aggdraw for PIL

[Adam Endicott]

Does anyone know anything about the aggdraw module for PIL? I think I
would like to use it because I need to do some drawing with
semi-transparent pen styles (I'm simulating using a highlighter). It
seems to be working great, but I think I'm running into a memory leak
that's noted in the documentation at
http://effbot.org/zone/pythondoc-aggdraw.htm#aggdraw.Draw-class

"Note: The Draw(im) form leaks memory in aggdraw 1.1b1 and earlier.
Don't use this form in long-running program that creates multiple
drawings. The memory leak has been fixed in release 1.1b2."

Sounds good, except I can't find 1.1b2 anywhere. Is it not released
yet? If so, does anyone know when it might be released?