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april 2025 hotfix

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    End of Support for Exchange 2016/2019: Migrate to Online or SE Now

    On October 14, 2025, support for Exchange Server 2016 and Exchange Server 2019 ends — one month from now — and organizations that delay face escalating operational risk, loss of security updates, and an increasingly narrow set of safe upgrade paths. Microsoft’s Exchange engineering team has...
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    • april 2025 hotfix cloud migration dedicated hybrid app entra id esu 2025 ews enforcement exchange 2016 exchange 2019 exchange end of support exchange online migration exchange server se exchange-server-2016 exchange-server-2019 health checker hybrid app it risk management lifecycle policy migration planning on-premises modernization security updates
    • Replies: 0
    • Forum: Windows News
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    Microsoft Enforces Dedicated Exchange Hybrid App: Sept 2025 Window

    Microsoft is taking the first concrete step in its phased enforcement of the dedicated Exchange hybrid app requirement: on September 16, 2025 at 07:00 UTC Microsoft will temporarily block Exchange Web Services (EWS) traffic that uses the Exchange Online shared service principal for hybrid...
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    • april 2025 hotfix cisa guidance credential hygiene cve-2025-53786 dedicated hybrid app entra id ews ews deprecation exchange hybrid exchange online graph api graph migration health checker hybrid configuration wizard incident response m365 security on-premises patch management security service principal
    • Replies: 0
    • Forum: Windows News
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    Migrate to the Dedicated Exchange Hybrid App: Urgent Guide

    Microsoft’s Exchange team has given hybrid administrators a clear-but-urgent migration mandate: switch to the dedicated Exchange hybrid app and update on‑prem servers now, or face temporary disruptions in September and October followed by a permanent enforcement that will stop rich coexistence...
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    • admin consent april 2025 hotfix azure ad cisa ed-25-02 cisa guidance cve-2025-53786 dedicated hybrid app entra id ews ews block exchange hybrid graph api hcw hybrid coexistence hybrid deployment hybrid migration it governance keycredentials microsoft learn oauth office 365 on-prem to online phased enforcement security security auditing security hardening service principal setting override
    • Replies: 1
    • Forum: Windows News
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