concise difference between LOSs in 07 and 08?

hi. can anyone tell me concise difference between 07 LOS and 08 LOS? my friend gave me a set of schweser 07 video course, and i want to use it as a guidance for my progress, but i need the concise difference so that i don’t waste my time on non-exam LOS.

not concise, but it’s a start…

thanks, really helps.