💥 HA 2022.5 required to upgrade to this version 💥

This version switches to a new calendar data model that is introduced in HA 2022.5. It is not backwards compatible to older versions of HA.

Additionally, if you are utilizing the all_day attribute on the event sensors, this attribute no longer exists as it is not useful for the intended purpose of this integration and it is also now a calculated attribute from the base calendar object.