ofShader addon?

Hiya, I want to use GLSL shaders with my app and came across this thread:

I downloaded and used the ofShader class there - and firstly what a brilliant wrapper! using shaders has never been so easy! THank you!

Secondly, is that the current latest state of the class (26/06/07)? I’ve seen people refer to an ofShader addon, are they referring to that zip in that thread? or can it be found elsewhere?