Workflows using the ubuntu-latest runner label will soon run on Ubuntu-20.04. GitHub Actions has supported Ubuntu-20.04 in preview mode since June 2. During these past four months we have monitored image stability and customer feedback, and waited for a range of critical software tools to improve support for Ubuntu-20.04.
Now Ubuntu-20.04 is ready to be the default version for the ubuntu-latest label in GitHub Actions workflows. This change will be rolled out over a period of several weeks beginning on November 30, 2020.
If you see any issues with your workflows when they are transitioned to Ubuntu-20.04:
ubuntu-18.04 runner label. We will continue to support Ubuntu 18.04.Note that image software between Ubuntu-18.04 and Ubuntu-20.04 differs by the pre-installed and default versions versions of some tools. See the full list of changed software.
macOS Big Sur, or 11.0, is now available in preview for GitHub Actions. Try it by setting runs-on: macos-11.0 in your workflow file.
The MacOS 11.0 Big Sur virtual environment has different tools and tool versions than MacOS 10.15 Catalina. See the full list of changed software.
If you see any issues with your workflows when using Big Sur create an issue in the virtual-environments repository.
When a vulnerability is added to GitHub Advisory Database, the resulting Dependabot alert and security update notifications can be noisy. To help you focus on what matters, we've made a few changes to how Dependabot notifies you:
You can learn more about configuring your Dependabot notifications in our documentation.