The Exchange Online PowerShell Module has been discontinued, and you must upgrade your Windows PowerShell in order to continue using Exchange related commands. Going forward, you will no longer use the Exchange module at all. Feel free to delete it from your computer.
All Exchange commands will now be executed through Windows PowerShell. In order to upgrade your module, follow these instructions:
Open Windows PowerShell as an administrator:
Run command:
update-Module -Name ExchangeOnlineManagement
Close and reopen PowerShell.
Run each of these commands on a separate line:
Set-ExecutionPolicy RemoteSigned
Install-Module -Name ExchangeOnlineManagement
Import-Module ExchangeOnlineManagement
Now you will have the updated v3 module installed. In order to connect to Exchange and authenticate your session, each session will need to you run this command before proceeding:
Connect-ExchangeOnline