Hello, I think the main reason why the Debian packages haven't been kept up to date is in part that the list of dependencies have become very large and complex. Some of the dependencies are installed from PIP or even cloned from git (the full list can be found at https://github.com/hplgit/doconce/blob/master/doc/src/manual/debpkg_doconce.txt).
Additionally, until recently, DocOnce was developed solely by its original creator, Hans Petter Langtangen (hereafter referred to as HPL), so improvements and fixes have just been released continuously to the master branch. I have thought about having a release branch and tagging releases, but I haven't gotten around to do it yet. I hope to be able to find the time to maintain DocOnce, but I'm afraid I won't be able to develop it at the same pace as HPL. Hopefully, there will be more contributors in the future. Kristian
