I'm a huge fan of trying a lot of things. Throw ideas to the ecosystem and let popularity decide the ones that should survive, and the ones that don't.

CDB, Community Data Browse, ended up in the second category. While the idea is still very very valid (building up a central query repository), the execution wasn't... quite there.

We converted it to 5.x, but a recent upgrade in Saiku made CDB stopped working, and it's just not worthwhile for us to maintain it. We're EOL'ing it, and removed it from the marketplace. Old builds still available on the homepage.

If anyone wants to pick up the project... code's available on github, just let me know!