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KevinH · 07-12-2026, 07:14 PM

As much as I would love to leave epub2 to bitrot, there are still many tools and places (Europe, etc) where epub2 still dominates. So I would focus on epub 3.3 first (not the epub 3.4 extensions that have not been adopted by anyone yet) and then epub2 compliance.

But that is your call.

Yes, the json output should allow a Sigil plugin to be developed to integrate its results right into Sigil's validation window.

07-12-2026, 07:14 PM	#64
KevinH Sigil Developer Posts: 9,800 Karma: 7500000 Join Date: Nov 2009 Device: many	As much as I would love to leave epub2 to bitrot, there are still many tools and places (Europe, etc) where epub2 still dominates. So I would focus on epub 3.3 first (not the epub 3.4 extensions that have not been adopted by anyone yet) and then epub2 compliance. But that is your call. Yes, the json output should allow a Sigil plugin to be developed to integrate its results right into Sigil's validation window. Last edited by KevinH; 07-12-2026 at 07:16 PM.