The official 3.1 patch notes for the live realms states that the equipment manager is now active. The patch preview website that went live says it isn't, and a blue post from a couple weeks ago was the first announcement that it won't be going live in patch 3.1 yet.
So then why is the equipment manager in the patch notes?
The patch notes are wrong in this instance.
Zarhym/Floating-Red-Skull confirmed as much last night, and it's important to note that there might be a few other posts like this one throughout the day. In some cases patch notes can be incorrect in the finer points of the patch. This is one of those cases.
Patch 3.1 is live and it takes us into Ulduar, delivers us dual specs, and brings significant changes to all the classes! We've got you covered from top to bottom with our Guide to Patch 3.1 and the official patch notes!