diff --git a/docs/index.md b/docs/index.md
index 6066c103a8..46df788333 100644
--- a/docs/index.md
+++ b/docs/index.md
@@ -7,7 +7,7 @@ summary: >
     Welcome to the documentation site for PMD and CPD! <br/><br/>
 
 
-last_updated: August 2017
+last_updated: October 2022
 author: Jeff Jensen <jjensen@apache.org>, Andreas Dangel <andreas.dangel@adangel.org>,
         Clément Fournier <clement.fournier76@gmail.com>
 ---
@@ -29,7 +29,7 @@ author: Jeff Jensen <jjensen@apache.org>, Andreas Dangel <andreas.dangel@adangel
 
 **PMD** is a static source code analyzer. It finds common programming flaws like
 unused variables, empty catch blocks, unnecessary object creation, and
-so forth. It's mainly concerned with **Java and Apex**, but **supports six other
+so forth. It's mainly concerned with **Java and Apex**, but **supports 12 other
 languages**.
 
 PMD features many **built-in checks** (in PMD lingo, *rules*), which are documented
diff --git a/docs/pages/pmd/userdocs/cli_reference.md b/docs/pages/pmd/userdocs/cli_reference.md
index 69a29d966d..47e413805c 100644
--- a/docs/pages/pmd/userdocs/cli_reference.md
+++ b/docs/pages/pmd/userdocs/cli_reference.md
@@ -197,18 +197,20 @@ Example:
 ```
 
 *   [apex](pmd_rules_apex.html) (Salesforce Apex)
+*   [ecmascript](pmd_rules_ecmascript.html) (JavaScript)
+*   [html](pmd_rules_html.html)
 *   [java](pmd_rules_java.html)
     *   [Supported Versions](pmd_languages_java.html)
-*   [ecmascript](pmd_rules_ecmascript.html) (JavaScript)
 *   [jsp](pmd_rules_jsp.html)
 *   [modelica](pmd_rules_modelica.html)
 *   [plsql](pmd_rules_plsql.html)
+*   [pom](pmd_rules_pom.html) (Maven POM)
 *   [scala](pmd_rules_scala.html)
     *   Supported Versions: 2.10, 2.11, 2.12, 2.13 (default)
 *   [vf](pmd_rules_vf.html) (Salesforce VisualForce)
 *   [vm](pmd_rules_vm.html) (Apache Velocity)
-*   [xml and xsl](pmd_rules_xml.html)
-
+*   [xml](pmd_rules_xml.html)
+*   [xsl](pmd_rules_xsl.html)
 
 ## Available Report Formats
 
diff --git a/docs/pages/pmd/userdocs/installation.md b/docs/pages/pmd/userdocs/installation.md
index 7b053bf4e1..89aa58cf3e 100644
--- a/docs/pages/pmd/userdocs/installation.md
+++ b/docs/pages/pmd/userdocs/installation.md
@@ -15,7 +15,7 @@ sidebar: pmd_sidebar
     OpenJDK from [Azul](https://www.azul.com/downloads/zulu-community/)
     or [AdoptOpenJDK](https://adoptopenjdk.net/) 1.7 or higher.
     
-    **Note:** For analyzing Apex, JavaScript, Scala or VisualForce or running the [Designer](pmd_userdocs_extending_designer_reference.html)
+    **Note:** For analyzing Apex, HTML, JavaScript, Scala or VisualForce or running the [Designer](pmd_userdocs_extending_designer_reference.html)
     at least Java 8 is required.
     
 *   A zip archiver, e.g.:
@@ -23,7 +23,7 @@ sidebar: pmd_sidebar
     * For Windows: [Winzip](http://winzip.com) or the free [7-zip](http://www.7-zip.org/)
     * For Linux / Unix: [InfoZip](http://infozip.sourceforge.net/)
 
-{% include note.html content="For executing the Designer (./run.sh designer) using [OpenJDK](http://jdk.java.net) or Java 11, you need additionally [OpenJFX](http://jdk.java.net). Download it, extract it and set the environment variable JAVAFX_HOME." %}
+{% include note.html content="For executing the Designer (./run.sh designer) using [OpenJDK](http://jdk.java.net) or Java 11, you need additionally [OpenJFX](https://openjfx.io/). Download it, extract it and set the environment variable JAVAFX_HOME." %}
 
 
 ### Installation
diff --git a/docs/pages/release_notes.md b/docs/pages/release_notes.md
index b8f8783555..1107d2084f 100644
--- a/docs/pages/release_notes.md
+++ b/docs/pages/release_notes.md
@@ -15,6 +15,8 @@ This is a {{ site.pmd.release_type }} release.
 ### New and noteworthy
 
 ### Fixed Issues
+* doc
+    * [#4143](https://github.com/pmd/pmd/pull/4142) \[doc] Update docs to reflect supported languages
 
 ### API Changes
 
diff --git a/pom.xml b/pom.xml
index fb64541507..a6d461d9bb 100644
--- a/pom.xml
+++ b/pom.xml
@@ -10,10 +10,10 @@
     <description>
         PMD is a source code analyzer. It finds common programming flaws like unused variables, empty catch blocks,
         unnecessary object creation, and so forth. It supports Java, JavaScript, Salesforce.com Apex and Visualforce,
-        Modelica, PLSQL, Apache Velocity, XML, XSL, Scala.
+        Modelica, PLSQL, Apache Velocity, HTML, XML, XSL, Scala.
 
         Additionally it includes CPD, the copy-paste-detector. CPD finds duplicated code in
-        C/C++, C#, Dart, Fortran, Go, Groovy, Java, JavaScript, JSP, Kotlin, Lua, Matlab, Modelica,
+        C/C++, C#, Dart, Fortran, Gherkin, Go, Groovy, HTML, Java, JavaScript, JSP, Kotlin, Lua, Matlab, Modelica,
         Objective-C, Perl, PHP, PLSQL, Python, Ruby, Salesforce.com Apex, Scala, Swift and Visualforce.
     </description>