diff --git a/Jenkinsfile b/Jenkinsfile
index 0dd16004a..0d99f649b 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -109,8 +109,6 @@ for (int i = 0; i < splits.size(); i++) {
     if (jdk != 21 && jenkinsVersion == 'latest') {
       return
     }
-    // TODO enable on LTS line when it is based on 2.480 or later
-    def cspRule = jenkinsVersion == 'latest'
     def name = "${jenkinsVersion}-${platform}-jdk${jdk}-${browser}-split${index}"
     branches[name] = {
       stage(name) {
@@ -149,7 +147,7 @@ for (int i = 0; i < splits.size(); i++) {
                           eval \$(vnc.sh)
                           java -version
                           mvn -v
-                          run.sh ${browser} ${jenkinsVersion} -Dmaven.repo.local=${WORKSPACE_TMP}/m2repo -Dmaven.test.failure.ignore=true -Dcsp.rule=${cspRule} -DforkCount=1 -B
+                          run.sh ${browser} ${jenkinsVersion} -Dmaven.repo.local=${WORKSPACE_TMP}/m2repo -Dmaven.test.failure.ignore=true -Dcsp.rule -DforkCount=1 -B
                           cp --verbose target/surefire-reports/TEST-*.xml /reports
                           """
                     }
diff --git a/src/main/java/org/jenkinsci/test/acceptance/plugins/ssh_slaves/SshSlaveLauncher.java b/src/main/java/org/jenkinsci/test/acceptance/plugins/ssh_slaves/SshSlaveLauncher.java
index 0afb48c15..540dd04b7 100644
--- a/src/main/java/org/jenkinsci/test/acceptance/plugins/ssh_slaves/SshSlaveLauncher.java
+++ b/src/main/java/org/jenkinsci/test/acceptance/plugins/ssh_slaves/SshSlaveLauncher.java
@@ -3,7 +3,6 @@
 import static org.junit.Assert.assertTrue;
 
 import edu.umd.cs.findbugs.annotations.CheckForNull;
-import hudson.util.VersionNumber;
 import java.time.Duration;
 import org.jenkinsci.test.acceptance.plugins.credentials.UserPwdCredential;
 import org.jenkinsci.test.acceptance.plugins.ssh_credentials.SshCredentialDialog;
@@ -13,7 +12,6 @@
 import org.jenkinsci.test.acceptance.po.Describable;
 import org.jenkinsci.test.acceptance.po.PageObject;
 import org.jenkinsci.test.acceptance.selenium.UselessFileDetectorReplacement;
-import org.openqa.selenium.By;
 
 /**
  * @author Kohsuke Kawaguchi
@@ -37,29 +35,9 @@ public SshSlaveLauncher(PageObject context, String path) {
     public SshCredentialDialog addCredential() {
         find(by.button("Add")).click();
 
-        if (getElement(By.cssSelector(".credentials-add-menu-items")) != null) {
-            /*
-             * This condition is for backwards compatibility and can be removed when we drop support for Credentials
-             * 1381 and earlier.
-             */
-            String providerXpathExpr = "//div[contains(@class,'credentials-add-menu-items')]"
-                    + "/div[@class='bd']/ul[@class='first-of-type']/li[contains(@class, 'yuimenuitem')]"
-                    + "/span[contains(@class,'yuimenuitemlabel') and contains(@tooltip, 'Jenkins Credentials Provider')]";
-            waitFor(by.xpath(providerXpathExpr)).click();
-        } else if (getPage().getJenkins().getVersion().isOlderThan(new VersionNumber("2.480"))) {
-            /*
-             * This condition is for backwards compatibility and can be removed when we drop support for 2.479 and
-             * earlier.
-             */
-            all(by.css(".jenkins-dropdown"))
-                    .get(1)
-                    .findElement(by.button("Jenkins Credentials Provider"))
-                    .click();
-        } else {
-            find(by.css(".jenkins-dropdown"))
-                    .findElement(by.button("Jenkins Credentials Provider"))
-                    .click();
-        }
+        find(by.css(".jenkins-dropdown"))
+                .findElement(by.button("Jenkins Credentials Provider"))
+                .click();
 
         return new SshCredentialDialog(getPage(), "/credentials");
     }
diff --git a/src/main/java/org/jenkinsci/test/acceptance/po/LabelAxis.java b/src/main/java/org/jenkinsci/test/acceptance/po/LabelAxis.java
index 48bbc9fd1..15797e579 100644
--- a/src/main/java/org/jenkinsci/test/acceptance/po/LabelAxis.java
+++ b/src/main/java/org/jenkinsci/test/acceptance/po/LabelAxis.java
@@ -1,7 +1,6 @@
 package org.jenkinsci.test.acceptance.po;
 
 import java.time.Duration;
-import org.openqa.selenium.NoSuchElementException;
 import org.openqa.selenium.WebElement;
 
 /**
@@ -17,25 +16,11 @@ public void select(String name) {
         WebElement checkBox =
                 find(by.path(getPath())).findElement(by.xpath(".//input[@name='values' and @json='%s']", name));
         if (!checkBox.isDisplayed()) {
-            try {
-                // unfold the labels and slaves sub-nodes
-                find(by.xpath("(//button[@class='jenkins-button mp-label-axis__button'])[1]"))
-                        .click();
-                find(by.xpath("(//button[@class='jenkins-button mp-label-axis__button'])[2]"))
-                        .click();
-            } catch (NoSuchElementException e) {
-                // forward compatibility
-            }
-
-            try {
-                // unfold the labels and slaves sub-nodes
-                find(by.xpath("//div[@class='yahooTree labelAxis-tree']//table[@id='ygtvtableel1']//a"))
-                        .click();
-                find(by.xpath("//div[@class='yahooTree labelAxis-tree']//table[@id='ygtvtableel2']//a"))
-                        .click();
-            } catch (NoSuchElementException e) {
-                // backward compatibility
-            }
+            // unfold the labels and slaves sub-nodes
+            find(by.xpath("(//button[@class='jenkins-button mp-label-axis__button'])[1]"))
+                    .click();
+            find(by.xpath("(//button[@class='jenkins-button mp-label-axis__button'])[2]"))
+                    .click();
 
             waitFor().withTimeout(Duration.ofSeconds(3)).until(checkBox::isDisplayed);
         }