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                <h1 id="migrating-from-wsc-52-third-party-libraries">Migrating from WSC 5.2 - Third Party Libraries<a class="headerlink" href="#migrating-from-wsc-52-third-party-libraries" title="Permanent link">#</a></h1>
<h2 id="scss-compiler">SCSS Compiler<a class="headerlink" href="#scss-compiler" title="Permanent link">#</a></h2>
<p>WoltLab Suite Core 5.3 upgrades the bundled SCSS compiler from <code>leafo/scssphp</code> 0.7.x to <code>scssphp/scssphp</code> 1.1.x.
With the updated composer package name the SCSS compiler also received updated namespaces.
WoltLab Suite Core adds a compatibility layer that maps the old namespace to the new namespace.
The classes themselves appear to be drop-in compatible.
Exceptions cannot be mapped using this compatibility layer, any <code>catch</code> blocks catching a specific Exception within the <code>Leafo</code> namespace will need to be adjusted.</p>
<p>More details can be found in the <a href="https://github.com/WoltLab/WCF/pull/3415">Pull Request WoltLab/WCF#3415</a>.</p>
<h2 id="guzzle">Guzzle<a class="headerlink" href="#guzzle" title="Permanent link">#</a></h2>
<p>WoltLab Suite Core 5.3 ships with a bundled version of <a href="http://docs.guzzlephp.org/en/6.5/">Guzzle 6</a>.
Going forward using Guzzle is the recommended way to perform HTTP requests.
The <code>\wcf\util\HTTPRequest</code> class should no longer be used and transparently uses Guzzle under the hood.</p>
<p>Use <code>\wcf\system\io\HttpFactory</code> to retrieve a correctly configured <code>GuzzleHttp\ClientInterface</code>.</p>
<p>Please note that it is recommended to explicitely specify a <code>sink</code> when making requests, due to a PHP / Guzzle bug.
Have a <a href="https://github.com/WoltLab/WCF/blob/ce163806c468763f6e3b04e4bf7318c6f8035737/wcfsetup/install/files/lib/util/HTTPRequest.class.php#L194-L195">look at the implementation in WoltLab/WCF</a> for an example.</p>
                
              
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