diff --git a/.ci/environments/quarkus-lts/before.sh b/.ci/environments/quarkus-lts/before.sh
deleted file mode 100755
index a14e406f43..0000000000
--- a/.ci/environments/quarkus-lts/before.sh
+++ /dev/null
@@ -1,25 +0,0 @@
-#!/bin/bash
-#
-# 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.
-#
-
-set -euo pipefail
-
-script_dir_path=$(cd `dirname "${BASH_SOURCE[0]}"`; pwd -P)
-
-"${script_dir_path}"/../common/update_quarkus.sh
diff --git a/.ci/jenkins/config/branch.yaml b/.ci/jenkins/config/branch.yaml
index bd75004222..6b9553f627 100644
--- a/.ci/jenkins/config/branch.yaml
+++ b/.ci/jenkins/config/branch.yaml
@@ -1,3 +1,20 @@
+generation_config:
+  missing_environments: ignore
+
+job_types:
+  setup_branch:
+    disabled: true
+  nightly:
+    disabled: false
+  other:
+    disabled: true
+  pullrequest:
+    disabled: false
+  release:
+    disabled: true
+  tools:
+    disabled: true
+
 environments:
   native:
     env_vars:
@@ -17,27 +34,6 @@ environments:
       QUARKUS_BRANCH: '2.16'
     ids:
     - quarkus
-  quarkus-lts:
-    pull_request_default_check: false
-    env_vars:
-      BUILD_MVN_OPTS: -Dproductized
-      QUARKUS_BRANCH: '2.13'
-    ids:
-    - quarkus
-    - lts
-    - prod
-  native-lts:
-    env_vars:
-      NATIVE: true
-      BUILD_MVN_OPTS: -Dproductized
-      BUILD_MVN_OPTS_CURRENT: -Dnative -Dquarkus.native.container-build=true
-      QUARKUS_BRANCH: '2.13'
-      QUARKUS_NATIVE_BUILDER_IMAGE: mandrel
-      ADDITIONAL_TIMEOUT: 720
-    ids:
-    - native
-    - prod
-    - lts
   ecosystem:
     auto_generation: false
     ids:
@@ -100,5 +96,5 @@ jenkins:
   email_creds_id: OPTAPLANNER_CI_EMAIL
   default_tools:
     jdk: kie-jdk17
-    maven: kie-maven-3.8.7
+    maven: kie-maven-3.9.3
     sonar_jdk: kie-jdk17
diff --git a/.ci/jenkins/dsl/jobs.groovy b/.ci/jenkins/dsl/jobs.groovy
index 0eb0400189..a2faab85d0 100644
--- a/.ci/jenkins/dsl/jobs.groovy
+++ b/.ci/jenkins/dsl/jobs.groovy
@@ -219,12 +219,12 @@ setupDeployJob(JobType.NIGHTLY)
 setupSpecificBuildChainNightlyJob('native')
 setupSpecificBuildChainNightlyJob('quarkus-main')
 setupSpecificBuildChainNightlyJob('quarkus-branch')
-setupSpecificBuildChainNightlyJob('quarkus-lts')
-setupSpecificBuildChainNightlyJob('native-lts')
+//setupSpecificBuildChainNightlyJob('quarkus-lts')
+//setupSpecificBuildChainNightlyJob('native-lts')
 
 // Release jobs
-setupDeployJob(JobType.RELEASE)
-setupPromoteJob(JobType.RELEASE)
+//setupDeployJob(JobType.RELEASE)
+//setupPromoteJob(JobType.RELEASE)
 
 if (Utils.isMainBranch(this)) {
     setupOptaPlannerTurtleTestsJob('drools')
diff --git a/.github/dependabot.yml b/.github/dependabot.yml
index 4f2706c8c5..93ade56127 100644
--- a/.github/dependabot.yml
+++ b/.github/dependabot.yml
@@ -1,14 +1,5 @@
 version: 2
 updates:
-- package-ecosystem: maven
-  directory: "/"
-  schedule:
-    interval: daily
-    time: '03:00'
-  open-pull-requests-limit: 0
-  target-branch: "main"
-  commit-message:
-    prefix: "[bot]"
 - package-ecosystem: maven
   directory: "/"
   schedule:
diff --git a/.github/pull_request_template.md b/.github/pull_request_template.md
index b76b3608fa..d4313e5d4a 100644
--- a/.github/pull_request_template.md
+++ b/.github/pull_request_template.md
@@ -78,14 +78,6 @@ How to retest this PR or trigger a specific build:
   Run checks against Quarkus main branch  
   Please add comment: <b>Jenkins (re)run [optaplanner|optaplanner-quickstarts] quarkus-branch</b>
 
-- for <b>quarkus lts checks</b>  
-  Run checks against Quarkus lts branch  
-  Please add comment: <b>Jenkins run quarkus-lts</b>
-
-- for a <b>specific quarkus lts check</b>  
-  Run checks against Quarkus lts branch  
-  Please add comment: <b>Jenkins (re)run [optaplanner|optaplanner-quickstarts] quarkus-lts</b>
-
 - for <b>native checks</b>  
   Run native checks  
   Please add comment: <b>Jenkins run native</b>
@@ -94,14 +86,6 @@ How to retest this PR or trigger a specific build:
   Run native checks 
   Please add comment: <b>Jenkins (re)run [optaplanner|optaplanner-quickstarts] native</b>
 
-- for <b>native lts checks</b>  
-  Run native checks against quarkus lts branch
-  Please add comment: <b>Jenkins run native-lts</b>
-
-- for a <b>specific native lts check</b>  
-  Run native checks against quarkus lts branch
-  Please add comment: <b>Jenkins (re)run [optaplanner|optaplanner-quickstarts] native-lts</b>
-
 </details>
 
 ### CI Status
diff --git a/.github/workflows/full-downstream.yml b/.github/workflows/full-downstream.yml
index edb2bc13f1..55e1ae5c3c 100644
--- a/.github/workflows/full-downstream.yml
+++ b/.github/workflows/full-downstream.yml
@@ -22,8 +22,8 @@ jobs:
     strategy:
       matrix:
         os: [ ubuntu-latest ]
-        java-version: [ 11 ]
-        maven-version: [ '3.8.7' ]
+        java-version: [ 17 ]
+        maven-version: [ '3.9.3' ]
       fail-fast: false
     runs-on: ${{ matrix.os }}
     name: ${{ matrix.os }} - Java ${{ matrix.java-version }} - Maven
diff --git a/.github/workflows/optaplanner-9.yml b/.github/workflows/optaplanner-9.yml
index dd944c6242..6cdcd91b55 100644
--- a/.github/workflows/optaplanner-9.yml
+++ b/.github/workflows/optaplanner-9.yml
@@ -25,7 +25,7 @@ jobs:
       matrix:
         os: [ ubuntu-latest ]
         java-version: [ 17 ]
-        maven-version: [ '3.8.7' ]
+        maven-version: [ '3.9.3' ]
       fail-fast: false
     runs-on: ${{ matrix.os }}
 
@@ -42,7 +42,5 @@ jobs:
           maven-version: ${{ matrix.maven-version }}
           cache-key-prefix: ${{ runner.os }}-${{ matrix.java-version }}-maven${{ matrix.maven-version }}
 
-      - name: Migrate to 9
-        run: ./build/8-to-9-migration/migrate.sh --no-version-upgrade --no-commit
       - name: Build with Maven
         run: mvn -B --fail-at-end clean install -Dfull -Dformatter.skip
diff --git a/.github/workflows/pull_request.yml b/.github/workflows/pull_request.yml
index c64e99628f..e6063136d3 100644
--- a/.github/workflows/pull_request.yml
+++ b/.github/workflows/pull_request.yml
@@ -29,7 +29,7 @@ jobs:
       matrix:
         os: [ubuntu-latest, windows-latest]
         java-version: [ 11, 17, 20 ]
-        maven-version: [ '3.8.7' ]
+        maven-version: [ '3.9.3' ]
       fail-fast: false
     runs-on: ${{ matrix.os }}
     name: ${{ matrix.os }} - Java ${{ matrix.java-version }} - Maven
diff --git a/.github/workflows/quarkus-snapshot.yml b/.github/workflows/quarkus-snapshot.yml
index e6f6d3d633..ad6bf19fdb 100644
--- a/.github/workflows/quarkus-snapshot.yml
+++ b/.github/workflows/quarkus-snapshot.yml
@@ -21,8 +21,8 @@ jobs:
     strategy:
       matrix:
         os: [ ubuntu-latest ]
-        java-version: [ 11 ]
-        maven-version: [ '3.8.7' ]
+        java-version: [ 17 ]
+        maven-version: [ '3.9.3' ]
       fail-fast: false
     runs-on: ${{ matrix.os }}
     if: github.actor == 'quarkusbot'