29 September 2025

Windows 11 23H2 EOL Nov 2025

By now, we all know Windows 10 ends support 14 October 2025, creating a stampede to Windows 11 ("nice computer you have there, would be a shame if it got exploited").

What's less well known, is that Windows 11 23H3 ends support less than one month later, on 11 November 2025.

Both the used and "new" PC and laptop market still has "Windows 11" systems that are not compatible with the new 24H2 baseline, so check this before buying a "too good to be true" discounted deal.  

Search the web for "Is {full processor model} compatible with Windows 11?" and see what the AI says; then search again for "Is {full processor model} compatible with Windows 11 24H2?" and see if YMMV.  For example, the Intel 8xxx generation are listed as compatible with Windows 11, but are not on the list for Windows 11 24H2.  

November 2025 will see the release of 25H2 as the new "current" version of Windows 11, making 24H2 the "old but still supported" version.  Both are based on the same code base that was so buggy for months, before settling down to be "the most reliable Windows 11 version yet" around July 2025 or so, after which new code updates within "the same" version added new bugs.

Microsoft's approach to updates has changed this year, stealthing significant deep code changes within "the same" version, along with new features that are hidden from use.  When 25H2 arrives as a small "enablement" package, it turns on the new features already delivered, so they can be used.  This may bring new bugs to light, but that's more likely to be accepted as part of a "new version of Windows".


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