question for m33's

if i have 3.90 m33 and have all the abilities and stuff..........buh if i update to 3.90 m33-2 or 3.90 m33-3 is it the same as having 3.90 m33 buh jus better??
thanks in advance

3.90M33_3 just has more of the behind the scene bug fixes and stuff its not like you can tell the difference but your not going to lose anything by going from 3.90m33_2 to 3.90M33_3 in other words your not losing compatibility by upgrading.