. Nothing else is lost.
Will tvOS Device Support (old versions) come back after I delete it?
Yes. Xcode copies the symbols again the next time you debug on an Apple TV running that version. Nothing else is lost.
How do I remove tvOS Device Support (old versions) properly?
Quit Xcode, open ~/Library/Developer/Xcode/tvOS DeviceSupport with Go › Go to Folder… in Finder, and move older version folders to the Trash, keeping the newest one.