# Microsoft.AspNetCore.Authentication.Cookies

``` diff
 namespace Microsoft.AspNetCore.Authentication.Cookies {
     public class PostConfigureCookieAuthenticationOptions : IPostConfigureOptions<CookieAuthenticationOptions> {
-        public void PostConfigure(string name, CookieAuthenticationOptions options);
+        public void PostConfigure(string? name, CookieAuthenticationOptions options);
     }
 }
```

