HT205732: About the security content of iOS 9.2.1
Learn about About the security content of iOS 9.2.1
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Helpful answers
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Jan 21, 2016 11:09 AM in response to momoftwoapplesby sterling r,Hi there momooftwoapples,
Backing up before you update your iOS or Mac OS is always a good idea. In fact Apple recommends doing so in this article specifically which is about updating the iOS:
Update the iOS software on your iPhone, iPad, or iPod touch
Before you begin
Make a backup of your device using iCloud or iTunes.
Thank you for using Apple Support Communities.
