diff --git a/.github/workflows/pipeline.yml b/.github/workflows/pipeline.yml
index d59702cae..85aea5501 100644
--- a/.github/workflows/pipeline.yml
+++ b/.github/workflows/pipeline.yml
@@ -15,7 +15,7 @@ jobs:
     name: Java 1.6
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - name: Setup java
         uses: actions/setup-java@v1
         with:
@@ -30,7 +30,7 @@ jobs:
           jar cvf target/org.json.jar -C target/classes .
       - name: Upload JAR 1.6
         if: ${{ always() }}
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           name: Create java 1.6 JAR
           path: target/*.jar
@@ -45,9 +45,9 @@ jobs:
         java: [ 8 ]
     name: Java ${{ matrix.java }}
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v5
       - name: Set up JDK ${{ matrix.java }}
-        uses: actions/setup-java@v3
+        uses: actions/setup-java@v5
         with:
           distribution: 'temurin'
           java-version: ${{ matrix.java }}
@@ -64,13 +64,13 @@ jobs:
           mvn site -D generateReports=false -D maven.compiler.source=${{ matrix.java }} -D maven.compiler.target=${{ matrix.java }}
       - name: Upload Test Results ${{ matrix.java }}
         if: ${{ always() }}
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           name: Test Results ${{ matrix.java }}
           path: target/surefire-reports/
       - name: Upload Test Report ${{ matrix.java }}
         if: ${{ always() }}
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           name: Test Report ${{ matrix.java }}
           path: target/site/
@@ -78,7 +78,7 @@ jobs:
         run: mvn clean package -D maven.compiler.source=${{ matrix.java }} -D maven.compiler.target=${{ matrix.java }} -D maven.test.skip=true -D maven.site.skip=true
       - name: Upload Package Results ${{ matrix.java }}
         if: ${{ always() }}
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           name: Package Jar ${{ matrix.java }}
           path: target/*.jar
@@ -93,9 +93,9 @@ jobs:
         java: [ 11 ]
     name: Java ${{ matrix.java }}
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v5
       - name: Set up JDK ${{ matrix.java }}
-        uses: actions/setup-java@v3
+        uses: actions/setup-java@v5
         with:
           distribution: 'temurin'
           java-version: ${{ matrix.java }}
@@ -112,13 +112,13 @@ jobs:
           mvn site -D generateReports=false -D maven.compiler.source=${{ matrix.java }} -D maven.compiler.target=${{ matrix.java }}
       - name: Upload Test Results ${{ matrix.java }}
         if: ${{ always() }}
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           name: Test Results ${{ matrix.java }}
           path: target/surefire-reports/
       - name: Upload Test Report ${{ matrix.java }}
         if: ${{ always() }}
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           name: Test Report ${{ matrix.java }}
           path: target/site/
@@ -126,7 +126,7 @@ jobs:
         run: mvn clean package -D maven.compiler.source=${{ matrix.java }} -D maven.compiler.target=${{ matrix.java }} -D maven.test.skip=true -D maven.site.skip=true
       - name: Upload Package Results ${{ matrix.java }}
         if: ${{ always() }}
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           name: Package Jar ${{ matrix.java }}
           path: target/*.jar
@@ -141,9 +141,9 @@ jobs:
         java: [ 17 ]
     name: Java ${{ matrix.java }}
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v5
       - name: Set up JDK ${{ matrix.java }}
-        uses: actions/setup-java@v3
+        uses: actions/setup-java@v5
         with:
           distribution: 'temurin'
           java-version: ${{ matrix.java }}
@@ -160,13 +160,13 @@ jobs:
           mvn site -D generateReports=false -D maven.compiler.source=${{ matrix.java }} -D maven.compiler.target=${{ matrix.java }}
       - name: Upload Test Results ${{ matrix.java }}
         if: ${{ always() }}
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           name: Test Results ${{ matrix.java }}
           path: target/surefire-reports/
       - name: Upload Test Report ${{ matrix.java }}
         if: ${{ always() }}
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           name: Test Report ${{ matrix.java }}
           path: target/site/
@@ -174,7 +174,7 @@ jobs:
         run: mvn clean package -D maven.compiler.source=${{ matrix.java }} -D maven.compiler.target=${{ matrix.java }} -D maven.test.skip=true -D maven.site.skip=true
       - name: Upload Package Results ${{ matrix.java }}
         if: ${{ always() }}
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           name: Package Jar ${{ matrix.java }}
           path: target/*.jar
@@ -189,9 +189,9 @@ jobs:
         java: [ 21 ]
     name: Java ${{ matrix.java }}
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v5
       - name: Set up JDK ${{ matrix.java }}
-        uses: actions/setup-java@v3
+        uses: actions/setup-java@v5
         with:
           distribution: 'temurin'
           java-version: ${{ matrix.java }}
@@ -208,13 +208,13 @@ jobs:
           mvn site -D generateReports=false -D maven.compiler.source=${{ matrix.java }} -D maven.compiler.target=${{ matrix.java }}
       - name: Upload Test Results ${{ matrix.java }}
         if: ${{ always() }}
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           name: Test Results ${{ matrix.java }}
           path: target/surefire-reports/
       - name: Upload Test Report ${{ matrix.java }}
         if: ${{ always() }}
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           name: Test Report ${{ matrix.java }}
           path: target/site/
@@ -222,7 +222,56 @@ jobs:
         run: mvn clean package -D maven.compiler.source=${{ matrix.java }} -D maven.compiler.target=${{ matrix.java }} -D maven.test.skip=true -D maven.site.skip=true
       - name: Upload Package Results ${{ matrix.java }}
         if: ${{ always() }}
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           name: Package Jar ${{ matrix.java }}
           path: target/*.jar
+
+  build-25:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      max-parallel: 1
+      matrix:
+        # build against supported Java LTS versions:
+        java: [ 25 ]
+    name: Java ${{ matrix.java }}
+    steps:
+      - uses: actions/checkout@v5
+      - name: Set up JDK ${{ matrix.java }}
+        uses: actions/setup-java@v5
+        with:
+          distribution: 'temurin'
+          java-version: ${{ matrix.java }}
+          cache: 'maven'
+      - name: Compile Java ${{ matrix.java }}
+        run: mvn clean compile -D maven.compiler.source=${{ matrix.java }} -D maven.compiler.target=${{ matrix.java }} -D maven.test.skip=true -D maven.site.skip=true -D maven.javadoc.skip=true
+      - name: Run Tests ${{ matrix.java }}
+        run: |
+          mvn test -D maven.compiler.source=${{ matrix.java }} -D maven.compiler.target=${{ matrix.java }}
+      - name: Build Test Report ${{ matrix.java }}
+        if: ${{ always() }}
+        run: |
+          mvn surefire-report:report-only -D maven.compiler.source=${{ matrix.java }} -D maven.compiler.target=${{ matrix.java }}
+          mvn site -D generateReports=false -D maven.compiler.source=${{ matrix.java }} -D maven.compiler.target=${{ matrix.java }}
+      - name: Upload Test Results ${{ matrix.java }}
+        if: ${{ always() }}
+        uses: actions/upload-artifact@v5
+        with:
+          name: Test Results ${{ matrix.java }}
+          path: target/surefire-reports/
+      - name: Upload Test Report ${{ matrix.java }}
+        if: ${{ always() }}
+        uses: actions/upload-artifact@v5
+        with:
+          name: Test Report ${{ matrix.java }}
+          path: target/site/
+      - name: Package Jar ${{ matrix.java }}
+        run: mvn clean package -D maven.compiler.source=${{ matrix.java }} -D maven.compiler.target=${{ matrix.java }} -D maven.test.skip=true -D maven.site.skip=true
+      - name: Upload Package Results ${{ matrix.java }}
+        if: ${{ always() }}
+        uses: actions/upload-artifact@v5
+        with:
+          name: Package Jar ${{ matrix.java }}
+          path: target/*.jar
+
diff --git a/README.md b/README.md
index 28f71971e..994e7f675 100644
--- a/README.md
+++ b/README.md
@@ -26,7 +26,7 @@ Project goals include:
 * No external dependencies
 * Fast execution and low memory footprint
 * Maintain backward compatibility
-* Designed and tested to use on Java versions 1.6 - 21
+* Designed and tested to use on Java versions 1.6 - 25
 
 
 The files in this package implement JSON encoders and decoders. The package can also convert between JSON and XML, HTTP headers, Cookies, and CDL.