Our Service APIs can be accessed by specifying a version in the URL, e.g. …/service-name/v1/action. We continuously improve and extend our APIs while trying to stay compatible with your client. Therefore, we increase the API version whenever we introduce new changes which may break the previous version.
You are not enforced to immediately update your client whenever we introduce new API versions. However, we encourage you to update your client as soon as possible as we do not offer long-term support for older versions.