The version you mentioned, v1.4.2, suggests a specific iteration of the software. Generally, updates to software like Cabri Geometry II Plus might include bug fixes, improvements to user interface and experience, and possibly new features to support more complex geometric constructions or to integrate better with educational curricula.
As you drag points or objects, the entire construction updates in real-time, allowing for the exploration of conjectures and invariant properties. cabri geometry ii plus v1 4 2 cracked nope free