Update to ASP.NET Core 8 Preview 4

Author: dodyg

README.md

@@ -1,6 +1,6 @@
 # Samples for ASP.NET Core 6.0 (471)
 
-Samples for ASP.NET Core **8.0 Preview 3** is available [here](/projects/.net8) (9).
+Samples for ASP.NET Core **8.0 Preview 4** is available [here](/projects/.net8) (9).
 
 Samples for ASP.NET Core **7.0** is available [here](/projects/.net7) (45).
 

projects/.net8/README.md

@@ -1,6 +1,6 @@
-# ASP.NET 8.0 Preview 3 (9)
+# ASP.NET 8.0 Preview 4 (9)
 
-These samples require [.NET 8.0 Preview 3](https://dotnet.microsoft.com/en-us/download/dotnet/8.0). 
+These samples require [.NET 8.0 Preview 4](https://github.com/dotnet/installer#table). 
 
 
 * [QuickGrid One](QuickGridOne)

projects/.net8/global.json

@@ -1,6 +1,6 @@
 {
   "sdk": {
-    "version": "8.0.100-preview.3.*",
+    "version": "8.0.100-preview.4.*",
     "rollForward": "major"
   }
 }

projects/.net8/nuget.config

@@ -1,10 +1,8 @@
 <?xml version="1.0" encoding="utf-8"?>
 <configuration>
     <packageSources>
-        <!--
         <clear />
         <add key="aspnetcore" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet8/nuget/v3/index.json" />
         <add key="NuGet.org" value="https://api.nuget.org/v3/index.json" />
-        -->
     </packageSources>
 </configuration>