Azure Linux
The latest Azure Linux coverage — news, analysis, and updates from the WindowsNews.AI desk.
Microsoft Ships Azure Linux 4.0 Preview as a Bootable ISO—Here’s Who Actually Needs It
Microsoft has quietly published a downloadable ISO for Azure Linux 4.0, giving IT professionals and the curious a way to run its cloud-optimized operating system on local hardware or in a virtual...
From Cancer to Core: How Microsoft Marbled Linux Into Every Copy of Windows
Microsoft just shipped a Linux kernel to a billion PCs—and most owners never noticed. That quiet shift, culminating in the Windows Subsystem for Linux 2 (WSL2), marks the end of a decades-long war...
Azure Linux 4.0 Preview ISO Drops with DNF5: Here’s What You Can Safely Test
Microsoft has posted a preview ISO of Azure Linux 4.0, the first public look at the next major version of the open-source distribution that runs much of the company’s cloud infrastructure. The...
Hands-On: Microsoft's First Bootable ISO for Azure Linux 4.0 Lets Anyone Test Its Fedora-Based OS
Microsoft has released the first downloadable ISO image for Azure Linux 4.0, enabling administrators and developers to install its homegrown Linux distribution on bare-metal hardware or any virtual...
Build 2026: Microsoft Releases Azure Linux 4.0 Public Preview, a Free Fedora-Based OS for VM Scale Sets
Microsoft surprised the cloud computing world at its Build 2026 developer conference by launching Azure Linux 4.0 into public preview. The free, Microsoft-maintained Linux distribution, built on a...
Deadline Nears for Azure Linux Trusted Launch VMs: Secure Boot Certificate Update Required
Azure Linux virtual machines protected by Trusted Launch face a hard stop if administrators fail to apply critical Secure Boot certificate updates before Microsoft pulls the plug on a 2011-era...
RSA Key Exchange Flaw in GnuTLS Prompts Emergency Patch for Azure Linux 3.0
Microsoft silently released a critical security update on May 31, 2026, addressing a high-severity vulnerability in GnuTLS that could let attackers decrypt TLS-protected network traffic on Azure...
Azure Linux 4.0 Public Preview Now Available: Microsoft’s Fedora-Based Linux for Azure VMs Gets Major Refresh
Microsoft has released the public preview of Azure Linux 4.0, bringing significant updates to its RPM-based distribution derived from Fedora, on June 2, 2026. The new version is now available for...
Azure Linux 4.0 and WSL AI Toolkit Cement Linux as Microsoft’s Engine Room
Microsoft’s Build 2026 keynote opened with a statement that would have been unthinkable a decade ago: the company’s most critical infrastructure now runs on Linux, and it’s doubling down. The...
Microsoft’s Open Source Embrace: Real Perks, Strategic Lock-In, and a Catch
A decade ago, Microsoft’s then-CEO Steve Ballmer famously branded Linux a “cancer that attaches itself in an intellectual property sense to everything it touches.” Today, the same company not...
Azure Linux 4.0 Preview + Container Linux GA: Windows IT Gets Unified Linux Management
Microsoft dropped a pair of Linux announcements at Open Source Summit North America on May 18, 2026, that will reshape how Windows IT teams manage cloud workloads. Azure Linux 4.0 enters public...
Azure Linux 3.0 Admins Must Patch Critical CVE-2026-46333 ptrace Flaw Now
Microsoft’s security response team flagged CVE-2026-46333 on May 16, 2026, and updated the advisory on May 21, confirming a critical flaw in the Linux kernel’s ptrace mechanism that directly...