Bump versions after 9.1.7 release

Author: elasticsearchmachine

.buildkite/pipelines/intake.yml

@@ -65,7 +65,7 @@ steps:
         timeout_in_minutes: 300
         matrix:
           setup:
-            BWC_VERSION: ["8.19.8", "9.1.7", "9.2.1"]
+            BWC_VERSION: ["8.19.8", "9.1.8", "9.2.1"]
         agents:
           provider: gcp
           image: family/elasticsearch-ubuntu-2404

.buildkite/pipelines/periodic-java-ea.yml

@@ -404,8 +404,8 @@ steps:
             - signal_reason: agent_stop
               limit: 3
 
-      - label: 9.1.7 / bwc
-        command: .ci/scripts/run-gradle.sh -Druntime.java=$$JAVA_EA_VERSION -Dbwc.checkout.align=true v9.1.7#bwcTest
+      - label: 9.1.8 / bwc
+        command: .ci/scripts/run-gradle.sh -Druntime.java=$$JAVA_EA_VERSION -Dbwc.checkout.align=true v9.1.8#bwcTest
         timeout_in_minutes: 300
         agents:
           provider: gcp
@@ -414,7 +414,7 @@ steps:
           buildDirectory: /dev/shm/bk
           preemptible: true
         env:
-          BWC_VERSION: 9.1.7
+          BWC_VERSION: 9.1.8
         retry:
           automatic:
             - exit_status: "-1"
@@ -519,7 +519,7 @@ steps:
         timeout_in_minutes: 300
         matrix:
           setup:
-            BWC_VERSION: ["8.19.8", "9.1.7", "9.2.1"]
+            BWC_VERSION: ["8.19.8", "9.1.8", "9.2.1"]
         agents:
           provider: gcp
           image: family/elasticsearch-ubuntu-2404

.buildkite/pipelines/periodic-packaging.yml

@@ -366,8 +366,8 @@ steps:
         env:
           BWC_VERSION: 9.0.7
 
-      - label: "{{matrix.image}} / 9.1.7 / packaging-tests-upgrade"
-        command: ./.ci/scripts/packaging-test.sh -Dbwc.checkout.align=true destructiveDistroUpgradeTest.v9.1.7
+      - label: "{{matrix.image}} / 9.1.8 / packaging-tests-upgrade"
+        command: ./.ci/scripts/packaging-test.sh -Dbwc.checkout.align=true destructiveDistroUpgradeTest.v9.1.8
         timeout_in_minutes: 300
         matrix:
           setup:
@@ -380,7 +380,7 @@ steps:
           machineType: custom-16-32768
           buildDirectory: /dev/shm/bk
         env:
-          BWC_VERSION: 9.1.7
+          BWC_VERSION: 9.1.8
 
       - label: "{{matrix.image}} / 9.2.1 / packaging-tests-upgrade"
         command: ./.ci/scripts/packaging-test.sh -Dbwc.checkout.align=true destructiveDistroUpgradeTest.v9.2.1

.buildkite/pipelines/periodic.yml

@@ -401,8 +401,8 @@ steps:
             - signal_reason: agent_stop
               limit: 3
 
-      - label: 9.1.7 / bwc
-        command: .ci/scripts/run-gradle.sh --continue -Dbwc.checkout.align=true v9.1.7#bwcTest
+      - label: 9.1.8 / bwc
+        command: .ci/scripts/run-gradle.sh --continue -Dbwc.checkout.align=true v9.1.8#bwcTest
         timeout_in_minutes: 300
         agents:
           provider: gcp
@@ -411,7 +411,7 @@ steps:
           buildDirectory: /dev/shm/bk
           preemptible: true
         env:
-          BWC_VERSION: 9.1.7
+          BWC_VERSION: 9.1.8
         retry:
           automatic:
             - exit_status: "-1"
@@ -511,7 +511,7 @@ steps:
           setup:
             ES_RUNTIME_JAVA:
               - openjdk21
-            BWC_VERSION: ["8.19.8", "9.1.7", "9.2.1"]
+            BWC_VERSION: ["8.19.8", "9.1.8", "9.2.1"]
         agents:
           provider: gcp
           image: family/elasticsearch-ubuntu-2404
@@ -557,7 +557,7 @@ steps:
             ES_RUNTIME_JAVA:
               - openjdk21
               - openjdk23
-            BWC_VERSION: ["8.19.8", "9.1.7", "9.2.1"]
+            BWC_VERSION: ["8.19.8", "9.1.8", "9.2.1"]
         agents:
           provider: gcp
           image: family/elasticsearch-ubuntu-2404

.ci/bwcVersions

@@ -20,5 +20,5 @@ BWC_VERSION:
   - "8.18.8"
   - "8.19.8"
   - "9.0.7"
-  - "9.1.7"
+  - "9.1.8"
   - "9.2.1"

.ci/snapshotBwcVersions

@@ -1,4 +1,4 @@
 BWC_VERSION:
   - "8.19.8"
-  - "9.1.7"
+  - "9.1.8"
   - "9.2.1"

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

@@ -240,6 +240,7 @@ public class Version implements VersionId<Version>, ToXContentFragment {
     public static final Version V_9_1_5 = new Version(9_01_05_99);
     public static final Version V_9_1_6 = new Version(9_01_06_99);
     public static final Version V_9_1_7 = new Version(9_01_07_99);
+    public static final Version V_9_1_8 = new Version(9_01_08_99);
     public static final Version V_9_2_0 = new Version(9_02_00_99);
     public static final Version V_9_2_1 = new Version(9_02_01_99);
     public static final Version CURRENT = V_9_2_1;

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

@@ -184,4 +184,5 @@
 9.1.4,9112007
 9.1.5,9085000
 9.1.6,8840000
+9.1.7,8840000
 9.2.0,8840000

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

@@ -184,4 +184,5 @@
 9.1.4,9033000
 9.1.5,9033000
 9.1.6,9033000
+9.1.7,9033000
 9.2.0,9039001

server/src/main/resources/transport/definitions/unreferable/initial_9.1.8.csv

@@ -0,0 +1 @@
+9112013