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<h2 class="title">Changes in SAPI Modules</h2>
<div class="sect2" id="migration70.sapi-changes.fpm">
<h3 class="title"><a href="book.fpm.html" class="link">FPM</a></h3>
<div class="sect3" id="migration70.sapi-changes.fpm.listen">
<h4 class="title">
Unqualified <a href="install.fpm.configuration.html#listen" class="link">listen</a> ports now listen on both
IPv4 and IPv6
</h4>
<p class="para">
In PHP 5, a <a href="install.fpm.configuration.html#listen" class="link">listen</a> directive with only a
port number would listen on all interfaces, but only on IPv4. PHP 7 will
now accept requests made via both IPv4 and IPv6.
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<p class="para">
This does not affect directives which include specific IP addresses; these
will continue to only listen on that address and protocol.
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