Apple has introduced a new project-related type of file in Xcode 5: "xccheckout". This file is located in the ".xcodeproj/project.xcworkspace/xcshareddata/" directory, and it seems that it is related to the project's version control system. An example file is here: http://pastebin.com/5EP63iRa I suppose that this type of file should be ignored under VCS, but I'm not sure. So here are the questions