[Ubuntu] `ubuntu-latest` label will use Ubuntu 26.04 in November 2026

### Breaking changes The `ubuntu-latest` label is ready to become the default version for Ubuntu 26.04. ### Target date This change will be rolled out over a period of several weeks beginning October 19, 2026. We plan to complete the migration by November 19, 2026. ### The motivation for the changes Ubuntu 26.04 has completed its public preview period and is generally available for production workloads. We have monitored customer feedback and image stability, and are now ready to set it as the latest version for the x64 `ubuntu-latest` label. ### Possible impact Workflows and pipelines that depend on Ubuntu 24.04-specific software, package versions, system libraries, compilers, or prebuilt binaries may be affected. ### Software difference between Ubuntu 24.04 and Ubuntu 26.04 | Tool name | Ubuntu 24.04 | Ubuntu 26.04 | Notes | |-----------|--------------|--------------|-------| | Operating system | Ubuntu 24.04.5 LTS | Ubuntu 26.04.1 LTS | New Ubuntu LTS release | | Kernel | 6.17.0-1022-azure | 7.0.0-1012-azure | Updated with the new operating system | | Systemd | 255.4-1ubuntu8.17 | 259.5-0ubuntu3.4 | Updated with the new operating system | | Docker Buildx | 0.37.0 | 0.37.0 | Available on both images | | Minikube | 1.39.0 | 1.39.0 | Available on both images | | AWS CLI | 2.36.40 | 2.36.40 | Available on both images | | Azure CLI | 2.90.0 | 2.90.0 | Available on both images | | Google Cloud CLI | 583.0.0 | 583.0.0 | Available on both images | | Rust | 1.98.1 | 1.98

Posted by v-AndriiKhyliuk on Sep 17, 2026, 1:42 PM

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