Hi,
Thank you for your enquiry.
4.5 is not a major new iteration of Opus, but a refresh of the original Opus Presenter 04, Opus Pro 04 and Opus Pro XE 04, which includes all four Service Releases integrated into the main install. We feel that the Opus 04 codebase has now reached levels of unprecedented stability, reliability and performance, and this is a perfect opportunity to market the product to new users.
As an existing Opus Pro 04 user, you can 'upgrade' to version 4.5 for free by downloading and installing the latest Service Release from:
ftp://ftp.digitalworkshop.com/pub/opusu ... 04_SR4.exe
I hope this clears up any confusion.
Kind regards,