I just updated to 9.4, and the behavior of the Windows 7 taskbar seems to have changed. It used to cover the entire length of the monitor, but now it is always restricted by the boundaries of whatever split occupies the center of whichever edge of the screen that I put it on. It still prevents windows from maximizing into the empty space that it used to cover in other splits, though. Is there any setting to change this behavior?

Yes, that gives me the desired behavior, thank you.