We continuously run projects to update and improve our car seats to be able to continue deliver the best and safest car seats on the market. All updates are made in cooperation with the type approval authorities to make sure the safety always comes first.
When we make bigger updates we publish an article or rename the chair for you to easier keep track, see examples below.
https://axkid.com/safety/what-are-the-new-features-of-axkid-minikid-2018/
https://axkid.com/safety/difference-between-bigkid-2-and-bigkid-2-premium/