EntityFramework CTP5 DbContext T4 Template “virtual” keyword

The DbContext T4 template that comes with CTP5 does not have association fixup and not all properties are marked as virtual. Does it mean it does not support ChangeTracking when disconnected from context? First of all, does it support ChangeTracking even when tracked by Context (through dynamic proxies)? I see that the requirement for change tracking is that all properties should be marked as virtual.

Are we losing any functionality using DbContext generator compared to EF4 POCO generator?

Any response is greatly appreciated.