Mostly not. The CFi update was merely a barrel redesign. Only the 40/4 IF that was released in 2003 was a complete new design.
The 50/4 was redesigned slightly somewhen in the 80s and floating elements were added. The 38mm Biogon was recomputed around 2000 for the 905 series because they had to refrain from using lead, but this did not result in a real optical improvement. All other lenses (30mm, 60mm, 80mm, 100mm, 120mm, 150mm, 180mm, 250mm, Superachromats) are optically identical in their CF and CFi/CFE incarnation.