The End of Support Calendar shows Microsoft Operating Systems end of support dates, whether they are the end of mainstream support that updates features and cosmetic changes, or extended support, which ends security fixes and all Microsoft technical support other than old web pages.
Security updates for Microsoft Office 2021 end October 13, 2026.
Event Information:
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Tue09Jan2024
Windows Server 2019 End of Mainstream Support
Applies to most editions of Microsoft Server 2019.
End of mainstream support refers to the date when Microsoft no longer provides feature updates and fixes.