Pavel and I finished up the last of the Gremlin 0.5 issues and decided to release so we can get onto working on what we want to do for Gremlin 0.6 :) as well as some new products. With that, we released stable versions of the TinkerPop stack which Gremlin depends on -- in other words, Pipes and Blueprints.
Gremlin 0.5 (Gremlivich)
http://github.com/tinkerpop/gremlin/downloads
http://github.com/tinkerpop/gremlin/wiki/Release-Notes
Pipes 0.1 (Leaky)
http://github.com/tinkerpop/pipes/downloads
http://github.com/tinkerpop/pipes/wiki/Release-Notes
http://tinkerpop.com/maven2/com/tinkerpop/pipes/0.1/api/
Blueprints 0.2 (Kermit)
http://github.com/tinkerpop/blueprints/downloads
http://github.com/tinkerpop/blueprints/wiki/Release-Notes
http://tinkerpop.com/maven2/com/tinkerpop/blueprints/0.2/api/
Be sure to update your <dependency>ies!
Enjoy,
Marko -- and the rest of the TinkerPop team and contributors.