one difference i see is on the highports there are different types as well. The one you pictured has just the ovaled opening with no cuts in the sides, The one you pictured is very very easy to fully block with a bent pan, The newer designs have slots on the edges of the oval that go upwards away from the pan making it impossible to completely block stopping oil supply, I have several at my house i can take a picture of.
Those ones suck, because even a slightly bent pan can lead to engine failure, and either way you should bend your pan back out if its even slightly dented whether you have a newer design or the old design.