Cannot update to iTunes 12.5
I've been searching the discussion posts looking for an answer, but to no avail. I have been trying to update to the latest iTunes 12.5 so I can download the new IOS 10 to my iPhone 6. But...although in the app store it shows I have downloaded it several times, it is no where on my iMac...and I'm still running the 12.4 iTunes.
What am I missing? Thank you for your help!!!
OS X Yosemite (10.10.5)