Dear all
Having the translation files as part of the package is a bit challenging (po files being overwritten in updates, package versioning, package size).
On the other side, is good to update the translation strings of the language(s) we want, independently from the package source code.
I propose having a common global directory to store the Tryton module translations (eg, $HOME/.trytond/locale/<package_name>) that can be overwritten with an environmental variable. That way we can work on the translation in parallel from the localization repository or even offline.
PS: I agree with @ced proposal Remove translations from releases .
Let me know your thoughts and have a great day!
All the best,
Luis