path: root/dist/changes-4.5.0

Qt 4.5 introduces many new features and improvements as well as bugfixes
over the 4.4.x series. For more details, refer to the online documentation
included in this distribution. The documentation is also available online:

  http://doc.trolltech.com/4.5

The Qt version 4.5 series is binary compatible with the 4.4.x series.
Applications compiled for 4.4 will continue to run with 4.5.

Some of the changes listed in this file include issue tracking numbers
corresponding to tasks in the Task Tracker:

  http://qt.nokia.com/developer/task-tracker

Each of these identifiers can be entered in the task tracker to obtain more
information about a particular change.

****************************************************************************
*                           General                                        *
****************************************************************************

General Improvements
--------------------

New features
------------

- Disk Caching in QtNetwork
    * Added support for http caching in QNetworkAccessManager.
    * New classes:  QAbstractNetworkCache, QNetworkDiskCache.
    * QNetworkDiskCache is a simple disk-based cache.

- QDate
    * [207690] Added QDate::getDate().

- QDateTimeEdit
    * [196924] Improved QDateTimeEdit's usability. It now skips ahead to the
      next field when input can't be valid for the current section.

- QDateTime
    * [178738] Fixed QDateTime::secsTo() to return the correct value.

- QDBusPendingCall / QDBusPendingCallWatcher / QDBusPendingReply
    * New classes to make calls whose replies can be received later.

- QDesktopServices
    * Added the ability to determine the proper location to store cache files.

- QGraphicsItem
    * Added the QGraphicsItem::itemTransform() function.
    * [209357] Added the QGraphicsItem::opacity() function.
    * [209978] Added the QGraphicsItem::ItemStacksBehindParent flag to allow
      children to be stacked behind their parent item.
    * Added QGraphicsItem::mapRect() functions.

- QGraphicsScene
    * Added the QGraphicsScene::sortCacheEnabled property.
    * Added the QGraphicsScene::stickyFocus property.

- QGraphicsTextItem
    * [242331] Added the QGraphicsTextItem::tabChangesFocus() function.

- QGraphicsView
    * [210121] Added action, shortcut and shortcut override support to
      QGraphicsView and QGraphicsItem.

- QLineEdit
    * Added the ability to set the text margin size.

- QMainWindow
    * Added API to detect which dock widget is tabified together with another
      dock widget.

- QMessageBox
    * It is now possible to create categories in QErrorMessage to avoid error
      messages from the same category popping up repeatedly.

- QMetaObject
    * Added introspection of constructors, including the ability to invoke a
      constructor.

- QMetaProperty
    * [217531] Added the notifySignalIndex() function, which can be used to
      introspect which signal (if any) is emitted when a property is changed.

- QNetworkCookie
    * [206125] Added support for HTTP-only cookies.

- QNetworkProxyFactory
    * Added support for a factory of QNetworkProxy whose result can
      change depending on the connection being attempted.
    * Added support for querying system proxy settings on Mac OS X and
      Windows.

- QSharedPointer / QWeakPointer
    * Added two new classes for sharing pointers with support for atomic
      reference counting and custom destructors.

- QStringRef
  * [191369] Added QStringRef::localeAwareCompare() functions.

- QTabBar
    * Added the ability to place close buttons and widgets on tabs.
    * Added the ability to choose the selection behavior after a tab is
      removed.
    * Added a document mode which, on Mac OS X, paints the widget like
      Safari's tabs.
    * Added the movable property so that the user can move tabs easily.
    * Added mouse wheel support so that the mouse wheel can be used to change
      tabs.

- QTabWidget
    * Added a document mode that removes the tab widget border.

- QTcpSocket
    * [183743] Added support for requesting connections via proxies by
      hostname (no DNS resolution made on the client machine).

- QTextDocument / QTextDocumentWriter
    * Added the QTextDocumentWriter class which allows exporting of
      QTextDocument text and images to the OpenDocument format
      (ISO/IEC 26300).

- QtScriptTools
    * Added a new module to provide a debugger for Qt Script.

- Qt::WA_TranslucentBackground
    * Added this new window attribute to be able to have per-pixel
      translucency for top-level windows.

- Qt::WindowCloseButtonHint
    * Added a new window hint to control the visibility of the window close
      button.

- Qt::WindowStaysOnBottomHint
    * Added a new window hint to allow the window to stay below all other
      windows.

- Q_SIGNAL and Q_SLOT
    * Added new keywords to allow a single function to be marked as a signal
      or slot.

- QT4_IM_MODULE
    * [227849] Added a new environment variable that specifies the input
      method module to use and takes precedence over the QT_IM_MODULE
      enviroment variable. This environment variable allows the user to
      configure the environment to use different input methods for Qt 3 and
      Qt 4-based applications.

- QXmlQuery
    * Added a number of overloads to the bindVariable(), setFocus(), and
      evaluateTo() functions.
    * Added a property for controlling the network access manager.
    * Partial support for XSL-T has been added. See the main documentation for
      the QtXmlPatterns module for details.

Optimizations
-------------

- The backing store has been re-factored and optimized
    * Significant improvement in overall performance of painting for widgets.
    * Reduced the number of QRegion operations.
    * Improved update handling.
    * Improved the performance of clipping.
    * Support for full static contents.

- QGraphicsView has been optimized in several areas
    * Reduced the number of floating point operations.
    * Improved update handling.
    * Improved handling of deeply nested item trees.
    * Improved the performance of clipping for ItemClipChildrenToShape.
    * Improved sorting speed, so scenes with deeply nested item hierarchies do
      not affect the performance as compared to Qt 4.4.

- Widget style sheets optimisations
    * Improved the speed of style sheet initialization.

- QAbstractItemModel
    * Optimized QPersistantModelIndex creation and deletion.
    * Optimized adding and removing rows and columns.

- QFileSystemModel
    * Ensured that the model is always sorted when required.

- QTreeView
    * Optimized expanding and collapsing items.
    * Optimized expanding animations with large views.

- QRect and QRectF
    * Improves on functions like intersect(), contains(), etc.

- QTransform
    * Reduced the number of multiplications used for simple matrix types.

- QRasterPaintEngine
    * Reduced overhead of state changes; e.g., setPen() and setBrush().
    * Introduced a cache scheme for Windows glyphs, thus improving text
      drawing performance significantly.
    * Reduced the cost of doing rectangular clipping.
    * Improved pixmap drawing.
    * Improved pixmap scaling.
    * Optimized drawing of anti-aliased lines.
    * Optimized drawing of anti-aliased dashed lines.

Third party components
----------------------

- Updated Qt's SQLite version to 3.5.9.

****************************************************************************
*                          Library                                         *
****************************************************************************

- General Fixes
    * [217988] Fixed a thread safety issue in QFontPrivate::engineForScript
      which could lead to buggy text rendering when rendering text from
      several threads.
    * [233703] Fixed a crash that occured when the input method (for example
      SCIM) was destroyed while the application is still running.
    * [233634] When there are several input method plugins available, they are
      now initialized only when the user switches to them.
    * [231089] Fixed an issue which caused HTTP GET to fail for chunk
      transfers.
    * [193475] Consumer tablet devices (like Wacom Graphite and Bamboo) now
      work on Windows and Mac OS X.
    * [203864] Do not warn when deleting objects in their event handler except
      for Qt Jambi.

- QAbstractItemModel
    * [233058] Fixed the sorting algorithm used in rowsRemoved().

- QAbstractItemView
    * [221955] Fixed a bug that allowed rows to be selected even if the
      selection mode was NoSelection.
    * [244716] Fixed a possible crash when an edited cell was moved.
    * [239642] Ensured that a rubber band selection is clear if the selection
      ends on the viewport.
    * [239121] Ensured that the old selection is clear when starting a
      selection on the viewport.
    * [219380] Fixed an update issue when removing rows.

- QAbstractSpinBox
    * [221221] Fixed a usability issue with QAbstractSpinBox subclasses in
      itemviews.

- QBitmap
    * [216648] Fixed a problem where QBitmaps were being converted to 32-bit
      QPixmaps when QPixmap::resize() was called.

- QByteArray and QString
    * [239351] Fixed a bug in QCharRef and QByteRef that would cause them to
      fail to detach properly in some cases. Applications need to be
      recompiled to use the fix.
    * [212140] Added repeated() functions to these classes.
    * [82509] Added QT_NO_CAST_FROM_BYTEARRAY to disable "operator const
      char *" and "operator const void *" in QByteArray.

- QCalendarWidget
    * [206017] Fixed minimumSize to be calculated correctly in the case where
      the vertical header has a different text format set.
    * [206282] Added support for browsing months using the mouse wheel.
    * [238384] A click on the date cell will now be ignored if the year
      spin box is opened.

- QCleanlooksStyle
    * [195446] Skip disabled menu and menu bar items when using keyboard
      navigation.
    * Fixed a problem with wrapped text eliding on titlebars.
    * [204269] Fixed a sizing problem with push buttons having mnemonics.
    * [216172] Fixed a problem with check box on inverted color schemes.

- QColor
    * [196704] Fixed a problem where the QColor::fromHsvF() function could
      return incorrect values.

- QComboBox
    * [167106] Fixed a problem where the combobox menu would incorrectly show
      check boxes after a style change.
    * [227080] Fixed handling of the style sheet background-color attribute on
      Windows.
    * [227080] Adjusted pop-up size when using style sheet border.
    * [238559] Fixed the completer as it was not using the right column with
      setModelColumn().

- QCommandLinkButton
    * [220475] Added support for On/Off icon states.

- QCommonStyle
    * [211489] Ensured that checkable group boxes with no title are drawn
      correctly.
    * [222561] Made more standard icons available.

- QCOMPARE(QtTest)
    * [183525] Fixed issue that caused QCOMPARE to give incomplete
      information when comparing two string lists.
    * [193456] Ensured that nmake install for QTestLib copies the DLL into the
      bin directory.

- QCoreApplication
    * [224233] Ensured that QCoreApplication::arguments() skips the
      -stylesheet argument.

- QDate
    * [222937] QDate - fixed issue preventing a minimum date of 01-01-01
      from being set.

- QDataStream
    * [230777] Fixed a bug that would cause skipRawBytes() to go
      backwards if the correct resulting position was larger than 2 GB.

- QDateTimeEdit
    * [196924] Improved QDateTimeEdit's usability. It now skips ahead to the
      next field when input can't be valid for the current section.

- QDBusConnection
    * [211797] Added support for the GetAll call in the standard
      org.freedesktop.DBus.Properties interface.
    * [229318] Fixed race conditions caused by timers being deleted in
      the wrong thread.

- QDesktopServices
    * [237398] Ensured that, on Mac OS X, returned paths do not have a
      trailing '/'.

- QDesktopWidget
    * [244004] Fixed a coordinate issue on Mac OS X with multi-screen setups
      where the screen sizes differ.

- QDialog
    * [214987] Ensured that maximize buttons are not put on dialogs by default
      on Mac OS X.

- QDialogButtonBox
    * [224781] Dialog buttons without icons now get the same height as dialog
      buttons with icons to maintain the alignment.

- QDockWidget
    * [237438] Fixed a crash in setFloat() for parentless dock widgets.
    * [204184] Subclasses are now allowed to handle mouse events.
    * [173854] Ensured that the size of the dock widget is remembered when it
      is hidden.

- QDomDocument
    * [212446] Ensured that a new line inserted after an element that
      indicates whitespace is preserved.

- QDomAttr
    * [226681] Fixed issue that caused specified() to return false if the
      attribute is specified in the XML.

- QEvent
    * Added more debug operators for common event types.

- QFlags
    * [221702] Fixed issue with testFlag() that gave a surprising result on
      enums with many bits.

- QFormLayout
    * [240759] Fixed crash in QFormLayout that could occur when a layout was
      alone in a row.

- QFile
    * [238027] Fixed a bug that would cause QFile not to be able to map a file
      to memory if QFile::open() was called with extra flags, like
      QIODevice::Unbuffered.

- QFileInfo
    * [166546] Fixed QFileInfo operator== bug involving trailing directory
      separators.

- QFileDialog
    * [240823] Fixed issues with file paths over 270 characters in length on
      Windows.
    * [212102] Fixed ".." directory issue.
    * [241213] Fixed some problems when renaming files.
    * [232613] Fixed a usability issue with UNC path on Windows.
    * [228844] Fixed a wrong insertion in the filesystemModel that caused
      persistant model index to be broken.
    * [190145] [203703] Fixed a bug in getExistingDirectory() that returned
      /home/ instead of /home, or on Windows, returned c:/temp/ instead of
      c:/temp. We now match the native behavior.
    * [236402] Fixed warning in the QFileDialog caused by deleting a directory
      we have previously visited.
    * [235069] Fixed issue that prevented QFileDialog from being closed on
      Escape when the list view had focus.
    * [233037] Fixed issue that caused the "Open" button to be disabled even
      if we want to enter a directory (in AcceptSave mode).
    * [223831] Ensured that the "Recent Places" string is translatable.
    * Fixed crash on Windows caused by typing \\\ (empty UNC Path).
    * [226366] Fixed issue that prevented the completer of the line edit from
      being shown when setting a directory with lower case letter.
    * [228158] Fixed issue that could cause the dialog to be closed when
      pressing Enter with a directory selected.
    * [231094] Fixed a hang that could occur when pressing a key.
    * [227304] Fixed a crash that could occur when the dialog had a completer
      and a QSortFilterProxyModel set.
    * [228566] Fixed the layout to avoid cyclically showing and hiding the
      scroll bars.
    * [206221] Ensured that the view is updated after editing a value with a
      custom editor.
    * [196561] Fixed the static API to return the path of the file instead of
      the link (.lnk) on Windows.
    * [239706] Fixed a crash that could occur when adding a name filter from
      an editable combo box.
    * [198193] Ensured that directory paths on Windows have a trailing
      backslash.

- QFrame
    * [215772] Style sheets: Ensured that the shape of the frame is respected
      when not styling the border.

- QFont
    * [223402] QFont's QDataStream operators will now save and restore the
      letter/word spacing.

- QFontMetrics
    * [225031] Fixed issue where QFontMetrics::averageCharWidth() could return
      0 on Mac OS X.

- QFtp
    * [227271] Added support for old FTP servers that do not recognize the
      "SIZE" and "MDTM" commands.

- QFuture
    * [214874] Fixed deadlock issue that could occur when cascading QFutures.

- QGLContext
    * [231613] Fixed a crash that could occur when trying to create a
      QGLContext without a valid paint device.

- QGLFramebufferObject
    * [236979] Fixed a problem with drawing to multiple, non-shared,
      QGLFramebufferObjects from the same thread using QPainter.

- QGraphicsEllipseItem
    * [207826] Fixed boundingRect() for spanAngle() != 360.

- QGraphicsGridLayout
    * [236367] Removed (0, 0) maximum size restriction of a QGraphicsItem by
      an empty QGridLayout.

- QGraphicsItem
    * [238655] Fixed slowdown in QGraphicsItem::collidesWithItem() that was
      present in Qt 4.4.
    * [198912] ItemClipsChildrenToShape now propagates to descendants.
    * [200229] Ensured that context menu events respect the
      ItemIgnoresTransformations flag.
    * Enabling ItemCoordinateCache with no default size now automatically
      resizes the item cache if the item's bounding rectangle changes.
    * [230312] Mac OS X: Fixed a bug where update() issued two paint events.

- QGraphicsLayout
    * [244402] Fixed issue that could cause a horizontal QGraphicsLinearLayout
      to stretch line edits vertically.

- QGraphicsLayoutItem
    * Fixed a crash that could occur with custom layouts which did not delete
      children.

- QGraphicsScene
    * [236127] Fixed BSP tree indexing error when setting the geometry of
      a QGraphicsWidget.

- QGraphicsWidget
    * [223403] Ensured that QGraphicsWidget(0, Qt::Popup) will close when you
      click outside it.
    * [236127] Fixed QGraphicsScene BSP tree indexing error.
    * Improved rendering of window title bars.
    * Fixed crash that could occur when a child that previously had the focus
      died without having the focus anymore.

- QGraphicsProxyWidget
    * [223616] Ensure that context menus triggered by ActionsContextMenu are
      embedded.
    * [227990] Widgets are not longer resized/moved when switching themes on
      Windows.
    * [219058] [237237] Fixed scroll artifacts in embedded widgets.
    * [236545] Ensured that the drag and drop cursor pixmap is not embedded
      into the scene on X11.
    * [238224] Fixed a crash that could occur when a proxy widget item was
      deleted.
    * [242553] Fixed drag and drop propagation for embedded widgets.

- QGraphicsSvgItem
    * [241475] Fixed update on geometry change.

- QGraphicsTextItem
    * [240400] Fixed bugs in mouse press handling.
    * [242331] Add tabChangesFocus() to let the user control whether the text
      item should process Tab input as a character, or just switch Tab focus.

- QGraphicsView
    * [236453] Improved Tab focus handling (propagate Tab and Backtab to items
      and widgets).
    * [239047] Improved stability of fitInView() with a very small viewport.
    * [242178] Fixed rubber band debris left in Windows XP style (potentially
      any style).
    * Fixed a crash in QGraphicsView resulting from the non-deletion of
      sub-proxy widgets.
    * Fixed issue that caused items() to return an incorrect list with an
      incorrect sort order when an item in the scene has the
      IgnoresTransformations flag set to true.
    * Ensured that the painter properly saves/restores its state after a call
      to drawBackground().
    * [197993] Allow any render hint to be set/cleared by the
      QGraphicsView::renderHints property.
    * [216741] Fixed handling of QGraphicsView::DontSavePainterState (broken
      in Qt 4.3).
    * [235101] [222323] [217819] [209977] Implemented proper font and palette
      propagation in Graphics View.
    * [238876] Fixed scroll artifacts in reverse mode.
    * [153586] Ensured that the text cursor is drawn correctly in transformed
      text controls in a QGraphicsView.
    * [224242] Added support for embedding nested graphics views.

- QGroupBox
    * [204823] Fixed a palette inconsistency when using certain styles.

- QHeaderView
    * [239684] Fixed sorting that wouldn't happen when clicking unless the
      sort indicator is shown.
    * [236907] Fixed bug that could cause hidden columns to become visible.
    * [215867] Resizing sections after moving sections could resize the wrong
      columns.
    * [211697] Fixed ResizeToContents to always show the full content of
      cells.

- QImage
    * [240047] Fixed a problem with drawing/transforming sub-images.

- QImageReader
    * [138500] Added the QImageReader::autoDetectImageFormat() function.

- QKeySequence:
    * Added QKeySequence::SaveAs which has values for both GNOME and Mac OS X.
    * [154172] Improved toString(NativeText) to return more native glyphs on
      Mac OS X.

- QLabel
    * [226479] Fixed update if showing a QMovie that changes its size.
    * [233538] Fixed behavior involving changing the color of a label with a
      style sheet and pseudo-state.

- QLineEdit
    * [179777] Ensured that PasswordEchoOnEdit shows asterisks correctly.
    * [229938] Fixed issue that could cause textChanged() to be emitted when
      there was a maximum length set, even though the text was not changed.
    * [210502] Fixed case-insensitive inline completion.

- QLineF
    * [241464] Fixed issue that could cause intersects() to be numerically
      unstable in corner cases.
      The function has been rewritten to be faster and more robust.

- QListView
    * [217070] Fixed issue that could cause scroll bars to appear in adjusted
      icon mode.
    * [210733] Made improvements in the way the pagestep is computed.
    * [197825] Ensured that hidden items are not selectable.

- QLocalServer
    * Added new removeServer() static method to allow the socket file to be
      deleted after an application has crashed.

- QMacStyle
    * [232298] Draw the sort indicators in the correct direction for table
      headers.
    * [198372] Give context sub-menus the correct mask.
    * [209103] [232218] QToolButton::DelayedPopup is now displayed correctly.
    * [221967] Bold header text now uses the correct color.
    * [234491] Also the menu's QFont when when drawing menu items.
    * Ensure the proper pressed look for tabs on Leopard.

- QMainWindow
    * [192392] Stop excessive updates with unified toolbars when changing the
      enabled status of an action.
    * [195259] Ensured that the toolbar button is shown when the unified
      toolbar is created later.

- QMessageBox
    * [224094] Fixed crash that could occur when specifying a default button
      that was not one of the buttons listed.
    * [223451] Fixed a memory leak on a static pointer when the application
      exits.

- QMainWindow
    * [224116] [228995] [228738] save/restoreState() would not always restore
      the toolbars in the correct positions.
    * [215430] Fixed issue that meant that the user could dock widgets and
      they wouldn't be tabbed even if ForceTabbedDocks was set.
    * [240184] Fixed an issue that caused QDockWidget to get smaller and
      smaller by docking and undocking.
    * [186562] Fixed layout when saving the state with an undocked dock widget
      and then restoring it
    * [228110] Re-adding a toobar now also re-docks it.
    * [232431] Fixed a memory leak caused by setting centralWidget multiple
      times.

- QMenu
    * [220965] [222978] Style sheets: Made it possible to set border and
      gradient on items.

- QMenuBar
    * [228658] Fixed broken activated signal behavior.
    * [233622] Fixed the repaint when a dialog is invoked

- QMdiArea
    * [233264] Mac OS X: Improved performance when dragging sub-windows
      around.
    * [233267] [234002] [219646] Removed flickering behavior that could occur
      when switching between maximized sub-windows.

- QNetworkReply:
    * [235584] Fixed a bug that would cause sslConfiguration() to
      return a null object if finished() had already been emitted.

- QOpenGLPaintEngine
    * [244918] Fixed a problem with drawing text and polygons onto software
      rendering GL contexts.

- QPainterPath
    * [234220] Fixed crash due to a division by zero function in
      addRoundedRect().

- QPicture
    * [226315] Fixed an assert when trying to load picture files created with
      Qt 3 into Qt 4.

- QPixmap
    * [223800] Fixed a bug where grabWindow() on a QScrollArea did not work
      the first time.
    * [217815] Fixed a bug where grabWidget() did not work properly for
      resized and hidden widgets.
    * [229095] Mac OS X: Fixed issue that could cause grabWindow() to grab the
      wrong parts of the window for child widgets.

- QPlastiqueStyle
    * [195446] Ensured that the background is now painted on selected but
      disabled menu items for improved keyboard navigation.
    * [231660] Fixed support for custom icon size in tab bars.
    * [211679] drawPartialFrame() now passes the widget pointer.

- QPainter
    * QPainter::font(), brush(), pen(), background():
      These functions will return default constructed objects when the
      painter is inactive.
    * [242780] Fixed segmentation fault that could occur when setting
      parameters on an uninitialized QPainter.
    * [89727] Added support for raster operations.
    * [197104] More well-defined gradient lookup (linear gradients are now
      perfectly symmetric if inverting the color stops).
    * [239817] Fixed bug where overline/strike-out would be drawn with the
      wrong line width compared to the underline.
    * [243759] Fixed some off-by-one errors in the extended composition modes
      in the raster paint engine.
    * [234891, 229459, 232012] Fixed some corner case bugs in the raster paint
      engine line/rectangle drawing.
    * Fixed the "one pixel less" clipping bug caused by precision lost when
      converting to int.
    * Fixed the composition mode in QPainter raster which was not properly set.
    * Fixed an assert when the painter is reused after a previous bad usage
      (e.g., painting on a null pixmap).

- QPainterPath
    * Added convenience operators: +, -, &, |, +=, -=, &= and |=.

- QPrinter
    * [232415] Fixed a problem that caused a an invalid QPrinter
      object to not update its validity after being passed into a
      QPrintDialog.
    * [215401] Fixed the size of the Executive paper format.
    * [202113] Improved speed when printing to a highres PostScript printer.
    * [195028] Trying to print to a non-existing file didn't update the validity
      of the QPrinter object correctly.
    * [134820] Support CUPS printer instances on Unix systems (Mac and X11).
    * [201875] Fixed a bug that caused the fill opacity of a brush to be used
      for the stroke in certain cases.
    * [222056] Fixed absolute letter spacing when printing.
    * [234135] Fixed a problem with custom margins for CUPS printers.

- QPrintDialog
    * [232207] When printing to a Qt .pdf or .ps printer under Windows or
      Mac OS X, pop up a file dialog instead of the native print dialog.

- QPrintPreviewDialog
    * [236418] Fixed a problem that caused opening several QPrintPreviewDialogs
      and printing to them at the same time crash.

- QProcess
    * [230929] (Unix) Open redirection files in 64-bit mode wherever supported.

- QProgressDialog
    * [215050] Properly stop internal timer that retriggered for no reason.

- QProgressBar
    * [216911] stylesheet bug if minimum value != 0
    * [222872] Use the orientation when determining if we should repaint.

- QRadioButton
    * [235761] Fixed navigation with arrow keys when buttons are in different layout

- QRegion
    * [200586] Make QRegion a lot smarter when converting from a QPolygon, to avoid
      creating a lot of needless rectangles.
    * For Mac OS X, add QRegion::toQDRgn(), QRegion::toHIMutableShape() and
      corresponding ::fromQDRgn() and ::fromHIShape(). The ::handle() is still
      available for 32-bit Mac OS X builds and is the equivalent of ::toQDRgn().

- QScrollArea
    * [206497] Stylesheet: It's now possible to style the corner with ::corner

- QScrollBar
    * [230253] Simple stylesheets doesn't break the scrollbar anymore.

- QSettings
    * [191901] Added methods setIniCodec() and iniCodec() for changing the codec of .ini files.

- QSharedMemory
    * Don't deadlock when locking an already-held lock.

- QSortFilterProxyModel
    * [236755] Hidden columns in QTableView could become visible
    * [234419] Fixed a data corruption when adding child and row is filtered out

- QSslSocket
    * [189980] Ensure OpenSSL_add_all_algorithms() is called.

- QSslCertificate
    * [186084] Fixed a bug that would cause timezones in certificate
      times not to be parsed correctly, leading to valid certificates
      not being accepted

- QSslConfiguration
    * [237535] Fixed a bug that would cause QSslConfiguration objects
      to leak memory and eventually corrupt data due to wrong
      reference counting.

- QStandardItemModel
    * [227426] Fixed drag and drop of hierarchy
    * [242918] Added ability to change flags of the root item.

- QString
    * [205837] Qt 4.4: format string warnings / small QString conversion
      clean up.

- QSvgRenderer
    * [226522] Fixed fill-opacity when fill is a gradient.
    * [241357] Fixed gradients with two or more stop colors at the same offset.
    * [180846] Fixed small font sizes.
    * [192203] Add support for gzip-compressed SVG files.
    * [172004] Respect the text-anchor attribute for embedded SVG-fonts.
    * [199176] Ensure QSvgGenerator handles fractional font sizes
    * [151078] Fix parsing of embedded fonts in files that have <metadata> tags

- QSystemTrayIcon
    * [195943] QSystemTrayIcon now accepts right mouse clicks on Mac OS X.
    * [241613] Hide the tooltip when open the menu on Mac OS X.
    * [237911] Only emit QMenu::triggered once on Mac OS X.
    * [196024] Make it possible to disable context menus on Mac OS X.

- QTabBar
    * [213374] Fixed position of label in vertical bar with stylesheet

- QtScript
    * [177665] Added QScriptEngine::checkSyntax(), which provides information
      about the syntactical (in)correctness of a program.
      QScriptEngine::canEvaluate() has been obsoleted.
    * [192955] Added the ability to exclude the QObject::deleteLater() slot
      from the dynamic QObject binding, so that scripts can't delete
      application objects.
    * [212277] Fixed issue where the wrong prototype object was set when a
      polymorphic type was returned from a slot.
    * [213853] Fixed issue that could cause events to be processed less
      frequently than what's set with QScriptEngine::setProcessEventsInterval().
    * [217781] Fixed bug that caused the typeof operator to return "function"
      when applied to a QObject wrapper object.
    * [219412] Fixed bug that could cause the in operator to produce wrong results
      for properties of Array objects.
    * [227063] Fixed issue where a break statement caused an infinite loop.
    * [231741] Fixed bug that could cause the implementation of the delete
      operator to assert.
    * [232987] QtScript now calls QObject::connectNotify() and
      QObject::disconnectNotify().
    * [233346] Fixed issue where the garbage collector would not be triggered when
      very long strings were created, causing excessive memory usage.
    * [233624] Fixed bug that caused enums in namespaces to be handled incorrectly.
    * [235675] Fixed issue where creating a QScriptEngine would interfere with
      ActiveQt's QVariant handling.
    * [236467] Fixed bug that caused QtScript to treat a virtual slot redeclared by
      a subclass as an overload of the base class's slot.
    * [240331] Fixed bug that caused QtScript to crash when one of the unary
      operators ++ and -- was applied to an undefined variable.
    * If a signal has overloads, an error will now be thrown if you try to connect
      to the signal only by name; the full signature of a specific overload must
      be used.
    * Added support for multi-line string literals.
    * Added QScriptEngine::setGlobalObject().
    * Made it possible to use reserved identifiers as property names in
      contexts where there is no ambiguity.

- QTcpSocket
    * [235173] Fixed a bug that would cause QTcpSocket re-enter
    select(2) with an uninitialized timer (when the first call got
    interrupted by a signal).

- QTextCursor
    * [244408] Fixed regression in QTextCursor::WordUnderCursor behavior.

- QTextCodec
    * [227865] QTextCodec::codecForIndex(int) broken in Qt3Support

- QTextEdit
    * [164503, 232857] Fixed issues where using NoWrap caused
      selection/background colors to not cover full width of text control.
    * [186044] Fixed whitespace handling when copying text from Microsoft Word
      or Firefox.
    * [228406] Fixed parenthesis characters with RTL layout direction on
      Embedded Linux.
    * [189989] Fixed QTextEdit update after layout direction change.

- QTextStream
    * [210933] It is now possible to specify a locale which
      QTextStream should use for text conversions.

- QToolBar
    * [193511] Fixed stylesheet on undocked toolbar
    * [226487] Fixed the layout when the QMainWindow as a central widget with
      fixed size.
    * [220177] Fixed the layout not taking the spacing into account

- QToolButton
    * [222578] Fixed issues with checked and disabled tool buttons in some
      styles.
    * Tool button now allows independent hover styling on it's subcontrols.
    * [167075] [220448] [216715] Polished stylesheet color, background, and
      border.
    * [229397] Fixed regression against Qt3 where setPopupDelay(0) did not
      work as expected.

- QToolTip
    * [228416] Fixed style sheet tooltips on windows.

- QTreeView
    * [220494] scrollTo() didn't scroll horizontally if the vertical bar was
      already at the correct position.
    * [216717] Fixed update when children are added.
    * [225029] Fixed bug that prevented focus from being shown for
      non-selectable items when allColumnsShowFocus is set to true.
    * [226160] Fixed hit detection when first column is moved.
    * [225539] Fixed a crash when deleting the model.
    * [241208] Fixed animation when using persistent editors.
    * [202073] Fixed visualRect which would not take the indentation into
      account when 1st column is moved.
    * [230123] Item can no more be expanded with keyboard if
      setItemsExpandable has been set to false.

- QTreeWidget
    * [243165] selectAll didn't work before the widget was shown
    * [238003] setCurrentItem would not expand the parent item
    * [223130] Fixed drag&drop when sort is enabled that would only drop the
      first column.
    * [223950] Only allow to drag items when they have the
      Qt::ItemIsDragEnabled flag set.
    * [218661] Made sure our internal model can pass the "modeltest" test
      suite.
    * [217309] Fixed issue that caused data() for CheckStateRole to return
      Checked even if some children were partially checked.
    * [229807] Fix a redrawing problem when scrolling with a different palette
      role set on Mac OS X.
    * [236868] Prevent a crash when dragging an item hidden by a tooltip on
      Mac OS X.

- QLocale
    * Added support for narrow format for day and month names.
    * Day and month names can now also be fetched as a standalone text.

- QDebug
    * Values of type QBool are now properly outputted with QDebug.

- QUndoStack
    * [227714] Don't crash when owner group is deleted.

- QUrl
    * [204981] Made the QUrl tolerant parser more tolerant
    * Fixed a bug in QUrl's tolerant parsing of stray % characters
      (not part of %HH sequences), which would cause it to make the
      URL even worse
    * [227069] Fixed a bug that would cause QUrl to not parse URLs
      whose hostnames start with an IP address (like
      http://1.2.3.4.example.com)
    * [230642] Fixed a bug that made QUrl not properly produce proper
      URLs with relative paths
    * Modified QUrl to not normalize %HH in URLs unless strictly
      necessary. QUrl now keeps the original %-encoding of the input
      unless some operation is executed in the QString
      components. This also allows for %2f to exist in path components.

- QVariant
    * [215610] prevented assertion when reading from an invalid QDataStream.

- QWidget
    * [222323] [217819] [209977] Improve Qt's font and palette propagation.
    * [218568] Revert and reopen task 176809 ("when using
      Qt::PreventContextMenu policy, the context key menu is still not sent to
      the widget").
    * [220502] Ensure that setWindowFilePath() when called with an empty
      string clears the proxy icon in Mac OS X.
    * [240147] Enforce exclusivity between the Qt::WA_(Normal|Small|Mini)Size
    * [168641] Ensure that tablet releases go to the correct widget on X11 and
      Carbon (i.e., the widget that received the press).
    * [192565] Fixed a problem with calling QWidget::render(), using a
      QPrinter as a paint device.
    * [236565] [168570] Fix regression on X11 where QWidget::restoreGeometry()
      would restore incorrect geometry if the window was maximized when saved.
    * [201655] Fix QWidget::scroll() acceleration issue with child widgets on
      Mac OS X.
    * [210734] [210734] Fixed a bug where changing the visibility of alien
      widgets did not generate proper enter/leave events.
    * [228764] Major improvement of scroll performance.
    * [238258] [229067] [239678] Flickering with widgets larger than
      4096x4096 pixels in size.
    * [141091] Added full support for Qt::WA_StaticContents.
    * [238709] Fixed a bug where calling clearMask() did not update the view
      properly.
    * [213512] Fixed clipping issue with Qt::WA_PaintOutsidePaintEvent widgets.
    * [230175] Added support for calling render() recursively.
    * [238115] Fixed painting issues after calling winId().

- QWindowsStyle
    * [210069] Fixed a bug in the drawing of comboboxes.

- QWindowsVistaStyle
    * [221668] Respect background color role for item views.
    * [227360] Current item now gets focus for multiselection views.
    * [224251] Fixed incorrect painting of inverted and reversed progress
      bars.
    * [207836] Fixed a problem with vertical toolbar separators.
    * [202895] Fixed problem where indeterminate progress bars were not
      animated when Vista animations were explicitly disabled.
    * [200899] Message box buttons are now right aligned.

- QWindowsXPStyle
    * [207242] Fixed a static memleak.
    * [206418] Fixed missing focus rect on tool buttons.
    * [188850] Fixed a problem with offsets for sliders.
    * [110091] Tool buttons with arrows are not styled using black
      windows arrows due to consistency issues with the native theme.

- QWizard
    * [204643] Make sure the maximum size of QWizard is computed properly.

- QWorkspace
    * [125281] fixed active child to be the same when minimizing and restoring
      the main window.

- QtWebKit
    * ACID3 score 100 out of 100.
    * Added support for plugins using Netscape Plugin API (NPAPI) for Windows,
      Mac OS X, and X11.
    * [211228] Fixed invisible focus rectangle on push buttons.
    * [211256] Fixed dragging an image from the web view.
    * [211273] Fixed static build of Qt with QtWebKit.
    * [213966] Fixed wrong placement of native widget plugins after scrolling.
    * [214946] Ensured native plugin instances are deleted properly.
    * [217574] Fixed cursor problem on text input field after focus change.
    * [218957] Fixed rendering of form elements when using Windows style.
    * [219344] Added a remark that some web actions have an effect only
      when contentEditable is true.
    * [220127] Fixed mouse right click still allowed for disabled view.
    * [222544] Added an option to print background elements.
    * [222558] Fixed input method does not work after changing the focus.
    * [222710, 222713] Fixed issues with TinyMCE editor.
    * [223447] Ensured that CSS with relative path works on Windows.
    * [224539] Fixed linkClicked() emitted only once for local anchor URLs.
    * [225062] Fixed links do not work for QWebView embedded in QGraphicsScene.
    * [227053] Fixed problem with percent encoded URLs.
    * [230175] Fixed video rendering when embedded in Graphics View.
    * [235270] Showed module name when plugin loading fails.
    * [238330] Prevented multiple instantiation of native widget plugin.
    * [238391] Prevented crash when printing to file is cancelled.
    * [238662] Fixed function keys are not mapped.
    * [241050] Implemented proper painting of CSS gradient.
    * [241144] Ensured proper actions for some web action types.
    * [241239] Ensured plugins are not loaded when disabled.
    * [231301] Fixed an issue on Windows mobile when switching between input
      modes.

- Q3ButtonGroup
    * [238902] Q3ButtonGroup now looks for children recursively rather than
      just the direct children like it did in Qt 3.
    * [200764] Fixed insertion of buttons with IDs in arbitrary order.

- Q3FileDialog
    * [230979] Fixed a crash after a resize and drag on scroll bars.

- Q3MainWindow
    * [240766] Crash while resizing the window while updating layouts.

- Q3ListView
    * [225648] Fixes infinite update.

- Q3ProgressBar
    * [132254] Fixed incorrect painting when totalSteps = 0.
    * [231137] Fixes progress bar disappearing if you set a style sheet to the
      application.

- StyleSheets
    * [224095] Fixed white space inside palette().
    * Fixed setting style on the application may change the appearance of some
      widgets.
    * [209123] Fixed Stylesheets causing unnecessary paint events on
      enterEvent() and leaveEvent().
    * [209123] Fixed setting gradient background to custom widget.

- QXmlQuery
    * [223539] Summary: "node" and other typekind keywords are not allowed as
      an element name when part of for loop.

- QXmlStreamReader
    * [207024] Added the QXmlStreamAttribute::hasAttribute() function.
    * [231516] Regression: QXmlStreamWriter produces garbage in "version"
      attribute of XMLDeclaration.

****************************************************************************
*                          Examples and demos                              *
****************************************************************************

- Pad Navigator example
    * [236416] Provide a minimum window size for this example.
    * [208616] No longer builds in console mode on Windows.

- Diagram Scene example
    * [244996] Fix crash when changing the font of a text item and then
      select other items.

****************************************************************************
*                          Database Drivers                                *
****************************************************************************

- Interbase driver

- MySQL driver

****************************************************************************
*                             QTestLib                                     *
****************************************************************************

 - QTestLib now supports writing benchmarks.
 - Fixed an issue where tests returned exit code 0, even though tests
   failed in some rare cases.

****************************************************************************
*                      Platform Specific Changes                           *
****************************************************************************

Unix
    * Made the iconv-based QTextCodec class (the "System" codec on
      Unix systems that support it) stateful. So it's now possible to
      feed incomplete multibyte sequences to the toUnicode function,
      as well as the first character in a UTF-16 surrogate pair.

X11
    * Added a QGtkStyle to integrate with GTK+ based desktop environments.
    * If font config is used the default font-substitutions will no longer be
      used instead we rely on fontconfig to determine font substitutions as
      required.
    * Improved support for KDE4 desktop settings.
    * [214071] Improved support for custom freedesktop icon themes.
    * [195256] Use FreeType's subpixel filtering if available, thus honoring
      Font Config's LCD filter settings.
    * Added supported for XFIXES X11 extension for proper clipboard
      support when non-Qt application owns the clipboard.
    * Icon support for top level windows (_NET_WM_ICON) was improved
      to support several icons with different sizes.
    * [211240] In some cases QFileSystemWatcher didn't notify about
      files that were moved over another files.
    * [238743] Added support for the _NET_SYSTEM_TRAY_VISUAL property
      to use the same visual the system tray manager asks us to use.
    * [229593] Fix font matching with old fontconfig versions.
    * [167873] Proper event compression for mouse events when using tablets.
    * [208181] Fix averageCharWidth to be consistent for y!=x ppem
    * [229070] Fix QPrintDialog assertion
    * [211678] Fixed a problem with drawing a QPixmaps on different X11
      screens.
    * [221362] Fixed a problem where pixmaps only appeared on the first page
      in a print preview.
    * [232666] Fixed a problem with custom page sizes for CUPS printers.
    * [228770] Fixed a problem that caused the .ps and .pdf filename
      extensions
      to not update in the CUPS printer dialog when printing to file.
    * [230372] Fixed a problem where the number of copies set on a QPrinter
      object wasn't picked up and updated properly in a QPrintDialog.

Windows
    * Cleartype rendering was previously supported onto QImages with
      an ARGB32 channel. For performance reasons, cleartype is now
      only supported on opaque images using the RGB32 or
      ARGB32_Premultipled format. Widget and pixmap rendering is
      unchanged
    * [175075] Antialiased font rendering quality has been greatly improved
      by taking gamma correction into account. We should now match the native
      Windows font rendering better, and the fonts look better in general when
      drawing fonts on different backgrounds.
    * [221132] Fixed a problem with System Tray menu visibility.
    * [221653] Fixed a problem incorrectly causing a Task Bar status change.
    * [202890] Improved platform consistency with spacing in menus.
    * [157323] QCombobox now slides to open on relevant platforms.
    * [237067] Calling showMessage on QSystemTrayIcon with empty arguments
      now hides the current message.
    * [145612] Setting an object name for a QThread sets the name that
      is visible in the debugger for more easy debugging
      multi-threaded application.
    * [216664] QLocale now follows the current system locale when the
      user changes it in the Windows Control Panel.
    * [223921] Fix writing system detection of TrueType fonts added
      via a QByteArray in QFontDatabase::addApplicationFont on Windows.
    * [205455] 'mailto:' links works properly with QDesktopServices::openUrl().
    * [205516] standardPalette() now returns the system palette for XP and
      Vista styles.
    * [207506] Fixed an issue which switches the alignment for input widgets
      on Vista.
    * [223951] Added support for VARIANT with IDispatch in ActiveQt.
    * [224910] Fixed a crash when using the Hierarchy ActiveQt example.
    * [201223] 'dumpcpp' now prepends the 'classname_' to resolve conflicts.
    * [198556] QAxServer registering now takes care of '.' before MIME
      extension.
    * [223973] Fixed a deadlock in QLocalSocket.
    * [193077] Fixed activation of ActiveQt widgets in MFC MDI applications.
    * [238273] Fixed a crash while editing QTableView using japanese IME.
    * [238672] Fixed a crash when deleting a widget while dragging.
    * [241901] ActiveQt now supports [out VARIANT*] parameters.
    * Fix a GDI object leak on the qfileiconprovider.
    * [200269] Application and systray icons on Windows that had an alpha
      channel were not drawn correctly.
    * [239558] Fix a possible crash when reading XPM data containing trigraphs
      with the Microsoft compilers.
    * [204440] Fixed a problem with software rendering contexts on Windows,
      which might have caused rendering errors due to to unresolved extension
      pointers.
    * [232263] Fixed a problem with binding textures to a software context
      under Windows.
    * [238715] Fixed a problem with alpha-blended cursors under Windows.
    * [227297] and [232666] Fixed some problems with custom paper
      sizes under Windows.
    * [217259] The default printer wasn't correcly detected with some versions
      of Windows.
    * [212886] Fixed a problem with network printers not being listed by
      the QPrinterInfo::availablePrinters() function under Windows.
    * [205985] Fixed a problem with reusing a QPrinter object to print several
      jobs with the Microsoft XPS printer driver.
    * [196281] Fixed QPrinter::setPrintRange() to work under Windows.

Windows CE
    * Support for QLocalSocket and QLocalServer added.
    * QtWebKit and Phonon are now supported.
    * One can mark a widget with the attribute WA_ExpectsKeyboardInput
      to automatically display / hide the standard input panel on focus
      events.
    * [223523] Reimplementations of standard library functions filled the
      global namespace causing problems when linking statically to other third
      party libraries using the same attempt.
    * Support for using OpenSSL with Qt on Windows CE

Mac OS X
    * Added the macdeployqt tool that simplifies application deployment.
    * Improved support of widget stylesheet in Mac.
    * [218980] - Stacking order of windows and dialogs is fixed, such that
      dialogs always floats above normal windows, even when the dialog is told
      to behave as a window.
    * [219844] - A crash that occurred when using the search buttons on a
      native file dialog is fixed.
    * [225705] - FileDialog filters not displaying correctly is fixed.
    * [239155] - Pop-ups will now close when clicking on a window other than
      the modal window that opened the pop-up.
    * [210912] - Show event not sent when reshowing a window from minimized
      state is fixed.
    * [228017] - QMenu will now close when expanding a system menu.
    * Added support for Qt to use Cocoa as its backend instead of Carbon. This
      is primarily for 64-bit applications, but is also available for 32-bit
      frameworks as well. 32-bit is still Carbon by default. Passing a 64-bit
      architecture or -cocoa on the command-line will build Qt against Cocoa.
      Using Cocoa requires Mac OS X 10.5 (or higher) and cannot be used with
      the -static nor -no-frameworks option. The define QT_MAC_USE_COCOA is
      available when Qt is built against Cocoa.
    * Fix a bug that would prevent a window that had been maximized via
      setMaximized() to go back to normal size when clicking on the window's
      maximize button.
    * Added QMacCocoaViewContainer for embedding Cocoa (NSView) controls into
      a Qt hierarchy. This feature works for either Carbon or Cocoa, but
      requires Mac OS X 10.5 or greater.
    * Added QMacNativeWidget for embedding Qt widgets into non-Qt windows
      (Carbon or Cocoa).
    * Added MacWindowToolBarButtonHint for controlling whether or not the
      toolbar button is shown in Qt windows.
    * QEvents posted via QEventLoop::postEvent() are now treated as a standard
      event loop source, like timers and normal input events. This means that
      is should no longer be necessary to run a busy loop to sendPostedEvents()
      when QApplication is not the main event loop (e.g. when using Qt in a
      plugin).
    * [239646] Shortcuts for sub-menu are now disabled when the menu item is
      disabled.
    * [241434] Honor the LSBackgroundOnly attribute if it exists in the
      application's Info.plist.
    * [239908] More robustness when encountering different types in reading
      LSUIElement value.
    * [234742] Add support Qt::XButton1 and Qt::XButton2.
    * [236203] Much better support for loading multiple Qt's with different
      namespaces.
    * Add Qt::AA_MacPluginApplication that allows bypassing some native menu
      bar initialization that is usually not desired when running Qt in a
      plugin.
    * [205297] Applications Dialogs are now marked as application modal in
      Carbon.
    * Tooltip base is now set correctly in the application palette.
    * [222912] [241603] Qt applications no longer reset their palette back to
      the system palette on every application activate. Only if the values
      from the system are different from the last time. This should result in
      custom palette colors/brushes being kept across application activations.
    * [211758] Fixed a clipping problem when printing multiple pages on a Mac
      OS X printer.
    * [212884] Fixed a crash when printing images on Mac OS X.
    * [219877] Fixed a problem with a QPrinter object not being valid after
      setting the output format to PDF or PostScript.
    * [229406] Fixed crash when display mirroring gets enabled.
    * [189588] Fixed a bug where QColorDialog::getColor(...) always returned a
      valid color.

Qt for Embedded Linux
 - Screen drivers
   * The SVGAlib driver is no longer supported, due to architectural changes.
   * [235785] Detect VGA16 video mode and warn that it is not supported.

 - Mouse and keyboard drivers
   * [243374] Fixed bug where PC mouse driver could not be loaded when
     configured as loadable plugins.
   * Added Linux Input Subsystem mouse and keypad drivers

 - General fixes
   * [242922] Run as server by default when compiled with the
     QT_NO_QWS_MULTIPROCESS macro defined.
   * Fixed bugs where wrong cursor would be shown in some cases.
   * Respect min/max size on initial show also for windows without a layout.
   * Fixed loading of font plugins when QT_NO_FREETYPE is defined.
   * Autodetect PowerPC in configure.
   * Add support for precompiled headers.

****************************************************************************
*                      Compiler Specific Changes                           *
****************************************************************************

****************************************************************************
*                          Tools                                           *
****************************************************************************

- Build System
    * [218795] add support for -nomake configure option on Windows to
      exclude build parts like on other platforms
    * The -tablet configure option on X11 was renamed to -xinput
    * [136723] Have moc issue a warning if a Q_PROPERTY declaration does not
      contain a READ accessor function.
    * [188529] Fixed bug that caused moc to get stuck in an infinite loop if
      two files included eachother and the include path had the prefix "./".
    * [203379] Changed moc code generator so that lint no longer reports
      problems with the generated code.
    * [210879] moc no longer generates any implementation for pure virtual
       signals.
    * [234909] Fixed bug that caused moc to treat /*/ as a full C comment.

- Assistant

- Designer
    * Added filter widgets in Widget Box and Property Editor.
    * Added layout state display to Object Inspector.
    * Enabled changing the layout type of laid-out containers.
    * Added handling of spanning QFormLayout columns.
    * Added convenience dialog to quickly populate QFormLayouts.
    * Added support for embedded device design profiles.
    * Changed the selection modifiers to comply to standards; enabled
      rectangle selection using the middle mouse button; added
      shift-click-modifier to cycle parents when selecting.
    * Added "translatable" flag and disambiguation comment to string
      properties.
    * Added attribute editors to item-based widgets.
    * Changed QUiLoader to use QXmlStreamReader instead of QDom.
    * Ui files with unknown elements are now rejected.
    * [123592] While dropping a dock widget a main window - make the dock
      "docked".
    * [126269] Added the ability to morph widgets into compatible widgets.
    * [126997] Added support for QButtonGroup.
    * [145813] Added a listing function to obtain the available layouts to
      QUiLoader.
    * [155837] Added support for QWizard.
    * [164520] Added automatic detection of changes to the qrc resource files
      from external sources.
    * [166501] Added "translatable" checkbox to string properties making it
      possible to exclude it from the translation.
    * [171900] Indicate Qt 3 compatibility signals and slots using a different
      color.
    * [173873] Position pasted widgets at mouse position if possible.
    * [183637] Introduced Widget Box "Icon view" mode to reduce scrolling,
      available via context menu.
    * [183671] Added automatic retranslation upon language change of UIs
      loaded via QUiLoader.
    * [185283] Added incremental search facility to Object Inspector.
    * [191789] Added pkgconfig-Files for Qt Designer libraries.
    * [198414] Enabled promotion of QMenu/QMenuBar by object inspector context
      menu.
    * [201505] Extended QDesignerIntegration::objectNameChanged() to pass on
      old object name.
    * [202256] Fixed action editor and object inspector not to resize header
      when switching forms.
    * [211422] Fixed QScrollArea support to handle custom QScrollArea widgets
      with internal children.
    * [211906] Enable promotion of unmanaged widgets by object inspector
      context menu.
    * [211962] Enabled widgets to span columns in a QFormLayout.
    * [212378] Made the rich text editor dialog, the plain text editor dialog
      and the style sheet editor dialog remember their geometry.
    * [213481] Fixed a crash while form loading by preventing it from
      adding layouts to unknown layout types.
    * [219381] Fixed Action editor to reflect changing the shortcut in the
      property editor.
    * [219382] Added tooltip, checkable and shortcut properties to the action
      editor dialog.
    * [219405] Added support for the stretch and minimum size properties of
      QBoxLayout and QGridLayout.
    * [219492] Added an icon preview to the resource image file dialog on X11.
    * [220148] Fixed handling of the QMainWindow::unifiedTitleAndToolBarOnMac
      property.
    * [223114] Fixed a crash on removing a dynamic QUrl property.
    * [229568] Added Q3ComboBox.
    * [230818] Fixed a bug which caused duplicate names to occur when
      copying & pasting spacers.
    * [233403] Fixed a painting bug which caused red line layout markers to
      disappear depending on grid settings.
    * [233711] Added a warning when saving a container-extension-type
      container with unmanaged pages.
    * [234222] Fixed a bug which caused the autoFillBackground property to be
      reset during Drag and Drop operations.
    * [234326] Fixed the QDesignerIntegration::objectNameChanged() signal to
      work correctly.
    * [236193] Fixed a crash caused by invalid QSizePolicy values resulting
      from Qt 3 conversion.
    * [238524] Ignore constructor-added items of custom widgets inheriting
      QComboBox.
    * [238707] Fixed pkgconfig file generation to honour -qt-libinfix.
    * [238907] Disabled reordering of Spacers and Layouts causing uic to
      warn "<name> isn't a valid widget".
    * [232811] Correctly show empty string values in preview.
    * [214637] Single click expands/collapses classes in property editor
    * [241949] Update the object inspector properly in case of undoing a
      reparent widget command.

- uic
  * Ui files with unknown XML elements are now rejected.
  * [220796] Added code for adding items to widgets of class Q3ComboBox.

- uic3

  * [231911] Fixed the conversion of boolean font attributes.
  * [233802] Fixed -extract option on Windows.
  * [236193] Fixed the conversion of QSizePolicy's "Ignored" value.

- Linguist

  - Linguist GUI

    * Much improved form preview tool
    * Removed translations column from message index for it being useless.
    * Phrasebooks have language settings now
    * [141788] Support translating into multiple languages simultaneously.
    * [183210] Whitespace is now visualized
    * [182866] Font resizing in translation textedits
    * [187765] Support opening files via Drag & Drop

  - Entire Linguist toolchain

   - [201713] Add support for specifying the source language.

    - file formats

      * The .qm files now can be read back by the toolchain, not only Qt.
      * Added support for GNU Gettext .po files.

      - Qt's own .ts format

        * New element <extracomment> to store purely informative comments
        * New element <translatorcomment> to store comments from translators
        * New element wildcard <extra:*> to support user extensions
        * New elements <oldsource> and <oldcomment> to store values from
          before the last heuristic merge by lupdate

  - lupdate

    * Parse //: and /*: */ comments as extra comments for translations.
    * Added support for new QT_TR*() macros.
    * Added support for QtScript.
    * Better error reporting.
    * More accurate processing of .pro files.
    * Added options -disable-heuristic, -nosort, -target-language,
      -source-language.
    * [197391] Support for storing source code references with relative
      line numbers or no references at all. Omit line numbers from .ui file
      references at all. These reduce the size of patches and avoid merge
      conflicts. Option -locations.
    * [197818] Add support for UTF-16 encoded sources.
    * [209778, 222637] Somewhat improved C++ parser, in particular with
      respect to namespaces.
    * [218671] Accept Q_DECLARE_TR_FUNCTIONS.
    * [212465] Default context is now the empty string, not "@default".
      This codifies what previously was an intermittent bug.
    * [220459] Collect all source code references for each message.

  - lconvert

    * New tool for converting between file formats and filtering file contents.

- configure

- qtconfig
  * Added option to set style and palette settings back to system defaults.

- qt3to4
  * [218928] [219127] [219132] [219482] Misc. updates to the porting replacement rules.

****************************************************************************
*                          Plugins                                         *
****************************************************************************

- QTiffPlugin
- QSvgIconEngine

****************************************************************************
*                   Important Behavior Changes                             *
****************************************************************************

- Event filters

- QFileDialog
        On Mac, native dialogs are now used when calling show, open, or exec
        on a QFileDialog, QColorDialog, QPrintDialog, or QFontDialog (i.e not
        only when using the static functions)

        QFileDialog/QFileSystemModel always return Qt separators ("/")
        regardless of the platform. It can still handle native separators for
        Windows. To convert the Qt separators to native separators use
        QDir::toNativeSeparators().

- QGraphicsTextItem
        Tab input is send to the document by default, inserting a <tab>
        character. You can get the old behavior of switching Tab focus by
        setting setTabChangesFocus(true) (QGraphicsTextItem's Tab handling now
        behaves identically to QTextEdit and QTextBrowser).

- QGraphicsView
        QGraphicsView now propagates Qt::Key_Tab and Qt::Key_Backtab to the
        scene, which sends this to the items. Similar to how QWidget works,
        this event is caught in QGraphicsItem::sceneEvent() and
        QGraphicsWidget::event() to handle tab input. Tab input is also
        proxied to embedded widgets. This allows and item or widget to handle
        Tab keys (e.g., text input).

- QLocale
        The locale database was updated to the Unicode CLDR database
        version 1.6.1

        When the system locale is changed, the LocaleChange event will
        be sent to all widgets that don't have a locale explicitely
        set.

- QWebPage
        Starting with Qt 4.5, the base brush is used for the default
        background color of the web page. Before, it was the background
        brush.

- QWidget
        Font and palette settings assigned to QWidget directly take
        precedence over application fonts and palettes.

        Focus policies that are set on a widget are now propagated to
        a focus proxy widget if there is one.

        Windows with fixed size (that are set with QWidget::setFixedSize()
        function or Qt::MSWindowsFixedSizeDialogHint window hint) might
        not have a maximize button on the titlebar.

        The behaviour of the window hints was changed to follow the
        documentation. When the Qt::CustomizeWindowHint is set, the
        window will not have a titlebar, system menu and titlebar
        buttons unless the corresponding window hints were explicitely
        set.

        Setting Qt::WA_PaintOnScreen no longer has any effect on
        normal widgets. The flag can still be used in conjuction with
        reimplementing paintEngine() to return 0 so that GDI or
        DirectX can be used, as previously documented.