GitHub Actions Transitions to GitHub-Owned Arm64 Images for Hosted Runners

GitHub announced a transition for Actions hosted runner images toward internally maintained versions. This change specifically impacts Arm64 hosted runners, which will now be fully owned and managed by GitHub rather than external providers. The transition aims to provide more reliable image updates and tighter integration with the GitHub ecosystem. Developers should prepare for phased migrations by verifying their current workflows against the upcoming image specifications. GitHub is providing validation conditions to ensure that existing pipelines remain functional throughout the update process. These changes represent a shift in how infrastructure parity is maintained across different runner architectures. Organizations relying on Arm64 runners need to monitor their CI/CD logs for transition alerts and update their runner configurations accordingly. GitHub expects this move to streamline the deployment of new features and security patches to the runner environment.