In this video, we make make changes to the main layout of our application by adding a label which displays a welcome message to currently logged on user. We also add a button that the currently logged on user will use to sign out. In addition we make changes to startup.cs file in the server part of our application and also make changes to program.cs file in the client part of our app. We also add Microsoft.AspNetCore.Components.Authorization package to the client part of our app. We also enable cookie authentication in this lesson.