From your link :

"Camlistore (Content-Addressable Multi-Layer Indexed Storage) is under active development."

"The latest release is 0.9 ("Astrakhan"), released 2015-12-30."

If you check the actual changes, it does seem like it's under active development: https://camlistore.googlesource.com/camlistore

It is under active development they just haven't released a new version. The preferred way to deploy it via GCE or Scaleway will use the latest dockerized version. They update it from time to time.