<p class="level1">libcurl was built with support for HTTP2. (Added in 7.33.0)
<p class="level0"><a name="CURLVERSIONUNIXSOCKETS"></a><span class="nroffip">CURL_VERSION_UNIX_SOCKETS</span>
<p class="level1">libcurl was built with support for Unix domain sockets. (Added in 7.40.0)
+<p class="level0"><a name="CURLVERSIONPSL"></a><span class="nroffip">CURL_VERSION_PSL</span>
+<p class="level1">libcurl was built with support for Mozilla's Public Suffix List. This makes libcurl ignore cookies with a domain that's on the list. (Added in 7.47.0)
<p class="level0"><span Class="emphasis">ssl_version</span> is an ASCII string for the OpenSSL version used. If libcurl has no SSL support, this is NULL.
<p class="level0"><span Class="emphasis">ssl_version_num</span> is always 0.
<p class="level0"><span Class="emphasis">libz_version</span> is an ASCII string (there is no numerical version). If libcurl has no libz support, this is NULL.