We run everything from 2013 to 2020 here at my job... yeah, it get's to be a real grab bag sometimes. (Imagine me trying to support all of it)
I like 2020 more than 2018. I only saw marginal improvements worth my time with 2019. The real interesting part of 2019 was the user interface that for some people, inexplicably, started with essentially no ribbon to speak of and a real minimalist view. For other people it showed barely more than a visual upgrade. It was weird.
That being said... there seems to be some sort of iterative version issues with the latest versions of AutoCAD. There seems to be real changes in the latest software that doesn't play nice with older versions. (And no this isn't related to my current problem in another thread) What interesting is that the AECTOACAD cmd seems to retain that a file came from a newer version of ACAD. Even if it is saved down afterwards. This starts to be an issue for one seat we have that runs on 2015 (and earlier) as they can no longer work on those files.
It's kinda getting really interesting really quick. As my office is moving more and more to subscriptions, it likely won't be a big deal for long.
