diff --git a/.github/workflows/integration-bun-deno.yml b/.github/workflows/integration-bun-deno.yml
new file mode 100644
index 00000000..b5be8cc1
--- /dev/null
+++ b/.github/workflows/integration-bun-deno.yml
@@ -0,0 +1,168 @@
+name: Bun and Deno Integration Tests
+
+on:
+  push:
+    branches: [trunk] 
+  workflow_dispatch:
+
+permissions:
+  contents: read
+  actions: read
+  checks: write
+
+jobs:
+  integration-tests:
+    name: Integration (${{ matrix.RUNTIME }}, Cassandra ${{ matrix.SERVER_VERSION }})
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        RUNTIME: ["bun", "deno"]
+        SERVER_VERSION: ["3.11", "4.0", "4.1", "5.0"] # Cassandra minor versions
+      fail-fast: false
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      # ---- Python for ccm ----
+      - name: Set up Python 3.9.16
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.9.16"
+
+      - name: Install ccm
+        run: |
+          python -m pip install --upgrade pip
+          git clone --depth 1 --single-branch -b cassandra-test https://github.com/apache/cassandra-ccm.git
+          cd cassandra-ccm
+          pip install -r requirements.txt
+          ./setup.py install
+
+      # ---- Install required Zulu JDKs (8/11/17) and capture their homes ----
+      - name: Install Zulu 11
+        id: z11
+        uses: actions/setup-java@v5
+        with:
+          distribution: zulu
+          java-version: "11"
+
+      - name: Install Zulu 17
+        id: z17
+        uses: actions/setup-java@v5
+        with:
+          distribution: zulu
+          java-version: "17"
+
+      - name: Install Zulu 8
+        id: z8
+        uses: actions/setup-java@v5
+        with:
+          distribution: zulu
+          java-version: "8"
+
+      - name: Export JAVA*_HOME variables
+        run: |
+          echo "JAVA8_HOME=${{ steps.z8.outputs.path }}"  >> "$GITHUB_ENV"
+          echo "JAVA11_HOME=${{ steps.z11.outputs.path }}" >> "$GITHUB_ENV"
+          echo "JAVA17_HOME=${{ steps.z17.outputs.path }}" >> "$GITHUB_ENV"
+          echo "JAVA_HOME=${{ steps.z8.outputs.path }}"    >> "$GITHUB_ENV"
+          echo "CCM_UPDATE_PID_DEFAULT_TIMEOUT=120"        >> "$GITHUB_ENV"
+
+      - name: Generate SSL certificates
+        run: |
+          mkdir -p /home/runner/workspace/tools/ccm/ssl/
+          cd /home/runner/workspace/tools/ccm/ssl/
+          keytool -genkey \
+            -keyalg RSA \
+            -alias cassandra \
+            -keystore keystore.jks \
+            -storepass cassandra \
+            -keypass cassandra \
+            -validity 364635 \
+            -dname "CN=Jane He, OU=TE, O=ASF, L=Santa Clara, ST=CA, C=TE"
+          keytool -export \
+            -alias cassandra \
+            -file cassandra.crt \
+            -keystore keystore.jks \
+            -storepass cassandra
+          openssl x509 \
+            -inform der \
+            -in cassandra.crt \
+            -out cassandra.pem
+          keytool -genkeypair \
+            -keyalg RSA \
+            -alias client \
+            -keystore truststore.jks \
+            -storepass cassandra \
+            -keypass cassandra \
+            -validity 364635 \
+            -dname "CN=Philip Thompson, OU=TE, O=DataStax, L=Santa Clara, ST=CA, C=TE"
+          keytool -importkeystore \
+            -srckeystore truststore.jks \
+            -destkeystore client.p12 \
+            -srcstorepass cassandra \
+            -deststorepass cassandra \
+            -deststoretype PKCS12
+          openssl pkcs12 \
+            -in client.p12 \
+            -passin pass:cassandra \
+            -nokeys \
+            -out client_cert.pem -legacy
+          openssl pkcs12 \
+            -in client.p12 \
+            -passin pass:cassandra \
+            -nodes \
+            -nocerts \
+            -out client_key.pem -legacy
+
+      - name: Install Simulacron
+        run: |
+          wget https://github.com/datastax/simulacron/releases/download/0.12.0/simulacron-standalone-0.12.0.jar -O /home/runner/simulacron.jar
+
+      # ---- Set up the runtime under test ----
+      - name: Set up Bun
+        if: matrix.RUNTIME == 'bun'
+        uses: oven-sh/setup-bun@v2
+        with:
+          bun-version: latest
+
+      - name: Set up Deno
+        if: matrix.RUNTIME == 'deno'
+        uses: denoland/setup-deno@v2
+        with:
+          deno-version: latest
+
+      - name: Resolve Cassandra latest patch version
+        env:
+          SERVER_VERSION: ${{ matrix.SERVER_VERSION }}
+        run: |
+          PATCH_SERVER_VERSION=$(
+            curl -s https://downloads.apache.org/cassandra/ \
+            | grep -oP '(?<=href=")[0-9]+\.[0-9]+\.[0-9]+(?=)' \
+            | sort -rV \
+            | uniq -w 3 \
+            | grep "^${SERVER_VERSION}\."
+          )
+          echo "Resolved Cassandra ${SERVER_VERSION}.x -> ${PATCH_SERVER_VERSION}"
+          echo "CCM_VERSION=$PATCH_SERVER_VERSION" >> "$GITHUB_ENV"
+
+      - name: Print environment
+        run: printenv | sort
+
+      - name: Pre-download Cassandra distribution
+        run: |
+          ccm create predownload -v $CCM_VERSION
+          ccm remove
+
+      - name: Run integration tests (${{ matrix.RUNTIME }})
+        run: |
+          if [ "${{ matrix.RUNTIME }}" = "bun" ]; then
+            # Bun has full CommonJS support, so mocha runs unchanged.
+            bun install
+            bunx mocha test/integration/short --recursive --exit -R spec -t 5000
+          else
+            # --allow-scripts builds the kerberos native addon; --unstable-detect-cjs
+            # makes Deno load the CommonJS driver and tests correctly.
+            deno install --allow-scripts=npm:kerberos
+            deno run -A --unstable-detect-cjs npm:mocha test/integration/short --recursive --exit -R spec -t 5000
+          fi
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 19d0c023..1decd2c4 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -46,6 +46,29 @@ jobs:
           node -e "require('./api-generation-test').generate()" > generated.ts
           npx tsc --noEmit
 
+  bun-unit-tests:
+    name: Unit tests on Bun
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: oven-sh/setup-bun@v2
+        with:
+          bun-version: latest
+      - run: bun install
+      - run: bunx mocha test/unit --recursive -R spec -t 5000
+
+  deno-unit-tests:
+    name: Unit tests on Deno
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: denoland/setup-deno@v2
+        with:
+          deno-version: latest
+      # --allow-scripts runs lifecycle scripts so the kerberos prebuild is fetched.
+      - run: deno install --allow-scripts=npm:kerberos
+      - run: deno run -A --unstable-detect-cjs npm:mocha@10.8.2 test/unit --recursive -R spec -t 5000
+
   unit-integration-tests:
     runs-on: ubuntu-latest
     strategy: