update changelog

Author: sunderme

utilities/manual/build/html/CHANGELOG.html

@@ -273,6 +273,7 @@ <h2>TeXstudio 4.9.0<a class="headerlink" href="#texstudio-4-9-0" title="Link to
 <li><p>extend find usage/goto definition for special arguments (e.g. glossary)</p></li>
 <li><p>fix tabular column definition detection to handle split lines</p></li>
 <li><p>add rainbow colored braces (default:off) <a class="reference external" href="https://github.com/texstudio-org/texstudio/pull/4224">#4224</a></p></li>
+<li><p>don’t add expl3 as user commands (#3919)[https://github.com/texstudio-org/texstudio/issues/3919]</p></li>
 </ul>
 </section>
 <section id="texstudio-4-8-9">

utilities/manual/build/html/searchindex.js

@@ -14,6 +14,7 @@
 - extend find usage/goto definition for special arguments (e.g. glossary)
 - fix tabular column definition detection to handle split lines
 - add rainbow colored braces (default:off) [#4224](https://github.com/texstudio-org/texstudio/pull/4224)
+- don't add expl3 as user commands (#3919)[https://github.com/texstudio-org/texstudio/issues/3919]
 
 ## TeXstudio 4.8.9