Microsoft Exchange 2019 CU15 SU5 end of extended support
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There are 44 days until Microsoft Exchange 2019 CU15 SU5 end of extended support, on Sunday, 1 November 2026.
Microsoft Exchange 2019 CU15 SU5 reaches the end of extended security updates on November 1, 2026: no further updates are expected after that. Its regular end of life was October 14, 2025; the extended security updates programme covers it until this date. It was released on October 22, 2018.
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Last verified Sep 18, 2026
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