MochiKit 1.2 "the ocho" is now available [download, release announcement].
This release is the calm before the storm, it contains mostly bug fixes and minor functionality improvements -- but big things are coming soon. We have a signal/slot dispatch mechanism, a script.aculo.us port, a new testing system, non-browser compatibility (SpiderMonkey, KJS, SpiderMonkey, Rhino) and a [...]