[ibu]

Originally Posted by PeterT

Also see https://github.com/kobolabs/epub-spec

I read that document, but there's not much useful information in it.

Example:
The KePub-Software does not support the attribute
linear="no"
in the element itemref in the spine.
That is not mentioned document from kobolabs.

What would be so useful, would be data tables, where we could just look, if a specific feature of EPUB3 or a specific CSS property is supported by Kobo.

Like the following table for web browsers.
Example:
http://caniuse.com/#search=page-break-before