diff --git a/aspnetcore/grpc/json-transcoding-binding/Program.cs b/aspnetcore/grpc/json-transcoding-binding/Program.cs
index b7fa23db76..504cad5172 100644
--- a/aspnetcore/grpc/json-transcoding-binding/Program.cs
+++ b/aspnetcore/grpc/json-transcoding-binding/Program.cs
@@ -10,10 +10,13 @@ builder.Services.AddSwaggerGen(c =>
 
 var app = builder.Build();
 app.UseSwagger();
-app.UseSwaggerUI(c =>
+if (app.Environment.IsDevelopment())
 {
-    c.SwaggerEndpoint("/swagger/v1/swagger.json", "My API V1");
-});
+    app.UseSwaggerUI(c =>
+    {
+        c.SwaggerEndpoint("/swagger/v1/swagger.json", "My API V1");
+    });
+}
 app.MapGrpcService<GreeterService>();
 
 app.Run();
diff --git a/aspnetcore/grpc/json-transcoding-openapi/Program2.cs b/aspnetcore/grpc/json-transcoding-openapi/Program2.cs
index 1ccc96856c..b41abc57b4 100644
--- a/aspnetcore/grpc/json-transcoding-openapi/Program2.cs
+++ b/aspnetcore/grpc/json-transcoding-openapi/Program2.cs
@@ -15,10 +15,13 @@ builder.Services.AddSwaggerGen(c =>
 
 var app = builder.Build();
 app.UseSwagger();
-app.UseSwaggerUI(c =>
-{
-    c.SwaggerEndpoint("/swagger/v1/swagger.json", "My API V1");
-});
+if (app.Environment.IsDevelopment())
+{   
+    app.UseSwaggerUI(c =>
+    {
+        c.SwaggerEndpoint("/swagger/v1/swagger.json", "My API V1");
+    });
+}
 app.MapGrpcService<GreeterService>();
 
 app.Run();
diff --git a/aspnetcore/security/authentication/cookie.md b/aspnetcore/security/authentication/cookie.md
index cf0beb6f38..4b47bb96db 100644
--- a/aspnetcore/security/authentication/cookie.md
+++ b/aspnetcore/security/authentication/cookie.md
@@ -70,7 +70,7 @@ The Cookie Policy Middleware setting for `MinimumSameSitePolicy` can affect the
 
 To create a cookie holding user information, construct a <xref:System.Security.Claims.ClaimsPrincipal>. The user information is serialized and stored in the cookie. 
 
-Create a <xref:System.Security.Claims.ClaimsIdentity> with any required <xref:System.Security.Claims.Claim>s and call <xref:Microsoft.AspNetCore.Authentication.AuthenticationHttpContextExtensions.SignInAsync*> to sign in the user:
+Create a <xref:System.Security.Claims.ClaimsIdentity> with any required <xref:System.Security.Claims.Claim>s and call <xref:Microsoft.AspNetCore.Authentication.AuthenticationHttpContextExtensions.SignInAsync*> to sign in the user. `Login.cshtml.cs` in the sample app contains the following code:
 
 [!code-csharp[](cookie/samples/6.x/CookieSample/Pages/Account/Login.cshtml.cs?name=snippet1&highlight=22-59)]
 
diff --git a/aspnetcore/tutorials/getting-started-with-NSwag.md b/aspnetcore/tutorials/getting-started-with-NSwag.md
index 257913dc98..92459e3c5b 100644
--- a/aspnetcore/tutorials/getting-started-with-NSwag.md
+++ b/aspnetcore/tutorials/getting-started-with-NSwag.md
@@ -29,7 +29,7 @@ Install NSwag to:
 * Serve the Swagger UI to browse and test the web API.
 * Serve the Redoc to add API documentation for the Web API.
 
-To use the [NSwag](https://github.com/RicoSuter/NSwag) ASP.NET Core middleware, install the [NSwag.AspNetCore](https://www.nuget.org/packages/NSwag.AspNetCore/) NuGet package. This package contains the middleware to generate and serve the Swagger specification, Swagger UI (v2 and v3), and [ReDoc UI](https://github.com/Rebilly/ReDoc).
+To use the [NSwag](https://github.com/RicoSuter/NSwag) ASP.NET Core middleware, install the [NSwag.AspNetCore](https://www.nuget.org/packages/NSwag.AspNetCore/) NuGet package. This package contains the middleware to generate and serve the Swagger specification, Swagger UI (v2 and v3), and [ReDoc UI](https://github.com/Rebilly/ReDoc). NSwag 14 supports only v3 of the Swagger UI spec.
 
 Use one of the following approaches to install the NSwag NuGet package:
 
diff --git a/aspnetcore/tutorials/web-api-help-pages-using-swagger/samples/6.x/SwashbuckleSample/Snippets/Program.cs b/aspnetcore/tutorials/web-api-help-pages-using-swagger/samples/6.x/SwashbuckleSample/Snippets/Program.cs
index 76f45ead14..76c8f1b0c2 100644
--- a/aspnetcore/tutorials/web-api-help-pages-using-swagger/samples/6.x/SwashbuckleSample/Snippets/Program.cs
+++ b/aspnetcore/tutorials/web-api-help-pages-using-swagger/samples/6.x/SwashbuckleSample/Snippets/Program.cs
@@ -23,11 +23,14 @@ public static class Program
         // </snippet_MiddlewareJsonV2>
 
         // <snippet_MiddlewareRoutePrefix>
-        app.UseSwaggerUI(options =>
+        if (builder.Environment.IsDevelopment())
         {
-            options.SwaggerEndpoint("/swagger/v1/swagger.json", "v1");
-            options.RoutePrefix = string.Empty;
-        });
+            app.UseSwaggerUI(options =>
+            {
+                options.SwaggerEndpoint("/swagger/v1/swagger.json", "v1");
+                options.RoutePrefix = string.Empty;
+            });
+        }
         // </snippet_MiddlewareRoutePrefix>
     }
 
diff --git a/aspnetcore/web-api/http-repl/samples/SwaggerApp/Startup.cs b/aspnetcore/web-api/http-repl/samples/SwaggerApp/Startup.cs
index 472651a805..7e2fb45d5e 100644
--- a/aspnetcore/web-api/http-repl/samples/SwaggerApp/Startup.cs
+++ b/aspnetcore/web-api/http-repl/samples/SwaggerApp/Startup.cs
@@ -32,11 +32,11 @@ namespace SwaggerApp
         public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
         {
             app.UseOpenApi();
-            app.UseSwaggerUi3();
 
             if (env.IsDevelopment())
             {
                 app.UseDeveloperExceptionPage();
+                app.UseSwaggerUi3();
             }
             else
             {