VirtualBox 4.2.18 Build 88780 Now Available for Download

Oracle has released an updated version of VirtualBox. Version 4.2.18 Build 88780 is a maintenance release of VirtualBox 4.2 which contains several stability improvements and performance fixes.

Overview
VirtualBox or Oracle VM VirtualBox is a powerful x86 and AMD64/Intel64 virtualization product for enterprise as well as home use. Not only is VirtualBox an extremely feature rich, high performance product for enterprise customers, it is also the only professional solution that is freely available as Open Source Software under the terms of the GNU General Public License (GPL).

As of version 4.0, VirtualBox introduces the Extension Pack mechanism which allows Oracle and 3rd parties to deliver additional functionality on top of the standard Open Source product.

Presently, VirtualBox runs on Windows, Linux, Macintosh and OpenSolaris hosts and supports a large number of guest operating systems including but not limited to Windows (NT 4.0, 2000, XP, Server 2003, Vista, Windows 7), DOS/Windows 3.x, Linux (2.4 and 2.6), Solaris and OpenSolaris, and OpenBSD.

Download VirtualBox 4.2.18 Build 88780
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New in VirtualBox 4.2.18 Build 88780
This release includes the following updates and fixes:

• VMM: properly handle NMIs on Linux hosts with X2APIC enabled.
• VMM: fixed potential crashes with 64-bit guests on 32-bit hosts (bug #11979).
• GUI / seamless: properly handle mouse wheel scroll events.
• GUI, VBoxManage: when unregistering a VM, also unregister the hard disk images which are used exclusively (bug #10311).
• GUI: prevent crashes under certain conditions on X11 hosts.
• 3D: multiscreen fixes (incorrect mouse position, flickers).
• 3D Support: several fixes for the Windows WDDM video driver (multiscreen, seamless).
• Snapshots: made live snapshots work again (bug #9255).
• Teleportation: made it work again (bug #9455).
• VBoxManage: on snapshot take, --pause is default and --live is for doing live snapshots.
• VBoxSVC: don't crash on systems with many VLAN interfaces (Solaris hosts only).
• Network: after the host resumes from suspend, disconnect and reconnect the virtual network cables to force renewing the DHCP leases for the guests. So far only Mac OS X hosts and Windows hosts (bug #10063).
• NAT: on name server changes force a reconnect of the virtual network cable to notify the guest (Mac OS X hosts only).
• Mac OS X installer: keep previously installed Extension Packs on VirtualBox upgrade.
• Linux hosts / guests: Linux 3.11 fixes (bug #12001).
• Solaris hosts: fixed a potential kernel panic caused due to unexpected preemption due to logging.
• Windows hosts: fixed an issue with USB2 devices being inaccessible when plugged into USB3 ports.
• Linux Additions: added PCI device identifier to vboxvideo.ko fixing DRI initialization under certain conditions (bug #11957).
• Linux Additions: fixed udev detection in the init script with Linux 3.x kernels.

Source:
Changelog for VirtualBox 4.2