Presently, VirtualBox runs on Windows, Linux and Macintosh hosts and supports a large number of guest operating systems including but not limited to Windows (NT 4.0, 2000, XP, Server 2003, Vista), DOS/Windows 3.x, Linux (2.4 and 2.6), and OpenBSD.
VirtualBox is being actively developed with frequent releases and has an ever growing list of features, supported guest operating systems and platforms it runs on. VirtualBox is a community effort backed by a dedicated company: everyone is encouraged to contribute while innotek ensures the product always meets professional quality criteria.
- Mac OS X hosts: fixed VBoxSVC crash while enumerating the host network interfaces under certain circumstances
- Snapshots: fixed image corruption after snapshot merge under certain circumstances (bug #6023)
- Snapshots: fixed crash with VBoxHeadless / OSE
- VMM: fixed reference counting guru meditation (bug #4940)
- VMM: improved guest SMP stability
- VMM: fixed VT-x hardware debug issues (bugs #477 & #5792)
- VMM: fixed PGMDynMapHCPage guru meditation (Mac OS X; VT-x only; bug #6095)
- VMM: fixed pgmPoolTrackFlushGCPhysPTInt guru meditations (Mac OS X; VT-x only; bugs #6095 & #6125)
- VMM: Fixed host crash when running PAE guests in VT-X mode (Mac OS X only; bug #5771).
- GUI: fix displaying of error message (bug #4345)
- GUI: fix inability to enter seamless mode (bugs #6185, #6188)
- 3D support: fixed assertion and flickering when guest application uses several windows with a single OpenGL context (bug #4598)
- 3D support: fixed host crashes when using GL_EXT_compiled_vertex_array and array element calls (bug #6165)
- 3D support: fixed runtime linker errors with OpenGL guest libs (bug #5297)
- 3D support: fixed OpenGL extension viewer crash on startup (bug #4962)
- NAT: fixed a 3.1.4 regression on Windows hosts where graceful connection termination was broken (bug #6237)
- NAT: alternative network setting was not stored persistent (bug #6176)
- NAT: fixed memory corruption during ICMP traffic under certain circumstances
- Network: allow to switch the host interface or the internal network while a VM is running (bug #5781)
- VHD: fix for images with a block size different than 2MB
- USB: fixed filtered device attach regression (bug #6251)
- USB: fixed crash in OHCI under rare circumstances (bug #3571)
- VRDP: fixed hang under rare circumstances when attaching USB devices
- ACPI: prevent guest freezes when accessing /proc/acpi for determining the state of the host battery and the AC adapter (Linux hosts only; bug #2836)
- PulseAudio: fixed guest freezes under certain conditions (3.1.4 regression; bug #6224)
- BIOS: increased space for DMI strings
- BIOS: fixed interrupt routing problem for certain configurations (I/O-APIC enabled, ACPI not used; bug #6098)
- iSCSI: be more robust when handling the INQUIRY response
- iSCSI: be more robust when handling sense data
- BusLogic: fixed FreeBSD guests
- webservice: vboxwebsrv is now multithreaded
