diff --git a/core/src/main/java/jenkins/monitor/JavaVersionRecommendationAdminMonitor.java b/core/src/main/java/jenkins/monitor/JavaVersionRecommendationAdminMonitor.java
index 3cdbfa4a02..712c957d85 100644
--- a/core/src/main/java/jenkins/monitor/JavaVersionRecommendationAdminMonitor.java
+++ b/core/src/main/java/jenkins/monitor/JavaVersionRecommendationAdminMonitor.java
@@ -78,7 +78,6 @@ public class JavaVersionRecommendationAdminMonitor extends AdministrativeMonitor
 
     static {
         NavigableMap<Integer, LocalDate> supportedVersions = new TreeMap<>();
-        supportedVersions.put(17, LocalDate.of(2026, 3, 31)); // Temurin: 2027-10-31
         supportedVersions.put(21, LocalDate.of(2027, 9, 30)); // Temurin: 2029-09-30
         supportedVersions.put(25, LocalDate.of(2029, 9, 30)); // Temurin: 2031-09-30
         SUPPORTED_JAVA_VERSIONS = Collections.unmodifiableNavigableMap(supportedVersions);
diff --git a/core/src/main/java/jenkins/security/stapler/StaplerDispatchValidator.java b/core/src/main/java/jenkins/security/stapler/StaplerDispatchValidator.java
index 6da06ad841..028b2dba1d 100644
--- a/core/src/main/java/jenkins/security/stapler/StaplerDispatchValidator.java
+++ b/core/src/main/java/jenkins/security/stapler/StaplerDispatchValidator.java
@@ -311,7 +311,6 @@ public class StaplerDispatchValidator implements DispatchValidator {
             }
         }
 
-        @SuppressFBWarnings(value = "SIC_INNER_SHOULD_BE_STATIC", justification = "TODO needs triage")
         private class Validator {
             // lazy load parents to avoid trying to load potentially unavailable classes
             private final Supplier<Collection<Validator>> parentsSupplier;
diff --git a/pom.xml b/pom.xml
index f78ed0c869..28aa55ef31 100644
--- a/pom.xml
+++ b/pom.xml
@@ -28,7 +28,7 @@ THE SOFTWARE.
   <parent>
     <groupId>org.jenkins-ci</groupId>
     <artifactId>jenkins</artifactId>
-    <version>1.142</version>
+    <version>2.1326.v00b_e26755312</version>
     <relativePath />
   </parent>
 
diff --git a/war/src/main/java/executable/Main.java b/war/src/main/java/executable/Main.java
index 2eeed2622d..70411a6352 100644
--- a/war/src/main/java/executable/Main.java
+++ b/war/src/main/java/executable/Main.java
@@ -76,7 +76,7 @@ public class Main {
      * This list must remain synchronized with the one in {@code
      * JavaVersionRecommendationAdminMonitor}.
      */
-    private static final NavigableSet<Integer> SUPPORTED_JAVA_VERSIONS = new TreeSet<>(List.of(17, 21, 25));
+    private static final NavigableSet<Integer> SUPPORTED_JAVA_VERSIONS = new TreeSet<>(List.of(21, 25));
 
     /**
      * Sets custom session cookie name.
diff --git a/war/src/test/java/executable/MainTest.java b/war/src/test/java/executable/MainTest.java
index 106b835ac3..a7b28a5b08 100644
--- a/war/src/test/java/executable/MainTest.java
+++ b/war/src/test/java/executable/MainTest.java
@@ -13,26 +13,26 @@ class MainTest {
         assertJavaCheckFails(8, true);
         assertJavaCheckFails(11, false);
         assertJavaCheckFails(11, true);
+        assertJavaCheckFails(17, false);
+        assertJavaCheckFails(17, true);
     }
 
     @Test
     void supported() {
-        assertJavaCheckPasses(17, false);
-        assertJavaCheckPasses(17, true);
         assertJavaCheckPasses(21, false);
         assertJavaCheckPasses(21, true);
+        assertJavaCheckPasses(25, false);
+        assertJavaCheckPasses(25, true);
     }
 
     @Test
     void future() {
-        assertJavaCheckFails(18, false);
-        assertJavaCheckFails(19, false);
-        assertJavaCheckFails(20, false);
         assertJavaCheckFails(22, false);
-        assertJavaCheckPasses(18, true);
-        assertJavaCheckPasses(19, true);
-        assertJavaCheckPasses(20, true);
+        assertJavaCheckFails(23, false);
+        assertJavaCheckFails(24, false);
         assertJavaCheckPasses(22, true);
+        assertJavaCheckPasses(23, true);
+        assertJavaCheckPasses(24, true);
     }
 
     private static void assertJavaCheckFails(int releaseVersion, boolean enableFutureJava) {