Calibre 8.6 Update: What's the Best Format for Kindle Newspapers Now?

economicsreader · 07-11-2025, 06:18 AM

I saw that Calibre 8.6 now sets AZW3 as the default output format for Kindle, since MOBI is obsolete and all Kindles released in the past decade support AZW3.

I use Calibre’s 'Fetch News' feature a lot and love it. I've stuck with MOBI mostly because it was the default when I installed Calibre, and because when I tried other formats, only MOBI seemed to correctly group periodicals/newspapers into a single collection on my Kindle, where all issues of the same publication appear together.

Is there a better format for periodicals than MOBI? What have others found works best?

kovidgoyal · 07-11-2025, 08:05 AM

When the output format is azw3 periodicals are still downloaded in MOBI automatically.

07-11-2025, 06:18 AM	#1
economicsreader Junior Member Posts: 6 Karma: 10 Join Date: Jan 2025 Device: Kindle Paperwhite Gen 11	Calibre 8.6 Update: What's the Best Format for Kindle Newspapers Now? I saw that Calibre 8.6 now sets AZW3 as the default output format for Kindle, since MOBI is obsolete and all Kindles released in the past decade support AZW3. I use Calibre’s 'Fetch News' feature a lot and love it. I've stuck with MOBI mostly because it was the default when I installed Calibre, and because when I tried other formats, only MOBI seemed to correctly group periodicals/newspapers into a single collection on my Kindle, where all issues of the same publication appear together. Is there a better format for periodicals than MOBI? What have others found works best?

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07-11-2025, 08:05 AM	#2
kovidgoyal creator of calibre Posts: 45,354 Karma: 27182818 Join Date: Oct 2006 Location: Mumbai, India Device: Various	When the output format is azw3 periodicals are still downloaded in MOBI automatically.