From the update announcement on 1 March 2011.
Today we bring you a new round of releases. TinkerPop is pleased to announce:
Blueprints 0.5 (Scooby) – https://github.com/tinkerpop/blueprints/wiki/Release-Notes
Pipes 0.3.1 (Mario) – https://github.com/tinkerpop/pipes/wiki/Release-Notes
Gremlin 0.8 (Grem Stefani) – https://github.com/tinkerpop/gremlin/wiki/Release-Notes
Rexster 0.2 (Dog House) – https://github.com/tinkerpop/rexster/wiki/Release-Notes
The graph database work and associated materials is looking more and more attractive.
Look for something specific about applying them to topic maps in the near term.