https://www.dotnetzone.gr:443/cs/blogs/ppolyzos/archive/2016/01/31/deployment-slots-and-app-initialization-module-in-azure-web-apps.aspxWhen you create an Azure website, you are automatically provided with a production slot that represents your live website. In addition, with each deployment slot, you are eligible to create up to four additional deployment slots that you may swap withenCommunityServer 2.1 SP3 (Build: 20423.1)