Thomas Fuchs, the main man behind the popular Script.aculo.us Effects library, has just announced a new maintenance release of Script.aculo.us. You can read about it here:
http://mir.aculo.us/2006/11/8/script-aculo-us-1-6-5.
Now if the Prototype camp could produce updates on a regular basis like Thomas and the Script.aculo.us team do, they might be in better shape overall. Shoot, the main Prototype site only shows its version as being 1.40 while everyone else is using 1.5.0_rc1 to build their sites. C'mon guys.