OPAM Builder is now testing this version too. I will remove 4.03.0+beta1 soon, as the result page is starting to be a little too big with too many OCaml versions.

http://opam.ocamlpro.com/builder/html/report-last.html

--Fabrice 

On Sat, Apr 2, 2016 at 1:52 PM Goswin von Brederlow <goswin-v-b@web.de> wrote:
On Fri, Apr 01, 2016 at 04:01:42PM +0200, Damien Doligez wrote:
> Dear OCaml users,
>
> OCaml release 4.03.0 will arrive in about 2 weeks.  We have
> created a second beta version for your testing pleasure.  Please
> test your favourite software with it and let me know whether it
> works for you.
>
> If you are a library author, please make sure your library will
> work with 4.03.0, and update it if needed.
>
> This beta version is available as an OPAM switch (4.03.0+beta2)
> and also as source code at this address:
>   http://caml.inria.fr/pub/distrib/ocaml-4.03/
>
> Happy hacking,
>
> -- Damien Doligez for the OCaml team.
>
>
>
> OCaml 4.03.0:
> -------------
>
> - GPR#22: Add the Ephemeron module that implements ephemerons and weak
>   hash table
>   (François Bobot, review by Damien Doligez, Daniel Bünzli,
>   Alain Frisch, Pierre Chambart)

Does that include the discussed documentation and helper functions for
accessing Weak.t from C bindings?

Note: release notes should warn about Weak.t memory representaion
being changed and code using it from C breaking.

MfG
        Goswin

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