Maybe it's a problem of this early revision, maybe it's because the new Developer Tools are giving me dizziness (and the Network panel crashes), but I can't find a way to set the compatibility mode in Internet Explorer 11 beta for Windows 7.
And I don't mean the ability to emulate just IE7, but also all the versions between the current and IE7, like IE8, IE9 and IE10 allowed to do.
Has anyone else had more luck?
UPDATE 2013-11-30: so there's this 'Emulation' part to do the trick. The problem is that's not a perfect emulation - even worse than IE9-10, as Trident isn't downgraded while emulating. So, for example, conditional comments don't work at all when emulating IE5-9.