On Windows 10 Mobile, you now can become a Windows Insider for receiving Windows 10 Mobile preview builds. As an insider you can enjoy features and changes in advance that will come to non-insiders after several months. The Windows Insider registration process is even easier than enrolling for "preview for
Windows 10 for Phones brings some visible and powerful changes to how we used to deal with notifications and toasts on Windows Phone 8.1. Here are three really useful changes, Actionable notifications: Some of you asked us to show "actionable notifications" in action and we are showing that in above screenshot (middle).
Microsoft has talked about the difference between Preview for developers and Windows Insiders aka Technical Preview. Windows 10 Technical Preview for phones gives you a sneak peek at Windows 10 for phones. If you’re interested in getting the latest software updates to Windows Phone 8.1, use Developer Preview for Windows Phone 8.1 instead. There are many missing features on Windows 10