Exchange Server Roadmap

Exchange Server customers should expect higher subscription fees, more frequent update rollouts, and some disruption in the near future. Customers who nevertheless want to keep Exchange in their own or partners’ data centers must migrate to Exchange Server Subscription Edition (SE), the next version. There is no supported alternative: On Oct. 14, 2025, all other versions of Exchange Server leave support. 

July 21, 2025: Updated with a summary of the Extended Security Updates program for Exchange Server 2016 and Exchange Server 2019. 

Product: Exchange Server 

Licensing: Exchange Server 

Near Term (2025) 

The first production release of Exchange Server SE became generally available on July 1, 2025. Customer should start final testing and deployment of this release, before support ends for all other Exchange Server versions on Oct.14, 2025 (see fig. 1).  

A limited number of large customers can apply for a paid Extended Security Updates (ESUs) program for Exchange Server 2016 and 2019. It enables customers to get some critical and important security the Oct. 14, 2025 deadline for support.