The window snapping has been given a behind-the-scenes facelift in Beta 6, so I was wondering if everyone can confirm that it is still working as expected. Thanks!

Excellent - thanks! The snapping code itself (the part that figures out where to snap it) is unchanged. I changed the part that notifies DisplayFusion that a window needs to be snapped. Previously, I relied on the mouse hooks, but with Beta 6 it uses the application hooks (like the TitleBar Buttons do) and it should result in more reliable snapping.