OCaml 5.4.0 Released
14 hours ago
- #Functional
- #OCaml
- #Programming
- OCaml version 5.4.0 released, celebrating birthdays of Camille Saint-Saëns and Karl Schwarzschild.
- New feature: Labelled tuples, allowing labels on tuple fields, similar to SML records.
- Array literal syntax now supports immutable arrays and floatarrays, unifying syntax across array-like types.
- Introduction of immutable arrays ('a iarray) with covariant element types, allowing runtime coercion without cost.
- Atomic record fields introduced, requiring explicit atomic operations via the Atomic.Loc submodule.
- Four new standard library modules: Pair, Pqueue, Repr, and Iarray, expanding functionality for pairs, priority queues, equality comparison, and immutable arrays.
- Restoration of 'memory cleanup upon exit' mode for C-driven programs using OCaml libraries, aiding in memory leak tracking.
- New profiling section in the reference manual for Linux and macOS, detailing OS-specific tools for native OCaml programs.
- Numerous incremental improvements including runtime enhancements, new standard library functions, improved error messages, and bug fixes.
- Installation instructions provided for OCaml 5.4.0 via opam, including options for fine-tuned compiler configurations.