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Definitely have noticed a significant improvement in the smoothness and reactivity of safari, which to be honest is the program I'm in the most on my rMB. Feels like the GUI is generally a bit zippier overall throughout the computer as a whole. As for battery life, I think I've noticed it being running down slightly more quickly than before all though this is pretty unscientific. It just feels that when I glance at the b developed from using it for a couple of months so far with yosemite. Pretty sure this isn't an illusion, but it's not a dramatic drop and like others have said, I'm sure that if power use has gone up, they will be looking into doing what can be done about that in subsequent point updates. Could be that it's an unavoidable thing - if this new metal framework or whatever it is that allows for the graphics to run a bit faster and smoother necessarily uses a little more juice, then that could be that. In any case, I think it was worthwhile because it's obviously nicer to have a machine feeling fresher and snappier than it did before with a new OS upgrade rather than the other way around.
 
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I went through the hell of Lion and Yosemite. Maybe El Capitan performing so well has made me biased.

Well maybe the inverse for me; Mavericks was a disaster for me and so far Yosemite has been perfect across all our Mac`s used in business and or recreationally. I what concerns me the most is issues with; Mail, MS Office and many have reported a significant drop in run time on battery.

I just dug out an old 11" MBA that I use for testing App`s and the odd software development, it`s installing 10.11.0 now so I will clearly see if there is any depreciation running on battery. Likely I will move to 10.11, however only once it`s at the .2/.3 release, assuming all is fixed. MS Office I am not too concerned with as much of the issue appears to be related to Outlook which I don't use.

This what rather peeves me with Apple as they have a very limited hardware base, yet year on year your rolling the dice with the OS upgrade. A good friend of mine has for many years now always stayed a full cycle behind and tends to buy the hardware towards the end of it`s development cycle. I am starting to think that this is "wisdom" he still gets a new OS update, it`s fully sorted, same applies to his Mac`s.

Initial impression on the 11" MBA, have lost more than 1-1/2 hours on the battery, equally it`s a little too soon to make a call. Wine is "Borked" but need to look into it, don't have too much on this system barring X-Code etc. so is not good comparison. For the battery would really need to use the Air to see exactly how long it runs on battery, right now the percentage indicator is jumping around to much, to be a reliable guide.

Q-6
 
Fixed Wine, now un-Borked, still waiting to see on the battery life, performance is a little better (2011 base 11" MBA) nothing shocking. Split screen view is nice, however I still prefer BetterSnap Tool thx to its`s customisation etc.

Just leaves Mail and MS Office, Mail best bet for those who have yet to upgrade is copy the V2 folder (User- Library -Mail) this is where the actual mail is stored, should there be an issue it will be less painful to deal with. Still pretty much of the same mind that if you have a 10.10.5 with no issues there is nothing immediately compelling to move to 10.11.0 for, A couple of point releases and Apple will catch the major bugs.

Q-6
 
Well maybe the inverse for me; Mavericks was a disaster for me and so far Yosemite has been perfect across all our Mac`s used in business and or recreationally. I what concerns me the most is issues with; Mail, MS Office and many have reported a significant drop in run time on battery.

I just dug out an old 11" MBA that I use for testing App`s and the odd software development, it`s installing 10.11.0 now so I will clearly see if there is any depreciation running on battery. Likely I will move to 10.11, however only once it`s at the .2/.3 release, assuming all is fixed. MS Office I am not too concerned with as much of the issue appears to be related to Outlook which I don't use.

This what rather peeves me with Apple as they have a very limited hardware base, yet year on year your rolling the dice with the OS upgrade. A good friend of mine has for many years now always stayed a full cycle behind and tends to buy the hardware towards the end of it`s development cycle. I am starting to think that this is "wisdom" he still gets a new OS update, it`s fully sorted, same applies to his Mac`s.

Initial impression on the 11" MBA, have lost more than 1-1/2 hours on the battery, equally it`s a little too soon to make a call. Wine is "Borked" but need to look into it, don't have too much on this system barring X-Code etc. so is not good comparison. For the battery would really need to use the Air to see exactly how long it runs on battery, right now the percentage indicator is jumping around to much, to be a reliable guide.

Q-6
See, I've conversely GAINED performance AND battery life by upgrading from Yosemite.
I know Spotlight took a few hours to index and then on top of that I did have a week where the battery was running like half an hour less but now the battery is much MUCH better.
 
The OS X release cycle is too short these days and similar to 10.10 it will be the .3 release before the OS is stable for many. Personally I expect more of Apple, pity others don't...Q-6

I NEVER upgrade OS X or iOS until at least the .1 release. More than happy to let the rest of the world do beta testing. ;)
 
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See, I've conversely GAINED performance AND battery life by upgrading from Yosemite.
I know Spotlight took a few hours to index and then on top of that I did have a week where the battery was running like half an hour less but now the battery is much MUCH better.

Need to see how the MBA progresses, equally it`s a very basic system, my primary & secondary are far more complex. What you are describing with the battery is just the software in the OS calibrating against your usage whitch is normal. What interests me is does 10.11 physically run longer, not just the indicator.

Performance is one thing, however stability is the most important factor if you rely on OS X for your living. These days I generally don't consider the update until .2/.3

btw loose the "spinner" you will never look back...

Q-6
 
Need to see how the MBA progresses, equally it`s a very basic system, my primary & secondary are far more complex. What you are describing with the battery is just the software in the OS calibrating against your usage whitch is normal. What interests me is does 10.11 physically run longer, not just the indicator.

Performance is one thing, however stability is the most important factor if you rely on OS X for your living. These days I generally don't consider the update until .2/.3

btw loose the "spinner" you will never look back...

Q-6
I'm not talking about the battery indicator. I was talking about how it PSYCHICALLY lasted half an hour less and how now it lasts PSYCHICALLY more during the day for ME.

Oh and I have a PCIE SSD, the one that comes standard in all rMBPs ;) I just have a whole lot of files and apps so I knew it was gonna take some time to index.

Once again, stability is fine for me as well and I've been running the PB since forever BUT my use case is significantly different to yours probably and in that case I do suggest you hold off since obviously just because its great for me, doesn't mean it will be for you.
 
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