The update was approved and released on Thursday. If you are on Ravelry, you may see a new sockCalc banner add announcing the new version.
I will now put my virtual feet up (they are cozily dressed in handknit socks) and rest a bit over the holidays.
Improvements I've currently got on my list to work on are an option for metric measurements, and an option for different leg lengths. Comment here to vote for which should be next.