Because we (the maintainers) lost access to the infrastructure hosting clojure-doc.org, that site has gradually become very stale, with no updates since 2018 – even though we’ve been able to update the repository and accept pull requests from people.
After several discussions with Michael Klishin who originally set up the site, I have moved the content to GitHub - clojure-doc/clojure-doc.github.io: Clojure Guides | Getting Started With Clojure | Clojure Tutorials so that we can publish changes again!
https://clojure-doc.github.io is the new version of the site. Still needs some styling love but all the content has been converted from Jekyll/Markdown to Cryogen/Markdown (so the site is “powered by Clojure” now instead of Ruby).
Some of the material is a bit outdated but contributions are welcome via Discussions, Issues, and Pull Requests on the new repository.