Version Variable Introduce

.env.example

@@ -1,6 +1,7 @@
 APP_NAME=Laravel
 APP_ENV=local
 APP_KEY=
+APP_VERSION=1.0.0
 APP_DEBUG=true
 APP_URL=http://localhost
 

app/Http/Controllers/HydraController.php

@@ -14,7 +14,7 @@ class HydraController extends Controller
 
     public function version(){
         return response([
-            "version"=>"1.0.0"
+            "version"=> env('APP_VERSION')
         ]);
     }
 }