Log Message:
Changes 3.3.4:

Installation
---------------
Added support for DragonFly BSD.
Fixed compilation for 64-bit Linux.
Compilation fixes for OpenBSD configured with -thread.

Windows Installer
-----------------
Add option to set environment variables.
Fixed problem propagating PATH environment variable.
Make sure the PostgreSQL and MySQL libraries are shown correctly.

Compilers
---------
Work around a bug in HP-UX aCC.
Support IRIX with 7.4.x compiler.
Fixed moc compilation when Bison is installed.
Fixed compilation with Intel compiler on Windows.

Qt Designer
-----------
Fixed bug that could corrupt the .pro file.
Fixed bug that would remove source files from project when using a
statically linked designer.
Fixed handling of custom widget plugins which subclass QWidgetStack.
Raise and give focus to source files when clicking on them in the
project overview.
Fixed bug where empty variable declarations in .ui file would generate
improper C++ code.
Fixed crash when deleting action while changing its name.
Fixed crash when using third party plugins that create tabwidgets without any pages.
Fixed bug renaming slots in edit custom widgets dialog where old slot
name would not get removed.
Make sure uic-generated code compiles when QT_NO_CAST_ASCII is
defined.
Fixed bug showing wrong status indicators in connection table after
sorting the list.
Prevent templates based on unsupported widgets (like QScrollView) from
being created.

Qt Linguist
-----------
Fixed bug where spaces at the beginning or at the end of the source
text would not be displayed.

Qt Assistant
------------
Fixed bug in printing that sometimes caused the last page to be
skipped.
Fixed invalid font size error on startup.

qmake
-------
Work around bug in Visual Studio 2003 Custom Build Steps.
Handle path names with spaces properly.
Handle file names containing '&' characters correctly.
Create dependencies on .ui.h files.
Fixed crash on Solaris when error() string contains single quote.
Make it possible to specify a RES file for the vcproj file.
Fixed bug in make install on Linux
Various improvements for XCode.
Fixed bug in shadow builds.

for more information see 'changes-3.3.4'