Normally, app updates are supposed to allow for improvement and efficiency.

That’s not the case with Amazon’s latest update for its iOS Kindle app, which went into effect yesterday and now seems to have a bug that can delete your entire book library.

“Note: There is a known issue with this update,” it reads under the update information. “If you are an existing Kindle for iOS user, we recommend you do not install this update at this time.”

The user comments on the iOS app page aren’t pretty:

“Today’s (26 Feb 2013) upgrade erased all content on my iPad, including all of my bookmarks. What gives?”

“The update deleted all books from my iPad, and I had to register again, creating a second name for the same iPad. It’s like starting all over again. Now I have to upload over 130 books from the cloud.”

“Thank you new update for erasing all of my saved settings. Now I have to go through my hundreds of books to find the ones I haven’t read and change all of my screen settings.”

Luckily for Amazon and its customers, Kindle purchases are backed up in the cloud. We’ve reached out to Amazon and are waiting to hear back about an update.

UPDATE, 12:55 P.M.

Haven’t heard back from Amazon, but the iOS app page now lists a new update as version 3.6.2. There’s a “fix for registration issue” and “various bug fixes and security fixes.” So, you should be good to go now.

Previously on GeekWire: New Amazon Kindle ad supports same-sex marriage

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