As of IAM 7.7 the version of the UI SDK has been aligned with the version of Airlock IAM. UI SDK version 2.2 is therefore followed by version 7.7.
The changelog and actions required when upgrading for version 7.7 and newer can be found in the IAM release notes and are no longer listed on this page.
See also Upgrading to a newer version of the Loginapp REST UI SDK.