Replacing Amazon’s MOBI with EPUB
11th August 2022
Amazon has announced the retirement of its proprietary MOBI file format for eBooks, and a transition to the EPUB format for use on Kindle devices and apps. As of August 2022, you will no longer be able to send the MOBI file format to Kindles or the Kindle app using the Send to Kindle service. The MOBI file format no longer supports the newest document features, while the EPUB format is updated and accepted by Kindle devices.