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.
Windows 10 22H2, Second half 2022
Windows 10 version 22H2, released October 18, 2022, reaches end of service and the end of security patching, on
May 14th, 2024.
UPDATE: Microsoft has announced that for Windows 10, 22H2 will be the last feature update, and security patches will end on the previously-announced end-of-life date for Windows 10. Both 22H2 and Windows 10 will reach the end of security patching Oct 14, 2025.
More information on the Microsoft blog, here: