Microsoft is pushing out Windows 10 Mobile 14393 to its insiders and has posted its changelog as well. This is now the latest Redstone windows 10 mobile build. Unfortunately, Wi-Fi issues still remain with this build. Other bugs include freezing when Bluetooth is turned on and wallet users are often prompted for PIN twice when using tap to pay functionality.
That said, the wallet is working properly. Microsoft says that fix on the way.
* We fixed an issue resulting in rapid battery drain when Visual Voicemail syncs voicemail messages on Dual SIM devices like the Lumia 950XL.
* We also fixed an issue causing some battery drain on older devices like the Lumia 535, 640, 735, 830, 930 and Icon.
* We fixed the issue causing Voice Recorder to not show up consistently as an option for Call Recording. A app update was released last Friday that fixes this issue. Make sure you have the app version 10.1607.1931.0.
* We fixed several issues impacting Dual SIM capabilities. Using a device with two SIMs should work as it should.