Feedback on this post is welcomed on Discuss!

We are pleased to announce the release of opam 2.2.1.

We've fixed a couple of regressions and would like to encourage users of opam 2.2 to upgrade.

Changes

The three main changes are:

• Fix a regression in opam install --deps-only where the direct dependencies were not set as root packages (spotted in the wild by @rjbou and also reported on Discuss)
• Fix a regression when fetching git packages where the resulting git repository could lead to unexpected outputs of git commands, by disabling shallow clone by default except when fetching an opam repositories (#6145)
• Mitigate curl/curl#13845 by falling back from --write-out to --fail if exit code 43 is returned by curl. In particular, this fixes opam init when run from cmd/PowerShell on Windows 11 23H2 (#6120)

A couple more improvements and additions to the testsuite were made. You can view the full list of changes in the release note.

Try it!

The upgrade instructions are unchanged:

1. Either from binaries: run

For Unix systems

bash -c "sh <(curl -fsSL https://opam.ocaml.org/install.sh) --version 2.2.1"

or from PowerShell for Windows systems

Invoke-Expression "& { $(Invoke-RestMethod https://opam.ocaml.org/install.ps1) }"

(or via winget upgrade OCaml.opam) or download manually from the Github "Releases" page to your PATH.

1. Or from source, manually: see the instructions in the README.

You should then run:

opam init --reinit -ni

Please report any issues to the bug-tracker.

Happy hacking!