Hacker News new | ask | show | jobs
by Finnucane 1880 days ago
Note that mobi format is being deprecated by Amazon. If you're producing a file for distribution by Amazon, you only need the epub file.
1 comments

However, Kindles can't read epub directly. If you're trying to produce a file you can sideload on your (or your customer's) Kindle without going through Amazon, you're still gonna need mobi, or one of the later proprietary (and undocumented) Amazon mobi variants.
True, but I wouldn't count on that being supported forever.
The day Kindles stop supporting side-loaded third-party content is the day I stop buying Kindles.