Apple previously published a “What’s new in Xcode 7” information page at:
…but now that URL reports an error, “Sorry, that page cannot be found.”.
How can a developer learn or relearn the various features added into Xcode?
Apple has now relocated that information into an archive section of their web site.
See the page, What’s New in Xcode - Archive, for links to:
For the current version 8, see: