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Originally Posted by kso
Thanks for that. Can you confirm (or deny) that MOBI7 is what kindle used in medieval times, KF8/AZW3 is the last format used, KCR/AZK the one that introduced the switch from pure Mobi, and KFX is the Wall they're building? That would make sense to me as someone who's relatively new to kindling things.
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All of those formats are still actively in use. The original MOBI (Mobipocket) was based on HTML 3 and a Palm Pilot file format. While the oldest Kindle devices only support that format, it is still supported by even the newest Kindle apps and devices. Some special types of books are only available in that format, including dictionaries and newspapers.
At this point only KFX format is receiving enhancements and bug fixes. The older formats are all essentially frozen.
Quote:
Originally Posted by kso
And I fully understand that KFX is a one-way format (mostly anyway) and that "Enhanced Typesetting" is probably no more than a justification for switching to it.
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I believe that KFX is the result of a desire to have a proprietary e-book format that is totally under their own control.
Quote:
Originally Posted by kso
What I don't know is: do old devices, like the Voyage or DX, get ET in line with newer ones or are they stuck at whatever capability and bugginess they are at now?
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The Paperwhite 2 (6th generation) introduced in 2013 and all newer models are still receiving updates and support the latest features and formats, at least as much as their hardware allows. None of the models older than that have been updated in many years.
Kindle books can also be read using apps on all of the major platforms and those are kept updated fairly regularly.