Please see the following link to find out which version you have: https://support.apple.com/en-us/HT200008 (the link will take you away from this site so be sure to click your back button to return).
Please see the following link to find out which version you have: https://support.apple.com/en-us/HT200008 (the link will take you away from this site so be sure to click your back button to return).