We are pleased to announce the release of a second release candidate for OPAM 2.0.0.
This new version brings us very close to a final 2.0.0 release, and in addition to many fixes, features big performance enhancements over the RC1.
Among the new features, we have squeezed in full sandboxing of package commands for both Linux and Mac OS, to protect our users from any misbehaving scripts.
NOTE: if upgrading manually from 2.0.0~rc, you need to run
opam init --reinit -nito enable sandboxing.
The new release candidate also offers the possibility to setup a hook in your shell, so that you won’t need to run
eval $(opam env) anymore. This is specially useful in combination with local switches, because with it enabled, you are guaranteed that running
make from a project directory containing a local switch will use it.
The documentation has also been updated, and a preview of the opam 2 webpages can be browsed at http://opam.ocaml.org/2.0-preview/ (please report issues here). This provides the list of packages available for opam 2 (the
2.0 branch of opam-repository), including the compiler packages.
- 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 -nito 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 -nito enable sandboxing if you had version 2.0.0~rc manually installed)
- From source, manually: see the instructions in the README.
Thanks a lot for testing out this new RC and reporting any issues you may find.