Quote Originally Posted by dpoon
Noticed the following whilst reading the GLSL 1.50 specs with changes (GLSLangSpec.1.50.09.withchanges.pfd).

On page 45:
The fragment language has the following predeclared globally scoped default precision statements:
precision mediump int;
precision highp float;

The float precision predeclaration is new in GLSL 1.50 and is not marked in magenta.
Are you sure? I already used that in GLSL 1.30.