VirtualBox 5.1.24.117012

The following items were fixed and/or added:
VMM: mask the VME CPUID capability on AMD Ryzen processors for now to make certain guests works, for example Windows XP.
VMM: emulate more SSE2 instructions.
VMM: properly clear the TF and AC flags when dispatching real-mode interrupts.
GUI: fixes to make the mini-toolbar work with recent versions of KDE / Plasma.
GUI: fixed a potential crash when a VM with multiple screens is running in full screen / seamless mode and a host screen is removed, for example when connecting to the host via RDP.
GUI: fixed initial size hints for guests which set intermediate sizes before responding.
GUI: prevent stopped screen updates or black screen on reboot in a multi-screen setup under certain conditions.
Audio: many improvements for Windows 10 guests.
Storage: fixed possible crash when using Intels SPDK.
API: use the correct file name of the VM machine state if the VM settings directory is renamed, for example during grouping / ungrouping a VM.
API: return the correct error code if powering up a VM fails.
API: video recording did not automatically start at VM start when enabled in the VM settings.
API: when relocating a medium, check that the target path is fully qualified.
EFI: fix for VMs with more than 3504MB RAM.
Host-only adapter: correctly determine IPv4 netmasks on Windows hosts.
NAT network: properly do the refcounting for starting / stopping the NAT / DHCP services if the NAT network is changed while the adapter network connection type is anything else but NAT network.
VBoxManage: fixed controlvm videocapfile.
Windows hosts: fixed crashes if driver verifier is enabled.
Linux / Mac OS X hosts: more fixes for loading shared libraries (5.1.20 regression).
Linux hosts / guests: Linux 4.12 fixes.
Linux hosts / guests: reduce the kernel stack consumption for Linux kernels with CONFIG_CPUMASK_OFFSTACK defined.
Linux hosts / guests: fixes for kernel modules built with gcc-7.
Linux hosts / guests: Linux 4.13 fix.
Linux hosts: don't depend on net-tools on newer distributions as this package is deprecated in favour of iproute.
Linux hosts: make 2D video acceleration available for older Linux distributions (5.1 regression).
Linux Additions: fix for dynamic resizing with Oracle Linux 6 with UEK4.
Linux Additions: make Fedora 25 and 26 Alpha work when 3D pass-through is enabled.
Linux Additions: no longer recommend removing distribution- installed Additions if they are updated to our guidelines.