Dave, what are the more major features in your opinion of 1.96 as opposed to 1.95?
It's too soon to give you a proper answer. I've only spent a few days with v18.104.22.168 and that was mostly at the code level. I like the changes I see there, a cleaner and better organized class structure, patterns implemented in prior releases are applied throughout more of the code base, and several methods I noticed have fewer lines of code than before, which to me says very good things. You have the confidence that the v22.214.171.124 code base is more mature than ever, which of course reflects the maturing skills of tha_watcha, bbobb and others on the YAF Core Team.
As for the new features, you've probably seen the v126.96.36.199 features list on Jaben's announcement
(spoiler button.) From that list and my initial experience with v188.8.131.52, it's clear that the YAF Team dedicated themselves to addressing every single detail.
I should have v184.108.40.206 online sometime in the next few days at Sueetie.com.
You can be sure I'll be blogging the hell out of YAF's new features and how we're leveraging them over the coming weeks and months.