The most interesting fact about this release - from my personal point of view - is that I don’t care. I am usually very interested in updates to software I use often. nvim/vim is a program I use every day but I never had the feeling that it was lacking anything. I never ran into bugs. I don’t even have the feeling that I will grasp all of its features anyway not to mention the countless plugins. And I expect this upgrade to be stable and frictionless as in recent years. A tremendous achievement compared to all the other programs I have the pleasure to work with.
Somewhat off-topic, but that's how I feel about Sublime Text 3. It's fast. It's snappy. It handles MB-sized files with ease. I use it for text editing, small scripting (shell scripting, JS), repetitive text transformations that can be reduced to a macro, and things of that sort. Anything heavier goes into an IDE.