What’s New in F# 9 for Quant Developers

Unlike general-purpose updates, many of F# 9’s features are particularly well-aligned with the needs of quantitative professionals—those who balance mathematical modeling, financial computation, and high-integrity codebases. These improvements refine the language’s functional core while addressing practical challenges faced in real-world applications, such as code readability, workflow modularity, and precision in data modeling. In this post, I’ll walk through some of the key updates in F# 9 and explore how they can improve the way we write and structure quantitative code.