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					Originally Posted by whitearrow  It depends -- sometimes a publisher will pull an older version and upload the new version with a new ASIN.  Then the people who've already paid don't get to re-download for free, and they certainly don't get any notice about the new version. | 
	
 Yes, that can happen if there's a new edition. It shouldn't happen for revisions to an edition. Although the line between the two is a bit fuzzy.