10.15.6 (19g73) — Macos Catalina

Despite being a stabilization update, Build 19G73 introduced a widely reported within the com.apple.security.sandbox kernel extension.

: Resolved a recurring issue where certain USB mice and trackpads would unexpectedly lose connection. macOS Catalina 10.15.6 (19G73)

: Some users reported system-wide slowdowns and "beachballing" on older hardware, such as the Mid 2012 MacBook Pro and 2019 iMac models. Lifecycle and Current Status Everything NEW in macOS Catalina 10.15.6! Despite being a stabilization update, Build 19G73 introduced

The macOS Catalina 10.15.6 update (Build 19G73), released on July 15, 2020, served as a final stabilization point for the Catalina operating system before the transition to macOS Big Sur. While it introduced targeted performance improvements, it is perhaps most remembered for specific technical issues affecting power users. Key Features and Fixes Lifecycle and Current Status Everything NEW in macOS

: Added a new option to optimize video streaming on HDR-compatible Mac notebooks, specifically aimed at improving battery life.

: Addressed a bug that caused the computer name to change automatically after a software update.