Microsoft delays Exchange Server SE CU1 again, with no release date in sight

Microsoft has delayed Exchange Server Subscription Edition CU1 beyond its original first-half 2026 target and now says it still cannot provide a firm release date. The team is continuing to fold monthly security fixes into its internal CU1 build and plans to release it when the update reaches a stable point without an immediate security release looming. Security work is taking priority
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👉@sysadminoff

https://4sysops.com/archives/microsoft-delays-exchange-server-se-cu1-again-with-no-release-date-in-sight/