It's everyone's favourite time of the year – the time for a new OCaml release! 5.4 brings improvements and optimisations as well as new features, some of which may be familiar to long-time members of the OCaml community. Today's post highlights some of the work done to improve the language for everyone. As always, we can't cover everything, and for a more exhaustive list, I recommend checking out the changelog in the OCaml repo. Let's dive in! Immutable Arrays Immutable arrays, as their nam...