Slick2D ShaderProgram removed?

Hey. I wanted to play a little bit around with shaders in Slick2D and read about the Slick2D ShaderProgram.
How ever in the latest version of Slick2D ShaderProgram was removed. Anyone knows why or whether its still possible to work with Shaders in Slick2D?

Looks like it’s really time to switch to libGDX ;D

I did a bit of googling but only found these two which basically stress out what I’m saying in this post.