On Sat, Jan 13, 2024 at 12:28:44AM +0900, Akira Yokosawa wrote: > Official python 3.10 support was new to Sphinx 4.3. > So, I guess reasonable version for recommending is Sphinx>=4.3. > > But at the same time, The latest Sphinx 7.2.6 works only with > python>=3.9. If your base python3 is 3.8 (e.g. ubuntu 20.04), > you can't have the latest one. I don't know that I care about Ubuntu 20.04; that's almost 4 years old and probably isn't being used by anyone who's building kernel documentation. Oracle Linux 9 (2022) ships Python 3.9.14. It also appears to ship python 3.11.2 as an optional install. It doesn't seem to ship sphinx at all. At least not that I can find from a quick rummage in the repositories. The recommendation I'm finding is to use pip to install sphinx if you need it.