OCaml Weekly News
Hello
Here is the latest OCaml Weekly News, for the week of August 20 to 27, 2019.
Table of Contents
Lascar-0.6-alpha
jserot announced
This is to announce the availability of version 0.6 of Lascar
, a library for manipulating Labeled Transition Systems in OCaml.
This release is essentially a repackaging to support building and installing with dune
and removing the dependency on camlp4
.
Lascar
is available in source code from github or as a opam package.
Lwt 4.3.0 — preparing for 5.0.0
Anton Bachin announced
We are pleased to announce release 4.3.0 of Lwt, the promise and concurrent I/O library. It is now installable from opam:
opam update && opam upgrade lwt
https://github.com/ocsigen/lwt
Lwt 4.3.0 is a relatively small release, offering a few improvements. However, it announces several new breaking changes for the upcoming Lwt 5.0.0. Everything is detailed in the full changelog. Lwt 5.0.0 is planned for November 2019, three months from now.
The breaking changes are relatively minor and should affect few users. About half are simply removing unused features, some of which are experimental features that never matured.
There are two breaking changes planned for 5.0.0 that are probably relevant to everyone:
The signature of
Lwt.async
will becomeLwt.async : (unit -> unit Lwt.t) -> unit
See #603.
Lwt.choose
,Lwt.pick
, and similar functions, will raiseInvalid_argument
if called with an empty list. Right now, they return a promise that never resolves. See #562.
Happy concurrent programming!
Are there any OCaml podcasts out there?
Ozan Sener asked
Over the last two years OCaml has become my favorite language to program in. Decades of resources, open source projects, mailing list posts and IRC/Discord logs all helped me develop a taste for ML and build real things that were previously out of my comfort zone. Unfortunately, I'm currently not in a circle where I can tap into know-how of experienced OCaml developers, and I feel like I'm missing out.
I've been listening to https://reason.town/ lately, and I really like the casual format. Do you have anything similar, on any medium, that you are following?
Yawar Amin replied
I've never heard of an OCaml-specific podcast but I think sometimes OCamlers go on as guests in other podcasts. One that I enjoyed was @avsm on FLOSS Weekly talking about Mirage and OCaml https://twit.tv/shows/floss-weekly/episodes/302
Armael also replied
There was also a series of podcasts done during the December 2017 MirageOS hack retreat: https://discuss.ocaml.org/t/mirageos-audio-profiles-podcast-series/1482.
Other OCaml News
From the ocamlcore planet blog
Here are links from many OCaml blogs aggregated at OCaml Planet.
Old CWN
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.