Reopen Swift 2.0 migration tool in Xcode 7 I just opened a Swift project on the new Xcode 7. 

I didn't really look on what button I clicked and closed the migration tools without migrating anything. 

Any idea how I could reopen it?
To begin migration to swift 2.0 latest syntax, open your Xcode project with xcode7, Click Edit > Convert. See this link:
https://developer.apple.com/swift/blog/