+ Hooks now allow you to render a layer/block. This should allow (me? and plugins) to add hooks within existing templates and make it easier to extend them. The upcoming Flitter plugin rewrite showcases how to do this. Just you wait for a few minutes and check out the plugins repo. (Class-Skeleton.php, Subs.php)

+ Added a first_post_done hook to first posts on the page. This currently includes forum posts on pages 2 and beyond, which sucks, and I'm considering only triggering it for the actual first post in a topic. (Display.template.php)