Thank you Jim Scott for your thoughtful comments, I'm pleased to hear that you are enjoying your latest version. Upon further examination it seems that I paid for the upgrade from standard to elite at the beginning of August but didn't download it until the end of August when the camera finally arrived. So, unfortunately, well outside the free upgrade window.
I am afraid though that you may have misunderstood part of my motivation for complaint. Clearly as a professional photographer you will have no doubt been an elite user all along, able to put it down to the cost of doing business, but I was quite happy using the standard versions. Unlike Nikon, where there are real and actual physical differences between a lens covering an FX sensor and one covering a DX sensor, the difference between optics pro standard and optics pro elite is clearly an artificial one that amounts to, at best, a few lines of code and an arbitrary equipment list.
The elite edition does not offer any better results than the standard version it just provides "access" to the full complement of correction modules.
Dxo are free to choose their own pricing and feature model, and I am free to choose whether I remain a customer. In the past I have paid for each upgrade, but since upgrading an elite version costs more than upgrading a standard version I am reluctant to do continue to do so. I dislike the fact that purely based upon my choice of camera I have to pay more. I'm sure that dxo's shareholders are happy with this policy, but I'm not.
As I said earlier, 7.5 elite does what I need it to do and supports my current equipment, so I'm not upgrading this time.