VirtualBox v5.1.12 is released. VirtualBox is a general-purpose full virtualizer for x86/x64 hardware. Targeted at server, desktop and embedded use, it is now the only professional-quality virtualization solution that is also Open Source Software.

VirtualBox v5.1.8 Changelog:
* VMM: fixed VERR_IEM_ASPECT_NOT_IMPLEMENTED Guru Meditations with certain Linux guests if KVM paravirtualization is enabled (5.1 regression; bugs #15613 and #16251)
* VMM: fixed VERR_VMX_UNABLE_TO_START_VM Guru Meditations under rare conditions
* GUI: prevent a crash under certain conditions if the VM is terminated very early
* GUI: fixed certain keyboard capture issues (5.1.10 regression; Mac OS X hosts only; bug #16150)
* GUI: fixed dragging guest windows in seamless mode with the keyboard captured (X11 hosts only; bug #15837)
* GUI: fixed a problem where the new version detected dialog was covered by the appliance import dialog (Mac OS X hosts only; bug #16238)
* Storage: fixed NVMe reset processing when doing rmmod nvme; modprobe nvme in a Linux guest (bug #16080)
* Storage: fixed creating a snapshot when the VM is running and an NVMe controller is present
* Storage: fixed a problem with the LsiLogic SCSI controller where requests could be lost with SMP guests
* E1000: fixed "cable disconnected" issue (Mac OS X guests only; 5.1.10 regression; bug #16260)
* E1000: fixed "TX unit hang" issue (Linux guests only; 5.1.10 regression; bug #16221)
* Parallel ports: fixed port enumeration on Windows host (bugs #15872 and #16127)
* API: don't crash when sanitizing certain VM names (bug #16299)
* Linux hosts: automatically disable asynchronous I/O on Linux 2.6.18 kernels as high I/O load may trigger kernel oopses on these kernels if this feature is enabled
* Linux hosts / guests: Linux 2.6.28 compile fix (bug #16267)
* Linux hosts: compile Linux 4.9 compile fix (bug #16286)
* Linux Additions: warn the user about a known bug with older Linux guests (e.g. Debian 7) requiring manual work to get 3D working (bug #15319)
* Linux Additions: fix the graphics driver build with Linux 4.10 and later (bug #16298)
* Windows Additions: fixed a crash in the WDDM driver under certain conditions

Download: VirtualBox v5.1.12
Source: Here