You know how every other ebook reader under the sun supports EPUB files, but Amazon's Kindle stubbornly refuses to do so? Well, that's changing.

Amazon quietly updated its help documentation (via Goodreader) to state that Kindle devices will start supporting EPUB files.

There's a catch, though. "Beginning in late 2022, Send to Kindle applications will support EPUB (.EPUB) format," says the document. This means you'll be able to send EPUB files to your Kindle via Amazon's handy Send to Kindle system, which essentially lets you upload documents to your Kindle by emailing them to your Kindle email address. It's unclear, however, whether Kindles will natively support EPUB files, allowing you to purchase ebooks from Amazon's library in the EPUB format directly.

This is a big deal for everyone who owns a Kindle and isn't completely reliant on Amazon's library. Until now, you had to manually convert EPUB files into MOBI (or another format) to load them onto your Kindle, and this often brought additional issues as the conversion wasn't always perfect.

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Also, the news is notable for the sheer fact that Amazon avoided supporting the otherwise widely supported EPUB format for nearly 15 years (EPUB is an open standard that originally launched in September 2007).

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Additionally, Amazon's document says that – also in late 2022 – its Send to Kindle system will stop supporting MOBI files (ironically, MOBI was Amazon's long-preferred standard, and the company has its own version of MOBI called AZW).

"This change won't affect any MOBI files already in your Kindle library. MOBI is an older file format and won't support the newest Kindle features for documents," the document states.