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  <div class="section" id="backward-compatibility">
<h1>Backward Compatibility<a class="headerlink" href="#backward-compatibility" title="Permalink to this headline"></a></h1>
<p>pyOpenSSL has a very strong backward compatibility policy.
Generally speaking, you shouldn’t ever be afraid of updating.</p>
<p>If breaking changes are needed do be done, they are:</p>
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<li>…announced in the <a class="reference internal" href="changelog.html"><span class="doc">Changelog</span></a>.</li>
<li>…the old behavior raises a <code class="xref py py-exc docutils literal"><span class="pre">DeprecationWarning</span></code> for a year.</li>
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