Selasa, 28 April 2026

Microsoft Might Be Rebasing Azure on Fedora Linux

Microsoft's in-house Linux distribution, Azure Linux, may be heading for a significant overhaul. According to a recent report, the Big Tech giant is reportedly exploring the idea of rebasing Azure Linux on Fedora, which would be a notable shift in how the distribution is built and maintained.

Azure Linux, which longtime followers of the Linux space may know better as CBL-Mariner, has been Microsoft's internal Linux OS powering Azure services, WSL, Azure Local, and more since 2020.

It is already RPM-based, so a move toward Fedora would not be a complete departure from its existing foundation, but it would represent a serious overhaul.

a cropped screenshot of the fedora eln sig meeting on april 21 that shows conversation between neal gompa and yaakov selkowitz
The conversation between Neal Gompa (conan_kudo) and Yaakov Selkowitz (yselkowitz).

It all came to light from the recent Fedora ELN SIG meeting on April 21. During a discussion about a proposed Fedora change to build x86-64-v3 packages for Fedora 45, it was pointed out that Microsoft is one of the driving forces behind this proposal.

The change proposal was put forward jointly by Kyle Gospodnetich, a Linux engineer at Microsoft, alongside Lleyton Gray and Owen Zimmerman of Fyra Labs. Microsoft's interest appears to be tied to Azure Linux's need for x86-64-v3 performance gains, which is part of what is driving the rebase idea.

Fyra Labs, which is reportedly launching its own cloud service and wants x86-64-v3 support for Fedora and Ultramarine Linux, is also co-authoring the proposal.

It is worth noting that the x86-64-v3 change proposal still needs to be approved by the Fedora Engineering Steering Committee (FESCo) before anything moves forward.

There had also been talk of forking the whole distribution to achieve this, but Microsoft was steered toward working within the Fedora ecosystem instead.

On the surface, all of this sounds promising. As a Redditor pointed out, since Fedora is effectively upstream Red Hat Enterprise Linux, the move makes logical sense on paper.

That said, Microsoft has a history of open source commitments that lose steam over time. If they can properly follow through here, contribute meaningfully to Fedora, and not treat it as a one-way resource tap, this could genuinely be good for the ecosystem.

All of that is a big if, but it is worth watching closely.


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