I don't really have a question. More of comments that I wanted to make.
I am still on version 1.2.6. I installed 1.5 as a test and I am still not seeing much change or improvement at all. What I keep checking your updates for are these items:
Still slow adding new posts and navigating around.
There was a mention of how the newsfeed would be more manageable and faster but I didn't see any configuration anywhere where I could specify "delete old posts of ?? days" I guess I assumed I would have such a function but I don't.
The new Groups page format is still displaying all the group text rather than concatenating it. Each time I try your "updated" plugin for Groups, it still displays too much text on the main page which makes it unusable to me.
There was a mention of a spam prevention tool but I didn't see anywhere in the Admin control panel where this might be. There was a mention that it still needs work but I could not see it at all anywhere. There are huge security holes because of the lack of spam control. Many of us still get many spam users daily.
Themes are still poor in how customizable they are. I don't think I should have to go into the css for a million little changes. I should be able to change the color and size of the Title, the menu, the logo, etc. Seems like basic stuff but the interface to update themes are still very poor. You would have to be a css pro in order to customize any theme. Something as simple as inserting a logo should be easy, but, it isn't. It doesn't line up and text rolls over it with no way of removing the text or selecting "not to display Title" without having to go into the dark depths of the css file.
There may have been many updates done in the background core of this software, but for me, on the front end? I don't see much improvement at all.
Better luck next time around.