When making changes to files with the web-based editor, you can now choose which verified email with which to author the commit (previously you could only use your primary email). If you have email privacy enabled, the commit will be authored with your private “noreply” email.
Microsoft Visual Studio App Center and Outlook integration
GitHub now integrates with the Visual Studio App Center. Automate builds on every commit, test apps on real devices in the cloud, and monitor usage with crash and analytics data. Because the App Center integration uses the Checks API, mobile developers will be able to see the results directly within GitHub’s interface.
GitHub is also integrating with Microsoft Outlook using Adaptive Cards. Over the next several weeks, Outlook users will be able to comment on issues from their inbox—and soon after, be able to merge pull requests, too.