Samsung has started rolling out Android’s September 2020 security updates to mobile devices to fix critical security vulnerabilities in the operating system and enhance overall features on the devices. These updates include numerous improvements related to Wi-Fi connectivity, Samsung Keyboard, and the Messages app, along with some pretty significant security fixes. The most severe vulnerabilities addressed by this update, have either a ‘High’ or ‘Critical’ severity, making this update a requirement for Android users so that their devices remain protected. There are also optimizations made to the camera’s Pro Video feature.
Source: https://www.bleepingcomputer.com/news/security/samsung-fixes-critical-android-flaws-with-september-updates/

