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I've got a "developer-old" folder besides for my "developer" folder. "developer-old" contains "headers", "SDKs", etc folders.

It'd be nice to delete this folder bc it takes up 10GB. Can I?

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up vote 3 down vote accepted

Yes, you don't have to keep that folder according to


It's the backup of old Xcode installation.

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It is of course very important not to delete if you still need to use Xcode 3.x as well as Xcode 4.x – andynormancx Jul 4 '11 at 20:14
@andynormacx nope, i deleted it and I'm still using Xcode 4.02 just fine... – LuxuryMode Jul 5 '11 at 0:53
Yes, because Xcode 4 is in Developer. My comment was that you need to keep it if you want to keep using Xcode 3 and still use Xcode 4 – andynormancx Jul 5 '11 at 6:04

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