Lynn M. Thomas is the new editor-in-chief of Apex Magazine. In addition, Apex is going back to an email system, moving away from the HeyPublisher form. They will be finishing up the submissions already sent in through 12/31/2011, so for those who have already submitted, things will proceed as normal, but new submissions should be sent to: [email protected]. The maximum word-limit is dropping to 5000, and they are no longer accepting unsolicited poetry.
The complete guidelines are available here: Apex Magazine Guidelines