diff --git a/.github/actions/setup/action.yml b/.github/actions/setup/action.yml
index 94a5e3bd..b4315f44 100644
--- a/.github/actions/setup/action.yml
+++ b/.github/actions/setup/action.yml
@@ -13,7 +13,9 @@ runs:
     - name: Cache local Maven repository
       uses: actions/cache@v4
       with:
-        path: ~/.m2/repository
+        path: |
+          ~/.m2/repository
+          net.sourceforge.pmd.eclipse.plugin/japicmp-data
         # re-cache on changes in the pom and target files
         key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml', '**/*.target') }}
         restore-keys: |
diff --git a/.gitignore b/.gitignore
index 26068c8f..ffd60c45 100644
--- a/.gitignore
+++ b/.gitignore
@@ -6,3 +6,4 @@ target/
 .pmd
 .ruleset
 .pmdruleset.xml
+net.sourceforge.pmd.eclipse.plugin/japicmp-data
diff --git a/ReleaseNotes.md b/ReleaseNotes.md
index 1b7c0d15..d0abb2c3 100644
--- a/ReleaseNotes.md
+++ b/ReleaseNotes.md
@@ -14,6 +14,7 @@ This is a minor release.
 ### New and noteworthy
 
 ### Fixed Issues
+* [#192](https://github.com/pmd/pmd-eclipse-plugin/pull/192): Add japicmp
 
 ### API Changes
 
diff --git a/net.sourceforge.pmd.eclipse.plugin/pom.xml b/net.sourceforge.pmd.eclipse.plugin/pom.xml
index 199d3043..f22759a8 100644
--- a/net.sourceforge.pmd.eclipse.plugin/pom.xml
+++ b/net.sourceforge.pmd.eclipse.plugin/pom.xml
@@ -110,6 +110,66 @@
             <suppressionsLocation>checkstyle-suppressions.xml</suppressionsLocation>
           </configuration>
         </plugin>
+        <plugin>
+          <groupId>org.apache.maven.plugins</groupId>
+          <artifactId>maven-antrun-plugin</artifactId>
+          <version>3.1.0</version>
+          <executions>
+            <execution>
+              <phase>verify</phase>
+              <configuration>
+                <target description="Download previous plugin version for japicmp"
+                        unless="japicmp.skip">
+                  <property name="oldVersion" value="7.0.0.v20240322-0920-r"/>
+                  <mkdir dir="${project.basedir}/japicmp-data/net.sourceforge.pmd.eclipse.p2updatesite-${oldVersion}"/>
+                  <get src="https://github.com/pmd/pmd-eclipse-plugin/releases/download/${oldVersion}/net.sourceforge.pmd.eclipse.p2updatesite-${oldVersion}.zip"
+                       dest="${project.basedir}/japicmp-data/" skipexisting="true"/>
+                  <unzip src="${project.basedir}/japicmp-data/net.sourceforge.pmd.eclipse.p2updatesite-${oldVersion}.zip"
+                         dest="${project.basedir}/japicmp-data/net.sourceforge.pmd.eclipse.p2updatesite-${oldVersion}/"/>
+                </target>
+              </configuration>
+              <goals>
+                <goal>run</goal>
+              </goals>
+            </execution>
+          </executions>
+        </plugin>
+        <plugin>
+          <groupId>com.github.siom79.japicmp</groupId>
+          <artifactId>japicmp-maven-plugin</artifactId>
+          <configuration>
+            <oldVersion>
+              <file>
+                <path>${project.basedir}/japicmp-data/net.sourceforge.pmd.eclipse.p2updatesite-7.0.0.v20240322-0920-r/plugins/net.sourceforge.pmd.eclipse.plugin_7.0.0.v20240322-0920-r.jar</path>
+              </file>
+            </oldVersion>
+            <newVersion>
+              <file>
+                <path>${project.build.directory}/${project.artifactId}-${project.version}.jar</path>
+              </file>
+            </newVersion>
+            <parameter>
+              <breakBuildBasedOnSemanticVersioning>true</breakBuildBasedOnSemanticVersioning>
+              <onlyModified>true</onlyModified>
+              <excludes>
+                <exclude>net.sourceforge.pmd.eclipse.core.internal</exclude>
+                <exclude>net.sourceforge.pmd.eclipse.logging.internal</exclude>
+                <exclude>net.sourceforge.pmd.eclipse.runtime.cmd.internal</exclude>
+                <exclude>net.sourceforge.pmd.eclipse.ui.actions.internal</exclude>
+                <exclude>net.sourceforge.pmd.eclipse.util.internal</exclude>
+              </excludes>
+            </parameter>
+          </configuration>
+          <executions>
+            <execution>
+              <id>japicmp</id>
+              <phase>verify</phase>
+              <goals>
+                <goal>cmp</goal>
+              </goals>
+            </execution>
+          </executions>
+        </plugin>
     </plugins>
     <pluginManagement>
       <plugins>
diff --git a/pom.xml b/pom.xml
index 92e02769..20896c97 100644
--- a/pom.xml
+++ b/pom.xml
@@ -428,6 +428,11 @@
             </dependency>
           </dependencies>
         </plugin>
+        <plugin>
+          <groupId>com.github.siom79.japicmp</groupId>
+          <artifactId>japicmp-maven-plugin</artifactId>
+          <version>0.20.0</version>
+        </plugin>
         <!--This plugin's configuration is used to store Eclipse m2e settings only. It has no influence on the Maven build itself.-->
         <plugin>
           <groupId>org.eclipse.m2e</groupId>