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Microsoft Exchange 2019 CU15 SU5 end of extended support

45days

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    About this moment

    There are 46 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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    Worldwide

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    endoflife.date

    Last verified Sep 16, 2026

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