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 keep Exchange in their own 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.

June 27,  2025: Updated with the latest plans for Cumulative Updates and a hard deadline for migration in the second half of 2026.

Product: Exchange Server

Licensing: Exchange Server

Near Term (2025)

The next version of Exchange Server, Exchange Server SE, should ship in the third quarter of 2025. Microsoft says that Exchange Server SE will be “code equivalent” to Exchange Server 2019 with Cumulative Update (CU15, released Feb. 2025) and the latest security updates. The main differences will be branding and licensing. (See “Exchange Server Cumulative Updates” for an explanation of CUs).