OPAM 1.1.0 release candidate out

Auteurs: Louis Gesbert
Date: 2013-10-14
Catégorie: Tooling
Tags: opam

OPAM 1.1.0 is ready, and we are shipping a release candidate for packagers and all interested to try it out.

This version features several bug-fixes over the September beta release, and quite a few stability and usability improvements. Thanks to all beta-testers who have taken the time to file reports, and helped a lot tackling the remaining issues.

Repository change to opam.ocaml.org

This release is synchronized with the migration of the main repository from ocamlpro.com to ocaml.org. A redirection has been put in place, so that all up-to-date installation of OPAM should be redirected seamlessly. OPAM 1.0 instances will stay on the old repository, so that they won't be broken by incompatible package updates.

We are very happy to see the impressive amount of contributions to the OPAM repository, and this change, together with the licensing of all metadata under CC0 (almost pubic domain), guarantees that these efforts belong to the community.

If you are upgrading from 1.0

The internal state will need to be upgraded at the first run of OPAM 1.1.0. THIS PROCESS CANNOT BE REVERTED. We have tried hard to make it fault- resistant, but failures might happen. In case you have precious data in your ~/.opam folder, it is advised to backup that folder before you upgrade to 1.1.0.


Using the binary installer:

  • download and run https://github.com/ocaml/opam/blob/master/shell/opam_installer.sh

You can also get the new version either from Anil's unstable PPA:

add-apt-repository ppa:avsm/ppa-testing
apt-get update
sudo apt-get install opam

or build it from sources at :

  • https://github.com/OCamlPro/opam/releases/tag/1.1.0-RC


Too many to list here, see https://raw.github.com/OCamlPro/opam/1.1.0-RC/CHANGES

For packagers, some new fields have appeared in the OPAM description format:

  • depexts provides facilities for dealing with system (non ocaml) dependencies
  • messages, post-messages can be used to notify the user or help her troubleshoot at package installation.
  • available supersedes ocaml-version and os constraints, and can contain more expressive formulas

Au sujet d'OCamlPro :

OCamlPro développe des applications à haute valeur ajoutée depuis plus de 10 ans, en utilisant les langages les plus avancés, tels que OCaml et Rust, visant aussi bien rapidité de développement que robustesse, et en ciblant les domaines les plus exigeants (méthodes formelles, cybersécurité, systèmes distribués/blockchain, conception de DSLs). Fort de plus de 20 ingénieurs R&D, avec une expertise unique sur les langages de programmation, aussi bien théorique (plus de 80% de nos ingénieurs ont une thèse en informatique) que pratique (participation active au développement de plusieurs compilateurs open-source, prototypage de la blockchain Tezos, etc.), diversifiée (OCaml, Rust, Cobol, Python, Scilab, C/C++, etc.) et appliquée à de multiples domaines. Nous dispensons également des [formations sur mesure certifiées Qualiopi sur OCaml, Rust, et les méthodes formelles] (https://training.ocamlpro.com/) Pour nous contacter : contact@ocamlpro.com.