Hello, in contrast to its competitors (ancestors…?) gzip and bzip2, xz is already internationalized. But there's no convenient way for translators to submit their files. Even the update of existing po files after appropriate source code changes is up to translators. Moreover, xz ist currently translated into six languages only, which is poor for such a widely used tool. This is because potential translators are not aware of the fact that xz is internationalized.
It would be nice if xz would be integrated into a global translation platform. The best choice would be the GNU Translation Project  because most of the basic command line tools (from coreutils, diffutils, util-linux, wget etc.) are already maintained there. Please read the instructions for maintainers  to see what you have to do: Once you are planning a new release, create a pre-release tarball two weeks before. Update the translation template (*.pot) and send it to the TP coordinator. He will merge this new template with the existing po files and send these to the teams (even to that teams which still haven't submitted a translation for xz). Two weeks later, you pull the updated po files back from TP and make your release. That's all, and for more convenience, it can be simply scripted.  http://translationproject.org/html/welcome.html  http://translationproject.org/html/maintainers.html Best Regards, Mario