opam 2.3.0 release! | OCamlPro
As mentioned in our talk at the OCaml Workshop 2024, we decided to switch to a time-based release cycle (every 6 months), starting with opam 2.3.
As promised, we are very pleased to announce the release of opam 2.3.0, and encourage all users to upgrade. Please read on for installation and upgrade instructions.
When loading a repository, opam now ignores files in packages' files/ directories which aren't listed in the extra-files field of the opam file. This was done to simplify the opam specification where we hope the opam file to be the only thing that you have to look at when reading a package specification. It being optional to list all files in the extra-files: field went against that principle. This change also reduces the surface area for potential file corruption as all extra-files must have checksums.
This is a breaking change and means that if you are using the files/ directory without listing them in the extra-files: field, you need to make sure that all files in that directory are included in the extra-files field. The resulting opam file remains compatible with all previous opam 2.x releases.
