A few hours ago, Oracle announced that the fourth maintenance release of its stable VirtualBox 4.3 software was available for download, and users are urged to update their installations as soon as possible.
VirtualBox 4.3.4 brings numerous bug fixes and improvements over the previous releases from the 4.3.x stable branch, but the most important one is that the software can now be compiled with early builds of Linux kernel 3.13.
This release also makes 3D work on the Slackware 14.1 Linux operating system, and correctly builds the vboxvideo kernel module on the Oracle Linux and Red Hat Enterprise Linux 6.1 guests.
VirtualBox 4.3.4 also fixes an occasional dead-lock in Guest Additions/3D, extends the functionality coverage for the C bindings, squashes various bugs and improves the VBoxManage help, fixes some crashes that occur on presentation mode switches, and repairs various medium enumeration issues.
Moreover, VirtualBox 4.3.4 fixes an annoying bug in the Local APIC emulation, which caused a BSOD when booting certain guests, fixes the “loading of saved states” issue that occured when the VT-x/AMD-V option was disabled, repairs a performance issue related to APIC accesses, which occurred after rebooting a virtual machine, and fixes “single-stepping inside the guest” issues for certain instructions.
Last but not least, there are also many bugs squashed and new features for the Windows and Mac OS X operating systems, so make sure that you read the entire changelog if you want to know more about the VirtualBox 4.3.4 release.