Can I choose version of the POS?

Yes, POS Version Control allows you to switch between POS versions and use the one that suits you.

Here are the steps on how you can enable it in the POS

1. In your POS, Click the "Gear" icon settings in the upper right 
    
2. In General > Configuration 
    
3. Tick the box for "Enable POS Version Control" then save
   
   
    
4. There's a new icon in the console for you to choose the version of the POS