Heroes 3 Of Might And Magic Download Free Full Version ~UPD~

I remember playing Heroes 3 years back, such a classic. Quick question though—when people mention the “full version,” are they talking about the original CD release or some kind of updated pack? I saw someone suggesting using mumble software while playing in multiplayer for voice chat—does that even work well with this game or is it just a random tip? I’m a bit lost here.