Oracle Company the second beta release of VirtualBox 6.1 virtualization system. Compared with the following :
- Improved support for nested hardware virtualization on Intel CPUs, added the ability to run Windows on an external VM;
- Support for the recompiler has been discontinued; running virtual machines now requires support for hardware virtualization in the CPU;
- Runtime is adapted to work on hosts with a large number of CPUs (no more than 1024);
- The interface for setting up storages and the network subsystem has been optimized;
- Added CPU load indicator to the status bar in the virtual machine;
- Added multimedia keys to the software keyboard;
- Increased flexibility for importing and exporting virtual machines to OCI (Oracle Cloud Infrastructure). Added the ability to bind arbitrary tags to cloud images;
- Removed 3D support for legacy VBoxVGA driver;
- Added support for additional texture formats for Windows hosts;
- Added the ability to change the sound backend running on the host side when the VM is in a saved state;
- Added vboximg-mount utility for Linux hosts;
- Added support for moving multiple guest system source files/directories to a target directory in VBoxManage;
- EFI implementation moved to newer firmware code, NVRAM support added.
Source: opennet.ru