ow may or may not refer to
locations.  Consequently, <tt>eqv?</tt> is now unspecified in a few
cases where it was specified before.
</p>
<li><p>The mutability of the values of <tt>quasiquote</tt> structures has
been specified to some degree.
</p>
<li><p>The dynamic environment of the <i>before</i> and <i>after</i>
procedures of <tt>dynamic-wind</tt> is now specified.
</p>
<li><p>Various expressions that have only side effects are now allowed
to return an arbitrary number of values.
</p>
<li><p>The order and