Microsoft: Exchange 2016 reaches extended end of support in October
ID: 3614cbbc-19a0-52ad-97ad-01d5d63bcc6c
STIX ID: report--3614cbbc-19a0-52ad-97ad-01d5d63bcc6c
Feed Name: Bleeping Computer
Microsoft reminds organizations that Exchange Server 2016 reaches end of extended support on October 14, 2025, and recommends migrating to Exchange 2019 (which continues to receive updates) to enable future in-place upgrades to Exchange SE. The guidance advises placing legacy servers in maintenance mode after migration to detect lingering dependencies before decommissioning, and suggests considering migration to Exchange Online with provided documentation and timelines (e.g., Exchange 2019 CU15 in H2 2024).
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