Azure deployment slot swap

When you want to implement blue-green deployment using Azure App Services, deployment slots is the way to go You can create a staging slot

A deployment slot allows you to deploy your function to the slot and be able to test it separately to the production instance It will have its

deployment slot swap with preview Azure Functions deployment slots allow your function app to run different instances called slots Slots are different environments exposed via a

deployment slot Azure Function deployment slots are offer seamless delivery and already in GA But how they work and why they are different from non-serverless plans?