Microsoft is releasing two new Windows 10 test build to Dev Channel Insiders. The new ‚Pre-Release‘ build has x64 Arm emulation support, plus a bunch of other new and updated features.
Microsoft made available two different Windows 10 test builds today, December 10. There’s a Dev Channel build 21277 from the pre-release branch which includes the promised x64 app emulation for Arm, among other features. And there’s a Windows 10 test build, No.20277, that’s available to the Dev Channel testers from the Iron (Fe) branch available today, as well. The RS_Prerelease build 21277 — which ultimately is expected to be designated as the „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.
