To properly support your Office 365 SharePoint tenancy knowing exactly when your tenancy is updated by Microsoft is a critical operational detail to understand. Knowing when versions change helps you diagnose and troubleshoot any potential issues that occur in your tenancy and/or with custom code and systems that integrate with your tenancy. It also allows you to be proactive and run regression tests on your custom code and systems that integrate with your tenancy to ensure they still work after your tenancy version has been updated.
The Office 365 SharePoint Version Checker checks your Office 365 SharePoint tenancy versions and logs the versions to a SharePoint list. You can then configure the SharePoint list to use the out-of-the-box email or SMS Text Messaging alerting capabilities to immediately notify you every time Microsoft rolls out a new version to your Office 365 SharePoint tenancy.