VMM: Added nested paging support for nested virtualization (Intel hosts only)

VMM: Fixed rare guru meditations with certain guests on macOS 10.15 (Catalina) (bug #21237)

VMM: Fixed possible VM process crash on Windows hosts when Hyper-V is used with certain guests (bug #21174)

VMM: Fixed Windows XP guest hang or BSOD on AMD CPUs under certain circumstances (bug #21256)

GUI: Various bugfixes for the Guest Control file manager

GUI: Added more informative file operations in the Guest Control file manager

GUI: Added an option to the global settings (the display page) to resize user interface font

GUI: Fixed a regression in new vm wizard. Selected virtual disks are no longer deleted when the wizard is cancelled (bug #21244)

GUI: Added a new menu item to the devices menu to optionally upgrade the guest additions

VirtioSCSI: Fixed recognition of the virtio SCSI controller by the EFI firmware (bug #21200)

VirtioSCSI: Fixed hang when shutting down the VM if the virtio SCSI controller is used (bug #21144)

virtio-net: Workaround a bug in the virtio-net driver included in FreeBSD version up to 12.3 which renders the device non functional (bug #21201)

Storage: Fixed I/O errors with the VirtioSCSI controller when the host I/O cache is enabled (bug #19717)

VBoxManage: Fixed regression when 'createmedium disk --variant RawDisk' command resulted in invalid .vmdk file (bug #21125)

Main: Restored input pointing device behavior in multi-monitor VM configuration (bug #21137)

Main: Fixed progress indication during automatic Linux Guest Additions installation

Guest Control: Fixed path handling issues (bug #21095)

3D: Fixed VM process crash on macOS with 3D enabled (bug #21232)

Linux Host and Guest: General improvements in startup scripts

Linux Guest Additions: Introduced initial support for RHEL 8.7 and 9.2 kernels (bug #21272, #21258)

Linux Guest Additions: Introduced initial support for SLES 15.4 kernels

Linux Guest Additions: Fixed kernel modules rebuild behavior on system shutdown