HT1338: OS X: Updating OS X and Mac App Store appsLearn about OS X: Updating OS X and Mac App Store apps
Currently Being ModeratedApr 8, 2013 8:08 PM (in response to sftaffy)
Do you need to upgrade? If not then don't.
Currently Being ModeratedApr 8, 2013 8:58 PM (in response to Kappy)
Well, I was curious about the pros and cons. What would it benefit me in terms of compatibility, performnce etc.?
Currently Being ModeratedApr 9, 2013 4:59 AM (in response to sftaffy)
10.7 or above will not run your PPC based programs, so that's a cost.
10.7 or above will need 4GB or more RAM, so that's a cost.
10.7 or above is slower than 10.6, so that's a cost in performance
If your machine is out of AppleCare, then if 10.7/10.8 hoses your machine somehow (like it did mine), then your screwed and have to buy a new one.
If the machine originally came with 10.4 or 10.5, then you certainly don't want to upgrade past 10.6.8 and slow it down, just run it until the wheels fall off.
I only advise Early 2011 machines and later to upgrade to 10.8, then only under AppleCare.
Apple is issuing security updates for 10.6, installed anti-virus, and it has about 30% version market share, so your safe for now.
Read for maximizing your Snow Leopards performance/repair etc
Currently Being ModeratedApr 9, 2013 6:38 AM (in response to sftaffy)
Mt. Lion does not run well on my dual core 2010 MBP (although there has been an improvement with the 10.8.3 update). Snow Leopard does.
Lion runs well on my 2011 quad core MBP.
My personal experience suggests that older MBPs should stay with Snow Leopard unless there is a compelling need for Lion features.