Serve a default starter kit if the version is higher than 7.6.4

OurUmbraco.Site/web.template.config

@@ -105,6 +105,7 @@
     <add key="SpamBlockThreshold" value="90" />
     <add key="ValidationSettings:UnobtrusiveValidationMode" value="None" />
     <add key="UmbracoStarterKits" value="55E028E3-0C5B-4188-9722-7D14B4BD12C0,69E44BEB-15FF-4CEE-8B64-0A7DAE498657,0B0101F7-9394-48F3-A581-DD3F18480265" />
+    <add key="UmbracoStarterKitDefault" value="ced954d1-8c0f-4abe-bdda-99e7a787d052"/>
 
     <add key="SlackChannel" value="#our-spam-reports" />
     <add key="SlackToken" value="" />

OurUmbraco/Repository/Controllers/StarterKitController.cs

@@ -60,6 +60,16 @@ namespace OurUmbraco.Repository.Controllers
             var starterKits = new List<StarterKit>();
             var allConfiguredVersions = UWikiFileVersion.GetAllVersions();
 
+            // for 7.6.4+ we change behavior and only provide one starter kit
+            if (version >= new System.Version(7, 6, 4))
+            {
+                officialStarterKitGuidCollection = new List<string>
+                {
+                    ConfigurationManager.AppSettings["UmbracoStarterKitDefault"]
+                };
+            }
+
+
             foreach (var umbracoNode in umbracoNodes)
             {
                 // If it's not in the official list, move on to the next package