By this measure We can officially welcome the Kindle in the 21st century. I know this sounds a little exaggerated, well, but for some reason no one fully understands, this report, which was supposed to appear sometime in the last years of the first decade of this century, was about 15 years late. Moreover, it was not to be a novelty, because it was supposed to be born that way, but the reality was completely different.
And it’s because Until now, the Kindle family has not supported the EPUB format.which has led many users of books in this format to have to convert them to MOBI, a format that Amazon has traditionally used, despite its attempts in this regard (perhaps the only reason we can infer its format policy) has never happened standard for books in electronic form.
A) Yes, It seems that Amazon has finally decided to side with reality and with a somewhat discreet movement, because they did not issue any message in this regard, they reversed this historical anomaly. So, as we can read in Amazon’s Help and Customer Service Center, EPUB has already been added to the list of formats compatible with Amazon Kindle readers, both physical and digital, and added to those that were previously compatible.

But the changes never come by themselves, and in this case the second innovation is almost as surprising in this respect as the first, namely The Kindle will stop supporting new MOBI files later this year. We can read about it on their website
Note: From the end of 2022, you will no longer be able to send MOBI files (.AZW, .MOBI) to the library via the Kindle personal document service. This change will not affect any MOBI files that are already in your Kindle library. MOBI is an older file format and does not support the new features of Kindle for Documents.
The good news, as you can read in this warning, is such all MOBI titles that users already have in their libraries will continue to work and be normally accessible, forcing us to think that at some point, the service will already contain some conversion system from within. However, I admit that this change in Kindle’s policy regarding MOBI and especially EPUB is surprising to me.
Here’s a list of formats supported by Kindle today:
- MOBI (.AZW, .MOBI) (no longer supports newer Kindle features)
- Microsoft Word (.DOC, .DOCX)
- HTML (.HTML, .HTM)
- RTF (.RTF)
- Text (.TXT)
- JPEG (.JPEG, .JPG)
- GIF (.GIF)
- PNG (.PNG)
- BMP (.BMP)
- PDF (.PDF)
- EPUB (.EPUB)