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.
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Thu15Jan2026
Backblaze, the cloud backup company, is ending support on January 15th for the 32-bit version of Windows 10, and several older operating systems:
- Windows:
Windows 7 (32-bit and 64-bit)
Windows 8 (32-bit and 64-bit)
Windows 10 (32-bit)- Mac OS X:
Mavericks 10.9.x
Yosemite 10.10.x
El Capitan 10.11.x
Mac OS X Server- Mac OS
Sierra 10.12.x'Ending support' does not mean the service turns off. It means they aren't testing Backblaze on that operating any longer, and yes, you really should be upgrading that computer.
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Sun01Feb2026
For users of the ESR version of Firefox, also known as the Extended Support Release, February 2026 is the end of support in Firefox for Windows versions 7, 8, and 8.1.
https://support.mozilla.org/en-US/kb/firefox-users-windows-7-8-and-81-moving-extended-support
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Tue13Oct2026
Microsoft Office 2021 leaves extended support.
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Tue13Oct2026
The annual feature edition of Windows 11 known as 24H2, for 2024 second half, will reach the end of support and patches October 13, 2026.