The thing is that the Item Browser is split into stable and experimental.
The stable is currently locked to 0.B, and the experimental is taking the latest experimental build.
The latest stable is 0.C, and a lot have changed or been added since 0.B. The browser really need to be updated to match that.
There are a lot of people who won’t even touch an experimental build so long as there is a relatively current stable available, as well as people who won’t touch an experimental build ever, even if it’s the only thing available. To these people, the experimental database could be worse then the outdated one, if they even look at it at all. Most would simply assume that the stable branch is the most current stable, because that’s what can be expected.
And why not? The experimental is updated daily (nightly?). Why wouldn’t the stable be updated once a stable is released? It makes sense.