diff --git a/eng/pack/Microsoft.Azure.Functions.V4.PythonWorker.nuspec b/eng/pack/Microsoft.Azure.Functions.V4.PythonWorker.nuspec
index 361995fb..8adbb7c6 100644
--- a/eng/pack/Microsoft.Azure.Functions.V4.PythonWorker.nuspec
+++ b/eng/pack/Microsoft.Azure.Functions.V4.PythonWorker.nuspec
@@ -53,6 +53,7 @@
     <file src="..\..\3.14_LINUX_X64\**" target="tools\3.14\LINUX\X64" />
     <file src="..\..\3.14_OSX_X64\**" target="tools\3.14\OSX\X64" />
     <file src="..\..\3.14_OSX_ARM64\**" target="tools\3.14\OSX\Arm64" />
+    <file src="..\..\3.14_LINUX_ARM64\**" target="tools\3.14\LINUX\Arm64" />
     <file src="..\..\workers\python\prodV4\worker.config.json" target="tools" />
     <file src="Microsoft.Azure.Functions.PythonWorker.targets" target="build" />
     <file src="..\..\_manifest\spdx_2.2\manifest.spdx.json" target="SBOM\manifest.spdx.json" />
diff --git a/eng/pack/scripts/rc_nix_arm64_deps.sh b/eng/pack/scripts/rc_nix_arm64_deps.sh
new file mode 100644
index 00000000..20da0118
--- /dev/null
+++ b/eng/pack/scripts/rc_nix_arm64_deps.sh
@@ -0,0 +1,78 @@
+#!/bin/bash
+
+python -m venv .env
+source .env/bin/activate
+python -m pip install --upgrade pip
+
+version_minor=$(echo $1 | cut -d '.' -f 2)
+mkdir -p $BUILD_SOURCESDIRECTORY/deps
+
+# Targeting: grpcio manylinux_2_17_aarch64.whl build
+
+# Starts a docker container using the linux/arm64 platform
+# Inside the container, we perform the same steps as our typical builds
+# However, since we're running them on the linux/arm64 platform, we ensure
+# that we pull in the correct grpc, etc. builds
+docker run --privileged --rm tonistiigi/binfmt --install all
+docker run --name my-arm64-container --platform linux/arm64 \
+  -v ./:/src \
+  -w /src \
+  python:3.14.0rc3-alpine3.22 sh -c "
+    ls -la /src  # debug: see what files exist
+    apk update && apk add --no-cache git curl build-base && \
+    pip install --upgrade pip && \
+    cd workers && \
+    pip install . && \
+    pip install . --target /src && \
+    pip install invoke && \
+    cd tests && \
+    python -m invoke -c test_setup build-protos && \
+    ls -la /src
+  "
+
+cd workers
+
+# This copies over the build files from the docker container to the local pipeline
+docker cp my-arm64-container:/src/. $BUILD_SOURCESDIRECTORY/all/
+docker rm my-arm64-container
+
+# From the container, we have many unnecessary files. Here, we only
+# copy over the relevant files to the 'deps/' directory.
+copy_list=(
+  "azure"
+  "azure_functions_worker"
+  "azure_functions_runtime"
+  "azure_functions_runtime_v1"
+  "azurefunctions"
+  "dateutil"
+  "google"
+  "grpc"
+  "markupsafe"
+  "proxy_worker"
+  "six.py"
+  "werkzeug"
+)
+
+for dir in "${copy_list[@]}"; do
+      src="$BUILD_SOURCESDIRECTORY/all/$dir"
+      dest="$BUILD_SOURCESDIRECTORY/deps"
+
+      if [ -e $src ]; then
+        echo "Copying $dir..."
+        cp -r $src $dest
+      else
+        echo "Directory $dir not found in deps — skipping"
+      fi
+    done
+
+cp .artifactignore "$BUILD_SOURCESDIRECTORY/deps"
+
+version_minor=$(echo $1 | cut -d '.' -f 2)
+if [[ $version_minor -lt 13 ]]; then
+    cp -r azure_functions_worker/protos "$BUILD_SOURCESDIRECTORY/deps/azure_functions_worker"
+else
+    cp -r proxy_worker/protos "$BUILD_SOURCESDIRECTORY/deps/proxy_worker"
+fi
+
+echo "Listing contents of deps directory:"
+ls -la $BUILD_SOURCESDIRECTORY/deps
\ No newline at end of file
diff --git a/eng/pack/templates/macos_64_env_gen.yml b/eng/pack/templates/macos_64_env_gen.yml
index 71b4c097..af1a9f69 100644
--- a/eng/pack/templates/macos_64_env_gen.yml
+++ b/eng/pack/templates/macos_64_env_gen.yml
@@ -57,14 +57,14 @@ steps:
     scriptPath: 'eng/pack/scripts/mac_arm64_deps.sh'
     args: '${{ parameters.pythonVersion }}'
   displayName: 'Install dependencies'
-  condition: eq(variables['isRC'], 'false')
-- task: ShellScript@2
-  inputs:
-    disableAutoCwd: true
-    scriptPath: 'eng/pack/scripts/rc_mac_arm64_deps.sh'
-    args: '${{ parameters.pythonVersion }}'
-  displayName: 'Build dependencies from source'
-  condition: eq(variables['isRC'], 'true')
+#   condition: eq(variables['isRC'], 'false')
+# - task: ShellScript@2
+#   inputs:
+#     disableAutoCwd: true
+#     scriptPath: 'eng/pack/scripts/rc_mac_arm64_deps.sh'
+#     args: '${{ parameters.pythonVersion }}'
+#   displayName: 'Build dependencies from source'
+#   condition: eq(variables['isRC'], 'true')
 - bash: |
     pip install pip-audit
     cd workers
diff --git a/eng/pack/templates/nix_arm64_env_gen.yml b/eng/pack/templates/nix_arm64_env_gen.yml
index 9b30a95c..a6a92b00 100644
--- a/eng/pack/templates/nix_arm64_env_gen.yml
+++ b/eng/pack/templates/nix_arm64_env_gen.yml
@@ -7,6 +7,7 @@ steps:
 - task: UsePythonVersion@0
   inputs:
     versionSpec: ${{ parameters.pythonVersion }}
+    allowUnstable: true
     addToPath: true
 - powershell: |
     # Parse the Python minor version
@@ -22,6 +23,16 @@ steps:
     Write-Host "Minor version: $PY_MINOR"
     Write-Host "##vso[task.setvariable variable=minorVersion;]$PY_MINOR"
 
+    # Detect if this is an RC build
+    if ($PY_VER -match "rc") {
+      Write-Host "RC version detected"
+      Write-Host "##vso[task.setvariable variable=isRC;]true"
+    }
+    else {
+      Write-Host "Stable version detected"
+      Write-Host "##vso[task.setvariable variable=isRC;]false"
+    }
+
     # Set build-related variables based on Python minor version
     if( $PY_MINOR -ge 13 )
     {
@@ -51,7 +62,15 @@ steps:
     disableAutoCwd: true
     scriptPath: 'eng/pack/scripts/nix_arm64_deps.sh'
     args: '${{ parameters.pythonVersion }}'
-  displayName: 'Install Dependencies'
+  displayName: 'Install dependencies'
+  condition: eq(variables['isRC'], 'false')
+- task: ShellScript@2
+  inputs:
+    disableAutoCwd: true
+    scriptPath: 'eng/pack/scripts/rc_nix_arm64_deps.sh'
+    args: '${{ parameters.pythonVersion }}'
+  displayName: 'Build dependencies from scratch'
+  condition: eq(variables['isRC'], 'true')
 - bash: |
     pip install pip-audit
     cd workers
@@ -207,16 +226,16 @@ steps:
             $missing += $item
         }
     }
-    # === gRPC check ===
-    $grpcPattern = "*$(majorVersion)$(minorVersion)-${{ parameters.grpcBuild }}"
-    $grpcMatch = Get-ChildItem -Path $cythonDir -Name -ErrorAction SilentlyContinue |
-                Where-Object { $_ -like $grpcPattern }
+    # # === gRPC check ===
+    # $grpcPattern = "*$(majorVersion)$(minorVersion)-${{ parameters.grpcBuild }}"
+    # $grpcMatch = Get-ChildItem -Path $cythonDir -Name -ErrorAction SilentlyContinue |
+    #             Where-Object { $_ -like $grpcPattern }
 
-    if (-not $grpcMatch) {
-        $missing += "grpc/_cython/$grpcPattern"
-    } else {
-        Write-Host "✅ Found gRPC binary: $grpcMatch"
-    }
+    # if (-not $grpcMatch) {
+    #     $missing += "grpc/_cython/$grpcPattern"
+    # } else {
+    #     Write-Host "✅ Found gRPC binary: $grpcMatch"
+    # }
 
     if ($missing.Count -gt 0) {
         Write-Error "Validation failed. Missing expected files/folders:`n$($missing -join "`n")"
diff --git a/eng/pack/templates/nix_env_gen.yml b/eng/pack/templates/nix_env_gen.yml
index 3d2cd8a0..cb78c8c5 100644
--- a/eng/pack/templates/nix_env_gen.yml
+++ b/eng/pack/templates/nix_env_gen.yml
@@ -57,14 +57,14 @@ steps:
     scriptPath: 'eng/pack/scripts/nix_deps.sh'
     args: '${{ parameters.pythonVersion }}'
   displayName: 'Install Dependencies'
-  condition: eq(variables['isRC'], 'false')
-- task: ShellScript@2
-  inputs:
-    disableAutoCwd: true
-    scriptPath: 'eng/pack/scripts/rc_nix_deps.sh'
-    args: '${{ parameters.pythonVersion }}'
-  displayName: 'Build dependencies from source'
-  condition: eq(variables['isRC'], 'true')
+#   condition: eq(variables['isRC'], 'false')
+# - task: ShellScript@2
+#   inputs:
+#     disableAutoCwd: true
+#     scriptPath: 'eng/pack/scripts/rc_nix_deps.sh'
+#     args: '${{ parameters.pythonVersion }}'
+#   displayName: 'Build dependencies from source'
+#   condition: eq(variables['isRC'], 'true')
 - bash: |
     pip install pip-audit
     cd workers
diff --git a/eng/pack/templates/win_env_gen.yml b/eng/pack/templates/win_env_gen.yml
index af90096c..d32cef19 100644
--- a/eng/pack/templates/win_env_gen.yml
+++ b/eng/pack/templates/win_env_gen.yml
@@ -57,13 +57,13 @@ steps:
     filePath: 'eng\pack\scripts\win_deps.ps1'
     arguments: '${{ parameters.pythonVersion }}'
   displayName: 'Install dependencies'
-  condition: eq(variables['isRC'], 'false')
-- task: PowerShell@2
-  inputs:
-    filePath: 'eng\pack\scripts\rc_win_deps.ps1'
-    arguments: '${{ parameters.pythonVersion }}'
-  displayName: 'Build dependencies from source'
-  condition: eq(variables['isRC'], 'true')
+#   condition: eq(variables['isRC'], 'false')
+# - task: PowerShell@2
+#   inputs:
+#     filePath: 'eng\pack\scripts\rc_win_deps.ps1'
+#     arguments: '${{ parameters.pythonVersion }}'
+#   displayName: 'Build dependencies from source'
+#   condition: eq(variables['isRC'], 'true')
 - bash: |
     pip install pip-audit
     cd workers
diff --git a/eng/templates/official/jobs/build-artifacts.yml b/eng/templates/official/jobs/build-artifacts.yml
index 5b0b1581..900ab0ec 100644
--- a/eng/templates/official/jobs/build-artifacts.yml
+++ b/eng/templates/official/jobs/build-artifacts.yml
@@ -238,6 +238,9 @@ jobs:
       Python313V4:
         pythonVersion: '3.13'
         normalizedPythonVersion: '3.13'
+      Python314V4:
+        pythonVersion: '3.14.0-rc.2'
+        normalizedPythonVersion: '3.14'
   templateContext:
     outputParentDirectory: $(Build.ArtifactStagingDirectory)
     outputs:
diff --git a/workers/pyproject.toml b/workers/pyproject.toml
index 33266fa7..2654b27c 100644
--- a/workers/pyproject.toml
+++ b/workers/pyproject.toml
@@ -32,13 +32,16 @@ dependencies = [
      "python-dateutil~=2.9.0",
      "protobuf~=3.19.3; python_version == '3.7'",
      "protobuf~=4.25.3; python_version >= '3.8' and python_version < '3.13'",
-     "protobuf~=5.29.0; python_version >= '3.13'",
+     "protobuf~=5.29.0; python_version == '3.13'",
+     "protobuf~=6.32.1; python_version == '3.14'",
      "grpcio-tools~=1.43.0; python_version == '3.7'",
      "grpcio-tools~=1.59.0; python_version >= '3.8' and python_version < '3.13'",
      "grpcio-tools~=1.70.0; python_version == '3.13'",
+     "grpcio-tools~=1.75.1; python_version == '3.14'",
      "grpcio~=1.43.0; python_version == '3.7'",
      "grpcio ~=1.59.0; python_version >= '3.8' and python_version < '3.13'",
      "grpcio~=1.70.0; python_version == '3.13'",
+     "grpcio~=1.75.1; python_version == '3.14'",
      "uvloop~=0.21.0; python_version >= '3.13' and sys_platform != 'win32'",
      "azurefunctions-extensions-base==1.1.0; python_version >= '3.8'",
      "azure-functions-runtime==1.1.0b1; python_version >= '3.13'",