F# 10 adds #warnon, property accessor control, and struct ValueOption

F#, the programming language for .NET, new version 10 refines the language, core library, and tooling with clarity and performance improvements. It introduces the #warnon directive, giving developers granular control over warning suppression in specific code sections. The release also allows different access modifiers for property getters and setters, simplifying encapsulation. Optional parameters can now use the struct-based ValueOption, reducing heap allocations and improving memory performance.