Windows 10 Mobile 14393.67 cumulative update is now available for all users including fast, flow, release preview as well as non-insiders. It addresses issue that may cause Windows 10 Mobile devices to hang after turning Bluetooth on and off very quickly.
Two additional bug fixes were done in this update:
* Addressed issue that causes significantly reduced battery life on Windows Phone when using Bluetooth with “Hey Cortana” feature enabled.
* Addressed issue that prevents users from completing the out-of-box experience (OOBE) with a local account using Korean characters.
Also 14393.67 is not RS2. It’s to keep RS1 up to date for all of the rings. It’ll come through Windows Update in coming months.
Make sure you on fast ring insider built to get new features and bug fixes before other users.