Jujutsu’s changelog (https://jj-vcs.github.io/jj/latest/changelog/) goes all the way back to 2022 and shows there was a release as recently as two weeks ago. I don’t see why the maintainers would stop at this point.
> I (Martin von Zweigbergk, martinvonz@google.com) started Jujutsu as a hobby project in late 2019, and it has evolved into my full-time project at Google, with several other Googlers (now) assisting development in various capacities.
Also, from Jujutsu’s README (https://github.com/jj-vcs/jj#mandatory-google-disclaimer):
> I (Martin von Zweigbergk, martinvonz@google.com) started Jujutsu as a hobby project in late 2019, and it has evolved into my full-time project at Google, with several other Googlers (now) assisting development in various capacities.