The below End of Support Calendar shows all 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:

  • Tue
    10
    Oct
    2023

    Microsoft Office 2019 End of Mainstream Support

    End of Mainstream support means the end of non-security patches and feature updates.