Exchange Online PowerShell Updates to 3.10.1 to Fix CBA

Microsoft rushed out version 3.10.1 of the Exchange Online management PowerShell module to fix a problem with certificate-based authentication. It seems like a change in an internal Microsoft identity platform caused the tokens issued after a successful connection to Exchange Online to not authorize the execution of further cmdlets. To their credit, Microsoft fixed the issue, but is this the kind of thing that should be caught in testing?

https://office365itpros.com/2026/07/27/exchange-online-management-3-10-1/