diff --git a/.github/actions/setup-default-test-properties/test-properties.json b/.github/actions/setup-default-test-properties/test-properties.json
index efe66de8ee1e..6439492ba5a2 100644
--- a/.github/actions/setup-default-test-properties/test-properties.json
+++ b/.github/actions/setup-default-test-properties/test-properties.json
@@ -14,7 +14,7 @@
   },
   "JavaTestProperties": {
     "SUPPORTED_VERSIONS": ["8", "11", "17", "21"],
-    "FLINK_VERSIONS": ["1.15", "1.16", "1.17", "1.18", "1.19"],
+    "FLINK_VERSIONS": ["1.17", "1.18", "1.19"],
     "SPARK_VERSIONS": ["2", "3"]
   },
   "GoTestProperties": {
diff --git a/.github/workflows/beam_LoadTests_Java_GBK_Smoke.yml b/.github/workflows/beam_LoadTests_Java_GBK_Smoke.yml
index 6dea32d4f5a0..d3b6c38ce7ae 100644
--- a/.github/workflows/beam_LoadTests_Java_GBK_Smoke.yml
+++ b/.github/workflows/beam_LoadTests_Java_GBK_Smoke.yml
@@ -106,7 +106,7 @@ jobs:
           arguments: |
             --info \
             -PloadTest.mainClass=org.apache.beam.sdk.loadtests.GroupByKeyLoadTest \
-            -Prunner=:runners:flink:1.15 \
+            -Prunner=:runners:flink:1.19 \
             '-PloadTest.args=${{ env.beam_LoadTests_Java_GBK_Smoke_test_arguments_3 }}' \
       - name: run GroupByKey load test Spark
         uses: ./.github/actions/gradle-command-self-hosted-action
@@ -115,4 +115,4 @@ jobs:
           arguments: |
             -PloadTest.mainClass=org.apache.beam.sdk.loadtests.GroupByKeyLoadTest \
             -Prunner=:runners:spark:3 \
-            '-PloadTest.args=${{ env.beam_LoadTests_Java_GBK_Smoke_test_arguments_4 }}'
\ No newline at end of file
+            '-PloadTest.args=${{ env.beam_LoadTests_Java_GBK_Smoke_test_arguments_4 }}'
diff --git a/.github/workflows/beam_PostCommit_Java_Examples_Flink.yml b/.github/workflows/beam_PostCommit_Java_Examples_Flink.yml
index 4077b7be68fe..e42d6a88b8df 100644
--- a/.github/workflows/beam_PostCommit_Java_Examples_Flink.yml
+++ b/.github/workflows/beam_PostCommit_Java_Examples_Flink.yml
@@ -80,7 +80,7 @@ jobs:
       - name: run examplesIntegrationTest script
         uses: ./.github/actions/gradle-command-self-hosted-action
         with:
-          gradle-command: :runners:flink:1.15:examplesIntegrationTest
+          gradle-command: :runners:flink:1.19:examplesIntegrationTest
       - name: Archive JUnit Test Results
         uses: actions/upload-artifact@v4
         if: ${{ !success() }}
@@ -93,4 +93,4 @@ jobs:
         with:
           commit: '${{ env.prsha || env.GITHUB_SHA }}'
           comment_mode: ${{ github.event_name == 'issue_comment'  && 'always' || 'off' }}
-          files: '**/build/test-results/**/*.xml'
\ No newline at end of file
+          files: '**/build/test-results/**/*.xml'
diff --git a/.github/workflows/beam_PostCommit_Java_Nexmark_Flink.yml b/.github/workflows/beam_PostCommit_Java_Nexmark_Flink.yml
index 58b12b4e4530..ef69a2918196 100644
--- a/.github/workflows/beam_PostCommit_Java_Nexmark_Flink.yml
+++ b/.github/workflows/beam_PostCommit_Java_Nexmark_Flink.yml
@@ -102,7 +102,7 @@ jobs:
         with:
           gradle-command: :sdks:java:testing:nexmark:run
           arguments: |
-            -Pnexmark.runner=:runners:flink:1.15 \
+            -Pnexmark.runner=:runners:flink:1.19 \
              "${{ env.GRADLE_COMMAND_ARGUMENTS }} --streaming=${{ matrix.streaming }} --queryLanguage=${{ matrix.queryLanguage }}" \
       - name: run PostCommit Java Nexmark Flink (${{ matrix.streaming }}) script
         if: matrix.queryLanguage == 'none'
@@ -110,5 +110,5 @@ jobs:
         with:
           gradle-command: :sdks:java:testing:nexmark:run
           arguments: |
-            -Pnexmark.runner=:runners:flink:1.15 \
-            "${{ env.GRADLE_COMMAND_ARGUMENTS }}--streaming=${{ matrix.streaming }}"
\ No newline at end of file
+            -Pnexmark.runner=:runners:flink:1.19 \
+            "${{ env.GRADLE_COMMAND_ARGUMENTS }}--streaming=${{ matrix.streaming }}"
diff --git a/.github/workflows/beam_PostCommit_Java_PVR_Flink_Streaming.yml b/.github/workflows/beam_PostCommit_Java_PVR_Flink_Streaming.yml
index ff3cce441069..987be7789b29 100644
--- a/.github/workflows/beam_PostCommit_Java_PVR_Flink_Streaming.yml
+++ b/.github/workflows/beam_PostCommit_Java_PVR_Flink_Streaming.yml
@@ -77,7 +77,7 @@ jobs:
       - name: run PostCommit Java Flink PortableValidatesRunner Streaming script
         uses: ./.github/actions/gradle-command-self-hosted-action
         with:
-            gradle-command: runners:flink:1.15:job-server:validatesPortableRunnerStreaming
+            gradle-command: runners:flink:1.19:job-server:validatesPortableRunnerStreaming
       - name: Archive JUnit Test Results
         uses: actions/upload-artifact@v4
         if: ${{ !success() }}
@@ -90,4 +90,4 @@ jobs:
         with:
           commit: '${{ env.prsha || env.GITHUB_SHA }}'
           comment_mode: ${{ github.event_name == 'issue_comment'  && 'always' || 'off' }}
-          files: '**/build/test-results/**/*.xml'
\ No newline at end of file
+          files: '**/build/test-results/**/*.xml'
diff --git a/.github/workflows/beam_PostCommit_Java_ValidatesRunner_Flink_Java8.yml b/.github/workflows/beam_PostCommit_Java_ValidatesRunner_Flink_Java8.yml
index 15c99d7bfb37..c51c39987236 100644
--- a/.github/workflows/beam_PostCommit_Java_ValidatesRunner_Flink_Java8.yml
+++ b/.github/workflows/beam_PostCommit_Java_ValidatesRunner_Flink_Java8.yml
@@ -80,11 +80,11 @@ jobs:
             11
       - name: run jar Java8 script
         run: |
-          ./gradlew :runners:flink:1.15:jar :runners:flink:1.15:testJar
+          ./gradlew :runners:flink:1.19:jar :runners:flink:1.19:testJar
       - name: run validatesRunner Java8 script
         uses: ./.github/actions/gradle-command-self-hosted-action
         with:
-          gradle-command: :runners:flink:1.15:validatesRunner
+          gradle-command: :runners:flink:1.19:validatesRunner
           arguments: |
             -x shadowJar \
             -x shadowTestJar \
@@ -109,4 +109,4 @@ jobs:
           large_files: true
           commit: '${{ env.prsha || env.GITHUB_SHA }}'
           comment_mode: ${{ github.event_name == 'issue_comment'  && 'always' || 'off' }}
-          files: '**/build/test-results/**/*.xml'
\ No newline at end of file
+          files: '**/build/test-results/**/*.xml'
diff --git a/.github/workflows/beam_PostCommit_XVR_Flink.yml b/.github/workflows/beam_PostCommit_XVR_Flink.yml
index 5cde38d24244..1f1d7d863b7e 100644
--- a/.github/workflows/beam_PostCommit_XVR_Flink.yml
+++ b/.github/workflows/beam_PostCommit_XVR_Flink.yml
@@ -47,7 +47,7 @@ env:
   DEVELOCITY_ACCESS_KEY: ${{ secrets.GE_ACCESS_TOKEN }}
   GRADLE_ENTERPRISE_CACHE_USERNAME: ${{ secrets.GE_CACHE_USERNAME }}
   GRADLE_ENTERPRISE_CACHE_PASSWORD: ${{ secrets.GE_CACHE_PASSWORD }}
-  FlinkVersion: 1.15
+  FlinkVersion: 1.19
 
 jobs:
   beam_PostCommit_XVR_Flink:
@@ -110,4 +110,4 @@ jobs:
         with:
           commit: '${{ env.prsha || env.GITHUB_SHA }}'
           comment_mode: ${{ github.event_name == 'issue_comment'  && 'always' || 'off' }}
-          files: '**/build/test-results/**/*.xml'
\ No newline at end of file
+          files: '**/build/test-results/**/*.xml'
diff --git a/.github/workflows/beam_PreCommit_Java_PVR_Flink_Batch.yml b/.github/workflows/beam_PreCommit_Java_PVR_Flink_Batch.yml
index 7019e4799ace..b459c4625547 100644
--- a/.github/workflows/beam_PreCommit_Java_PVR_Flink_Batch.yml
+++ b/.github/workflows/beam_PreCommit_Java_PVR_Flink_Batch.yml
@@ -94,7 +94,7 @@ jobs:
       - name: run validatesPortableRunnerBatch script
         uses: ./.github/actions/gradle-command-self-hosted-action
         with:
-          gradle-command: :runners:flink:1.15:job-server:validatesPortableRunnerBatch
+          gradle-command: :runners:flink:1.19:job-server:validatesPortableRunnerBatch
         env:
           CLOUDSDK_CONFIG: ${{ env.KUBELET_GCLOUD_CONFIG_PATH }}
       - name: Archive JUnit Test Results
@@ -108,4 +108,4 @@ jobs:
         with:
           name: java-code-coverage-report
           path: "**/build/test-results/**/*.xml"
-# TODO: Investigate 'Max retries exceeded' issue with EnricoMi/publish-unit-test-result-action@v2.
\ No newline at end of file
+# TODO: Investigate 'Max retries exceeded' issue with EnricoMi/publish-unit-test-result-action@v2.
diff --git a/.github/workflows/beam_PreCommit_Java_PVR_Flink_Docker.yml b/.github/workflows/beam_PreCommit_Java_PVR_Flink_Docker.yml
index 3c16b57c9bce..5feb0270c68c 100644
--- a/.github/workflows/beam_PreCommit_Java_PVR_Flink_Docker.yml
+++ b/.github/workflows/beam_PreCommit_Java_PVR_Flink_Docker.yml
@@ -99,7 +99,7 @@ jobs:
       - name: run PreCommit Java PVR Flink Docker script
         uses: ./.github/actions/gradle-command-self-hosted-action
         with:
-          gradle-command: :runners:flink:1.15:job-server:validatesPortableRunnerDocker
+          gradle-command: :runners:flink:1.19:job-server:validatesPortableRunnerDocker
         env:
           CLOUDSDK_CONFIG: ${{ env.KUBELET_GCLOUD_CONFIG_PATH}}
       - name: Archive JUnit Test Results
@@ -114,4 +114,4 @@ jobs:
         with:
           commit: '${{ env.prsha || env.GITHUB_SHA }}'
           comment_mode: ${{ github.event_name == 'issue_comment'  && 'always' || 'off' }}
-          files: '**/build/test-results/**/*.xml'
\ No newline at end of file
+          files: '**/build/test-results/**/*.xml'