Oracle has released VirtualBox 6.1 Maintenance Release 6.
Oracle VM VirtualBox 6.1.6 release includes improvements and regression fixes for Oracle VM VirtualBox 6.1.
Notable bug fixes are:
GUI: Multiple enhancements including visual elements updates
Graphics: Fixed monitor resizing and multi-monitor handling bugs on X11 guests with VMSVGA graphics adapter and improved 2D and 3D acceleration and rendering
USB: Multiple enhancements improving prformance and stability
Maintenance releases for 6.0 and 5.2, respectively:
including the "Oracle Critical Patch Updates for April 2020" are also available.
The Oracle VirtualBox Team