Oracle VM VirtualBox

What's new in this version:

The following items were fixed and/or added:
- VMM: another TLB invalidation fix for non-present pages
- VMM: fixed a performance regression (4.2.8 regression)
- GUI: fixed a crash on shutdown
- GUI: prevent stuck keys under certain conditions on Windows hosts 
- VRDP: fixed a rare crash on the guest screen resize
- VRDP: allow to change VRDP parameters (including enabling/disabling the server) if the VM is paused
- USB: fixed passing through devices on Mac OS X host to a VM with 2 or more virtual CPUs 
- USB: fixed hang during isochronous transfer with certain devices (4.1 regression; Windows hosts only)
- USB: properly handle orphaned URBs 
- BIOS: fixed function for returning the PCI interrupt routing table (fixes NetWare 6.x guests)
- BIOS: don't use the ENTER / LEAVE instructions in the BIOS as these don't work in the real mode as set up by certain guests (e.g. Plan 9 and QNX 4)
- DMI: allow to configure DmiChassisType 
- Storage: fixed lost writes if iSCSI is used with snapshots and asynchronous I/O 
- Storage: fixed accessing certain VHDX images created by Windows 8 
- Storage: fixed hang when creating a snapshot using Parallels disk images 
- 3D: seamless + 3D fixes (bug #11723)
- 3D: version 4.2.12 was not able to read saved states of older versions under certain conditions 
- Main/Properties: don't create a guest property for non-running VMs if the property does not exist and is about to be removed 
- Main/Properties: don't forget to make new guest properties persistent after the VM was terminated 
- Main/Display: don't lose seamless regions during screen resize
- Main/OVF: don't crash during import if the client forgot to call Appliance::interpret() 
- Main/OVF: don't create invalid appliances by stripping the file name if the VM name is very long 
- Main/OVF: don't fail if the appliance contains multiple file references 
- Main/Metrics: fixed Solaris file descriptor leak
- Settings: limit depth of snapshot tree to 250 levels, as more will lead to decreased performance and may trigger crashes
- VBoxManage: fixed setting the parent UUID on diff images using sethdparentuuid
- Linux hosts: work around for not crashing as a result of automatic NUMA balancing which was introduced in Linux 3.8 
- Windows installer: force the installation of the public certificate in background (i.e. completely prevent user interaction) if the --silent command line option is specified
- Windows Additions: fixed problems with partial install in the unattended case
- Windows Additions: fixed display glitch with the Start button in seamless mode for some themes
- Windows Additions: Seamless mode and auto-resize fixes
- Windows Additions: fixed trying to to retrieve new auto-logon credentials if current ones were not processed yet
- Windows Additions installer: added the /with_wddm switch to select the experimental WDDM driver by default
- Linux Additions: fixed setting own timed out and aborted texts in information label of the lightdm greeter
- Linux Additions: fixed compilation against Linux 3.2.0 Ubuntu kernels (4.2.12 regression as a side effect of the Debian kernel build fix)
- X11 Additions: reduced the CPU load of VBoxClient in drag'and'drop mode
- OS/2 Additions: made the mouse wheel work 
- Guest Additions: fixed problems copying and pasting between two guests on an X11 host