Where can you find the complete list of software pre-installed on GitHub-hosted runners?
Select an answer to reveal the explanation.
Short Explanation and Infographic
The runner-images repository is the source of truth — it lists every pre-installed tool, version, and when they're updated.
Full explanation below image
Full Explanation
GitHub maintains the 'actions/runner-images' repository which contains the Packer templates and installed software lists for each runner image. Each image has a 'README.md' in its directory listing all pre-installed software and versions. GitHub also generates software reports that appear in workflow run logs. The main GitHub Actions docs page has overview information but not exhaustive tool lists. GitHub Marketplace lists actions, not runner software. GITHUB_ENV is for setting environment variables during runs, not querying installed software.