The Foreign Service Institute (FSI) courses (found here, here or here) are free, thorough, and an amazing resource for language learners. But they are quite old - many of the courses are well over 50 years old, since they were mostly created in the 1960s. That's not to say they aren't useful anymore. They are definitely still useful, but languages change a little with each generation and updated materials are nice to have.
Do you know if this tremendous resource has ever been updated, even if just for certain languages?