This is a maintenance release. The following items were fixed and/or added:

- GUI: position off-screen windows to be fully visible again on relaunch in consistence with default-behavior (bug #15226)
- GUI: fixed the View menu / Full-screen Mode behavior on Mac OS X El Capitan
- GUI: fixed a test which allowed to encrypt a hard disk with an empty password
- GUI: fixed a crash under certain conditions during VM shutdown
- GUI: fixed the size of the VM list scrollbar in the VM selector when entering a group
- PC speaker passthrough: fixes (Linux hosts only; bug #627)
- Drag and drop: several fixes
- SATA: fixed hotplug flag handling when EFI is used
- Storage: fixed handling of encrypted disk images with SCSI controllers (bug #14812)
- Storage: fixed possible crash with Solaris 7 if the BusLogic SCSI controller is used
- USB: properly purge non-ASCII characters from USB strings (bugs #8801, #15222)
- NAT Network: fixed 100% CPU load in VBoxNetNAT on Mac OS X under certain circumstances (bug #15223)
- ACPI: fixed ACPI tables to make the display color management settings available again for older Windows versions (4.3.22 regression)
- Guest Control: fixed VBoxManage copyfrom command (bug #14336)
- Snapshots: fixed several problems when removing older snapshots (bug #15206)
- VBoxManage: fixed --verbose output of the guestcontrol command
- Windows hosts: hardening fixes required for recent Windows 10 insider builds (bugs #15245, #15296)
- Windows hosts: fixed support of jumbo frames in with bridged networking (5.0.16 regression; bug #15209)
- Windows hosts: don't prevent receiving multicast traffic if host-only adapters are installed (bug #8698)
- Linux hosts: added support for the new naming scheme of NVME disks when creating raw disks
- Solaris hosts / guests: properly sign the kernel modules (bug #12608)
- Linux hosts / guests: Linux 4.5 fixes (bug #15251)
- Linux hosts / guests: Linux 4.6 fixes (bug #15298)
- Linux Additions: added a kernel graphics driver to support graphics when X.Org does not have root rights (bug #14732)
- Linux/Solaris Additions: fixed several issues causing Linux/Solatis guests using software rendering when 3D acceleration is available
- Windows Additions: fixed a hang with PowerPoint 2010 and the WDDM drivers if Aero is disabled