chore(upgrade): dotnet 5 previews update

Author: marin-bratanov

upgrade/framework-versions.md

@@ -64,13 +64,13 @@ The client-side (WebAssembly) flavor of Blazor is a set of separate NuGet packag
 
 ## .NET 5
 
-The future of .NET Core will eventually be through .NET 5. Its [third preview](https://devblogs.microsoft.com/aspnet/asp-net-core-updates-in-net-5-preview-3/) is already available.
+The future of .NET Core will eventually be through .NET 5. Its [fifth preview](https://devblogs.microsoft.com/aspnet/asp-net-core-updates-in-net-5-preview-5/) is already available.
 
-The Telerik UI for Blazor suite is committed to the WebAssembly flavor of Blazor and we need to make sure we are compatible with its own previews (at the moment - .NET Core 3.2.0 RC1) and subsequently - its official version.
+The Telerik UI for Blazor suite is committed to the WebAssembly flavor of Blazor and we need to make sure we are compatible with its own main line of releases (at the moment - .NET Core 3.2.0).
 
 We cannot guarantee compatibility with the .NET 5 previews.
 
-The situation may be revised after the client-side (WebAssembly) implementation of Blazor becomes official.
+The situation may be revised at a later time.
 
 
 ## See Also