Hi all,
This is a heads up that we've added a small new feature which hopefully will make things less painful for users across the projects: the ability to refresh the CAPTCHA you're presented without refreshing the entire page. It should work everywhere ConfirmEdit can throw the image CAPTCHA at someone: account creation, login, the edit form, etc. (It won't modify the simple math CAPTCHA, and so on.)
The original enhancement request for this ( https://bugzilla.wikimedia.org/show_bug.cgi?id=14230) goes back to 2008. A patch was submitted back in January by lalei: https://gerrit.wikimedia.org/r/#/c/44376/
If you want to test this out yourself before it's deployed, you can use http://toro.wmflabs.org/wiki/Main_Page