They link to "Announcing C# 12", but not a single mention of F# and "Announcing F# 8"[1], huh? (Edit: At least there's a link now.)
It actually addresses several warts (finally span pinning!), brings some new shortands, makes the syntax more uniform and comes with some performance improvements as well.
[1]: https://devblogs.microsoft.com/dotnet/announcing-fsharp-8/