- fixed compatibility with some applications (eg. Starburn), on new builds of Windows Vista and Windows 7.

Windows Installer: fixed a potential hang during installation
Windows Installer: fixed several problems

Solaris hosts: make it work with Solaris build 114 or later
Solaris hosts: fixed a bug serial port character handling found during loopback

Linux hosts: adapted vboxdrv.sh to the latest changes in VBoxManage list runningvms
Windows hosts: fixed a crash caused by host-only/bridged networking

Mac OS X hosts: fixed access to host DVD with passthrough disabled

Guest Additions: fixed problems with KDE 4 not recognizing mouse clicks
Windows Additions: fixed incorrect 8-bit guest color depth in Windows 7 guests

GUI: warn if VT-x/AMD-V could not be enabled for guests that require this setting

VMM: fixed occassional crash due to insuffient memory
VMM: fixed hanging 64 bits Solaris guests
VMM: restore from a saved state occassionally failed (bugs #3984 and #2742)

Clipboard: fixed a deadlock while shutting down the shared clipboard on X11 hosts

OVF: fixed potential hang during import
OVF: fixed potential crashes during import/export on Win64 hosts

VBoxManage modifyhd –compact: fixed bug which could lead to crashes and image corruption
VBoxManage metrics collect: now flushes the output stream.

VHD: made VBoxManage internalcommands sethduuid work for .vhd files (bug #3443)
VHD: some .vhd files could not be cloned (bug #4080)
VMDK: fixed creating snapshots

NAT: improvement of TCP connection establisment (bug #2987)
NAT: fixed order of DNS servers in DHCP lease (bug #4091)
NAT: fixed DHCP lease for multiple name servers (bug #3692)
NAT: fixed a potential segfault if the host lost its connectivity (bug #3964)

Shared Folders: deny access to parent directories on Windows hosts (bug #4090)
Shared Folders: make rm/rmdir work with Solaris guests on Windows hosts

Networking: fixed the problem with blocked receiving thread when a broadcast packet arrives too early to be handled by uninitialized e1000 adapter.
Networking: fixed the problem that caused host freezes/crashes when using bridged mode with host’s interface having RX checksum offloading on (bug #3926 and related). Fixes problems with TX offloading as well (bug #3870)

PXE boot: Added support for PRO/1000 MT Server adapter.
Python bindings: fixed keyword conflict
SCSI: fixed occasional crashes on Win64
Serial: allow to redirect the serial port to a raw file (bug #1023)
VRDP: fixed a rare incorrect screen update

- Added support for Google Chrome recently closed tabs.
- Disabled removal of most recent System restore point.
- Fixed bug with Internet Explorer 8 Compatibility View settings.
- Improved uninstaller support for Windows 7.
- Enhanced right-click menu options for Cleaner screen tree.
- Added extra information under title for Options and Tools screens.
- Added right-click menu to Registry screen tree.
- Added support to multi-select items in Include, Exclude and System Restore screens.
- Added language support for Estonian and Farsi.
- Internal 64-bit improvements.
- Minor bug fixes.

- Hotfix: fixed crash when seeking in files that can’t be decoded completely.
- Hotfix: corrected weird behaviors after restart with playback paused and “resume playback after restart” active.
- Updated third-party component blacklist.

- Improvements to Wizard browse dialog.
- Complete rewrite of PDF and RTF deep scan detection methods.
- Fixed display bug for status icons in low-color.
- Scan speed optimizations.
- Various UI tweaks.

libpurple
- Improve sleep behavior by aggregation of longer timeouts on second boundaries to allow better power saving. (Arunan Balasubramaniam)
- Fix various crashes on exit.
- Make XML parsing more resilient to interactions with other libraries. This, along with the fix for libxml2 bug 564217, fixes the crashes on connect in XMPP with recent gst-plugins-bad (see #8830 for details).
- Many security related fixes

IRC
- Correctly handle WHOIS for users who are joined to a large number of channels.
- Notify the user if a /nick command fails, rather than trying fallback nicks.

MSN
- Fix a race condition causing occasional Pidgin crashes.
- Fix some errors about the friendly name changing too fast caused by MSN/Yahoo integration buddies.

XMPP
- Less likely to pop up a new conversation window in disregard of the “Hide new IM conversations” preference.

Yahoo
- Fix a crash when sending very long messages.
- Fix a bug where UTF-8 status messages get garbled when going idle.

Matroska files are now taggable even if they don’t contain decodable audio tracks.
Worked-around “Open Containing Folder” command opening two windows on certain machines.
Added support for Multimedia Class Scheduler Service on Windows Vista and newer.
Various changes to make specific obscure crashes easier to analyze.
Updated third-party component blacklist.
Improved drag&drop compatibility with Windows 7.