diff --git a/.buildkite/pipelines/intake.yml b/.buildkite/pipelines/intake.yml
index 0b156ae9b1658..767c55601076b 100644
--- a/.buildkite/pipelines/intake.yml
+++ b/.buildkite/pipelines/intake.yml
@@ -56,7 +56,7 @@ steps:
         timeout_in_minutes: 300
         matrix:
           setup:
-            BWC_VERSION: ["7.17.30", "8.17.11", "8.18.6"]
+            BWC_VERSION: ["7.17.30", "8.18.6"]
         agents:
           provider: gcp
           image: family/elasticsearch-ubuntu-2404
diff --git a/.buildkite/pipelines/periodic-packaging.yml b/.buildkite/pipelines/periodic-packaging.yml
index 65dff3322aa3f..ac086bc44af27 100644
--- a/.buildkite/pipelines/periodic-packaging.yml
+++ b/.buildkite/pipelines/periodic-packaging.yml
@@ -593,8 +593,8 @@ steps:
         env:
           BWC_VERSION: 8.16.6
 
-      - label: "{{matrix.image}} / 8.17.11 / packaging-tests-upgrade"
-        command: ./.ci/scripts/packaging-test.sh -Dbwc.checkout.align=true destructiveDistroUpgradeTest.v8.17.11
+      - label: "{{matrix.image}} / 8.17.10 / packaging-tests-upgrade"
+        command: ./.ci/scripts/packaging-test.sh -Dbwc.checkout.align=true destructiveDistroUpgradeTest.v8.17.10
         timeout_in_minutes: 300
         matrix:
           setup:
@@ -607,7 +607,7 @@ steps:
           machineType: custom-16-32768
           buildDirectory: /dev/shm/bk
         env:
-          BWC_VERSION: 8.17.11
+          BWC_VERSION: 8.17.10
 
       - label: "{{matrix.image}} / 8.18.6 / packaging-tests-upgrade"
         command: ./.ci/scripts/packaging-test.sh -Dbwc.checkout.align=true destructiveDistroUpgradeTest.v8.18.6
diff --git a/.buildkite/pipelines/periodic.yml b/.buildkite/pipelines/periodic.yml
index add5f37f72723..34597f1835cd7 100644
--- a/.buildkite/pipelines/periodic.yml
+++ b/.buildkite/pipelines/periodic.yml
@@ -667,8 +667,8 @@ steps:
             - signal_reason: agent_stop
               limit: 3
 
-      - label: 8.17.11 / bwc
-        command: .ci/scripts/run-gradle.sh -Dbwc.checkout.align=true v8.17.11#bwcTest
+      - label: 8.17.10 / bwc
+        command: .ci/scripts/run-gradle.sh -Dbwc.checkout.align=true v8.17.10#bwcTest
         timeout_in_minutes: 300
         agents:
           provider: gcp
@@ -677,7 +677,7 @@ steps:
           buildDirectory: /dev/shm/bk
           preemptible: true
         env:
-          BWC_VERSION: 8.17.11
+          BWC_VERSION: 8.17.10
         retry:
           automatic:
             - exit_status: "-1"
@@ -771,7 +771,7 @@ steps:
           setup:
             ES_RUNTIME_JAVA:
               - openjdk17
-            BWC_VERSION: ["7.17.30", "8.17.11", "8.18.6"]
+            BWC_VERSION: ["7.17.30", "8.18.6"]
         agents:
           provider: gcp
           image: family/elasticsearch-ubuntu-2404
@@ -819,7 +819,7 @@ steps:
               - openjdk21
               - openjdk22
               - openjdk23
-            BWC_VERSION: ["7.17.30", "8.17.11", "8.18.6"]
+            BWC_VERSION: ["7.17.30", "8.18.6"]
         agents:
           provider: gcp
           image: family/elasticsearch-ubuntu-2404
diff --git a/.ci/bwcVersions b/.ci/bwcVersions
index 7e8e1cc657b7b..4aeffe7fecdbf 100644
--- a/.ci/bwcVersions
+++ b/.ci/bwcVersions
@@ -34,5 +34,5 @@ BWC_VERSION:
   - "8.14.3"
   - "8.15.5"
   - "8.16.6"
-  - "8.17.11"
+  - "8.17.10"
   - "8.18.6"
diff --git a/.ci/snapshotBwcVersions b/.ci/snapshotBwcVersions
index 70a6a8f823de9..b5c4848171251 100644
--- a/.ci/snapshotBwcVersions
+++ b/.ci/snapshotBwcVersions
@@ -1,4 +1,3 @@
 BWC_VERSION:
   - "7.17.30"
-  - "8.17.11"
   - "8.18.6"
diff --git a/branches.json b/branches.json
index 0a515b259cc63..ee07b8e3bb331 100644
--- a/branches.json
+++ b/branches.json
@@ -13,9 +13,6 @@
     {
       "branch": "8.18"
     },
-    {
-      "branch": "8.17"
-    },
     {
       "branch": "7.17"
     }
diff --git a/server/src/main/java/org/elasticsearch/Version.java b/server/src/main/java/org/elasticsearch/Version.java
index a0df75c80d137..1f25c21784c2d 100644
--- a/server/src/main/java/org/elasticsearch/Version.java
+++ b/server/src/main/java/org/elasticsearch/Version.java
@@ -211,7 +211,6 @@ public class Version implements VersionId<Version>, ToXContentFragment {
     public static final Version V_8_17_8 = new Version(8_17_08_99);
     public static final Version V_8_17_9 = new Version(8_17_09_99);
     public static final Version V_8_17_10 = new Version(8_17_10_99);
-    public static final Version V_8_17_11 = new Version(8_17_11_99);
     public static final Version V_8_18_0 = new Version(8_18_00_99);
     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);