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Next: <a href="Symbols-in-the-COMMON_002dLISP-Package.html" accesskey="n" rel="next">Symbols in the COMMON-LISP Package</a>, Previous: <a href="Language-Subsets.html" accesskey="p" rel="prev">Language Subsets</a>, Up: <a href="Introduction-_0028Introduction_0029.html" accesskey="u" rel="up">Introduction (Introduction)</a> </p>
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<span id="Deprecated-Language-Features-1"></span><h3 class="section">1.8 Deprecated Language Features</h3>
<p>Deprecated language features are not expected to appear in future <span class="roman">Common Lisp</span>
standards, but are required to be implemented for conformance with this
standard; see <a href="Required-Language-Features.html">Required Language Features</a>.
</p>
<p><i>Conforming programs</i> can use deprecated features;
however, it is considered good programming style to avoid them.
It is permissible for the compiler to produce <i>style warnings</i>
about the use of such features at compile time,
but there should be no such warnings at program execution time.
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