Sesame 2 is a major update of the Sesame framework and is not backwards compatible with 1.x releases. Sesame 2 has reached the 2.0-final mark in December 2007, after two years of intensive development. With this release, Sesame 2 is now considered to be ready for production use.

• Download the latest Sesame 2.x release
• Get the source from Aduna's SVN server, or browse with WebSVN.
• Download maven artifacts from Aduna's maven repository.

With the 2.0-final release, Sesame 1.x has now been put into "maintenance mode". Development on this version is limited to fixing any major issues that might surface. Still, Sesame 1.x has been downloaded thousands of times and has been thoroughly tested by many developers. As such, it probably contains less bugs than Sesame 2.x, but misses some important features that have been added in the 2.x release (e.g. SPARQL querying, contexts).

• Download Sesame 1.x releases
• Get the source from SourceForge's CVS server

Elmo is a role based Java persistent bean pool. It provides a simple API to access ontology oriented data inside a Sesame repository.

• Download Elmo releases
• Get the source from Aduna's SVN server, or browse with WebSVN.
• Download maven artifacts from Aduna's maven repository.

Many developers contribute custom extensions (such as language wrappers, editor plugins, or additional reasoners or backend stores). Browse the list of contributions.