We did a bit of a soft release of GraphBinary in 3.4.0 calling it "experimental" which I think was a good idea since we had changes going in right up to 3.4.0 and only had Java support. I saw that Jorge created:
https://issues.apache.org/jira/browse/TINKERPOP-2229 which calls for Javascript support of GraphBinary and that made me think that it might be smart to try to aim to add GraphBinary support to all GLVs along the 3.4.x line of code with the idea that GraphBinary stays "experimental" there. Then in 3.5.0 we look to make that feature official and remove Gryo/GraphSON default configurations in favor of GraphBinary. That gives us our first "big" feature for 3.5.0.
