Yes, of course Ive seen the addendum. Its right there with the other documents. I just find it odd that there is a German User Guide Version 1.3 and the English version is still 1.2. Moreover, the PDF documents have odd version naming Ive seen two documents with names containing 2.1 and 2.2 with identical contents of User Guides 1.2.
Just makes me wonder whether some of the support site PDF files or links were messed-up and never corrected.
BTW, I really dislike the modern support habit of _removing_ older documents from the site and indeed having no archives.
Complaints aside, I am finding the Oberheim guides to be well written. Much more readable and more interesting than many manufacturers who use repetitive and obvious, boiler-plate text.