Hi all! Should I upgrade to OS X Yosemite to fly X-Plane or no?
One question more... what means exactly this? I don't understand it...
"After I upgrade to iCloud Drive, can I downgrade and go back to using Documents in the Cloud?
No, after you upgrade to iCloud Drive, you can't go back to using Documents in the Cloud. You can turn off iCloud Drive in iOS 8 by going to Settings > iCloud > iCloud Drive. You can turn off iCloud Drive on your Mac by going to Apple menu > System Preferences > iCloud and deselecting iCloud Drive. If you turn off iCloud Drive, your documents and data will no longer be kept up to date across all of your devices."
Thank you