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Could anyone please tell me where I may find the release notes for XeTeX ?  I ask because the behaviour of \XeTeXpdffile changed somewhere between \XeTeXrevision = 0.99996 and \XeTeXrevision = 0.99999 (see code fragment below) and I would like to ensure that
 my code behaviour is correct for intermediate versions.<br>
<br>
<i>Philip Taylor<br>
--------<br>
</i><tt>\def \menus</tt><tt><br>
</tt><tt>    {%</tt><tt><br>
</tt><tt>        \begingroup</tt><tt><br>
</tt><tt>        \def \menufile { "Appendix D/Appendix-D.pdf" }%</tt><tt><br>
</tt><tt>        \def \doit</tt><tt><br>
</tt><tt>            {%</tt><tt><br>
</tt><tt>                \setbox 0 = \hbox {\XeTeXpdffile \menufile page \count 0 \transformed}%</tt><tt><br>
</tt><tt>                \sb 0</tt><tt><br>
</tt><tt>            }%</tt><tt><br>
</tt><tt>        \count 0 = 1</tt><tt><br>
</tt><tt>        \loop</tt><tt><br>
</tt><tt>            \ifnum \count 0 = 10 </tt><tt><br>
</tt><tt>                <b>\ifdim \XeTeXrevision pt < 0.99999pt</b></tt><tt><br>
</tt><tt>                    \def \transformed {  width \vsize height \hsize rotated 90}%</tt><tt><br>
</tt><tt>                \else</tt><tt><br>
</tt><tt>                    \def \transformed {  width \hsize height \vsize}%</tt><tt><br>
</tt><tt>                \fi                </tt><tt><br>
</tt><tt>            \else </tt><tt><br>
</tt><tt>                \def \transformed {  width \hsize height \vsize}%</tt><tt><br>
</tt><tt>            \fi</tt><tt><br>
</tt><tt>            \doit</tt><tt><br>
</tt><tt>        \ifnum \count 0  < \XeTeXpdfpagecount \menufile</tt><tt><br>
</tt><tt>            \advance \count 0 by 1</tt><tt><br>
</tt><tt>        \repeat</tt><tt><br>
</tt><tt>        \endgroup</tt><tt><br>
</tt><tt>    }</tt><i><br>
</i>
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