I'm trying to use FSharp.Compiler.Service 38.0.1-beta.20607.1 from our nuget feed and am getting this:

 FSharp.Compiler.Service 38.0.1-beta.20607.1 requested package FSharp.Core: 5.0.1-beta.20607.1 (beta)*

This is because FSharp.Compiler.Service is currently being built against latest in-branch FSharp.Core on the CI feed

I believe we should simply stop building against the in-repo FSharp.Core at all (though we can test against it in test projects) and always build against a stable, known, public FSharp.Core like 4.7.2 or 5.0.0. This has many benefits

1. makes it possible to use latest nuget packages from our nuget feed without picking up a dependency on a beta FSharp.Core
2. increase the reach of the whole FCS ecosystem