The Xcode xcshareddata directory?

My project now has a project.xcworkspace/xcshareddata directory.

What does Xcode store in the project.xcworkspace/xcshareddata directory?

The xcshareddata directory is primarily used to store shared settings (as opposed to xcuserdata which is used for settings which are not shared a.k.a. user specific). The following are some items currently stored in 'xcshareddata`:

• Schemes: schemes can be shared in Xcode with the "Scheme manager" which can be accessed via the "Product" > "Scheme" > "Manage Schemes" menu items. Schemes have a "share" option.
• Breakpoints:
  1.) In the breakpoint navigator, Control-click the breakpoint.
  2.) From the shortcut menu, choose Share Breakpoint.
• xccheckout: A file that contains metadata about what repositories are used in a workspace. In the case of workspaces that have multiple projects from different repositories Xcode uses an .xccheckout file to know what all of the components that make up a workspace are and where to get them.