I am using dreamweaver cs5 and i am very use to it but my friend told me that cs6 contains some new features but i wasnt sure so guys what do suggest should i try cs6 ????
Like Murray says, do check out the what's new section http://helpx.adobe.com/dreamweaver/using/whats-new.html
If you do plan to move to CS6, you might want to check out the subscription option (Creative cloud) as well.