KB5127648 is out. Windows 11 Home and Pro users on version 24H2 have until midnight tonight to install it — because after October 13, 2026, support ends. No more security patches. No more fixes. Just a static, increasingly vulnerable OS unless they upgrade to 25H2 or 26H2. Microsoft confirmed this in its official support bulletin, not as a warning, but as a date stamped in the calendar: End of service for Windows 11 24H2 Home and Pro editions. Effective immediately after today’s cumulative update ships. That update, KB5127648, is now live for versions 24H2, 25H2, and 26H2 (builds 26100.9711, 26200.9711, and 26300.9711). Version 26H1 gets KB5127646 instead. 23H2 users are covered separately by KB5126653. Enterprise and Education editions of 24H2 remain supported until October 12, 2027, a full year longer. But for most consumers? This is the cutoff. And it arrives with one high-visibility fix: mouse stutter in games. Microsoft’s release notes call it “an issue that could cause mouse input to stutter in some games.” No titles named. No hardware listed. No mention of DPI, polling rate, or graphics API. Just confirmation the problem existed, and this patch resolves it. It wasn’t in the September 22 optional preview. This is the first public release of the fix. Also new: Copilot key remapping. Go to Settings > Bluetooth & devices > Keyboard, and choose between Right Ctrl or Context Menu key. Microsoft warns Right Ctrl may break shortcuts like Right Ctrl + Win, and quietly suggests Left Ctrl instead. File Explorer previews PDFs and other downloaded files again. Windows Hello fingerprint sign-in works after cold boot. AC-3 audio no longer crashes. Always On VPN reconnects reliably. Printing with RAW or Generic Text Only drivers stops failing. The UTC-05:00 Manitoba time zone appears ahead of its November 1 legal adoption. And Direct virtual disks that refused to come online now do. Security-wise, Microsoft patched over 1,400 CVEs. Two are zero-days. CVE-2026-96951. A Windows Shell flaw that bypasses Mark of the Web protections, was actively exploited in the wild. CVE-2026-108398. A.NET Framework bug, was publicly disclosed but has no known exploitation. The update is rolling out automatically via Windows Update. Manual download links are available on Microsoft’s support page. Users still on 24H2 Home or Pro who skip KB5127648 won’t get another. Their next move isn’t optional: upgrade to 25H2 or 26H2, or fall behind on patches. Microsoft’s support timeline leaves no middle ground.