VirtualBox 6.0.12, released in September 2019, is a maintenance update within the 6.0 series. It primarily focuses on stability improvements, bug fixes, and minor feature refinements rather than introducing major new functionality. Key Fixes and Improvements
: Users on older versions like Mojave (10.14) can use this version, but those upgrading to Catalina (10.15) or newer may encounter kernel extension blocks requiring manual approval in System Preferences. Essential Add-ons
: Resolved issues with inbound TCP URG pointer scrubbing to improve out-of-band data handling.