升级到新的.NET Framework-app.config中支持的运行时版本VS sku？

Question

I'm upgrading from .NET 4.0 to 4.7.1

two things that concern me.

1. App.Config- <startup><supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.7.1"/></startup></configuration> does that mean that it really hasn't upgrade to newer framework and is running at 4.0.0 instead of 4.7.1?

2. In a class that is autogenerated by svcutil?

   auto-generated // This code was generated by a tool. // Runtime Version:4.0.30319.18444

   it generates:

   [System.CodeDom.Compiler.GeneratedCodeAttribute("System.Runtime.Serialization", "4.0.0.0")]

Would I have to delete all the autogenerated class and somehow regenerate that with the newer framework or can I just manually change them to 4.7.1?

Answer 1

does that mean that it really hasn't upgrade to newer framework and is running at 4.0.0 instead of 4.7.1?

No, when you set the sku=".NETFramework,Version=v4.7.1" , that means that .NET 4.7.1 is required to run the application. The runtime version is common for all 4.X Frameworks. Similar to as .NET 2.0, 3.0 and 3.5 have all the runtime version 2.0.50727.

Answer 2

For all .net 4.x subreleases the runtime version entry is 4.0 in the app.config

The SKU entries specifies which .net 4.x version you target and sku=".NETFramework,Version=v4.7.1" means you target .net framework 4.7.1