On July 4, 2013, the VirtualBox development team released version 4.2.16 and it is available for download
This is a maintenance release for version 4.2 and contains a relatively small number updates, but one important fix for appliance importing. Here is the list from the official Changelog.
OVF/OVA: don't crash on import if no manifest is used (4.2.14 regression; bug #11895)
GUI: do not restore the current snapshot if we power-off after a Guru Mediation
Storage: fixed a crash when hotplugging an empty DVD drive to the VM
Storage: fixed a crash when a guest read from a DVD drive attached to the SATA controller under certain circumstances
EFI: don't fail with 64-bit guests on 32-bit hosts (bug #11456)
Autostart: fixed VM startup on OS X
Windows hosts: native Windows 8 controls
Windows hosts: restore native style on Vista 32
Windows hosts / guests: Windows 8.1 adaptions (bug #11899)
Mac OS X hosts: after removing VirtualBox with VirtualBox_Uninstall.tool, remove it from the pkgutil --pkgs list as well
The full changelog can be found here.
You can download binaries for Solaris, Linux, Windows and MacOS hosts at