I've upgraded our blogging software to MovableType 3.12. This affects this blog plus our far move active and popular Summerhill Kitten Farm
I also also locked comments on this blog to require TypeKey registration. There are pros and cons of third party registration, but it's that or looking in other third-party blacklists to block comment SPAM.
This lets me drop the password prompt anyone sees when they try even look at a comment.