[XeTeX] The future of XeTeX

[Martin Schröder]

> For very good reason! "\pdfminorversion" is not only some monadic number, it's also a guarantee that this document conforms to a particular standard.

Not really. In pdfTeX the version enables certain features (object
streams, png inclusion).
But no guarantee is made for included pdfs: At most you will get a
warning in stderr
(if you include a higher pdf version than the main document).

Best
   Martin