ISO/IEC standardization of EPUB: Concern

Dear colleagues,

I am concerned about creating an ISO/IEC Tchnical Specification from
EPUB 3.1.  This is because the current edition of ISO/IEC TS 30135
will be superseded.

As some people know, I was against mandating "3.1" as the value of the
the version attribute in EPUB 3.1.  Since EPUB 3.0 publications
specify "3.0", they are not conformant against EPUB 3.1.

A lot of EPUB publications in Japan are in EPUB 3.0, and most of them
are unlikely to be converted to EPUB 3.1.  If we create an ISO/IEC
Tchnical Specification from EPUB 3.1, such EPUB 3.0 publications will
not be backed by any ISO/IEC specifications.

Regards,

ISO/IEC JTC1/SC34/WG4 Convenor
Head of Delegation of the Japanese SC34 mirror
Makoto