diff --git a/.mvn/extensions.xml b/.mvn/extensions.xml
new file mode 100644
index 00000000..43d62816
--- /dev/null
+++ b/.mvn/extensions.xml
@@ -0,0 +1,7 @@
+<extensions xmlns="http://maven.apache.org/EXTENSIONS/1.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/EXTENSIONS/1.0.0 http://maven.apache.org/xsd/core-extensions-1.0.0.xsd">
+  <extension>
+    <groupId>io.jenkins.tools.incrementals</groupId>
+    <artifactId>git-changelist-maven-extension</artifactId>
+    <version>1.2</version>
+  </extension>
+</extensions>
diff --git a/.mvn/maven.config b/.mvn/maven.config
new file mode 100644
index 00000000..2a0299c4
--- /dev/null
+++ b/.mvn/maven.config
@@ -0,0 +1,2 @@
+-Pconsume-incrementals
+-Pmight-produce-incrementals
diff --git a/Jenkinsfile b/Jenkinsfile
index dbbe4cd8..a229fa51 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -1 +1 @@
-buildPlugin(jenkinsVersions: [null, '2.73.1'])
+buildPlugin()
diff --git a/pom.xml b/pom.xml
index 31d1766b..c4407203 100644
--- a/pom.xml
+++ b/pom.xml
@@ -4,12 +4,12 @@
   <parent>
     <groupId>org.jenkins-ci.plugins</groupId>
     <artifactId>plugin</artifactId>
-    <version>3.53</version>
+    <version>4.4</version>
     <relativePath />
   </parent>
 
   <artifactId>ldap</artifactId>
-  <version>1.26-SNAPSHOT</version>
+  <version>${revision}${changelist}</version>
   <packaging>hpi</packaging>
 
   <name>LDAP Plugin</name>
@@ -24,16 +24,20 @@
   </licenses>
 
   <properties>
+    <revision>1.26</revision>
+    <changelist>-SNAPSHOT</changelist>
+    <gitHubRepo>jenkinsci/${project.artifactId}-plugin</gitHubRepo>
     <apacheds.version>2.0.0.AM25</apacheds.version>
-    <jenkins.version>2.60.3</jenkins.version>
+    <jenkins.version>2.235.3</jenkins.version>
     <java.level>8</java.level>
     <configuration-as-code.version>1.36</configuration-as-code.version>
   </properties>
 
   <scm>
-    <connection>scm:git:git://github.com/jenkinsci/${project.artifactId}-plugin.git</connection>
-    <developerConnection>scm:git:git@github.com:jenkinsci/${project.artifactId}-plugin.git</developerConnection>
-    <tag>HEAD</tag>
+    <connection>scm:git:git://github.com/${gitHubRepo}.git</connection>
+    <developerConnection>scm:git:git@github.com:${gitHubRepo}.git</developerConnection>
+    <url>https://github.com/${gitHubRepo}</url>
+    <tag>${scmTag}</tag>
   </scm>
 
   <repositories>
@@ -50,6 +54,65 @@
   </pluginRepositories>
 
   <dependencies>
+    <dependency> <!-- to appear earlier in the test CP for purposes of PCT -->
+      <groupId>org.jenkins-ci.main</groupId>
+      <artifactId>jenkins-core</artifactId>
+      <version>${jenkins.version}</version>
+    </dependency>
+    <dependency> <!-- for compatibility with https://github.com/jenkinsci/jenkins/pull/4848 -->
+      <groupId>org.acegisecurity</groupId>
+      <artifactId>acegi-security</artifactId>
+      <version>1.0.7</version>
+      <exclusions>
+        <exclusion>
+          <groupId>commons-codec</groupId>
+          <artifactId>commons-codec</artifactId>
+        </exclusion>
+        <exclusion>
+          <groupId>commons-collections</groupId>
+          <artifactId>commons-collections</artifactId>
+        </exclusion>
+        <exclusion>
+          <groupId>commons-lang</groupId>
+          <artifactId>commons-lang</artifactId>
+        </exclusion>
+        <exclusion>
+          <groupId>org.springframework</groupId>
+          <artifactId>spring-core</artifactId>
+        </exclusion>
+        <exclusion>
+          <groupId>org.springframework</groupId>
+          <artifactId>spring-jdbc</artifactId>
+        </exclusion>
+        <exclusion>
+          <groupId>org.springframework</groupId>
+          <artifactId>spring-remoting</artifactId>
+        </exclusion>
+        <exclusion>
+          <groupId>org.springframework</groupId>
+          <artifactId>spring-support</artifactId>
+        </exclusion>
+      </exclusions>
+    </dependency>
+    <dependency>
+      <groupId>org.springframework</groupId>
+      <artifactId>spring-dao</artifactId>
+      <version>1.2.9</version>
+      <exclusions>
+        <exclusion>
+          <groupId>org.springframework</groupId>
+          <artifactId>spring-beans</artifactId>
+        </exclusion>
+        <exclusion>
+          <groupId>org.springframework</groupId>
+          <artifactId>spring-context</artifactId>
+        </exclusion>
+        <exclusion>
+          <groupId>org.springframework</groupId>
+          <artifactId>spring-core</artifactId>
+        </exclusion>
+      </exclusions>
+    </dependency>
     <dependency>
       <groupId>org.jenkins-ci.plugins</groupId>
       <artifactId>mailer</artifactId>