diff --git a/.github/workflows/maven-verify.yml b/.github/workflows/maven-verify.yml
index dbdabb6f1..be6eeb616 100644
--- a/.github/workflows/maven-verify.yml
+++ b/.github/workflows/maven-verify.yml
@@ -27,5 +27,5 @@ jobs:
     uses: apache/maven-gh-actions-shared/.github/workflows/maven-verify.yml@v3
     with:
       ff-site-run: false
-
+      jdk-matrix: '[ "11", "17", "21" ]'
 
diff --git a/Jenkinsfile b/Jenkinsfile
index d89f893d1..ef5393dda 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -17,7 +17,5 @@
  * under the License.
  */
 
-// Currently we can only build with JDK8+ based on the usage
-// of bnd-maven-plugin.
-asfMavenTlpStdBuild( 'jdks' : [ "8", "11", "17" ] )
+asfMavenTlpStdBuild( 'jdks' : [ "11", "17", "21" ] )
 
diff --git a/maven-resolver-api/pom.xml b/maven-resolver-api/pom.xml
index 1d9773a80..c3a9991c0 100644
--- a/maven-resolver-api/pom.xml
+++ b/maven-resolver-api/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <groupId>org.apache.maven.resolver</groupId>
     <artifactId>maven-resolver</artifactId>
-    <version>1.9.17-SNAPSHOT</version>
+    <version>2.0.0-SNAPSHOT</version>
   </parent>
 
   <artifactId>maven-resolver-api</artifactId>
diff --git a/maven-resolver-connector-basic/pom.xml b/maven-resolver-connector-basic/pom.xml
index e9061dd67..f7dff4654 100644
--- a/maven-resolver-connector-basic/pom.xml
+++ b/maven-resolver-connector-basic/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <groupId>org.apache.maven.resolver</groupId>
     <artifactId>maven-resolver</artifactId>
-    <version>1.9.17-SNAPSHOT</version>
+    <version>2.0.0-SNAPSHOT</version>
   </parent>
 
   <artifactId>maven-resolver-connector-basic</artifactId>
diff --git a/maven-resolver-demos/maven-resolver-demo-maven-plugin/pom.xml b/maven-resolver-demos/maven-resolver-demo-maven-plugin/pom.xml
index 15efba65a..620acbabd 100644
--- a/maven-resolver-demos/maven-resolver-demo-maven-plugin/pom.xml
+++ b/maven-resolver-demos/maven-resolver-demo-maven-plugin/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <groupId>org.apache.maven.resolver</groupId>
     <artifactId>maven-resolver-demos</artifactId>
-    <version>1.9.17-SNAPSHOT</version>
+    <version>2.0.0-SNAPSHOT</version>
   </parent>
 
   <artifactId>resolver-demo-maven-plugin</artifactId>
diff --git a/maven-resolver-demos/maven-resolver-demo-snippets/pom.xml b/maven-resolver-demos/maven-resolver-demo-snippets/pom.xml
index d36ccc2d1..bdc1dc2e8 100644
--- a/maven-resolver-demos/maven-resolver-demo-snippets/pom.xml
+++ b/maven-resolver-demos/maven-resolver-demo-snippets/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <groupId>org.apache.maven.resolver</groupId>
     <artifactId>maven-resolver-demos</artifactId>
-    <version>1.9.17-SNAPSHOT</version>
+    <version>2.0.0-SNAPSHOT</version>
   </parent>
 
   <artifactId>maven-resolver-demo-snippets</artifactId>
diff --git a/maven-resolver-demos/pom.xml b/maven-resolver-demos/pom.xml
index b1de669e9..9342a7961 100644
--- a/maven-resolver-demos/pom.xml
+++ b/maven-resolver-demos/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <groupId>org.apache.maven.resolver</groupId>
     <artifactId>maven-resolver</artifactId>
-    <version>1.9.17-SNAPSHOT</version>
+    <version>2.0.0-SNAPSHOT</version>
   </parent>
 
   <artifactId>maven-resolver-demos</artifactId>
diff --git a/maven-resolver-impl/pom.xml b/maven-resolver-impl/pom.xml
index 98bf1c8a1..64614cb9d 100644
--- a/maven-resolver-impl/pom.xml
+++ b/maven-resolver-impl/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <groupId>org.apache.maven.resolver</groupId>
     <artifactId>maven-resolver</artifactId>
-    <version>1.9.17-SNAPSHOT</version>
+    <version>2.0.0-SNAPSHOT</version>
   </parent>
 
   <artifactId>maven-resolver-impl</artifactId>
diff --git a/maven-resolver-named-locks-hazelcast/pom.xml b/maven-resolver-named-locks-hazelcast/pom.xml
index 3c9d32f42..074417c87 100644
--- a/maven-resolver-named-locks-hazelcast/pom.xml
+++ b/maven-resolver-named-locks-hazelcast/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <groupId>org.apache.maven.resolver</groupId>
     <artifactId>maven-resolver</artifactId>
-    <version>1.9.17-SNAPSHOT</version>
+    <version>2.0.0-SNAPSHOT</version>
   </parent>
 
   <artifactId>maven-resolver-named-locks-hazelcast</artifactId>
diff --git a/maven-resolver-named-locks-redisson/pom.xml b/maven-resolver-named-locks-redisson/pom.xml
index cf8840fd6..ef8aab3f0 100644
--- a/maven-resolver-named-locks-redisson/pom.xml
+++ b/maven-resolver-named-locks-redisson/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <groupId>org.apache.maven.resolver</groupId>
     <artifactId>maven-resolver</artifactId>
-    <version>1.9.17-SNAPSHOT</version>
+    <version>2.0.0-SNAPSHOT</version>
   </parent>
 
   <artifactId>maven-resolver-named-locks-redisson</artifactId>
diff --git a/maven-resolver-named-locks/pom.xml b/maven-resolver-named-locks/pom.xml
index 177d897d7..bb8f3dab2 100644
--- a/maven-resolver-named-locks/pom.xml
+++ b/maven-resolver-named-locks/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <groupId>org.apache.maven.resolver</groupId>
     <artifactId>maven-resolver</artifactId>
-    <version>1.9.17-SNAPSHOT</version>
+    <version>2.0.0-SNAPSHOT</version>
   </parent>
 
   <artifactId>maven-resolver-named-locks</artifactId>
diff --git a/maven-resolver-spi/pom.xml b/maven-resolver-spi/pom.xml
index af2c1fcf1..78bfe7ac9 100644
--- a/maven-resolver-spi/pom.xml
+++ b/maven-resolver-spi/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <groupId>org.apache.maven.resolver</groupId>
     <artifactId>maven-resolver</artifactId>
-    <version>1.9.17-SNAPSHOT</version>
+    <version>2.0.0-SNAPSHOT</version>
   </parent>
 
   <artifactId>maven-resolver-spi</artifactId>
diff --git a/maven-resolver-supplier/pom.xml b/maven-resolver-supplier/pom.xml
index e6e7c8c0a..fee4e6e2a 100644
--- a/maven-resolver-supplier/pom.xml
+++ b/maven-resolver-supplier/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <groupId>org.apache.maven.resolver</groupId>
     <artifactId>maven-resolver</artifactId>
-    <version>1.9.17-SNAPSHOT</version>
+    <version>2.0.0-SNAPSHOT</version>
   </parent>
 
   <artifactId>maven-resolver-supplier</artifactId>
diff --git a/maven-resolver-test-util/pom.xml b/maven-resolver-test-util/pom.xml
index 5a709dad5..5431cb1d7 100644
--- a/maven-resolver-test-util/pom.xml
+++ b/maven-resolver-test-util/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <groupId>org.apache.maven.resolver</groupId>
     <artifactId>maven-resolver</artifactId>
-    <version>1.9.17-SNAPSHOT</version>
+    <version>2.0.0-SNAPSHOT</version>
   </parent>
 
   <artifactId>maven-resolver-test-util</artifactId>
diff --git a/maven-resolver-transport-classpath/pom.xml b/maven-resolver-transport-classpath/pom.xml
index 694e85b6d..f49877505 100644
--- a/maven-resolver-transport-classpath/pom.xml
+++ b/maven-resolver-transport-classpath/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <groupId>org.apache.maven.resolver</groupId>
     <artifactId>maven-resolver</artifactId>
-    <version>1.9.17-SNAPSHOT</version>
+    <version>2.0.0-SNAPSHOT</version>
   </parent>
 
   <artifactId>maven-resolver-transport-classpath</artifactId>
diff --git a/maven-resolver-transport-file/pom.xml b/maven-resolver-transport-file/pom.xml
index 024591eff..89ce65de2 100644
--- a/maven-resolver-transport-file/pom.xml
+++ b/maven-resolver-transport-file/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <groupId>org.apache.maven.resolver</groupId>
     <artifactId>maven-resolver</artifactId>
-    <version>1.9.17-SNAPSHOT</version>
+    <version>2.0.0-SNAPSHOT</version>
   </parent>
 
   <artifactId>maven-resolver-transport-file</artifactId>
diff --git a/maven-resolver-transport-http/pom.xml b/maven-resolver-transport-http/pom.xml
index e087f0e7b..928c8305b 100644
--- a/maven-resolver-transport-http/pom.xml
+++ b/maven-resolver-transport-http/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <groupId>org.apache.maven.resolver</groupId>
     <artifactId>maven-resolver</artifactId>
-    <version>1.9.17-SNAPSHOT</version>
+    <version>2.0.0-SNAPSHOT</version>
   </parent>
 
   <artifactId>maven-resolver-transport-http</artifactId>
diff --git a/maven-resolver-transport-wagon/pom.xml b/maven-resolver-transport-wagon/pom.xml
index 5985df226..bb37726d8 100644
--- a/maven-resolver-transport-wagon/pom.xml
+++ b/maven-resolver-transport-wagon/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <groupId>org.apache.maven.resolver</groupId>
     <artifactId>maven-resolver</artifactId>
-    <version>1.9.17-SNAPSHOT</version>
+    <version>2.0.0-SNAPSHOT</version>
   </parent>
 
   <artifactId>maven-resolver-transport-wagon</artifactId>
diff --git a/maven-resolver-util/pom.xml b/maven-resolver-util/pom.xml
index cfaec8d0d..4ef5e8e8c 100644
--- a/maven-resolver-util/pom.xml
+++ b/maven-resolver-util/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <groupId>org.apache.maven.resolver</groupId>
     <artifactId>maven-resolver</artifactId>
-    <version>1.9.17-SNAPSHOT</version>
+    <version>2.0.0-SNAPSHOT</version>
   </parent>
 
   <artifactId>maven-resolver-util</artifactId>
diff --git a/pom.xml b/pom.xml
index 2538a4331..b04ff0f75 100644
--- a/pom.xml
+++ b/pom.xml
@@ -29,7 +29,7 @@
 
   <groupId>org.apache.maven.resolver</groupId>
   <artifactId>maven-resolver</artifactId>
-  <version>1.9.17-SNAPSHOT</version>
+  <version>2.0.0-SNAPSHOT</version>
   <packaging>pom</packaging>
 
   <name>Maven Artifact Resolver</name>
@@ -85,18 +85,19 @@
 
   <properties>
     <javaVersion>8</javaVersion>
+    <maven.compiler.release>${javaVersion}</maven.compiler.release>
     <surefire.redirectTestOutputToFile>true</surefire.redirectTestOutputToFile>
     <failsafe.redirectTestOutputToFile>${surefire.redirectTestOutputToFile}</failsafe.redirectTestOutputToFile>
     <maven.site.path>resolver-archives/resolver-LATEST</maven.site.path>
     <checkstyle.violation.ignore>None</checkstyle.violation.ignore>
-    <sisuVersion>0.3.5</sisuVersion>
-    <guiceVersion>5.1.0</guiceVersion>
+    <sisuVersion>0.9.0.M2</sisuVersion>
+    <guiceVersion>6.0.0</guiceVersion>
     <slf4jVersion>1.7.36</slf4jVersion>
     <!-- used by supplier and demo only -->
     <mavenVersion>3.9.5</mavenVersion>
-    <minimalMavenBuildVersion>[3.8.7,)</minimalMavenBuildVersion>
-    <minimalJavaBuildVersion>[1.8.0-362,)</minimalJavaBuildVersion>
-    <project.build.outputTimestamp>2023-09-22T18:13:46Z</project.build.outputTimestamp>
+    <minimalMavenBuildVersion>[3.8.8,)</minimalMavenBuildVersion>
+    <minimalJavaBuildVersion>[11.0.20,)</minimalJavaBuildVersion>
+    <project.build.outputTimestamp>2023-10-10T21:40:45Z</project.build.outputTimestamp>
   </properties>
 
   <dependencyManagement>
@@ -305,6 +306,27 @@
             </execution>
           </executions>
         </plugin>
+        <plugin>
+          <groupId>org.apache.maven.plugins</groupId>
+          <artifactId>maven-enforcer-plugin</artifactId>
+          <executions>
+            <execution>
+              <id>enforce-bytecode-version</id>
+              <goals>
+                <goal>enforce</goal>
+              </goals>
+              <configuration>
+                <rules>
+                  <enforceBytecodeVersion>
+                    <maxJdkVersion>${maven.compiler.release}</maxJdkVersion>
+                    <ignoredScopes>test</ignoredScopes>
+                  </enforceBytecodeVersion>
+                </rules>
+                <fail>true</fail>
+              </configuration>
+            </execution>
+          </executions>
+        </plugin>
         <plugin>
           <groupId>org.apache.maven.plugins</groupId>
           <artifactId>maven-javadoc-plugin</artifactId>
@@ -429,20 +451,6 @@
             </execution>
           </executions>
         </plugin>
-        <plugin>
-          <groupId>org.eclipse.sisu</groupId>
-          <artifactId>sisu-maven-plugin</artifactId>
-          <version>${sisuVersion}</version>
-          <executions>
-            <execution>
-              <id>generate-index</id>
-              <goals>
-                <goal>main-index</goal>
-              </goals>
-              <phase>process-classes</phase>
-            </execution>
-          </executions>
-        </plugin>
         <plugin>
           <groupId>org.apache.rat</groupId>
           <artifactId>apache-rat-plugin</artifactId>
@@ -486,29 +494,54 @@
             </archive>
           </configuration>
         </plugin>
+        <!-- Remove when Parent 41 used -->
+        <plugin>
+          <groupId>com.diffplug.spotless</groupId>
+          <artifactId>spotless-maven-plugin</artifactId>
+          <version>2.40.0</version>
+          <configuration>
+            <java>
+              <!-- orders of used formatters are important MPOM-376 -->
+              <!-- eg. palantir override importOrder, so should be first -->
+              <palantirJavaFormat>
+                <version>2.38.0</version>
+              </palantirJavaFormat>
+              <removeUnusedImports />
+              <importOrder>
+                <file>config/maven-eclipse-importorder.txt</file>
+              </importOrder>
+              <licenseHeader>
+                <file>config/maven-header-plain.txt</file>
+              </licenseHeader>
+            </java>
+            <pom>
+              <sortPom>
+                <expandEmptyElements>false</expandEmptyElements>
+                <!-- https://issues.apache.org/jira/browse/MRELEASE-1111 -->
+                <spaceBeforeCloseEmptyElement>true</spaceBeforeCloseEmptyElement>
+              </sortPom>
+            </pom>
+            <upToDateChecking>
+              <enabled>true</enabled>
+            </upToDateChecking>
+          </configuration>
+        </plugin>
       </plugins>
     </pluginManagement>
     <plugins>
       <plugin>
-        <groupId>org.codehaus.mojo</groupId>
-        <artifactId>animal-sniffer-maven-plugin</artifactId>
-        <version>1.23</version>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-compiler-plugin</artifactId>
         <configuration>
-          <signature>
-            <groupId>org.codehaus.mojo.signature</groupId>
-            <artifactId>java18</artifactId>
-            <version>1.0</version>
-          </signature>
+          <proc>none</proc>
+          <compilerArgs>
+            <compilerArg>-Xlint:deprecation</compilerArg>
+          </compilerArgs>
         </configuration>
-        <executions>
-          <execution>
-            <id>check-java-compat</id>
-            <goals>
-              <goal>check</goal>
-            </goals>
-            <phase>process-classes</phase>
-          </execution>
-        </executions>
+      </plugin>
+      <plugin>
+        <groupId>org.eclipse.sisu</groupId>
+        <artifactId>sisu-maven-plugin</artifactId>
       </plugin>
     </plugins>
   </build>
diff --git a/src/site/markdown/upgrading-resolver.md b/src/site/markdown/upgrading-resolver.md
new file mode 100644
index 000000000..454bbbefb
--- /dev/null
+++ b/src/site/markdown/upgrading-resolver.md
@@ -0,0 +1,26 @@
+# Upgrading Resolver (major versions)
+<!---
+ Licensed to the Apache Software Foundation (ASF) under one or more
+ contributor license agreements.  See the NOTICE file distributed with
+ this work for additional information regarding copyright ownership.
+ The ASF licenses this file to You under the Apache License, Version 2.0
+ (the "License"); you may not use this file except in compliance with
+ the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+
+This page will collect quick guides for developers upgrading from one to
+another major version of Resolver.
+
+# Upgrading from 1.x to 2.x
+
+Maven Resolver upcoming major version 2.x should be "smooth sailing", as long you
+do not depend (directly or indirectly) on **deprecated** classes from Resolver
+1.x line. Always use latest 1.x release to check for deprecated classes.
diff --git a/src/site/site.xml b/src/site/site.xml
index fdb5af531..d289dba5f 100644
--- a/src/site/site.xml
+++ b/src/site/site.xml
@@ -33,6 +33,7 @@ under the License.
       <item name="About Local Repository" href="local-repository.html"/>
       <item name="Remote Repository Filtering" href="remote-repository-filtering.html"/>
       <item name="Third-party Integrations" href="third-party-integrations.html"/>
+      <item name="Upgrading Resolver" href="upgrading-resolver.html"/>
       <item name="Maven 3.8.x" href="maven-3.8.x.html"/>
       <item name="JavaDocs" href="apidocs/index.html"/>
       <item name="Source Xref" href="xref/index.html"/>