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macrumors 68000
Original poster
Oct 9, 2010
I set up a friend a few years ago with a 2012 MacBook Air with Mavericks. It's time to give it a bit of a refresh and clean out and I thought I'd check here to see if it's OK to install Sierra. I know it can take Sierra but I just want some reassurance that it's not going to bog down the Mac.



Staff member
Feb 21, 2012
New Jersey Pine Barrens
You may have missed my point… I was referencing the story in the link above that (apparently) Apple removed the option to display battery run time remaining in the menu bar. This was their way to "fix" the complaints of short run time on the new MBP. :p

I am still running 10.8.5 on my 2013 MBA for compatibility with a lot of expensive legacy software. Has always worked fine for me. Am planning to upgrade to Sierra in the next month or two however and see just how many of my old programs break. I recently setup a 2012 quad i7 Mini Server on 10.8.5 that also runs my old software, so if it breaks under Sierra on the MBA it won't be too much of a problem.


macrumors 6502
Apr 2, 2012
Somewhere In Time
I've installed every new OS within a week or two of release on a 2011 MBA since it was new. I've had no difficulties with any of them, up to and including 10.12.2. The battery run-time removal was because it was inaccurate and therefore pretty meaningless.

If battery status is really important to you I'd suggest getting which displays time remaining more accurately, especially toward the end of the charge.
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