Latest build of Windows 10 Mobile, 10586.218, now available for Insiders on the Release Preview ring14
The OTA files will be sent to phones getting updated to Windows 10 Mobile. It also is earmarked for retail devices. These are non-carrier Windows 10 handsets sitting inside stores.
According to Microsoft's community website, the changes include:
- Reliability, performance and stability improvements.
- Support for Visual Voicemail on Dual SIM phones.
- Improvements for Bluetooth connectivity, including the reliability of connecting to and staying connected with Bluetooth devices.
- Fix for a problem that caused audio playback to get occasionally interrupted in Groove Music and other music apps when phone display was turned off.
- Improvements for Microsoft Edge browser, including support for configuring a prompt before a file download occurs, support for background downloads, and a fix for a problem where opening a link from an another app wouldn’t load the web page.
- Reliability improvements for Cortana reading text messages aloud and usability improvements for Quiet Hours feature.
- Improvements for Store reliability, including a fix for a problem that prevented some apps from being updated and installed.
- Fix for a problem that occasionally caused some apps to show blank tiles after upgrading from Windows Phone 8.1.
- Improvements for PC connectivity via USB on some phones that were upgraded from Windows Phone 8.1.
source: Microsoft via WindowsCentral