If you have bookmarked anything in Lessons 1—4, you will need to update your bookmarks. I have made changes to the background workings of the grammar that required several filenames to change. Your bookmarks will no longer work unless you update them.
I revised lesson 16, “More Third Declension Nouns,” and the course lexicon several days ago, but have just now uploaded the changes. I’m working from Perú.
I have revised lesson 15 to reduce the size of the vocabulary list and clean up the discussion of third declension nouns. I have entered some revisions for lesson 16 as well, but will complete those over the next few days—long distance, from Peru.