diff --git a/installer/mac/postinstall.sh b/installer/mac/postinstall.sh
index a5ddb5e90..50354c297 100755
--- a/installer/mac/postinstall.sh
+++ b/installer/mac/postinstall.sh
@@ -118,6 +118,7 @@ if [ "$EUID" -ne 0 ]; then
   defaults write "$plistFilePath" userDataPath -string ""
   defaults write "$plistFilePath" chromeFlags -string ""
   defaults write "$plistFilePath" betaAutoUpdateChannelEnabled -bool true
+  defaults write "$plistFilePath" latestAutoUpdateChannelEnabled -bool true
   defaults write "$plistFilePath" installVariant -string "$uuid"
 else
   sudo -u "$userName" defaults write "$plistFilePath" url -string "$pod_url"
@@ -161,6 +162,7 @@ else
   sudo -u "$userName" defaults write "$plistFilePath" userDataPath -string ""
   sudo -u "$userName" defaults write "$plistFilePath" chromeFlags -string ""
   sudo -u "$userName" defaults write "$plistFilePath" betaAutoUpdateChannelEnabled -bool true
+  sudo -u "$userName" defaults write "$plistFilePath" latestAutoUpdateChannelEnabled -bool true
   sudo -u "$userName" defaults write "$plistFilePath" installVariant -string "$uuid"
 fi
 
diff --git a/spec/postinstall.spec.ts b/spec/postinstall.spec.ts
new file mode 100644
index 000000000..5344244c9
--- /dev/null
+++ b/spec/postinstall.spec.ts
@@ -0,0 +1,65 @@
+import * as fs from 'fs';
+
+const extractUserDefaults = (filePath: string) => {
+  const content = fs.readFileSync(filePath, 'utf-8');
+  const fieldRegex =
+    /^\s*sudo -u "\$userName"\s+defaults write "\$plistFilePath"\s+([a-zA-Z_][a-zA-Z0-9_]*)/gm;
+  return Array.from(content.matchAll(fieldRegex), (match) => match[1]);
+};
+
+const extractSystemDefaults = (filePath: string) => {
+  const content = fs.readFileSync(filePath, 'utf-8');
+  const fieldRegex =
+    /^\s*defaults write "\$plistFilePath"\s+([a-zA-Z_][a-zA-Z0-9_]*)/gm;
+  return Array.from(content.matchAll(fieldRegex), (match) => match[1]);
+};
+
+const isArraySubset = (array1: string[], array2: string[]): boolean => {
+  return array2.every((item) => array1.includes(item));
+};
+
+const removeFields = (array: string[], stringsToRemove: string[]): string[] => {
+  return array.filter((item) => !stringsToRemove.includes(item));
+};
+
+describe('Shell Script Field Validation', () => {
+  it('should contain all the user defaults fields from JSON', async () => {
+    const jsonFilePath = './config/Symphony.config';
+    const scriptFilePath = './installer/mac/postinstall.sh';
+
+    // Read Symphony config JSON file
+    const jsonContent = JSON.parse(fs.readFileSync(jsonFilePath, 'utf-8'));
+    const fields = Object.keys(jsonContent) as [];
+    const filteredFields = removeFields(fields, [
+      'notificationSettings',
+      'customFlags',
+      'permissions',
+    ]);
+
+    // Read fields from post install script file
+    const scriptFields = extractUserDefaults(scriptFilePath);
+    scriptFields.splice(scriptFields.indexOf('ApplicationName'), 1);
+
+    expect(isArraySubset(scriptFields, filteredFields)).toBe(true);
+  });
+
+  it('should contain all the system defaults fields from JSON', async () => {
+    const jsonFilePath = './config/Symphony.config';
+    const scriptFilePath = './installer/mac/postinstall.sh';
+
+    // Read Symphony config JSON file
+    const jsonContent = JSON.parse(fs.readFileSync(jsonFilePath, 'utf-8'));
+    const fields = Object.keys(jsonContent) as [];
+    const filteredFields = removeFields(fields, [
+      'notificationSettings',
+      'customFlags',
+      'permissions',
+    ]);
+
+    // Read fields from post install script file
+    const scriptFields = extractSystemDefaults(scriptFilePath);
+    scriptFields.splice(scriptFields.indexOf('ApplicationName'), 1);
+
+    expect(isArraySubset(scriptFields, filteredFields)).toBe(true);
+  });
+});