Quote:
Originally Posted by slm
Would an updated Kindle app use a different "ID" than the one it updates?
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It should use the same encryption key. Amazon retains the key so that books downloaded prior to the update can still be read. However if it updates to version 4.18 or later it will download books in KFX format. With version 8.22 (released in 2019) or later the KFX DRM will not be removable.