There's now a new version on the Market. It's basically the one from the 23rd with a few more bug fixes and a slightly modified Profiles tab. The version number is 1.2011.12.26.1212.
I updated it on the market at around 12:30pm UK time. As of 3:20pm UK time, my Android Market still isn't showing me an update, nor is the Market website showing me the updated app version and description. No matter how many times I press F5 and clear my cache it's still saying 1.2011.10.04.0750. Oh well.
That being said, some of you have installed the update and emailed me, so somewhere in Android land it has updated correctly.