My WiFi was left on so my Kobo Aura has updated to 4.3.8945 on its own. A manual sync just now completed normally and was noticeably faster. My reading stats are completely out of whack. Thankfully I'm also still using the old home screen. No patches or modifications installed just yet. I don't use collections so I wouldn't know if anything changed with them.
http://imgur.com/eOfcRDU - my current reading stats.