Amazon recently announced that older Kindle models will not be able to buy books from August onwards and now another change is being communicated to its users. This time it is related to the support for MOBI files, which is used by many people to send documents to the digital reader and will be discontinued in the coming months.
The announcement is being sent by Amazon via email to users of the feature that allows you to send documents to the Kindle. According to the company, the justification is that the MOBI format (.mobi, .azw) is old and incompatible with new features of the reader for documents.
As of August 2022, you will no longer be able to upload MOBI files (.mobi, .azw) to your Kindle collection. MOBI files already in your collection will not be affected by this change. MOBI is an older file format and is not supported by the latest Kindle features for documents. Any existing MOBI files that you want to read with our most up-to-date resources for documents will need to be re-uploaded in a supported format.
Fortunately, existing MOBI files on the Kindle will not be deleted and will still be readable, but Amazon stresses that you will have to re-upload them to gain access to new features, which are not yet detailed in the release.
On the other hand, Amazon says that the supported format from now on will be EPUB (.epub), which is also used by many Kindle users. Another interesting change is the addition of the Send to Kindle feature in the official app for Android and iOS, allowing readers to send their files through their cell phones.
Of course, the function will also be supported in the Kindle app for PC and Mac, in addition to Send to Kindle via email, so just save your files in this alternative format to continue using the function.