Update 6/13/2025: Please see our new blog post for updated timelines of releases as well as additional details on how to get from current versions of Exchange Server to Exchange Server SE: Upgrading ...
Updated Jun 13, 2025
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I need some information, as Windows Server 2019 does not support TLS 1.3 unlike Windows Server 2022, and as I cannot upgrade In-place Windows Server 2019 to 2022 (with Exchange 2019 CU14 installed now, later CU15, then Exchange Server SE):
What limitations can currently be expected with Windows server 2019 with TLS 1.2 and Exchange Server SE updated VS Windows server 2022 with TLS 1.3 and Exchange Server SE updated?
This is my biggest doubt, that is, Is there the risk that before the EOL Windows server 2019 on 9 January 2029 there will be problems with the bowsers and client email apps using a Windows server 2019 with only TLS 1.2 system?
I don't want to find myself with a regularly updated Windows Server 2019 system and a regularly updated Exchange Server SE before the end of 2028, but with limitations on the client side, bowsers and email apps, due to the lack of support for TLS 1.3 in Windows server 2019 itself