RS_Prerelease build 21277 which will end up part of Vole’s "Cobalt" branch includes the features Microsoft had previously been testing but removed at the end of October.

This includes the updated emoji picker, redesigned touch keyboard, voice typing, theme-aware splash screens and more. It also provides ARM emulation support.

Windows on ARM currently supports ARM apps, including ARM64 versions but only 32-bit Intel (x86) apps are supported in emulation.

This lack of x64 emulation has limited the number of apps that can run on Windows on ARM devices, since apps that are 64-bit only have only been available on Windows on ARM (WoA) devices if and when developers created native versions of them.

As of now, these x64 Arm apps also can run in emulation.