diff --git a/.github/workflows/platformDeploy.yml b/.github/workflows/platformDeploy.yml
index 5ceb760a452b..91203a65b5ce 100644
--- a/.github/workflows/platformDeploy.yml
+++ b/.github/workflows/platformDeploy.yml
@@ -96,8 +96,8 @@ jobs:
       - name: Archive Android sourcemaps
         uses: actions/upload-artifact@v3
         with:
-          name: android-sourcemap
-          path: android/app/build/generated/sourcemaps/react/release/*.map
+          name: android-sourcemap-${{ github.ref_name }}
+          path: android/app/build/generated/sourcemaps/react/productionRelease/index.android.bundle.map
 
       - name: Upload Android version to GitHub artifacts
         if: ${{ !fromJSON(env.SHOULD_DEPLOY_PRODUCTION) }}
@@ -248,7 +248,7 @@ jobs:
       - name: Archive iOS sourcemaps
         uses: actions/upload-artifact@v3
         with:
-          name: ios-sourcemap
+          name: ios-sourcemap-${{ github.ref_name }}
           path: main.jsbundle.map
 
       - name: Upload iOS version to GitHub artifacts
diff --git a/ios/.xcode.env b/ios/.xcode.env
index 3d5782c71568..0ef3f59d606a 100644
--- a/ios/.xcode.env
+++ b/ios/.xcode.env
@@ -9,3 +9,8 @@
 # For example, to use nvm with brew, add the following line
 # . "$(brew --prefix nvm)/nvm.sh" --no-use
 export NODE_BINARY=$(command -v node)
+
+# Provide a sourcemap path so that in release builds a source map file will be
+# created at the specified location.
+# (RN's default behaviour on iOS is to skip creating a sourcemap file):
+export SOURCEMAP_FILE="$(pwd)/../main.jsbundle.map";
diff --git a/patches/react-native+0.73.4+017+iOS-fix-whitespace-support-sourcemap.patch b/patches/react-native+0.73.4+017+iOS-fix-whitespace-support-sourcemap.patch
new file mode 100644
index 000000000000..e8ca87026282
--- /dev/null
+++ b/patches/react-native+0.73.4+017+iOS-fix-whitespace-support-sourcemap.patch
@@ -0,0 +1,37 @@
+diff --git a/node_modules/react-native/scripts/react-native-xcode.sh b/node_modules/react-native/scripts/react-native-xcode.sh
+index d6c382b..3e1742c 100755
+--- a/node_modules/react-native/scripts/react-native-xcode.sh
++++ b/node_modules/react-native/scripts/react-native-xcode.sh
+@@ -104,7 +104,7 @@ fi
+ 
+ BUNDLE_FILE="$CONFIGURATION_BUILD_DIR/main.jsbundle"
+ 
+-EXTRA_ARGS=
++EXTRA_ARGS=()
+ 
+ case "$PLATFORM_NAME" in
+   "macosx")
+@@ -131,12 +131,12 @@ if [[ $EMIT_SOURCEMAP == true ]]; then
+   else
+     PACKAGER_SOURCEMAP_FILE="$SOURCEMAP_FILE"
+   fi
+-  EXTRA_ARGS="$EXTRA_ARGS --sourcemap-output $PACKAGER_SOURCEMAP_FILE"
++  EXTRA_ARGS+=("--sourcemap-output" "$PACKAGER_SOURCEMAP_FILE")
+ fi
+ 
+ # Hermes doesn't require JS minification.
+ if [[ $USE_HERMES != false && $DEV == false ]]; then
+-  EXTRA_ARGS="$EXTRA_ARGS --minify false"
++  EXTRA_ARGS+=("--minify" "false")
+ fi
+ 
+ "$NODE_BINARY" $NODE_ARGS "$CLI_PATH" $BUNDLE_COMMAND \
+@@ -147,7 +147,7 @@ fi
+   --reset-cache \
+   --bundle-output "$BUNDLE_FILE" \
+   --assets-dest "$DEST" \
+-  $EXTRA_ARGS \
++  "${EXTRA_ARGS[@]}" \
+   $EXTRA_PACKAGER_ARGS
+ 
+ if [[ $USE_HERMES == false ]]; then
diff --git a/workflow_tests/assertions/platformDeployAssertions.ts b/workflow_tests/assertions/platformDeployAssertions.ts
index 24bb91f001f6..0df3e46d9b81 100644
--- a/workflow_tests/assertions/platformDeployAssertions.ts
+++ b/workflow_tests/assertions/platformDeployAssertions.ts
@@ -63,8 +63,9 @@ function assertAndroidJobExecuted(workflowResult: Step[], didExecute = true, isP
     }
     steps.push(
         createStepAssertion('Archive Android sourcemaps', true, null, 'ANDROID', 'Archiving Android sourcemaps', [
-            {key: 'name', value: 'android-sourcemap'},
-            {key: 'path', value: 'android/app/build/generated/sourcemaps/react/release/*.map'},
+            // Note 1.2.3 comes from the ref name that we are on, which is the version we are deploying
+            {key: 'name', value: 'android-sourcemap-1.2.3'},
+            {key: 'path', value: 'android/app/build/generated/sourcemaps/react/productionRelease/index.android.bundle.map'},
         ]),
     );
     if (!isProduction) {
@@ -187,7 +188,8 @@ function assertIOSJobExecuted(workflowResult: Step[], didExecute = true, isProdu
     }
     steps.push(
         createStepAssertion('Archive iOS sourcemaps', true, null, 'IOS', 'Archiving sourcemaps', [
-            {key: 'name', value: 'ios-sourcemap'},
+            // Note 1.2.3 comes from the ref name that we are on, which is the version we are deploying
+            {key: 'name', value: 'ios-sourcemap-1.2.3'},
             {key: 'path', value: 'main.jsbundle.map'},
         ]),
     );