Amazon sent all Kindle users mail “that starting August 2022, you’ll no longer be able to send MOBI (.mobi, .azw) files to your library” because “MOBI is an older file format and won’t support the newest Kindle features for documents.” “Also, compatible formats now include EPUB (.epub), which you can send to your library.”
Which format does Push to Kindle use? Does this change affect it in any way?