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Every operating system reaching end-of-life
5 OS entries across every vendor we track — soonest first. Each links to the vendor’s own announcement.
OS →25 days
Microsoft Windows 11 24H2 stops receiving updates on Home, Pro, Pro Education and Pro for Workstations
OS →44 days
Alpine Linux The Alpine Linux 3.21 release branch reaches end of support (end of life) on November 1, 2026. After that date the 3.21 branch stops receiving security fixes and package updates, so container images built on the `alpine:3.21` base tag no longer get patched.
OS →12 weeks
Microsoft Azure Microsoft is retiring Azure Linux with OS Guard (preview) as a node pool operating system in Azure Kubernetes Service (AKS). Support ends December 10, 2026, after which no new Azure Linux with OS Guard node pools can be created and existing pools stop receiving node images and security patches; on March 10, 2027 AKS removes the node images entirely. Azure Container Linux is the named replacement.
OS ↙gone
CentOS / Red Hat CentOS Linux 7 reached end-of-life
OS ↙gone