Microsoft is preparing for a full Windows Phone 9.0 release this month and a second Windows Phone 10 release in early 2019.

The schedule will be released in a new document, according to a Microsoft spokesperson.

Microsoft’s Windows 10 Mobile operating system is a major upgrade from the previous version, Windows 10, which was released in September 2017.

In the Windows 10 release roadmap, Microsoft outlined a number of major changes coming in the Windows Phone family, including:New features in Windows 10 include the Cortana personal assistant, Microsoft’s own personal assistant for Android and iOS, and new Skype features.

The Skype for Business mobile app will be discontinued.

Microsoft will also bring Cortana to the desktop in Windows Phone, with a new Windows Store version and new versions of the Windows Store apps for Android, iOS, Windows Phone and Windows desktop.

Microsoft is also introducing a new feature in Windows 9.3 called Cortana for Business, which will allow businesses to create custom email and voice messages with Microsoft’s personal assistant.

Microsoft says that the new Skype for business app for Windows Phone will be available in early 2018, and that Microsoft is working with third-party partners to bring the Skype for Work app to the Windows desktop soon after.

The Skype for Office app for Android will be in early access in late 2018, with the Office 365 suite in late 2019.

Microsoft is also working on an upcoming Skype for Apple mobile app.