/div><br>
<a href="r6rs-Z-H-2.html#node_toc_node_chap_E">Language changes</a></h1>
<p></p>
<p>
This chapter describes most of the changes that have been made to
Scheme since the &#8220;Revised<sup>5</sup> Report&#8221;&nbsp;[<a href="r6rs-Z-H-21.html#node_bib_14">14</a>] was published:</p>
<p>
</p>
<ul>
<li><p>Scheme source code now uses the Unicode character set.
Specifically, the character set that can be used for identifiers has
been greatly expanded.
</p>
<li><p>Identifiers can now start with the charac