HOTSPOT You use Azure Pipelines lo manage the build and deployment of apps. You are planning the release strategies for a new app. You need to choose strategies for the following scenarios: • Releases will be made available to users who are grouped by their tolerance for software faults. • Code will be deployed to enable functionality that will be available in later releases of the app. • When a new release occurs, the existing deployment will remain active to minimize recovery time if a return to the previous version is required. 
Progressive exposure, feature flags, blue/green.
Progressive rollout, feature toggles, and canary deployment. I think these fit here because canary is for minimizing rollback time right? Not totally sure about the last one, someone double-check me.
