I became aware a few months ago that Zemax had decided to introduce subscription licencing (i.e. software leasing rather than software purchase), which changes radically (and IMHO not positively) the nature of the relationship between Zemax and its customers.
As my single user private perpetual licence support is about to expire, I have asked for a quotation for support renewal. Not only that the support renewal price went up by 20% over last year (which pushes me well over the limit of what I can afford to fork out for licence support every year in exchange for, judging by the experience of past updates, little more than cosmetic changes and minor bug fixes), but I was also told that I am strongly encouraged to transition to an even more expensive subscription licence, which apparently will include access to more technical innovation in the OpticStudio updates than offered by the perpetual licence.
I have a few related questions:
Looking forward to your reply.