Ionic Pro upgrade, what are happened?

Hi guys,
today I come back to work on ionic but all commands are changed. I don’t understand what are happened. Did Ionic migrate on ionic Pro platform? Is it free or I need to buy an pro account in order to use the features that I used before?

  1. Is mandatory to use Git repo on Ionic Pro if I want to upload my app on Ionic View?
  2. On my iphone, I installed Ionic Viw app but all apps are not available. And I cannot load a new app. Why?

Could you please support me?