developer-professional video for you are deploying a new version of your application and want to perform gradual testing in production to minimize the impact of
You are deploying a new version of your application and want to perform gradual testing in production to minimize the impact of potential bugs. You want to route a subset of production traffic to the new version based on the geographic region of the users. The deployment should also allow for immediate rollback in case of critical issues. Which service and feature should you use?