Blue/green deployment

Blue/green deployment, sometimes referred to as red/black deployment, is a technique for releasing applications by shifting traffic between two identical environments running differing versions of the application. Blue/green deployment helps you minimize downtime during application updates, mitigating risks surrounding downtime and rollback functionality.

Blue/green deployments enable you to launch a new version (green) of your application alongside the old version (blue), and monitor and test the new version before you reroute traffic to it, rolling back on issue detection.