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.
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Some of the material is a bit outdated but contributions are welcome via Discussions, Issues, and Pull Requests on the new repository.
Yes, this has always been a point of confusion but that’s where we are.
See Clojure Guides: About (clojure-doc.github.io) for the rationale and explanation about why it exists, what it is, and what it is not – where it calls out and links to both the Cheat Sheet and the ClojureDocs sites.
I’m hoping that Michael Klishin still has the keys to the DNS setup so we can get the clojure-doc.org domain pointed at the GitHub version.