The release of .NET 10 brings with it F# version 10. It's a refinement‑focused update that enhances the language's ergonomics, improves performance, and optimises compiler behaviour for everyday functional development. For F# developers used to the patterns of F# 6‑9, many language improvements have focused on new syntax or major paradigms. With F# 10, the emphasis shifts: rather than introducing sweeping new features, the team targets clarity, consistency, and the performance foundations of large codebases.