15 Change log • Linux Guest Additions: fixed installation on RHEL 3.9 guests and on some 64bit guests • Linux Guest Additions: prevent SELinux warnings concerning text relocations in VBox- OGL.so (bug #5690) • X11 guests: fixed mouse support for some Xorg 1.4 guests (openSUSE 11.0) • X11 guests: fixed xorg.conf modification for some older Xorg releases (openSUSE 11.1) • Windows guests: fixed some VBoxService shutdown issues • Windows guests: fixed VBoxVideo spinlock issues on NT4 • Windows Guest Additions: fixed uninstallation issues of NT4 • Shared Folders: fixed resolving of symlink target (bug #5631) • 2D Video acceleration: delay loading of OpenGL dlls for Windows hosts to avoid GUI crashes on misconfigured systems • 2D Video acceleration: fixed issues with video picture not displayed on playback 15.15 Version 3.1.0 (2009-11-30) This version is a major update. The following major new features were added: • Teleportation (aka live migration) migrate a live VM session from one host to another (see chapter 7.2, Teleporting, page 97) • VM states can now be restored from arbitrary snapshots instead of only the last one, and new snapshots can be taken from other snapshots as well (“branched snapshots” see chap- ter 1.9, Snapshots, page 23) • 2D video acceleration for Windows guests use the host video hardware for overlay stretch- ing and color conversion (see chapter 4.4.2, Hardware 2D video acceleration for Windows guests, page 65) • More flexible storage attachments: CD/DVD drives can be attached to arbitrary storage controllers, and there can be more than one such drive (chapter 5, Virtual storage, page 71) • The network attachment type can be changed while a VM is running • Complete rewrite of experimental USB support for OpenSolaris hosts making use of the latest USB enhancements in Solaris Nevada 124 and higher • Significant performance improvements for PAE and AMD64 guests (VT-x and AMD-V only normal (non-nested) paging) • Experimental support for EFI (Extensible Firmware Interface see chapter 3.12, Alternative firmware (EFI), page 51) • Support for paravirtualized network adapters (virtio-net see chapter 6.1, Virtual network- ing hardware, page 83) In addition, the following items were fixed and/or added: • VMM: guest SMP fixes for certain rare cases • GUI: snapshots include a screenshot 205