A developer wants to test a new app version without affecting current users. Which deployment strategy in Azure App Service supports this?

Slot Deployment (or Deployment Slots) in Azure App Service allows you to deploy different versions of your application to separate, pre-production slots. You can test the new app version in a staging slot without impacting the live production slot. Once testing is complete and satisfactory, you can swap the staging slot with the production slot, making the new version live with minimal downtime. Rolling Deployment involves gradually replacing instances of the old version with the new version, which can affect users during the transition. Blue-Green Deployment uses two identical production environments, but it's a broader strategy often implemented using slots, not a direct App Service feature name for this specific scenario. Incremental Deployment is a general term for phased rollouts, which could involve slots but isn't the specific Azure App Service feature.