Gregorian Loc: Georgetown, Ky

Upgraded late 2013 MacBook Pro with no problems. I use PS CS6, Lightroom 5, ON1, Aviria, and NIK Plugins. No problems! If it's showing up in software upgrades, then it is compatable. It will just show software is up to date and will not show Sierra update if not!

OnDSnap Loc: NE New Jersey

I'm not a MAC user so I wouldn't have a clue...

Bazbo Loc: Lisboa, Portugal

I keep up with all of the Mac operating systems upgrade and have never had a problem. Sierra works fine with everything.

burkphoto Loc: High Point, NC

Most stable new release in years...

Just be ABSOLUTELY sure your software will run on Sierra *before* doing the upgrade. That includes scanner drivers, printer drivers, color calibration software...

Update to the latest software versions BEFORE upgrading the OS.

Dngallagher Loc: Wilmington De.

Understandable - :)

FWIW:

Apple retired both iPhoto and Aperture roughly 2 years back and replaced them with Photos, so when someone upgrades the OS they end up with Photos instead of iPhoto, even though iPhoto & Aperture would still work if re-installed, however, as the OS changes, Aperture and iPhoto may suddenly stop working with newer OS's.

Photos is a capable replacement for iPhotos, but I do not care for it myself, I opted to switch from Aperture to Lightroom and am perfectly happy with Lightroom & Photoshop on the $10.00 a month Adobe CC package - that keeps my Lightroom and Photoshop constantly updated/upgraded to the most current version.

Dngallagher Loc: Wilmington De.

fourlocks Loc: Londonderry, NH

I updated my iMac and had no problems running PS Elements. My computer seems to run a tiny bit slower but that could just be happening as time passes. I figure any security upgrades are worth having but I find Siri rather
"gimicky" and really don't use it. Took about half an hour to load... My only very general complaint about iMac, is that "Photos" sets up it's own database to store your photos and it's a little tricky to get it to cooperate with Photoshop. My wife likes the simplicity of Photos so I load my photos into it...and then again into a separate folder on the hard drive for my own use.

Fourlocks

jackpi Loc: Southwest Ohio

I have a late 2012 13" MacBook Pro Retina. I have updated to the latest releases of Sierra, Lightroom and Photoshop on this laptop and have had no problems. When downloading Sierra, I recommend using an ethernet connection (as opposed to WiFi), if possible, to significantly reduce the time necessary to download Sierra for installation.

Brucej67 Loc: Cary, NC

Only problem I ran into is Sierra will not support my Canon printers.

Martino Loc: Northwest Florida

I upgraded a mid 2011 iMac to Sierra. I did a clean install as I had only previously done 'normal' upgrades and felt that I had accumulated years of crud and old unused programs. No problems with the exception that the driver for my Canon scanner wouldn't work. Appears that Canon have not upgraded their driver - ever - and would rather sell me a new scanner. I found a third party driver on line which works better than the Canon.

Otherwise no problems at all. I always upgrade to make sure that everything is secure and working well.

My iMac is now at least as fast as when new and very stable.

Rathyatra Loc: Southport, United Kingdom

Thanks Dave - much obliged for the info.

DanCulleton

I upgraded my MacBook with no problem.
Is anything some functions of LR are improved.
My primary reasons for always upgrading is security.

dmagett Loc: Albuquerque NM/Sedona AZ

I know some of you will not like my remark.....my philosophy is if everything works well, why upgrade. I only upgrade if there is a specific need ( camera support, new software support, etc.)
I have an iMac 21.5 running Yosemite. I tried ElCapitan...had "beach balls" and freezes...went back to Yosemite. I then foolishly tried Sierra...my wifi now drops...back to Sierra.
I have learned (sometimes the hard way) that latest and greatest sometimes is not.

burkphoto Loc: High Point, NC

The primary reasons to upgrade include:

• Security, security, security!

• Compatibility with new and updated software applications

• Improved speed and features that make the system easier to use

• Better integration with the cloud and mobile devices

One reason NOT to upgrade is to maintain compatibility with obsolete software, or software that you cannot justify upgrading or replacing, but use occasionally.

Fortunately, most Macs can be booted from an external drive. I have a Mac Mini that boots well from each of three external FireWire 800 drives. I'm running 10.6.8 on one of them, 10.10.5 on another, and 10.12.0 on the third. I also have an iMac that boots well from an external USB 3.0 drive. I run 10.10.5 internally, and Sierra 10.12.0 externally.

Holding down the Option key at startup, right after you hear the chime, allows you to select the desired startup drive (or a recovery partition).

All this is to say, you might want to buy an external drive and use Carbon Copy Cloner to clone your internal drive to it. Then upgrade the external to Sierra. That way, if something fails, you still have your old system completely intact!

Another use of this startup from external drive routine is to use BootCamp to create a Windows startup drive... Macs are PCs at the core.

memcdm

Your upgrade possibilities depends upon the age and version of your machine. If your Mac is fairly Both run new you should experience few problems. Older programs may not run and you might need to install new drivers for your printers or other equipment. Some vendors may not have new drivers or versions of their programs to run in the new OS. I recently upgraded an older iMac to Yosemite which was as far as I could safely go according to my Mac service tech. I upgraded my Mac Air to Yosemite as well. Due to resource limitations, upgrading to the newest OS was not recommended. I did lose the use of a couple of very old programs but I knew that before the upgrades.