Microsoft plans to deprecate Remote PowerShell (RPS) Protocol in Exchange Online in June 2023. Adaxes 2023.2 uses the EXO V3 PowerShell module, so this change will not affect it. We have also updated Adaxes 2023, 2021.1, and 2020.1 to use the EXO V3 module instead of PowerShell remoting.
Your need to update to the latest version, otherwise, Adaxes will be unable to perform operations in Exchange Online when the deprecation takes place.