Microsoft today announced REST APIs for mail, calendar and contacts having support for both Office 365 and Outlook.com. Now you can build apps for Outlook, Outlook.com and Office 365 users with one set of APIs targeting Windows, iOS, Android, Node.js, Ruby and more.
In this post, find more about the announcement and further links to proceed with. If you are a developer, you might want to try this.
Microsoft rolled out Windows 10 Mobile Insider Preview build 10512 for Windows Insiders on the fast ring. Check for an update right now on your phone, if you are one of the testers. Microsoft also mentioned about more frequent builds for phones in coming days.