Bump versions after 8.18.3 release

Author: elasticsearchmachine

.buildkite/pipelines/intake.yml

@@ -65,7 +65,7 @@ steps:
         timeout_in_minutes: 300
         matrix:
           setup:
-            BWC_VERSION: ["8.17.9", "8.18.3", "8.19.0", "9.0.4", "9.1.0"]
+            BWC_VERSION: ["8.17.9", "8.18.4", "8.19.0", "9.0.4", "9.1.0"]
         agents:
           provider: gcp
           image: family/elasticsearch-ubuntu-2404

.buildkite/pipelines/periodic-packaging.yml

@@ -318,8 +318,8 @@ steps:
         env:
           BWC_VERSION: 8.17.9
 
-      - label: "{{matrix.image}} / 8.18.3 / packaging-tests-upgrade"
-        command: ./.ci/scripts/packaging-test.sh -Dbwc.checkout.align=true destructiveDistroUpgradeTest.v8.18.3
+      - label: "{{matrix.image}} / 8.18.4 / packaging-tests-upgrade"
+        command: ./.ci/scripts/packaging-test.sh -Dbwc.checkout.align=true destructiveDistroUpgradeTest.v8.18.4
         timeout_in_minutes: 300
         matrix:
           setup:
@@ -332,7 +332,7 @@ steps:
           machineType: custom-16-32768
           buildDirectory: /dev/shm/bk
         env:
-          BWC_VERSION: 8.18.3
+          BWC_VERSION: 8.18.4
 
       - label: "{{matrix.image}} / 8.19.0 / packaging-tests-upgrade"
         command: ./.ci/scripts/packaging-test.sh -Dbwc.checkout.align=true destructiveDistroUpgradeTest.v8.19.0

.buildkite/pipelines/periodic.yml

@@ -344,8 +344,8 @@ steps:
             - signal_reason: agent_stop
               limit: 3
 
-      - label: 8.18.3 / bwc
-        command: .ci/scripts/run-gradle.sh -Dbwc.checkout.align=true v8.18.3#bwcTest
+      - label: 8.18.4 / bwc
+        command: .ci/scripts/run-gradle.sh -Dbwc.checkout.align=true v8.18.4#bwcTest
         timeout_in_minutes: 300
         agents:
           provider: gcp
@@ -354,7 +354,7 @@ steps:
           buildDirectory: /dev/shm/bk
           preemptible: true
         env:
-          BWC_VERSION: 8.18.3
+          BWC_VERSION: 8.18.4
         retry:
           automatic:
             - exit_status: "-1"
@@ -487,7 +487,7 @@ steps:
           setup:
             ES_RUNTIME_JAVA:
               - openjdk21
-            BWC_VERSION: ["8.17.9", "8.18.3", "8.19.0", "9.0.4", "9.1.0"]
+            BWC_VERSION: ["8.17.9", "8.18.4", "8.19.0", "9.0.4", "9.1.0"]
         agents:
           provider: gcp
           image: family/elasticsearch-ubuntu-2404
@@ -531,7 +531,7 @@ steps:
             ES_RUNTIME_JAVA:
               - openjdk21
               - openjdk23
-            BWC_VERSION: ["8.17.9", "8.18.3", "8.19.0", "9.0.4", "9.1.0"]
+            BWC_VERSION: ["8.17.9", "8.18.4", "8.19.0", "9.0.4", "9.1.0"]
         agents:
           provider: gcp
           image: family/elasticsearch-ubuntu-2404

.ci/bwcVersions

@@ -17,7 +17,7 @@ BWC_VERSION:
   - "8.15.5"
   - "8.16.6"
   - "8.17.9"
-  - "8.18.3"
+  - "8.18.4"
   - "8.19.0"
   - "9.0.4"
   - "9.1.0"

.ci/snapshotBwcVersions

@@ -1,6 +1,6 @@
 BWC_VERSION:
   - "8.17.9"
-  - "8.18.3"
+  - "8.18.4"
   - "8.19.0"
   - "9.0.4"
   - "9.1.0"

server/src/main/java/org/elasticsearch/TransportVersions.java

@@ -147,6 +147,7 @@ static TransportVersion def(int id) {
     public static final TransportVersion INITIAL_ELASTICSEARCH_8_18_1 = def(8_840_0_03);
     public static final TransportVersion INITIAL_ELASTICSEARCH_8_18_2 = def(8_840_0_04);
     public static final TransportVersion INITIAL_ELASTICSEARCH_8_18_3 = def(8_840_0_05);
+    public static final TransportVersion INITIAL_ELASTICSEARCH_8_18_4 = def(8_840_0_06);
     public static final TransportVersion INITIAL_ELASTICSEARCH_8_19 = def(8_841_0_00);
     public static final TransportVersion COHERE_BIT_EMBEDDING_TYPE_SUPPORT_ADDED_BACKPORT_8_X = def(8_841_0_01);
     public static final TransportVersion REMOVE_ALL_APPLICABLE_SELECTOR_BACKPORT_8_19 = def(8_841_0_02);

server/src/main/java/org/elasticsearch/Version.java

@@ -209,6 +209,7 @@ public class Version implements VersionId<Version>, ToXContentFragment {
     public static final Version V_8_18_1 = new Version(8_18_01_99);
     public static final Version V_8_18_2 = new Version(8_18_02_99);
     public static final Version V_8_18_3 = new Version(8_18_03_99);
+    public static final Version V_8_18_4 = new Version(8_18_04_99);
     public static final Version V_8_19_0 = new Version(8_19_00_99);
     public static final Version V_9_0_0 = new Version(9_00_00_99);
     public static final Version V_9_0_1 = new Version(9_00_01_99);

server/src/main/resources/org/elasticsearch/TransportVersions.csv

@@ -152,6 +152,7 @@
 8.18.0,8840002
 8.18.1,8840003
 8.18.2,8840004
+8.18.3,8840005
 9.0.0,9000009
 9.0.1,9000010
 9.0.2,9000011

server/src/main/resources/org/elasticsearch/index/IndexVersions.csv

@@ -152,6 +152,7 @@
 8.18.0,8525000
 8.18.1,8525000
 8.18.2,8525000
+8.18.3,8525000
 9.0.0,9009000
 9.0.1,9009000
 9.0.2,9009000