software update to connect iphone to mac
I connected my iphone to my imac and got the message "A software update is required to connect to...". I am OS X 10.11.5 and before I install this update, will it update my operating system or just itunes?
If just itunes, will I also be able to synch a device with an older ios (my ipad) in addition to the newer ios on my iphone?
iMac 27″, OS X 10.11