Chapter 15. Change log

Table of Contents

15.1. Version 4.1.20 (2012-08-20)
15.2. Version 4.1.18 (2012-06-06)
15.3. Version 4.1.16 (2012-05-22)
15.4. Version 4.1.14 (2012-04-13)
15.5. Version 4.1.12 (2012-04-03)
15.6. Version 4.1.10 (2012-03-13)
15.7. Version 4.1.8 (2011-12-19)
15.8. Version 4.1.6 (2011-11-04)
15.9. Version 4.1.4 (2011-10-03)
15.10. Version 4.1.2 (2011-08-15)
15.11. Version 4.1.0 (2011-07-19)
15.12. Version 4.0.12 (2011-07-15)
15.13. Version 4.0.10 (2011-06-22)
15.14. Version 4.0.8 (2011-05-16)
15.15. Version 4.0.6 (2011-04-21)
15.16. Version 4.0.4 (2011-02-17)
15.17. Version 4.0.2 (2011-01-18)
15.18. Version 4.0.0 (2010-12-22)
15.19. Version 3.2.12 (2010-11-30)
15.20. Version 3.2.10 (2010-10-08)
15.21. Version 3.2.8 (2010-08-05)
15.22. Version 3.2.6 (2010-06-25)
15.23. Version 3.2.4 (2010-06-07)
15.24. Version 3.2.2 (2010-06-02)
15.25. Version 3.2.0 (2010-05-18)
15.26. Version 3.1.8 (2010-05-10)
15.27. Version 3.1.6 (2010-03-25)
15.28. Version 3.1.4 (2010-02-12)
15.29. Version 3.1.2 (2009-12-17)
15.30. Version 3.1.0 (2009-11-30)
15.31. Version 3.0.12 (2009-11-10)
15.32. Version 3.0.10 (2009-10-29)
15.33. Version 3.0.8 (2009-10-02)
15.34. Version 3.0.6 (2009-09-09)
15.35. Version 3.0.4 (2009-08-04)
15.36. Version 3.0.2 (2009-07-10)
15.37. Version 3.0.0 (2009-06-30)
15.38. Version 2.2.4 (2009-05-29)
15.39. Version 2.2.2 (2009-04-27)
15.40. Version 2.2.0 (2009-04-08)
15.41. Version 2.1.4 (2009-02-16)
15.42. Version 2.1.2 (2009-01-21)
15.43. Version 2.1.0 (2008-12-17)
15.44. Version 2.0.8 (2009-03-10)
15.45. Version 2.0.6 (2008-11-21)
15.46. Version 2.0.4 (2008-10-24)
15.47. Version 2.0.2 (2008-09-12)
15.48. Version 2.0.0 (2008-09-04)

This section summarizes the changes between VirtualBox versions. Note that this change log is not exhaustive; not all changes are listed.

VirtualBox version numbers consist of three numbers separated by dots where the first and second number represent the major version and the 3rd number the minor version. Minor version numbers of official releases are always even. An odd minor version number represents an internal development or test build. In addition, each build contains a revision number.

15.1. Version 4.1.20 (2012-08-20)

This is a maintenance release. The following items were fixed and/or added:

  • VMM: fixed a crash under rare circumstances for VMs running without hardware virtualization

  • VMM: fixed a code analysis bug for certain displacement instructions for VMs running without hardware virtualization

  • VMM: fixed an interpretion bug for TPR read instructions under rare conditions (AMD-V only)

  • Snapshots: fixed a crash when restoring an old snapshot when powering off a VM (bugs #9604, #10491)

  • VBoxSVC: be more tolerant against environment variables with strange encodings (bug #8780)

  • VGA: fixed wrong access check which might cause a crash under certain conditions

  • NAT: final fix for crashes under rare conditions (bug #10513)

  • Virtio-net: fixed the problem with receiving of GSO packets in Windows XP guests causing packet loss in host-to-VM transfers

  • HPET: several fixes (bugs #10170, #10306)

  • Clipboard: disable the clipboard by default for new VMs

  • BIOS: the PCI BIOS was not properly detected with the chipset type set to ICH9 (bugs #9301, #10327)

  • Mac OS X hosts: adaptions to Mountain Lion

  • Linux Installer: fixes for Gentoo Linux (bug #10642)

  • Linux guests: fixed mouse integration on Fedora 17 guests (bug #2306)

  • Linux Additions: compile fixes for RHEL/CentOS 6.3 (bug #10756)

  • Linux Additions: compile fixes for Linux 3.5-rc1 and Linux 3.6-rc1 (bug #10709)

  • Solaris host: fixed a guru meditation while allocating large pages (bug #10600)

  • Solaris host: fixed possible kernel panics while freeing memory

  • Solaris Installer: fixed missing icon for menu and desktop shortcuts

With VirtualBox 3.2, changelog information for versions before 2.0 was removed in order to save space. To access this information, please consult the User Manual of VirtualBox version 3.1 or earlier.