Comment 69 for bug 1926937

Dont know if its better to open a new bug...

 VirtualBox 6.1.28 (released October 19 2021)

This is a maintenance release. The following items were fixed and/or added:

    VMM: Fixed guru meditation while booting nested-guests accessing debug registers under certain conditions
    UI: Bug fixes for touchpad-based scrolling
    VMSVGA: Fixed VM black screen issue on first resize after restoring from saved state (bug #20067)
    VMSVGA: Fixed display corruption on Linux Mint (bug #20513)
    Storage: Fixed a possible write error under certain circumstances when using VHD images (bug #20512)
    Network: Multiple updates in virtio-net device support
    Network: Disconnecting cable in saved VM state now is handled properly by virtio-net
    Network: More administrative control over network ranges, see user manual
    NAT: Fixed not rejecting TFTP requests with absolute pathnames (bug #20589)
    Audio: Fixed VM session aborting after PC hibernation (bug #20516)
    Audio: Fixed setting the line-in volume of the HDA emulation on modern Linux guests
    Audio: Fixed resuming playback of the AC'97 emulation while a snapshot has been taken
    API: Added bindings support for Python 3.9 (bug #20252)
    API: Fixed rare hang of VM when changing settings at runtime
    Linux host: Improved kernel modules installation detection which prevents unnecessary modules rebuild
    Windows Host: Sped up large page allocations on Windows 8 and later
    Windows Host: Fixed VBoxHeadless process sticking around after VM is closed (bug #20574)
    Host Services: Shared Clipboard: Prevent guest clipboard reset when clipboard sharing is disabled (bug #20487)
    Host Services: Shared Clipboard over VRDP: Fixed to continue working when guest service reconnects to host (bug #20366)
    Host Services: Shared Clipboard over VRDP: Fixed preventing remote RDP client to hang when guest has no clipboard data to report
    Linux Host and Guest: Introduced initial support for kernels 5.14 and 5.15
    Linux Host and Guest: Introduced initial support for RHEL 8.5 kernel
    Windows Guest: Introduced Windows 11 guest support, including unattended installation