Bump versions after 7.17.20 release

Author: brianseeders

.buildkite/pipelines/periodic-packaging.yml

@@ -448,8 +448,8 @@ steps:
         env:
           BWC_VERSION: 7.16.3
 
-      - label: "{{matrix.image}} / 7.17.19 / packaging-tests-upgrade"
-        command: ./.ci/scripts/packaging-test.sh -Dbwc.checkout.align=true destructiveDistroUpgradeTest.v7.17.19
+      - label: "{{matrix.image}} / 7.17.20 / packaging-tests-upgrade"
+        command: ./.ci/scripts/packaging-test.sh -Dbwc.checkout.align=true destructiveDistroUpgradeTest.v7.17.20
         timeout_in_minutes: 300
         matrix:
           setup:
@@ -462,7 +462,7 @@ steps:
           machineType: custom-16-32768
           buildDirectory: /dev/shm/bk
         env:
-          BWC_VERSION: 7.17.19
+          BWC_VERSION: 7.17.20
 
   - group: packaging-tests-windows
     steps:

.buildkite/pipelines/periodic.yml

@@ -262,16 +262,16 @@ steps:
           buildDirectory: /dev/shm/bk
         env:
           BWC_VERSION: 7.16.3
-      - label: 7.17.19 / bwc
-        command: .ci/scripts/run-gradle.sh -Dbwc.checkout.align=true v7.17.19#bwcTest
+      - label: 7.17.20 / bwc
+        command: .ci/scripts/run-gradle.sh -Dbwc.checkout.align=true v7.17.20#bwcTest
         timeout_in_minutes: 300
         agents:
           provider: gcp
           image: family/elasticsearch-ubuntu-2004
           machineType: n1-standard-32
           buildDirectory: /dev/shm/bk
         env:
-          BWC_VERSION: 7.17.19
+          BWC_VERSION: 7.17.20
   - label: encryption-at-rest
     command: .buildkite/scripts/encryption-at-rest.sh
     timeout_in_minutes: 420

.ci/bwcVersions

@@ -25,4 +25,4 @@ BWC_VERSION:
   - "7.14.2"
   - "7.15.2"
   - "7.16.3"
-  - "7.17.19"
+  - "7.17.20"

build-tools-internal/version.properties

@@ -1,4 +1,4 @@
-elasticsearch     = 7.17.20
+elasticsearch     = 7.17.21
 lucene            = 8.11.3
 
 bundled_jdk_vendor = openjdk

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

@@ -179,7 +179,8 @@ public class Version implements Comparable<Version>, ToXContentFragment {
     public static final Version V_7_17_18 = new Version(7_17_18_99, org.apache.lucene.util.Version.LUCENE_8_11_1);
     public static final Version V_7_17_19 = new Version(7_17_19_99, org.apache.lucene.util.Version.LUCENE_8_11_3);
     public static final Version V_7_17_20 = new Version(7_17_20_99, org.apache.lucene.util.Version.LUCENE_8_11_3);
-    public static final Version CURRENT = V_7_17_20;
+    public static final Version V_7_17_21 = new Version(7_17_21_99, org.apache.lucene.util.Version.LUCENE_8_11_3);
+    public static final Version CURRENT = V_7_17_21;
 
     private static final ImmutableOpenIntMap<Version> idToVersion;
     private static final ImmutableOpenMap<String, Version> stringToVersion;