Upgrade from 0.0.5 to 0.0.6
You should pass now in the array to setDatalayer the field gtm_shipping_price
Upgrade from 0.0.6 to 1.0.0
Remove import checkout because that function is for phase 2.
Upgrade from 1.0.1 to 1.0.2
Add the variable 'orderId' to configuration array in setDatalayer in the Thank you page