Microsoft Reveals Plans to Build a Complete Linux Kernel on Windows

Windows 10 and Windows Server have Windows Subsystem for Linux (WSL) , a compatibility layer for executing files for Linux . Microsoft announced on its official blog that it intends to incorporate the complete Linux kernel built for Windows 10 into WSL2 , the next version of WSL, so that this WSL can always support the latest version of Linux .

Shipping a Linux Kernel with Windows | Command Line Tools For Developers
https://devblogs.microsoft.com/commandline/shipping-a-linux-kernel-with-windows/

Microsoft is going to ship a full Linux kernel in Windows 10-The Verge
https://www.theverge.com/2019/5/6/18534687/microsoft-windows-10-linux-kernel-feature

In the past, in order for users to work with WSL, a Linux compatible feature, it was necessary to introduce a Linux distribution. For example, in September 2018, the WSL optimized Linux distribution 'WLinux' was released. However, if the Linux kernel is built into WSL2, it will be OK for users to introduce only the part of Linux that corresponds to the user space.

Linux distribution 'WLinux' optimized for running on Windows 10 comes up-GIGAZINE

The WSL kernel was built using Microsoft's CI / CD system, and Jack Hammons, Microsoft's program manager, said in the official blog, 'WSL kernel itself is the latest long-term stable release of Linux version Based on 4.19, it will be rebased with the latest long-term stable release, to ensure that the WSL kernel always reflects the strengths of the latest Linux. Also, it seems that security fixes and patches for the WSL kernel will be applied through Windows Update.

The kernel to be introduced is completely open source, with Windows Insider Build releasing WSL2, and the source code will be released to GitHub. As a result, users will be able to create their own customized WSL kernel.