From which version did Qt begin to support opengl?

Question

It's said that (in Qt documentation) Qt 2.3 had opengl module. So, where is the beginning (version's number) of its support?

Answer 1

Looks like version 1.2:

1.2

OpenGL support, alpha channel on images.

In particular:

New Classes:

OpenGL/Mesa:

QGLWidget, QGLContext and QGLFormat. To use these classes you need to build the Qt/OpenGL library (qgl) in qt/opengl/src.