Remove 8.19.0 version constant from 9.0

Author: mark-vieira

.buildkite/pipelines/intake.yml

@@ -56,7 +56,7 @@ steps:
         timeout_in_minutes: 300
         matrix:
           setup:
-            BWC_VERSION: ["8.16.4", "8.17.2", "8.18.0", "8.19.0", "9.0.0"]
+            BWC_VERSION: ["8.16.4", "8.17.2", "8.18.0", "9.0.0"]
         agents:
           provider: gcp
           image: family/elasticsearch-ubuntu-2004

.buildkite/pipelines/periodic-packaging.yml

@@ -335,22 +335,6 @@ steps:
         env:
           BWC_VERSION: 8.18.0
 
-      - label: "{{matrix.image}} / 8.19.0 / packaging-tests-upgrade"
-        command: ./.ci/scripts/packaging-test.sh -Dbwc.checkout.align=true destructiveDistroUpgradeTest.v8.19.0
-        timeout_in_minutes: 300
-        matrix:
-          setup:
-            image:
-              - rocky-8
-              - ubuntu-2004
-        agents:
-          provider: gcp
-          image: family/elasticsearch-{{matrix.image}}
-          machineType: custom-16-32768
-          buildDirectory: /dev/shm/bk
-        env:
-          BWC_VERSION: 8.19.0
-
       - label: "{{matrix.image}} / 9.0.0 / packaging-tests-upgrade"
         command: ./.ci/scripts/packaging-test.sh -Dbwc.checkout.align=true destructiveDistroUpgradeTest.v9.0.0
         timeout_in_minutes: 300

.buildkite/pipelines/periodic.yml

@@ -363,25 +363,6 @@ steps:
             - signal_reason: agent_stop
               limit: 3
 
-      - label: 8.19.0 / bwc
-        command: .ci/scripts/run-gradle.sh -Dbwc.checkout.align=true v8.19.0#bwcTest
-        timeout_in_minutes: 300
-        agents:
-          provider: gcp
-          image: family/elasticsearch-ubuntu-2004
-          machineType: n1-standard-32
-          buildDirectory: /dev/shm/bk
-          preemptible: true
-        env:
-          BWC_VERSION: 8.19.0
-        retry:
-          automatic:
-            - exit_status: "-1"
-              limit: 3
-              signal_reason: none
-            - signal_reason: agent_stop
-              limit: 3
-
       - label: 9.0.0 / bwc
         command: .ci/scripts/run-gradle.sh -Dbwc.checkout.align=true v9.0.0#bwcTest
         timeout_in_minutes: 300
@@ -467,7 +448,7 @@ steps:
           setup:
             ES_RUNTIME_JAVA:
               - openjdk21
-            BWC_VERSION: ["8.16.4", "8.17.2", "8.18.0", "8.19.0", "9.0.0"]
+            BWC_VERSION: ["8.16.4", "8.17.2", "8.18.0", "9.0.0"]
         agents:
           provider: gcp
           image: family/elasticsearch-ubuntu-2004
@@ -509,7 +490,7 @@ steps:
             ES_RUNTIME_JAVA:
               - openjdk21
               - openjdk23
-            BWC_VERSION: ["8.16.4", "8.17.2", "8.18.0", "8.19.0", "9.0.0"]
+            BWC_VERSION: ["8.16.4", "8.17.2", "8.18.0", "9.0.0"]
         agents:
           provider: gcp
           image: family/elasticsearch-ubuntu-2004

.ci/bwcVersions

@@ -18,5 +18,4 @@ BWC_VERSION:
   - "8.16.4"
   - "8.17.2"
   - "8.18.0"
-  - "8.19.0"
   - "9.0.0"

.ci/snapshotBwcVersions

@@ -2,5 +2,4 @@ BWC_VERSION:
   - "8.16.4"
   - "8.17.2"
   - "8.18.0"
-  - "8.19.0"
   - "9.0.0"

branches.json

@@ -13,9 +13,6 @@
     {
       "branch": "8.17"
     },
-    {
-      "branch": "8.x"
-    },
     {
       "branch": "7.17"
     }

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

@@ -197,7 +197,6 @@ public class Version implements VersionId<Version>, ToXContentFragment {
     public static final Version V_8_17_1 = new Version(8_17_01_99);
     public static final Version V_8_17_2 = new Version(8_17_02_99);
     public static final Version V_8_18_0 = new Version(8_18_00_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 CURRENT = V_9_0_0;