diff --git a/.github/workflows/a2a-tck-test.yml b/.github/workflows/a2a-tck-test.yml
index b24e52c131..71683a936f 100644
--- a/.github/workflows/a2a-tck-test.yml
+++ b/.github/workflows/a2a-tck-test.yml
@@ -39,7 +39,7 @@ jobs:
           distribution: ${{ env.JAVA_DISTRIBUTION }}
 
       - name: Setup Gradle
-        uses: gradle/actions/setup-gradle@v5
+        uses: gradle/actions/setup-gradle@v6
 
       - name: Set up Python 3.12
         uses: actions/setup-python@v6
diff --git a/.github/workflows/build-xcframework.yml b/.github/workflows/build-xcframework.yml
index 8eefddb777..41589d2315 100644
--- a/.github/workflows/build-xcframework.yml
+++ b/.github/workflows/build-xcframework.yml
@@ -78,7 +78,7 @@ jobs:
           repositories: koog-spm
 
       - name: Setup Gradle
-        uses: gradle/actions/setup-gradle@v5
+        uses: gradle/actions/setup-gradle@v6
         with:
           cache-read-only: false
 
diff --git a/.github/workflows/checks.yml b/.github/workflows/checks.yml
index 901d383a9b..91f957a6be 100644
--- a/.github/workflows/checks.yml
+++ b/.github/workflows/checks.yml
@@ -65,7 +65,7 @@ jobs:
       # Configure Gradle for optimal use in GitHub Actions, including caching of downloaded dependencies.
       # See: https://github.com/gradle/actions/blob/main/setup-gradle/README.md
       - name: Setup Gradle
-        uses: gradle/actions/setup-gradle@v5
+        uses: gradle/actions/setup-gradle@v6
 
       - name: Assemble with Gradle Wrapper
         run: ./gradlew assemble ktlintCheck
@@ -132,7 +132,7 @@ jobs:
       # Configure Gradle for optimal use in GitHub Actions, including caching of downloaded dependencies.
       # See: https://github.com/gradle/actions/blob/main/setup-gradle/README.md
       - name: Setup Gradle
-        uses: gradle/actions/setup-gradle@v5
+        uses: gradle/actions/setup-gradle@v6
 
       - name: JvmTest with Gradle Wrapper and Kover coverage
         if: matrix.os == 'ubuntu-latest'
@@ -206,7 +206,7 @@ jobs:
         with:
           distribution: ${{ env.JAVA_DISTRIBUTION }}
           java-version: ${{ env.JAVA_VERSION }}
-      - uses: gradle/actions/setup-gradle@v5
+      - uses: gradle/actions/setup-gradle@v6
       - name: Verify code snippets in docs
         run: |
           echo "Starting knit generation..."
@@ -234,7 +234,7 @@ jobs:
         with:
           distribution: ${{ env.JAVA_DISTRIBUTION }}
           java-version: ${{ env.JAVA_VERSION }}
-      - uses: gradle/actions/setup-gradle@v5
+      - uses: gradle/actions/setup-gradle@v6
       - name: Generate API docs
         run: |
           ./gradlew dokkaGenerate
diff --git a/.github/workflows/code-agent-examples.yml b/.github/workflows/code-agent-examples.yml
index 9728a6ef0e..d8ad89ff3e 100644
--- a/.github/workflows/code-agent-examples.yml
+++ b/.github/workflows/code-agent-examples.yml
@@ -69,7 +69,7 @@ jobs:
       # Configure Gradle for optimal use in GitHub Actions, including caching of downloaded dependencies.
       # See: https://github.com/gradle/actions/blob/main/setup-gradle/README.md
       - name: Setup Gradle
-        uses: gradle/actions/setup-gradle@v5
+        uses: gradle/actions/setup-gradle@v6
         with:
           # Cache downloaded JDKs/konan in addition to the default directories.
           gradle-home-cache-includes: |
diff --git a/.github/workflows/demo-compose-app.yml b/.github/workflows/demo-compose-app.yml
index 0780297d9a..8819acad9b 100644
--- a/.github/workflows/demo-compose-app.yml
+++ b/.github/workflows/demo-compose-app.yml
@@ -47,7 +47,7 @@ jobs:
       # Configure Gradle for optimal use in GitHub Actions, including caching of downloaded dependencies.
       # See: https://github.com/gradle/actions/blob/main/setup-gradle/README.md
       - name: Setup Gradle
-        uses: gradle/actions/setup-gradle@v5
+        uses: gradle/actions/setup-gradle@v6
         with:
           # Cache downloaded JDKs/konan in addition to the default directories.
           gradle-home-cache-includes: |
diff --git a/.github/workflows/dependency-submission.yml b/.github/workflows/dependency-submission.yml
index a311872ebf..7a2f3f83ec 100644
--- a/.github/workflows/dependency-submission.yml
+++ b/.github/workflows/dependency-submission.yml
@@ -24,4 +24,4 @@ jobs:
           java-version: 21
           cache: 'gradle'
       - name: Generate and submit dependency graph
-        uses: gradle/actions/dependency-submission@v5
+        uses: gradle/actions/dependency-submission@v6
diff --git a/.github/workflows/heavy-tests.yml b/.github/workflows/heavy-tests.yml
index 62ac42972f..2ffead50b7 100644
--- a/.github/workflows/heavy-tests.yml
+++ b/.github/workflows/heavy-tests.yml
@@ -83,7 +83,7 @@ jobs:
       # Configure Gradle for optimal use in GitHub Actions, including caching of downloaded dependencies.
       # See: https://github.com/gradle/actions/blob/main/setup-gradle/README.md
       - name: Setup Gradle
-        uses: gradle/actions/setup-gradle@v5
+        uses: gradle/actions/setup-gradle@v6
 
       - name: Configure AWS credentials via OIDC
         uses: aws-actions/configure-aws-credentials@v6
diff --git a/.github/workflows/java-api-example.yml b/.github/workflows/java-api-example.yml
index 9bbf2e4aa2..b06c1ec00d 100644
--- a/.github/workflows/java-api-example.yml
+++ b/.github/workflows/java-api-example.yml
@@ -35,7 +35,7 @@ jobs:
       # Configure Gradle for optimal use in GitHub Actions, including caching of downloaded dependencies.
       # See: https://github.com/gradle/actions/blob/main/setup-gradle/README.md
       - name: Setup Gradle
-        uses: gradle/actions/setup-gradle@v5
+        uses: gradle/actions/setup-gradle@v6
 
       - name: Assemble
         working-directory: ./examples/koog-java-api-example
diff --git a/.github/workflows/javaone-2026.yml b/.github/workflows/javaone-2026.yml
index 7aaee7afe7..f56adef33b 100644
--- a/.github/workflows/javaone-2026.yml
+++ b/.github/workflows/javaone-2026.yml
@@ -35,7 +35,7 @@ jobs:
       # Configure Gradle for optimal use in GitHub Actions, including caching of downloaded dependencies.
       # See: https://github.com/gradle/actions/blob/main/setup-gradle/README.md
       - name: Setup Gradle
-        uses: gradle/actions/setup-gradle@v5
+        uses: gradle/actions/setup-gradle@v6
 
       - name: Assemble
         working-directory: ./examples/javaone-2026
diff --git a/.github/workflows/ollama-tests.yml b/.github/workflows/ollama-tests.yml
index 25ff88bdd7..d1a0a791a2 100644
--- a/.github/workflows/ollama-tests.yml
+++ b/.github/workflows/ollama-tests.yml
@@ -87,7 +87,7 @@ jobs:
       # Configure Gradle for optimal use in GitHub Actions, including caching of downloaded dependencies.
       # See: https://github.com/gradle/actions/blob/main/setup-gradle/README.md
       - name: Setup Gradle
-        uses: gradle/actions/setup-gradle@v5
+        uses: gradle/actions/setup-gradle@v6
 
       - name: Check disk space before tests
         run: |
diff --git a/.github/workflows/simple-examples-java.yml b/.github/workflows/simple-examples-java.yml
index 2eaf047b3a..65ec34b00c 100644
--- a/.github/workflows/simple-examples-java.yml
+++ b/.github/workflows/simple-examples-java.yml
@@ -57,7 +57,7 @@ jobs:
       # Configure Gradle for optimal use in GitHub Actions, including caching of downloaded dependencies.
       # See: https://github.com/gradle/actions/blob/main/setup-gradle/README.md
       - name: Setup Gradle
-        uses: gradle/actions/setup-gradle@v5
+        uses: gradle/actions/setup-gradle@v6
         with:
           # Cache downloaded JDKs/konan in addition to the default directories.
           gradle-home-cache-includes: |
@@ -94,7 +94,7 @@ jobs:
       # Configure Gradle for optimal use in GitHub Actions, including caching of downloaded dependencies.
       # See: https://github.com/gradle/actions/blob/main/setup-gradle/README.md
       - name: Setup Gradle
-        uses: gradle/actions/setup-gradle@v5
+        uses: gradle/actions/setup-gradle@v6
         with:
           # Cache downloaded JDKs/konan in addition to the default directories.
           gradle-home-cache-includes: |
diff --git a/.github/workflows/simple-examples.yml b/.github/workflows/simple-examples.yml
index 3de1d25a79..3265a13be6 100644
--- a/.github/workflows/simple-examples.yml
+++ b/.github/workflows/simple-examples.yml
@@ -57,7 +57,7 @@ jobs:
       # Configure Gradle for optimal use in GitHub Actions, including caching of downloaded dependencies.
       # See: https://github.com/gradle/actions/blob/main/setup-gradle/README.md
       - name: Setup Gradle
-        uses: gradle/actions/setup-gradle@v5
+        uses: gradle/actions/setup-gradle@v6
         with:
           # Cache downloaded JDKs/konan in addition to the default directories.
           gradle-home-cache-includes: |
@@ -94,7 +94,7 @@ jobs:
       # Configure Gradle for optimal use in GitHub Actions, including caching of downloaded dependencies.
       # See: https://github.com/gradle/actions/blob/main/setup-gradle/README.md
       - name: Setup Gradle
-        uses: gradle/actions/setup-gradle@v5
+        uses: gradle/actions/setup-gradle@v6
         with:
           # Cache downloaded JDKs/konan in addition to the default directories.
           gradle-home-cache-includes: |
diff --git a/.github/workflows/springio-example-kotlin.yml b/.github/workflows/springio-example-kotlin.yml
index e98a1e5b11..bdbdad26f6 100644
--- a/.github/workflows/springio-example-kotlin.yml
+++ b/.github/workflows/springio-example-kotlin.yml
@@ -35,7 +35,7 @@ jobs:
       # Configure Gradle for optimal use in GitHub Actions, including caching of downloaded dependencies.
       # See: https://github.com/gradle/actions/blob/main/setup-gradle/README.md
       - name: Setup Gradle
-        uses: gradle/actions/setup-gradle@v5
+        uses: gradle/actions/setup-gradle@v6
 
       - name: Assemble
         working-directory: ./examples/spring-io-2026/kotlin
diff --git a/.github/workflows/trip-planning-example.yml b/.github/workflows/trip-planning-example.yml
index 1e9e4d8c9f..5acc029fa6 100644
--- a/.github/workflows/trip-planning-example.yml
+++ b/.github/workflows/trip-planning-example.yml
@@ -34,7 +34,7 @@ jobs:
       # Configure Gradle for optimal use in GitHub Actions, including caching of downloaded dependencies.
       # See: https://github.com/gradle/actions/blob/main/setup-gradle/README.md
       - name: Setup Gradle
-        uses: gradle/actions/setup-gradle@v5
+        uses: gradle/actions/setup-gradle@v6
 
       - name: Assemble
         working-directory: ./examples/trip-planning-example