Readers of Kindle books, take note: Amazon has issued a critical update to its Kindle app on iOS, warning users to install the latest update before upgrading to iOS 7 or risk losing their Kindle libraries. The company pushed out the Kindle 3.9.2 update last night to the App Store. In the app's release notes, the company states:
This is a fix for a Kindle issue with the upcoming iOS 7 OS upgrade that may cause customers to have to re-register and re-download books from Amazon. Please download and install - this is a required update before upgrading to iOS 7.
Without Amazon explicitly stating what the problem is, it's not clear whether the fault lies in the Amazon app itself
