title: Angular 5 : upgrade to 5.2.6
body: <p>I'm trying to create an angular 5.2.6 app. But, when i use ng new my-app, the angular version is 5.2.0.</p>
  
  <p>So : how to upgrade my app to 5.2.6 ? I didn't find a migration guide in angular's website...</p>
  
  <p>Thanx for your help !</p>