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.
Event Information:
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Tue10Oct2023
Microsoft Office 2019 End of Mainstream Support
End of Mainstream support means the end of non-security patches and feature updates.
Office 2019 was launched September 24th, 2018.