This is not quite accurate. fsharp/fsharp is the F# Open Edition repo, and has existed since long before the current (well, obsolete as of this week) Microsoft

This is not quite accurate. fsharp/fsharp is the F# Open Edition repo, and has existed since long before the current (well, obsolete as of this week) Microsoft Visual F# repo on Codeplex. The F# Open Edition repo targets Linux/Mac/Mono explicitly. Compared to the Visual F# repo, it's quite close, but has a handful of tweaks to account for mono/xplat, plus has a bunch of xplat packaging capabilities. Before the VF# repo opened for business earlier this year, Open Edition was maintained based on the per-release F# code drops that constituted the old open source strategy for F#. Anyways, Visual F# (i.e. owned by MSFT, targeting windows/VS) is now at https://github.com/microsoft/visualfsharp https://github.com/microsoft/visualfsharp. There is even a [doc](https://github.com/Microsoft/visualfsharp/wiki/Code-Flow-to-Open-Edition https://github.com/Microsoft/visualfsharp/wiki/Code-Flow-to-...) explaining how the code flows to Open Edition from there.