Q: what is the best operating system to upgrade to for 10.6.8

Hi,

See if your Mac can run v10.11 El Capitan >  Upgrade to OS X El Capitan - Apple Support

El Capitan is the latest OS X available for the Mac.

iPhone 6S System Requirements:

Syncing with iTunes on a Mac

• Mac: OS X v10.8.5 or later

• iTunes 12.3 or later (free download from www.itunes.com/download)

http://www.apple.com/iphone-6s/specs/

Upgrading to El Capitan

 

You can upgrade to El Capitan from Lion or directly from Snow Leopard. El Capitan can be downloaded from the Mac App Store for FREE.

 

To upgrade to El Capitan you must have Snow Leopard 10.6.8 or Lion installed. Download El Capitan from the App Store. Sign in using your Apple ID. El Capitan is free. The file is quite large, over 5 GBs, so allow some time to download. It would be preferable to use Ethernet because it is nearly four times faster than wireless.

 

      Macs that can be upgraded to OS X El Capitan

 

 

         1. iMac (Mid 2007 or newer) - Model Identifier 7,1 or later

         2. MacBook (Late 2008 Aluminum, or Early 2009 or newer) - Model Identifier 5,1 or later

         3. MacBook Pro (Mid/Late 2007 or newer) - Model Identifier 3,1 or later

         4. MacBook Air (Late 2008 or newer) - Model Identifier 2,1 or later

         5. Mac mini (Early 2009 or newer) - Model Identifier 3,1 or later

         6. Mac Pro (Early 2008 or newer) - Model Identifier 3,1 or later

         7. Xserve (Early 2009) - Model Identifier 3,1 or later

 

To find the model identifier open System Profiler in the Utilities folder. It's displayed in the panel on the right.

 

     Are my applications compatible?

 

         See App Compatibility Table - RoaringApps

 

This is the only OS to which you can upgrade other than Lion that is intended for models not able to run El Capitan.

Upgrading to Lion

 

If your computer does not meet the requirements to install El Capitan, it may still meet the requirements to install Lion.

 

You can purchase Lion at the Online Apple Store. The cost is $19.99 (as it was before) plus tax.  It's a download. You will get an email containing a redemption code that you then use at the Mac App Store to download Lion. Save a copy of that installer to your Downloads folder because the installer deletes itself at the end of the installation.

 

     Lion System Requirements

 

       1. Mac computer with an Intel Core 2 Duo, Core i3, Core i5, Core i7,

           or Xeon processor

       2. 2GB of memory

       3. OS X v10.6.6 or later (v10.6.8 recommended)

       4. 7GB of available space

       5. Some features require an Apple ID; terms apply.

[Permission to use part or all of the above has been granted by Kappy, exclusively, to theratter.]