For a small increment in release numbers, there were some pretty substantial changes. He redesigned the plugin scheme to make it easier to add featurettes without modifying the existing code, which is a good thing.
One of the things that I'm not sure about is the comment scheme. The 0.5 code didn't have any built-in comment/response mechanism, so I built one. The 0.7 code DOES have a built-in comment mechanism, but you don't see any of the comments on the main page. When you click the Comments() tag below, you get sent to a page that displays this one message, plus all the comments, plus a form for submitting your own comments.
I suppose there is sense to that for a site that gets a lot of traffic -- and therefore a lot of comments -- but for a low-volume site like mine, I think it's nicer to be able to read the comments inline.
Well, Wari has been very receptive to my suggestions in the past (in fact, some of my code is now part of one of the new plugins!). Maybe I'll bring it up.