Like a few months ago in March 2012, Unity gave away free Unity Pro Licenses. I tried downloading the new Unity 4. and my serials won’t work. Why is it? Please. Also where can we download previous versions of Unity? Thank you
in march 2012 unity gave free serials for unity 3.x ios basic and unity 3.x android basic, not unity pro… and because those were for 3.x , those serials dont work with 4.x , you would need to buy the upgrade