The changes came after user feedback, thus improving the first version, which was released in 2016 and widely distributed in 2018.
In its blog for devs, Microsoft pondered the new version of WSL:
WSL 2 is a new version of the architecture that powers Windows Subsystem for Linux to run ELF64 Linux binaries on Windows. This new architecture changes the way these Linux binaries interact with Windows and your computer hardware, but still provides the same user experience as in WSL 1 (the current widely available version).
Individual Linux distributions can be run as a WSL 1 distro or as a WSL 2 distro, and can be upgraded and downgraded at any time, you can run WSL 1 and WSL 2 distros side by side. WSL 2 uses an entirely new architecture and uses a real Linux kernel. Craig Loewen, Program Manager, Windows Developer Platform.
WSL 2 features an integrated and customized Linux kernel from Microsoft for full compatibility with system calls (being tailored to how Windows works), updates via Windows Update using Linux version 4.19. It will be available for testing by the end of June for users enrolled in the Windows Insider program.
Does Windows now run Linux?
Officially Windows brings two Kernels to the system, with traditional NT Kernel still being the main one, making all this communication of Windows with computer hardware for most tasks, the inevitable question: Until when? Will the Linux Kernel ever be the sole basis of the Microsoft system?
Guessing the future is difficult, but given the junction between the two platforms, it's not so hard to imagine something like this happening in the future, Microsoft would certainly save a few million dollars developing in its own kernel, if change is technically possible.
We also see Microsoft helping, albeit not so much, the Wine project through Windows and related drivers, all of which may end up generating a very interesting hybrid platform, much more open source than at any time in the past, but still Windows.
Keep following the blog to stay tuned in the news.
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