For very large libraries, i Photo '11 may appear to be inactive for several minutes before the progress bar is displayed — do not force quit the application during this period.&New Line;&New Line; If you have force quit i Photo '11 during a library upgrade, you should not attempt to open i Photo '11 or upgrade the library again without first installing the i Photo 9.0.1 Update.Important: Attempting an update after a force quit may cause data loss.&New Line;&New Line; Before attempting to upgrade again, first confirm that you have installed the i Photo 9.0.1 software update.In extremely rare cases, if you do not follow the recommendations below during the upgrade process, you may experience data loss.This article outlines the various events that may occur during the library upgrade process and offers advice on how to avoid data loss.
And any changes or edits you make in Photos will not be reflected in i Photo or Aperture. Photos and videos from your System Photo Library will begin to upload to i Cloud in their full resolution and original format.
Apple used a somewhat convoluted naming scheme for i Photo and the i Life suites, never quite getting the version numbers in sync.
That is why you have an i Photo '11 name that is actually i Photo version 9.x There are two things you should be sure to do; before you install i Photo '11 make sure you have a backup, and one you install it i Photo '11, but before you launch it for the first time make sure and check that it is the most current version.
If you’d like to merge two different libraries, well, at the moment, there is no way to directly perform a merging of an i Photo library with a Photos library without manually intervening and importing photos on your own.
You can do that through the File Import menu item, or by dragging and dropping images from one library into another using the file system.