diff --git a/.github/workflows/ci-go.yml b/.github/workflows/ci-go.yml
index c6a369e..b177bc6 100644
--- a/.github/workflows/ci-go.yml
+++ b/.github/workflows/ci-go.yml
@@ -2,6 +2,11 @@ name: Go CI
 
 on:
   workflow_call:
+    inputs:
+      use_local_sdk:
+        description: 'Override databricks-zerobus-ingest-sdk with the local path dep (for integration testing unreleased Rust changes)'
+        type: boolean
+        default: false
 
 jobs:
   fmt:
@@ -75,6 +80,10 @@ jobs:
         with:
           targets: x86_64-pc-windows-gnu
 
+      - name: Patch Rust workspace to use local SDK
+        if: inputs.use_local_sdk
+        run: printf '\n[patch.crates-io]\ndatabricks-zerobus-ingest-sdk = { path = "sdk" }\n' >> ../rust/Cargo.toml
+
       - name: Build Rust FFI
         run: make build-rust
 
@@ -88,6 +97,8 @@ jobs:
         run: make examples
 
   user-experience:
+    # Skip when testing local SDK — this job tests the published release download flow
+    if: ${{ !inputs.use_local_sdk }}
     strategy:
       fail-fast: false
       matrix:
diff --git a/.github/workflows/ci-java.yml b/.github/workflows/ci-java.yml
index dff7b00..80afab3 100644
--- a/.github/workflows/ci-java.yml
+++ b/.github/workflows/ci-java.yml
@@ -2,6 +2,15 @@ name: Java CI
 
 on:
   workflow_call:
+    inputs:
+      use_local_sdk:
+        description: 'Override databricks-zerobus-ingest-sdk with the local path dep (for integration testing unreleased Rust changes)'
+        type: boolean
+        default: false
+      artifact_suffix:
+        description: 'Suffix to append to artifact names to avoid conflicts when called multiple times in one workflow run'
+        type: string
+        default: ''
 
 jobs:
   fmt:
@@ -49,6 +58,11 @@ jobs:
           java-version: ${{ matrix.javaVersion }}
           distribution: 'temurin'
           cache: 'maven'
+      - name: Patch Rust workspace to use local SDK
+        if: inputs.use_local_sdk
+        shell: bash
+        run: printf '\n[patch.crates-io]\ndatabricks-zerobus-ingest-sdk = { path = "sdk" }\n' >> ../rust/Cargo.toml
+
       - name: Build with Maven
         run: mvn clean compile
       - name: Run tests
@@ -57,7 +71,7 @@ jobs:
         if: always()
         uses: actions/upload-artifact@v4
         with:
-          name: test-results-${{ matrix.os }}-java-${{ matrix.javaVersion }}
+          name: test-results-${{ matrix.os }}-java-${{ matrix.javaVersion }}${{ inputs.artifact_suffix }}
           path: |
             java/target/surefire-reports/
             java/target/test-classes/
diff --git a/.github/workflows/ci-python.yml b/.github/workflows/ci-python.yml
index eb2747b..5bb1a39 100644
--- a/.github/workflows/ci-python.yml
+++ b/.github/workflows/ci-python.yml
@@ -2,6 +2,11 @@ name: Python CI
 
 on:
   workflow_call:
+    inputs:
+      use_local_sdk:
+        description: 'Override databricks-zerobus-ingest-sdk with the local path dep (for integration testing unreleased Rust changes)'
+        type: boolean
+        default: false
 
 jobs:
   test:
@@ -29,6 +34,12 @@ jobs:
       - name: Copy root LICENSE for maturin
         run: cp ../LICENSE LICENSE
 
+      - name: Patch Cargo.toml to use local Rust SDK
+        if: inputs.use_local_sdk
+        working-directory: python/rust
+        run: |
+          printf '\n[patch.crates-io]\ndatabricks-zerobus-ingest-sdk = { path = "../../rust/sdk" }\n' >> Cargo.toml
+
       - name: Run tests
         run: make dev test
 
diff --git a/.github/workflows/ci-typescript.yml b/.github/workflows/ci-typescript.yml
index fd430ae..c41e004 100644
--- a/.github/workflows/ci-typescript.yml
+++ b/.github/workflows/ci-typescript.yml
@@ -2,6 +2,15 @@ name: TypeScript CI
 
 on:
   workflow_call:
+    inputs:
+      use_local_sdk:
+        description: 'Override databricks-zerobus-ingest-sdk with the local path dep (for integration testing unreleased Rust changes)'
+        type: boolean
+        default: false
+      artifact_suffix:
+        description: 'Suffix to append to artifact names to avoid conflicts when called multiple times in one workflow run'
+        type: string
+        default: ''
 
 jobs:
   build:
@@ -67,6 +76,15 @@ jobs:
           sudo apt-get update
           sudo apt-get install -y gcc-aarch64-linux-gnu g++-aarch64-linux-gnu
 
+      - name: Patch Cargo.toml to use local Rust SDK (Unix)
+        if: inputs.use_local_sdk && runner.os != 'Windows'
+        run: printf '\n[patch.crates-io]\ndatabricks-zerobus-ingest-sdk = { path = "../rust/sdk" }\n' >> Cargo.toml
+
+      - name: Patch Cargo.toml to use local Rust SDK (Windows)
+        if: inputs.use_local_sdk && runner.os == 'Windows'
+        run: Add-Content -Path Cargo.toml -Value "`n[patch.crates-io]`ndatabricks-zerobus-ingest-sdk = { path = `"../rust/sdk`" }`n"
+        shell: powershell
+
       - name: Install dependencies
         run: npm ci
 
@@ -78,7 +96,7 @@ jobs:
       - name: Upload artifact
         uses: actions/upload-artifact@v4
         with:
-          name: bindings-${{ matrix.settings.target }}
+          name: bindings-${{ matrix.settings.target }}${{ inputs.artifact_suffix }}
           path: 'typescript/*.node'
           if-no-files-found: error
 
@@ -120,6 +138,15 @@ jobs:
           echo "$env:USERPROFILE\.cargo\bin" | Out-File -FilePath $env:GITHUB_PATH -Encoding utf8 -Append
         shell: powershell
 
+      - name: Patch Cargo.toml to use local Rust SDK (Unix)
+        if: inputs.use_local_sdk && runner.os != 'Windows'
+        run: printf '\n[patch.crates-io]\ndatabricks-zerobus-ingest-sdk = { path = "../rust/sdk" }\n' >> Cargo.toml
+
+      - name: Patch Cargo.toml to use local Rust SDK (Windows)
+        if: inputs.use_local_sdk && runner.os == 'Windows'
+        run: Add-Content -Path Cargo.toml -Value "`n[patch.crates-io]`ndatabricks-zerobus-ingest-sdk = { path = `"../rust/sdk`" }`n"
+        shell: powershell
+
       - name: Install dependencies
         run: npm ci
 
diff --git a/.github/workflows/push.yml b/.github/workflows/push.yml
index 3b07d31..d299190 100644
--- a/.github/workflows/push.yml
+++ b/.github/workflows/push.yml
@@ -15,13 +15,17 @@ jobs:
     if: always()
     steps:
       - run: |
-          if [[ "${{ needs.rust.result }}" == "failure" ]] || \
-             [[ "${{ needs.java.result }}" == "failure" ]] || \
-             [[ "${{ needs.typescript.result }}" == "failure" ]] || \
-             [[ "${{ needs.python.result }}" == "failure" ]] || \
-             [[ "${{ needs.go.result }}" == "failure" ]]; then
-            exit 1
-          fi
+          for result in \
+            "${{ needs.rust.result }}" \
+            "${{ needs.java.result }}" \
+            "${{ needs.typescript.result }}" \
+            "${{ needs.python.result }}" \
+            "${{ needs.go.result }}"; do
+            if [[ "$result" != "success" && "$result" != "skipped" ]]; then
+              echo "Job failed or was cancelled: $result"
+              exit 1
+            fi
+          done
 
   changes:
     runs-on:
@@ -55,6 +59,7 @@ jobs:
               - 'go/**'
               - '.github/workflows/ci-go.yml'
 
+  # Blocking jobs — required for merge
   rust:
     needs: changes
     if: needs.changes.outputs.rust == 'true'
@@ -69,14 +74,46 @@ jobs:
     needs: changes
     if: needs.changes.outputs.typescript == 'true'
     uses: ./.github/workflows/ci-typescript.yml
-    
+
   python:
     needs: changes
     if: needs.changes.outputs.python == 'true'
     uses: ./.github/workflows/ci-python.yml
-    
+
   go:
     needs: changes
     if: needs.changes.outputs.go == 'true'
     uses: ./.github/workflows/ci-go.yml
-  
\ No newline at end of file
+
+  # Non-blocking cross-SDK jobs — run all SDK tests against the local Rust
+  # source when rust/** changes, to catch breakage before a new FFI release.
+  # These are intentionally excluded from `gate` so they don't block merging.
+  cross-sdk-go:
+    needs: changes
+    if: needs.changes.outputs.rust == 'true'
+    uses: ./.github/workflows/ci-go.yml
+    with:
+      use_local_sdk: true
+
+  cross-sdk-python:
+    needs: changes
+    if: needs.changes.outputs.rust == 'true'
+    uses: ./.github/workflows/ci-python.yml
+    with:
+      use_local_sdk: true
+
+  cross-sdk-typescript:
+    needs: changes
+    if: needs.changes.outputs.rust == 'true'
+    uses: ./.github/workflows/ci-typescript.yml
+    with:
+      use_local_sdk: true
+      artifact_suffix: '-local-sdk'
+
+  cross-sdk-java:
+    needs: changes
+    if: needs.changes.outputs.rust == 'true'
+    uses: ./.github/workflows/ci-java.yml
+    with:
+      use_local_sdk: true
+      artifact_suffix: '-local-sdk'
diff --git a/.gitignore b/.gitignore
index e31a805..e40addc 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,5 +1,6 @@
 # IDE
 .idea/
+*/flycheck*
 *.iml
 *.iws
 *.ipr
diff --git a/rust/ffi/Cargo.toml b/rust/ffi/Cargo.toml
index 762d58c..bc812dd 100644
--- a/rust/ffi/Cargo.toml
+++ b/rust/ffi/Cargo.toml
@@ -11,7 +11,7 @@ crate-type = ["staticlib"]
 
 [dependencies]
 # Core SDK logic - use local path dependency
-databricks-zerobus-ingest-sdk = { path = "../sdk", features = ["arrow-flight", "testing"] }
+databricks-zerobus-ingest-sdk = { version="1.0.1", features = ["arrow-flight", "testing"] }
 
 # Arrow IPC for serializing/deserializing RecordBatches across the FFI boundary
 arrow-ipc = { version = "56.2.0", default-features = false }
diff --git a/rust/jni/Cargo.toml b/rust/jni/Cargo.toml
index 75f8af4..c4c67e4 100644
--- a/rust/jni/Cargo.toml
+++ b/rust/jni/Cargo.toml
@@ -14,7 +14,7 @@ crate-type = ["cdylib"]
 name = "zerobus_jni"
 
 [dependencies]
-databricks-zerobus-ingest-sdk = { path = "../sdk", features = ["arrow-flight"] }
+databricks-zerobus-ingest-sdk = { version = "1.0.1", features = ["arrow-flight"] }
 jni = "0.21"
 tokio = { version = "1.42", features = ["rt-multi-thread", "sync"] }
 prost = "0.13"