VirtualBox 6.0.6 Build 130049

What's new in this version:

Fixed and/or added:
- Virtualization core: nested AMD virtualization fixes
- User interface: fixed copying directories in file manager
- User interface: fixed operation progress in file manager when copying content
- User interface: fixed operation progress when deleting snapshots
- User interface: fixed unattended installation of recent Ubuntu guests
- User interface: various additional improvements
- Storage: fixed loading saved states for LsiLogic devices
- Storage: fixed fixed reading certain QCOW2 images and support version 3 of the format readonly
- Storage: Improved IDE PCI emulation to allow NetWare IDE drivers to use bus-mastering
- Graphics: Improved VMSVGA support to work with old X servers which previously showed only a badly scrambled screen
- Graphics: fixed invisible mouse cursor with VMSVGA emulation and without mouse integration
- Graphics: make EFI work with VMSVGA emulation
- Graphics: remember last guest screen size VMSVGA emulation
- Graphics: fix RDP to guests using VMSVGA emulation
- Graphics: various additional VMSVGA emulation fixes
- Audio: implemented audio device enumeration for the DirectSound backend
- Network: fixed unwanted padding bytes in Windows host adaptor network packets
- Serial: fixed possible crash on Windows when using a host device
- Serial: fixed loopback handling in the emulation causing garbage to be sent during boot with Linux guests
- Shared folders: fixed duplicate folders after restoring a saved
- Drag and drop: fixed copying files from guest host
- Recording: fixed modifying settings via VBoxManage
- VBoxManage: crash fix
- Fixed hangs during failed virtual machine start-up
- Windows host: fix unwanted wake-ups from standby
- Windows host: disallow Pause as a host key
- Linux host and guest: support Linux 5.0 and 5.1, thank you Valdis Kletnieks
- Linux host: support kernel 4.4.169
- Linux host: fix logging when building Linux kernel modules
- Linux host: clarified building Linux host drivers with secure boot
- FreeBSD host: compilation fixes
- Installers: reduced size of packages
- Web services: work with Java 11
- LibreSSL compilation fix, thank you Stefan Strogin
- Windows guests: fixed running applications which use complex display topologies with WDDM driver, fixed Skype for Business hangs
- Windows guests: fixed an occasional guest crash with WDDM driver and VBoxSVGA adapter
- Windows guests: shared folder file creation detection issue
- Linux guests: shared folder performance and reliability improvements and missing features
- OS/2 guests: shared folder fixes