As many of you have no doubt noticed by now, we are running vBulletin 3.8.4 here on vbcom. In fact, we've been running the code here since around 11AM Pacific yesterday. But, this version is not available to the general public yet. Here's a brief account for what happened, and why it is not ready yet.
Originally, we planned to have the release out two weeks ago. However, because everyone with sufficient access was busy with working on 4.0 alpha, we did not had the resource to release