opam 2.0.1 is out!
We are pleased to announce the release of opam 2.0.1.
This new version contains mainly backported fixes, some platform-specific:
- Cold boot for MacOS/CentOS/Alpine
- Install checksum validation on MacOS
- Archive extraction for OpenBSD now defaults to using
gtar
- Fix compilation of mccs on MacOS and Nix platforms
- Do not use GNU-sed specific features in the release Makefile, to fix build on OpenBSD/FreeBSD
- Cleaning to enable reproducible builds
- Update configure scripts
And some opam specific:
- git: fix git fetch by sha1 for git < 2.14
- linting: add
test
variable warning and empty description error - upgrade: convert pinned but not installed opam files
- error reporting: more comprehensible error message for tar extraction, and upgrade of git-url compilers
- opam show: upgrade given local files
- list: as opam 2.0.0
list
doesn't return non-zero code if list is empty, add--silent
option for a silent output and returns 1 if list is empty
Installation instructions (unchanged):
- From binaries: run
sh <(curl -sL https://raw.githubusercontent.com/ocaml/opam/master/shell/install.sh)
or download manually from the Github "Releases" page to your PATH. In this case, don't forget to run opam init --reinit -ni
to enable sandboxing if you had version 2.0.0~rc manually installed.
- From source, using opam:
opam update; opam install opam-devel
(then copy the opam binary to your PATH as explained, and don't forget to run opam init --reinit -ni
to enable sandboxing if you had version 2.0.0~rc manually installed)
- From source, manually: see the instructions in the README.
We hope you enjoy this new major version, and remain open to bug reports and suggestions.
NOTE: this article is cross-posted on opam.ocaml.org and ocamlpro.com.
About OCamlPro:
OCamlPro is a R&D lab founded in 2011, with the mission to help industrial users benefit from experts with a state-of-the-art knowledge of programming languages theory and practice.
- We provide audit, support, custom developer tools and training for both the most modern languages, such as Rust, Wasm and OCaml, and for legacy languages, such as COBOL or even home-made domain-specific languages;
- We design, create and implement software with great added-value for our clients. High complexity is not a problem for our PhD-level experts. For example, we developed the prototype of the Tezos proof-of-stake blockchain.
- We have a long history of creating open-source projects, such as the Opam package manager, the LearnOCaml web platform, and contributing to other ones, such as the Flambda optimizing compiler, or the GnuCOBOL compiler.
- We are also experts of Formal Methods, developing tools such as our SMT Solver Alt-Ergo (check our Alt-Ergo Users' Club) and using them to prove safety or security properties of programs.
Please reach out, we'll be delighted to discuss your challenges: contact@ocamlpro.com or book a quick discussion.
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