fix(generic): document that the minimum Node version is 6

README.md

@@ -16,6 +16,8 @@ jump right in to Electron development.
 
 # Getting Started
 
+**Note**: Electron Forge requires Node 6 or above, plus git installed.
+
 ```bash
 npm install -g electron-forge
 electron-forge init my-new-app

package.json

@@ -89,5 +89,8 @@
     "electron-installer-debian": "^0.4.0",
     "electron-installer-flatpak": "^0.4.0",
     "electron-installer-redhat": "^0.3.0"
+  },
+  "engines": {
+    "node": ">= 6.0"
   }
 }

src/electron-forge.js

@@ -13,7 +13,7 @@ checkSystem()
     checker.succeed();
     if (!goodSystem) {
       console.error(('It looks like you are missing some dependencies you need to get Electron running.\n' +
-                    'Make sure you have git installed and node.js version 4.0.0+').red);
+                    'Make sure you have git installed and Node.js version 6.0.0+').red);
       process.exit(1);
     }
 

src/util/check-system.js

@@ -8,4 +8,4 @@ export default async () =>
       resolve(true);
     });
   })
-  .then(prev => Promise.resolve(prev && semver.gt(process.versions.node, '4.0.0')));
+  .then(prev => Promise.resolve(prev && semver.gt(process.versions.node, '6.0.0')));