VirtualBox v5.1.28 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:
* GUI: mouse events did not reach host windows behind the transparent VM window (Mac OS X hosts only; bug #16246)
* Audio: fixed accidental crashes when using the AC'97 sound emulation (bug #16959)
* Audio: fixed crash when default input or output devices have changed (bugs #16968, #16969, #17004)
* Audio: fixed recording when using the ALSA backend
* Audio: fixed handle leak when using the OSS backend
* E1000: fixed a crash related to VLAN traffic over internal network (5.1.26 regression; bug #16960)
* NAT: apply --natbindip1 to TCP connections (bug #16478)
* OVF: when importing an appliance with XHCI controller, don't add an OHCI controller.
* Mac OS X hosts: fixed a GUI crash if Spotlight is used from file dialogs (5.1.20 regression; bugs #16935, #16953)
* Linux hosts: fixed creating fixed sized VDI images (bug #17010)
* Linux hosts / guests: fixes for Linux 4.4 of openSUSE Leap 42.3 (bug #16966)
* Bridged networking: align outgoing packet at word boundary, preventing Windows host crash in MsLbfoProvider.
* Linux Additions: kernel drm driver support for custom EL7 Linux 3.10 kernel
* Solaris Additions: hide an informational message on the bootup console

Download: VirtualBox v5.1.28
Source: Here