I am often surprised how many people still work with very old versions of memoQ, though I shouldn't be. Royalties continue to dribble in from books I wrote covering memoQ versions 6 and 2013 R2, and I still see questions from people using versions 4 and 5 as many of us anticipate the release of version 10 later in 2021. In several of the guides I wrote, I tried to give a summary of important changes in versions which are relevant to individual translators, but that's really a rather subjective, moving target and a somewhat thankless task. Well, that task is now a little easier, and you can handle it yourself.
The new "memoQ Features You Missed" web page makes version comparisons a lot easier. In some cases.
Unfortunately, the current version of this page only permits comparisons from the horrible 8.0 ("Adriatic") version or later to the present version. I can hack the URL to make it appear that a comparison is made from version 6.0, for example, but only features introduced in version 8.1 or later will be listed. It is, nonetheless, rather useful for most of us.
I hope that the company adds more information to cover older versions, because - as stated - there are still quite a few people out there on rather old versions, and a more complete summary of improvements might prove helpful in decisions to upgrade.
This page has also helped to settle a few arguments about the extent to which some recent versions are useful or not to individual translators doing particular types of assignments. The most recent version changes have been largely focused on server-based processes of little relevance to individuals in most cases, but for certain specialties there have been new features of good value introduced.
I expect that the value of this tool - if it is maintained by the software provider - will continue to increase with time. It will certainly save ME a lot of time answering questions about whether it is "worthwhile" to upgrade.