15 Change log – Significant performance improvements during export and import – Creation of the manifest file on export is optional now – Imported disks can have formats other than VMDK • Resource control: added support for limiting a VM’s CPU time and IO bandwidth see chapter 5.8, Limiting bandwidth for disk images, page 80 • Storage: support asynchronous I/O for iSCSI, VMDK, VHD and Parallels images • Storage: support for resizing VDI and VHD images see chapter 8.21, VBoxManage modi- fyhd, page 123. • Guest Additions: support for multiple virtual screens in Linux and Solaris guests using X.Org server 1.3 and later • Language bindings: uniform Java bindings for both local (COM/XPCOM) and remote (SOAP) invocation APIs In addition, the following items were fixed and/or added: • VMM: Enable large page support by default on 64-bit hosts (applies to nested paging only) • VMM: fixed guru meditation when running Minix (VT-x only bug #6557) • VMM: fixed crash under certain circumstances (Linux hosts only, non VT-x/AMD-V mode only bugs #4529 and #7819) • GUI: add configuration dialog for port forwarding in NAT mode (bug #1657) • GUI: show the guest window content on save and restore • GUI: certain GUI warnings don’t stop the VM output anymore • GUI: fixed black fullscreen minitoolbar on KDE4 hosts (Linux hosts only bug #5449) • BIOS: implemented multi-sector reading to speed up booting of certain guests (e.g. Solaris) • Bridged networking: improved throughput by filtering out outgoing packets intended for the host before they reach the physical network (Linux hosts only bug #7792) • 3D support: allow use of CR_SYSTEM_GL_PATH again (bug #6864) • 3D support: fixed various clipping/visibility issues (bugs #5659, #5794, #5848, #6018, #6187, #6570) • 3D support: guest application stack corruption when using glGetVertexAttrib[ifd]v (bug #7395) • 3D support: fixed OpenGL support for libMesa 7.9 • 3D support: fixed Unity/Compiz crashes on natty • 2D Video acceleration: multimonitor support • VRDP: fixed rare crash in multimonitor configuration • VRDP: support for upstream audio • Display: fixed occasional guest resize crash • NAT: port forwarding rules can be applied at runtime 187