https://wccftech.com/apple-releases-ios-14-8-1-and-macos-big-sur-11-6-1-with-important-security-updates/

Apple has seen fit to release a new software update for iOS 14 which aims to provide security fixes on older iPhone and iPad models. The new update arrives more than a month after the final iOS 14.8 update. Other than iOS 14.8.1, Apple has also seeded macOS Big Sur 11.6.1 for compatible Macs. Scroll down to read more details on what is new in the latest builds.

If you have an old iPhone that does not support iOS 15, you can update to the latest iOS 14.8.1. The update is available over-the-air in the Settings app. All you have to do is head over to the Setting > General > Software Update. The latest updates are a must for all iPhone models that are eligible to install the update. The new build patches vulnerabilities with Sidecar, WebKit, Voice Control, the Status Bar, and more. Apple has also released macOS Big Sur 11.6.1 other than iOS 14.8.1.