The fimex-program is considered stable and the releases are those used in production at met.no. API- and configuration changes are still likely between two releases.
Development versions can be found in the git repository: https://github.com/metno/fimex. Development usually occurs in the master branch, so it might become instable any time. Stable versions have tags like
Since fimex 0.63, Ubuntu packages are available on launchpad from the MET Norway Fimex PPA. At present, packages are made available for Ubuntu versions:
Previous versions are also available on launchpad, from another PPA: