This is a maintenance release. The following items were fixed and/or added:
- VMM: Fix instruction emulation for "cmpxchg16b"
- GUI: Improved GUI behavior on macOS Big Sur and later when kernel extensions are not loaded
- EHCI: Addressed an issue with handling short packets (bug #20726)
- Storage: Fixed a potential hang during disk I/O when the host I/O cache is disabled (bug #20875)
- NVMe: Fixed loading saved state when nothing is attached to it (bug #20791)
- DevPcBios: Addressed an issue which resulted in rejecting the detected LCHS geometry when the head count was above 16
- virtio-scsi: Improvements
- E1000: Improve descriptor handling
- VBoxManage: Fixed handling of command line arguments with incomplete quotes (bug #20740)
- VBoxManage: Improved 'natnetwork list' output
- VBoxManage: NATNetwork: Provide an option (--ipv6-prefix) to set IPv6 prefix
- VBoxManage: NATNetwork: Provide an option (--ipv6-default) to advertise default IPv6 route (bug #20714)
- VBoxManage: Fix documentation of "usbdevsource add" (bug #20849)
- Networking: General improvements in IPv4 and IPv6 area (bug #20714)
- OVF Import: Allow users to specify a different storage controller and/or controller port for hard disks when importing a VM
- Unattended install: Improvements
- Shared Clipboard: Improved HTML clipboard handling for Windows host
- MacOS host: Fix handling of non-ASCII characters in the guest control functionality (bug #20792)
- Linux host and guest: Introduced initial support for kernel 5.17
- Solaris package: Fixes for API access from Python
- Solaris IPS package: Suppress dependency on libpython2.7.so.*
- Linux host and guest: Fixes for Linux kernel 5.14
- Linux Guest Additions: Fixed guest screen resize for older guests which are running libXrandr older than version 1.4
- Linux Guest Additions: Introduced initial support for RHEL 8.6 kernels (bug #20877)
- Windows guest: Make driver install smarter
- Solaris guest: Addressed an issue which prevented VBox GAs 6.1.30 or 6.1.32 from being removed in Solaris 10 guests (bug #20780)
- EFI: Fixed booting from FreeBSD ISO images (bug #19910)
