So I'm trying to update from Xcode 7.0.1 to Xcode 7.1 from the App Store. Xcode 7.1 is one of the my available updates. I use the latest EL Capitan 10.11.1. I click the UPDATE button for Xcode 7.1 it says "waiting" and PAUSE then a second later it goes back to UPDATE and nothing installs nothing updates, it's not telling me that I have something else open, which I don't. Is something wrong with App store now? Is there an alternative way to update my Mac apps?
I assume ou are using Xcode, and thus have it installed: Look in the Appstore Purchased tab. If Xcode is in there: move Xcode from the Utilities folder to the Trash, do not empty the trash. Then on the Appstore Purchased tab click install Xcode, this will install the latest Xcode. When all ok empty the trash.