I am always a litle bit slow updating my software. Due to a lot of bad exsperience whit beta versions.... made huge troubles for several of my computers ....

Well here is my question?
How is the 6.4 version working? Does it do what it is supposed to?
Working well on the computer?
Is it hard to change....to the new syntax?
And is it safe for me.....lol.... I am still a newbie....