anchor.diff:          | FrameworkVersion.V4_6_2 -> "462"
           | FrameworkVersion.V4_6_3 -> "463"
           | FrameworkVersion.V4_7 -> "47"
  +        | FrameworkVersion.V4_7_1 -> "471"
           | FrameworkVersion.V5_0 -> "50"
   
       static member TryParse s =
  
positive.code:         | DotNetFramework FrameworkVersion.V4_6_2 -> [ DotNetFramework FrameworkVersion.V4_6_1; DotNetStandard DotNetStandardVersion.V1_5 ]
          | DotNetFramework FrameworkVersion.V4_6_3 -> [ DotNetFramework FrameworkVersion.V4_6_2 ]
          | DotNetFramework FrameworkVersion.V4_7 -> [ DotNetFramework FrameworkVersion.V4_6_3]
          | DotNetFramework FrameworkVersion.V5_0 -> [ DotNetFramework FrameworkVersion.V4_7 ]
          | DNX _ -> [ ]
          | DNXCore _ -> [ ]
          | DotNetStandard DotNetStandardVersion.V1_0 -> [  ]
  
negative.code:         | "4.6.2" -> Some FrameworkVersion.V4_6_2
          | "4.6.3" -> Some FrameworkVersion.V4_6_3
          | "4.7" -> Some FrameworkVersion.V4_7
          | "4.7.1" -> Some FrameworkVersion.V4_7_1
          | "5" -> Some FrameworkVersion.V5_0
          | _ -> None
  
  