Dear OCaml users,

The release of OCaml 5.2.0 is imminent.
As a final step, we are publishing a release candidate to check that everything is in order before the release in the upcoming week(s).

If you find any bugs, please report them on OCaml's issue tracker at https://github.com/ocaml/ocaml/issues.

Compared to the second beta release, this release contains one small compiler-libs printer fix and one configuration tweak.

The full change log for OCaml 5.2.0 is available on GitHub (https://github.com/ocaml/ocaml/blob/5.2/Changes).
A short summary of the changes since the second beta release is also available below.

Happy hacking,
Florian Angeletti for the OCaml team.

Installation Instructions

------------------------------

The base compiler can be installed as an opam switch with the following commands on opam 2.1 and later:

     opam update
     opam switch create 5.2.0~rc1


The source code for the release candidate is also directly available on:

* GitHub: https://github.com/ocaml/ocaml/archive/5.2.0-rc1.tar.gz
* OCaml archives at INRIA: https://caml.inria.fr/pub/distrib/ocaml-5.2/ocaml-5.2.0~rc1.tar.gz

Fine-Tuned Compiler Configuration

----------------------------------------------

If you want to tweak the configuration of the compiler, you can switch to the option variant with:

    opam update
    opam switch create <switch_name> ocaml-variants.5.2.0~rc1+options <option_list>

where `<option_list>` is a space-separated list of `ocaml-option-*` packages. For instance, for a `flambda` and `no-flat-float-array` switch:

    opam switch create 5.2.0~rc1+flambda+nffa ocaml-variants.5.2.0~rc1+options ocaml-option-flambda ocaml-option-no-flat-float-array

All available options can be listed with `opam search ocaml-option`.

Changes since the second beta

------------------------------------------

 
  - #13130(https://github.com/ocaml/ocaml/issues/13130): Minor fixes to `pprintast` for raw identifiers and local module open
    syntax for types.
    (Chet Murthy, review by Gabriel Scherer)
 
  - #13100(https://github.com/ocaml/ocaml/issues/13100) Fix detection of `zstd` when compiling with `musl-gcc`
    (David Allsopp, review by Samuel Hym)