Announcing Windows 11 Insider Preview Build 27744 (Canary Channel)
Hello Windows Insiders, today we are releasing Windows 11 Insider Preview Build 27744 to the Canary Channel.
We are also not planning to release SDKs for 27xxx series builds for the time being.
What’s new with Build 27744
New Processor Feature Support in Prism
In today’s Canary Channel Insider Preview build, we’re previewing a major feature update to Prism, our emulator for Windows on Arm, that will make it possible for more 64-bit x86 (x64) applications to run under emulation by adding support for more CPU features under emulation.
This new support in Prism is already in limited use today in the retail version of Windows 11, version 24H2, where it enables the ability to run Adobe Premiere Pro 25 on Arm. Starting with Build 27744, the support is being opened to any x64 application under emulation. You may find some games or creative apps that were blocked due to CPU requirements before will be able to run using Prism on this build of Windows.
At a technical level, the virtual CPU used by x64 emulated applications through Prism will now have support for additional extensions to the x86 instruction set architecture. These extensions include AVX and AVX2, as well as BMI, FMA, F16C, and others, that are not required to run Windows but have become sufficiently commonplace that some apps expect them to be present. You can see some of the new features in the output of a tool like Coreinfo64.exe.
