Was October 27, 2026 a software update day?
YES
Yes — Microsoft shipped out-of-band .NET and Windows patches on Oct 26–27, 2026.
Why
- Microsoft emergency .NET updates fix CVE-2026-111497 (CVSS 8.1)
- PHP 8.2–8.5 Windows builds patched for Brotli flaw
- Apple iOS 27.2 also rolled out this week