Message center is the central point where Microsoft informs your organization of changes, new features, and planned maintenance actions in Office 365. To be informed about Office 365 changes, you will need to make some decision about product cycles and manage the updates accordingly.

With Office 365, you receive new product updates and features as they become available, instead of scheduled updates that are months or years apart. As a result, you and your users will routinely experience new and improved ways to do your job rather than a costly and time-consuming company-wide upgrade. The challenge with such a model is keeping up with the changes and updates. Here are a few ways that you can stay on top of the Office 365 updates in your organization:

• Message center
• Target release
• Roadmap
• Blogs and community

For more information, refer to the following URL at https://support.office.com/en-ie/article/Stay-on-top-of-Office-365-changes-719f4904-cbdd-4889-a0cf-fbd7837dfecd.