(VirtualBox v5.1.26 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 v5.1.26 Changelog:
VMM: reset the TSC on VM reset to work around a Windows bug (bug #16643)
Audio: fixed memory leak when enabled with VRDP connections (5.1.24 regression; bug #16928)
Audio: fixed creation of too many sound sinks on Linux hosts when using the PulseAudio backend (bug #16938)
Audio: implemented record gain registers for AC'97 emulation; those are needed for newer Ubuntu guests which rely on those when controlling gain and muting the recording (capturing) levels
Storage: fixed hang when using the emulated NVMe controller with the SPDK (bug #16945)
Mouse: double click was not working with a precision touchpad (bug #14632)
Linux hosts: properly bring up host-only network interfaces with iproute (5.1.24 regression; bug #16911)
Linux hosts: provide Python 3 libraries for deb/rpm packages
Windows hosts: make it possible to use host-only networking without having bridged networking installed
Windows guests: fixed automatic logons for Vista and newer Windows guests (5.1.24 regression; bug #16921)

Download: VirtualBox v5.1.26
Source: Here