Something that has been requested for a while is the ability to change your vote on a Solution or Review, especially if someone has since modifed it to improve it.
I've made it so you can change your vote at any time.
I've also given a new checkbox to notify any negative voters when you change your solution.
Note: You can now only create a single solution per achievement.
And finally, I've archived any read or deleted Private Messages that are older than 2 months - I had 25 pages of them in my inbox and it was driving me mad
You can still access them in the Messages->Archive menu item.