3.7.4
- FIX: UIInput no longer uses OnGUI unless you actually select the input field first (eliminates GC alloc).
- FIX: UIEventTrigger's OnDragStart/OnDragEnd shouldn't have had parameters.
- FIX: UIDragObject should now work properly with a constrained type UIRoot.
- FIX: Key/controller interaction wasn't quite correct with sliders/scroll bars.
- FIX: UIDragObject will now snap to pixels after the movement completes.
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