2.1.1

This is the release of opam 2.1.1.

Binaries and full archive are signed by by opam dev team (fingerprint 92C5 26AE 50DF 3947 0EB2 911B ED4C F1CA 67CB AA92).

Changelog:

Bug fixes

Switch

• Put back support for switch creation with packages argument and --packages option with cli 2.0, and a specific error message for cli 2.1 [#4853 @rjbou - fix #4843]
• Fix set-invariant: default repos were loaded instead of switch repos [#4866 @rjbou]

External dependencies

• Homebrew: Add support for casks and full-names [#4801 @kit-ty-kate]
• Archlinux: handle virtual package detection [#4833 @rjbou - partial fix #4759]
• Disable the detection of available packages on RHEL-based distributions. This fixes an issue on RHEL-based distributions where yum list used to detect available and installed packages would wait for user input without showing any output and/or fail in some cases [#4791 @kit-ty-kate - fixes #4790]

Sandbox

• Run the sandbox check in the temporary directory [#4787 @dra27 - fix #4783]

System

• Fix reverting environment additions to PATH-like variables when several dirs added at once [#4861 @dra27]
• Ensure setenv can use package variables defined during the build [#4841 @dra27]
• OpamSystem: avoid calling Unix.environment at top level [#4789 @hannesm] [#4802 @kit-ty-kate - fix #4801]
• Handle empty environment variable updates - missed cherry-pick from 2.0 [#4840 @dra27]

opam build

• Fix the cold target in presence of an older OCaml compiler version on macOS
• Fix vendored build on mingw-w64 with g++ 11.2 [#4835 @dra27]
• Fix dose3 download url since gforge is gone [#4870 @avsm]

Misc

• Fix typo in error message for opam var [#4786 @kit-ty-kate - fix #4785]

Many thanks to @AltGr and @rjbou (OCamlPro), @dra27 and @kit-ty-kate (OCaml Labs), @hannesm, @avsm and everyone who's helped with issue reports, comments and feedback.