No they do not.  The sales of the manuals for the later Developer series were out weighed by the the cost and time to produce them.  It just didn't make it justify doing so.

handbook is diffirent with videos, i always made the note and screenshot when i watch the videos, but i found the handbook is still useful, in fact i didn't purcharse the handbook before i purchard all lessons books, but i buy them again, it's useful too. suggest Mr. Rost will do the handbook again

I appreciate, and I'm sure, that Richard appreciates it as well, that you found them useful.  Personally though, I find it even more useful that he spends his time on making more videos!

I'm sure it was just a business decision.

yeah, hahah. after learnt lots of basic videos like Developer, i found that i can read the search seminar about 3-4 hours instead of watched the video more than 12hours. haha. save my time but not miss the knowlages.

There are now transcriptions as a comment on some videos if that's helpful.

Yeah, it just became a business decision to stop making the handbooks after Developer 13 because as you go up in levels, fewer and fewer people buy them. The Advanced and Developer students generally don't want the handbooks, but most of the Beginner and Expert students do. It's a very lengthy and expensive process to create handbooks if not a lot of people buy them. Fortunately, AI technology is getting much better and can already produce excellently edited text from the transcripts of the audio. I'm just waiting for it to get good enough to insert the screenshots automatically, and then you'll start to see more handbooks coming out. It's close, but it's not quite there yet.