January 10, 2024 at 11:49AM
Microsoft announced the end of mainstream support for Exchange Server 2019 on January 9, 2023, and will no longer accept bug fix requests. However, it will release patches for security issues and two cumulative updates, including support for TLS 1.3 and additional fixes. No details have been provided about the server’s future.
Key takeaways from the meeting notes on Microsoft’s Exchange Server 2019 announcement:
1. End of mainstream support for Exchange Server 2019 on-premises mail server software is on January 9, 2023.
2. No more bug fixes or Design Change Requests (DCR) will be accepted, but patches will still be released to fix security issues during the extended support phase until October 14, 2025.
3. Two cumulative updates (CU14 and CU15) are planned for Exchange Server 2019 this year, with CU14 expected by the end of the month and CU15 in the second half of 2024 with additional features such as support for TLS 1.3 and an S/MIME control fix.
4. Exchange Server 2016 is also under extended support until October 2025, and Exchange Server 2013 has reached its end-of-support date.
5. Admins are advised to migrate to Exchange Online or to Exchange Server 2019 to continue receiving updates for new security flaws.
6. Microsoft intends to share more details on Exchange Server’s future and potential new on-premises Exchange Server versions.
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