[Caml-list] Attn: Development Editor, Latest OCaml Weekly News

Alan Schmitt
2021-09-28T06:37:49Z

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Hello

Here is the latest OCaml Weekly News, for the week of September 21 to
28, 2021.

Table of Contents
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Brr 0.0.2, a toolkit for programming browsers
Become an Outreachy Mentor: support the growth and diversity of the OCaml community
OCaml 4.13.0 (and 4.12.1)
Other OCaml News
Old CWN

Brr 0.0.2, a toolkit for programming browsers
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Archive:
<https://discuss.ocaml.org/t/ann-brr-0-0-2-a-toolkit-for-programming-browsers/8521/1>

Daniel Bünzli announced
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It's my pleasure to announce the release `0.0.2' of [`Brr'], a toolkit
for programming browsers in OCaml with the [`js_of_ocaml'] compiler.

Once it has made it to the repo, install with `opam install brr' and
consult the [API docs and manuals] (or via `odig doc brr').

This release fixes binding bugs, adds a few new bindings and tweaks
some existing signatures. Thanks to all of those who provided bug
reports, suggestions and code.

The [release notes] have all the details.

[`Brr'] <https://erratique.ch/software/brr>

[`js_of_ocaml'] <https://ocsigen.org/js_of_ocaml>

[API docs and manuals] <https://erratique.ch/software/brr/doc/>

[release notes]
<https://github.com/dbuenzli/brr/blob/master/CHANGES.md#v002-2020-09-23-zagreb>

Become an Outreachy Mentor: support the growth and diversity of the OCaml community
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Archive:
<https://discuss.ocaml.org/t/become-an-outreachy-mentor-support-the-growth-and-diversity-of-the-ocaml-community/8213/13>

Thibaut Mattio announced
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I've submitted two projects for the winter session:

• Integrate a package health check in ocaml.org

To essentially integrate a version of check.ocamllabs.io that can be
used by opam-repository maintainers and opam users into the next
version of ocaml.org (<https://v3.ocaml.org>).

• Support `.eml' files in OCaml's VSCode extension

To add support for Dream's [`.eml' files] syntax in the extension, and
eventually have error reporting for these files from OCaml LSP Server.

I'm more than interested in having co-mentors for these two projects,
so if you wanted to mentor Outreachy interns but didn't have any
project ideas, don't hesitate to reach out :slight_smile:

Another way to help that does not involve mentoring is to find good
first issues that will help onboard and select candidates for the
projects. Any help on this effort to identify, create and document
good first issues for the different projects is more than welcome!

[`.eml' files]
<https://github.com/aantron/dream/tree/master/example/7-template>

OCaml 4.13.0 (and 4.12.1)
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Archive: <https://discuss.ocaml.org/t/ocaml-4-13-0-and-4-12-1/8529/1>

octachron announced
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The OCaml team ha the pleasure of celebrating the 175th anniversary of
the discovery of Neptune by announcing the joint releases of OCaml
version 4.13.0 and 4.12.1 .

Some of the highlights in the 4.13.0 release are:

• Safe points: a multicore prerequisite that ensures that
ocamlopt-generated code can always be interrupted.
• The best-fit GC allocation policy is now the default policy (and
many other GC improvements).
• Named existential type variables in pattern matching: `Showable
(type a) (x, show : a * (a -> string))'.

• Improved error messages for functor application and functor types.
• Let-punning for monadic let: `let* x = x in' can be shortened to
`let* x in'.
• Module type substitutions: `SIG with module type T = F(X).S'.

• Many other quality of life improvements
• Many bug fixes

The 4.12.1 release is a collection of safe bug fixes, cherry-picked
from the 4.13.0 development cycle. If you were using OCaml 4.12.0 and
cannot yet upgrade to 4.13.0, this release is for you.

The full list of changes can be found in the changelogs
below. (*Editor note*: as it’s quite long, it is not included
here. Please follow the link to the original article to read it.)

Those releases are available as OPAM switches, and as a source
download here:

• <https://github.com/ocaml/ocaml/archive/4.13.0.tar.gz>
• <https://caml.inria.fr/pub/distrib/ocaml-4.13/>

and there:

• <https://github.com/ocaml/ocaml/archive/4.12.1.tar.gz>
• <https://caml.inria.fr/pub/distrib/ocaml-4.12/>

Other OCaml News
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From the ocamlcore planet blog
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Here are links from many OCaml blogs aggregated at [OCaml Planet].

• [Announcing Tezos’ 8th protocol upgrade proposal: Hangzhou]
• [Measuring OCaml compilation speed after a refactoring]
• [Writing Lifters Using Primus Lisp]
• [Tarides Returns to FIC 2021]
• [Generating static and portable executables with OCaml]

[OCaml Planet] <http://ocaml.org/community/planet/>

[Announcing Tezos’ 8th protocol upgrade proposal: Hangzhou]
<https://marigold.dev/blog/announcing-hangzhou/>

[Measuring OCaml compilation speed after a refactoring]
<http://gallium.inria.fr/blog/measuring-compilation-time/>

[Writing Lifters Using Primus Lisp]
<http://binaryanalysisplatform.github.io/2021/09/15/writing-lifters-using-primus-lisp/>

[Tarides Returns to FIC 2021]
<https://tarides.com/blog/2021-09-06-tarides-returns-to-fic-2021>

[Generating static and portable executables with OCaml]
<https://www.ocamlpro.com/2021/09/02/generating-static-and-portable-executables-with-ocaml/>

Old CWN
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If you happen to miss a CWN, you can [send me a message] and I'll mail
it to you, or go take a look at [the archive] or the [RSS feed of the
archives].

If you also wish to receive it every week by mail, you may subscribe
[online].

[Alan Schmitt]

[send me a message] <mailto:alan.schmitt@polytechnique.org>

[the archive] <https://alan.petitepomme.net/cwn/>

[RSS feed of the archives] <https://alan.petitepomme.net/cwn/cwn.rss>

[online] <http://lists.idyll.org/listinfo/caml-news-weekly/>

[Alan Schmitt] <https://alan.petitepomme.net/>

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