Jena
The Jena download area on sourceforge.net contains previous versions.
Jena CVS
Browse the Jena CVS area: Jena CVS on SourceForge
Details on setting up CVS: Jena CVS Repository
Maven
The Jena Maven repository is located at
http://jena.hpl.hp.com/repo. This is syncrhonized with the central Maven
repository. The group id is "com.hp.hpl.jena". Artifacts include
jena, the IRI library, arq and sdb,
together with a number of systems that Jena depends on in source form.
There is also development repository at http://jena.hpl.hp.com/repo-dev/ which is not sync'ed with the Maven central respoitory.
ARQ
ARQ is packaged with Jena. Updated versions are available via the ARQ download page.
SDB
SDB is distributed from the Jena download area on SourceForge.
Joseki
Joseki is a RDF publishing server, providing access to RDF models by URL and query.
Eyeball
Eyeball is an "RDF lint" for checking RDF/OWL models for common issues such as illegal URIs, missing property values, and incorrect prefix mappings.