FSharpCore 4.4.0.0 for version fsharp 4.0 vs fsharpcore 4.1 with fsharp 4.1

Question

I'm confused.

I'm upgrading an old project that has references to FSharp.Core 4.4 everywhere yet the latest version of fsharp.core on nuget is 4.1.*.*

Is there a document explain what is going on with the version numbers going backwards?

Answer 1

The document is here, under "FSharp.Core version numbers"

FSharp.Core 4.4.0.0 corresponds to F# 4.0 running on .NET 4.5+.

The Nuget packages have a different versioning system where the first two digits are the F# version. Each nuget package targets one version of F#, but contains multiple FSharp.Core versions for different profiles. E.g. FSharp.Core Nuget version 4.1.12 is the latest Nuget package for F# 4.1 and contains FSharp.Core 4.4.1.0 for desktop, and various FSharp.Core portable profiles 3.N.4.1.