Microsoft has released a list of what's new in the just launched Windows 10 Mobile preview build 14356 for Insiders in the Fast Ring.
Here's what's new, according to Windows Insider head Dona Sarkar:
Get notifications from your phone to your PC: Cortana will now surface your phone notifications and critical alerts, including messages from messaging services, SMS or social media as well as missed calls from any Windows 10 phone or Android device to your PC, so you never miss a beat while staying focused on your PC.
NOTE: Android requires Cortana version 1.7.1 or higher. (download here for U.S. and download here for China) Some actions on Cortana forward notifications may not be fully functional yet, including reply from PC (for Windows 10 Mobile). Muting the forwarded Windows 10 Mobile notifications per app will come soon. In the meantime, if you want to stop receiving phone notifications, go to Cortana settings and toggle off "Send notifications between devices".
Send a photo from your phone to PC: If you need to quickly transfer a photo from your phone to your PC wirelessly – just ask Cortana "send this photo to my PC" and see what happens. This feature is currently exclusive to Windows 10 phones.。
New listening animation: When you tap the mic icon in Cortana, there is a new animation that shows Cortana is listening to you as you speak.