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Why “in-place upgrade” from Exchange 2019 to Exchange SE is low risk

The_Exchange_Team's avatar
The_Exchange_Team
Platinum Contributor
May 01, 2025
We wanted to write an article related to a very frequent customer question related to Exchange Server 2019 to Exchange Server Subscription Edition (SE) migration. As we mentioned in Upgrading your ...
Updated May 02, 2025
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LukasSMSFT's avatar
LukasSMSFT
Icon for Microsoft rankMicrosoft
May 02, 2025

The major and minor versions remain unchanged (15.2). Exchange SE will initiate at a specific build, identified by the four-digit number following the major and minor versions.

niehweune's avatar
niehweune
Brass Contributor
May 02, 2025

Small detail: the article should really talk about "change the minor version of code" upon a new version (prior to SE), not the major version :)