My application downloads a database file from the internet server at first launch and then may redownload it if the server have a newer version of database.
This database file is stored in <Application_Home>/Documents directory.
Apple approved previous version of my app when there was no iOS 5.0.1 yet one year ago.
But now they rejected new version of my app becouse it does not satisfy the rules of data storage.
I read this article on Apple site. But I can’t understand is it enough just set do not back up attribute to database file and keep the file in <Application_Home>/Documents or it’s need to place it to another place?
And how to support for previous iOS versions?
I encountered the exact same situation about a month ago with a client’s app. It was sufficient to just set the flag on the downloaded file(s) and resubmit. The process is quite straight forward using the Tech Note in the article you linked to.
As always with app reviews, your mileage may vary.