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+Qt 4.2.3 is a bug-fix release. It maintains both forward and backward
+compatibility (source and binary) with Qt 4.2.0.
+
+The Qt version 4.2 series is binary compatible with the 4.1.x and 4.0.x
+series. Applications compiled for 4.0 or 4.1 will continue to run with 4.2.
+
+****************************************************************************
+* General *
+****************************************************************************
+
+General Improvements
+--------------------
+
+- Configuration/Compilation
+ * Fixed architecture detection on UltraSPARC-T1 systems.
+ * Fixed compilation on embedded architectures when qreal is not double.
+ * Compile on OpenBSD.
+
+- Documentation
+ * Completed documentation for "Implementing Atomic Operations",
+ which is useful for people porting Qt to a new hardware architecture.
+
+- Translations
+ * Added a new unofficial Portuguese translation courtesy of Helder
+ Correia.
+
+- Qt Linguist
+ * Made the columns in the phrasebook resizeable.
+
+- lupdate
+ * Fixed bug in the .pro parser of lupdate. It should accept backslashes.
+ * Fixed a severe slowdown in lupdate. (~400x speedup.)
+ * Fixed traversal of subdirectories.
+
+- moc
+ * Don't create trigraphs in the generated code for C++ casts.
+
+- uic
+ * Fixed a bug that generated excessive margins for Q3GroupBox.
+
+Third party components
+----------------------
+
+- libpng
+
+ * Security fix: Avoid null dereferences.
+
+****************************************************************************
+* Library *
+****************************************************************************
+
+General improvements
+--------------------
+
+- Graphics View
+
+ * Calling QGraphicsScene::update() without arguments now correctly
+ updates the entire scene.
+ * Changing the background brush in QGraphicsScene now correctly updates
+ the entire scene
+ * Fixed a crash in QGraphicsScene due to stale pointers in the BSP tree.
+ * QGraphicsScene::createItemGroup() now allows you to create an empty
+ group (previously caused an assert in debug mode).
+ * Fixed rendering bugs with QGraphicsPixmapItem::offset().
+ * Adding an item to a QGraphicsScene now always implicitly causes an
+ update.
+ * Fixed a crash caused by deleting a QGraphicsScene that is being viewed
+ by a QGraphicsView.
+ * Items with zero width or height (e.g., a horizontal or vertical line
+ with a zero-width cosmetic pen) are now rendered correctly.
+ * Fixed a crash in QGraphicsScene::destroyItemGroup(), and when removing
+ items from a group.
+
+- Item views
+ * Fixed data loss in QTreeWidget, QTableWidget and QListWidget that
+ occurred when performing a drag and drop copy operation on items
+ containing data in custom roles.
+
+ * Fixed signal emission bugs in QSqlQueryModel and QSqlTableModel that
+ caused the view to contain invalid items when used with a
+ QSortFilterProxyModel.
+
+ * Fixed a bug in word-wrapped text that could cause all new-line
+ characters, and the last line in string containing at least one
+ newline character, to be removed.
+
+ * Fixed bug in QListView where the last item of a batch was not always
+ displayed.
+
+- QAction
+ * Fixed a possible crash when using alternate shortcuts on a QAction.
+
+- QByteArray
+ * Fixed a crash in toUpper().
+
+- QCleanlooksStyle
+ * Indeterminate progress bars are now correctly animated.
+
+- QComboBox
+ * Fixed broken case sensitive completion.
+ * Changing the font on a QComboBox now changes the font on the popup as
+ well.
+
+- Q3TextEdit
+ * Fixed regression where some shortcuts didn't work on Mac OS X.
+
+- Q3Canvas
+ * Fixed potential memory overrun when determining a clipping chunk.
+
+- Q3Socket
+ * Fixed unexpected remote disconnection bugs (also QTcpSocket).
+
+- QFile
+ * Performance enhancements in QFile::copy().
+ * Allow reading past the previous end of the file if the file grows.
+ * Reliably allow QFile::readLine() and QFile::readAll() to be used to
+ read from stdin on all platforms.
+
+- QFileDialog
+ * Fixed crash that could occur when the filter began with ';;'.
+ * Fixed assertion caused by calling setFilters() with an empty list.
+ * Fixed problem with file entries not being laid out correctly.
+
+- QGridLayout
+ * Fixed bug in handling of fixed size spacers spanning multiple
+ rows/columns
+
+- QLayout
+ * Fixed bug caused by setting minimumSize() and SizePolicy::Fixed on a
+ widget that implements minimumSizeHint() but not sizeHint().
+
+- QLineEdit
+ * Fixed crash caused by moving the cursor over a QChar::LineSeparator
+ in the text.
+
+- QPainter
+ * Fixed bug in QPainter::drawPoints() when using the raster paint engine
+ which caused some points to be missing.
+ * Removed memory leak in raster paint engine when drawing complex
+ polygons/paths.
+
+- QProcess
+ * Fixed a crash that could occur when calling QProcess::waitForFinished()
+ from inside a slot connected to a signal emitted by QProcess.
+ * Fixed a race condition on Windows where QProcess::bytesToWrite() would
+ return a short byte count.
+
+- QTextDocument
+ * Fixed find() with backward searches.
+ * Match CSS style selector case insensitively.
+ * Fixed HTML import for tables with missing cells and rowspan/colspan
+ attributes.
+
+- QSortFilterProxyModel
+ * Fixed a crash caused by calling filterChanged().
+ * Fixed a crash caused by removing items from the source model.
+ * Fixed a bug that could cause a model to enter an invalid state when
+ filtering items in a hierarchy, causing items in a QTreeView to
+ erroneously be collapsed.
+ * Fixed a bug that could cause invalid items to be added when inserting
+ new items to the source model.
+
+- QSyntaxHighlighter
+ * Fixed failing assertion that could occur when installing a syntax
+ highlighter before the document has created a layout.
+
+- QPluginLoader
+ * Fixed compilation of Q_EXPORT_PLUGIN when used with templates.
+
+- QTcpSocket
+ * Fixed a bug where QTcpSocket would time out when connecting to a
+ closed service on Windows.
+ * Fixed a race condition when calling waitFor...() functions with a very
+ short timeout value.
+ * Fixed unexpected remote disconnect problems on Windows.
+ * Improved the reliability of the waitFor...() functions with SOCKS5
+ proxy support.
+
+- QTextLayout
+ * Fixed rendering of surrogate pairs and cursor navigation with them.
+
+- QTextEdit
+ * Fixed crash in QTextEdit::setExtraSelection() that could occur when
+ used with null cursors.
+ * Fixed scrollbar bug which could cause the bottom of the text to be
+ unreachable.
+
+- QTextStream
+ * Fixed QTextStream::readLine() so it can be used reliably with stdin on
+ all platforms, and updated the documentation to reflect this.
+
+- QMacStyle
+ * Ensured that tab bars are drawn correctly regardless of the font used.
+
+- QMenuBar
+ * Properly marked the "text heuristic matching" strings for translation.
+
+- QMenu
+ * Fixed incorrect scrolling on large menus on Mac OS X.
+
+- QPlastiqueStyle
+ * Ensured that indeterminate progress bars are now always animated and
+ fixed a rendering bug.
+
+- QPrinter
+ * Fixed a bug on X11 that caused the printer to generate too many
+ copies.
+ * Fixed a bug in the PostScript driver that could cause invalid
+ PostScript to be generated.
+
+- QSqlRelationalTableModel
+ * Ensured that the internal cache is cleared after
+ QSqlRelationalTableModel::submitAll() is called.
+
+- QSqlDriver
+ * Ensured that QSqlDriver::formatValue() doesn't cut off characters from
+ field names.
+
+- QTextTable
+ * Removed false assertion when deleting the first row or column in a
+ table.
+ * Fixed crash when splitting cells in the rightmost column of a table.
+ * Fixed issue where QTextTable::splitCells() would shift cells further
+ down in the table.
+ * Fixed crash in QTextTable::mergeCells() caused by merging an already
+ merged cell.
+
+- QToolTip
+ * Fixed QToolTip sizes when used with HTML tags like <BR>.
+
+- QUdpSocket
+ * Fixed a busy-wait causing the event loop to spin when writing a
+ datagram to an unbound port.
+ * QUdpSocket now reliably emits readyRead() in connected mode.
+
+- QUrl
+ * Fixed a crash that would occur as a result of calling errorString() on
+ an empty URL.
+
+- SQL plugins
+ * Prevent crashes in QSqlQuery after reopening a closed ODBC connection.
+ * Prevent crash when retrieving binary data from ODBC.
+ * The Interbase driver now returns a valid handle through
+ QSqlDriver::handle().
+
+- QMutex
+ * Fixed race condition in QMutex::tryLock() that would prevent all
+ other threads from acquiring the mutex
+
+- QList
+ * Fixed crash when modifying a QList that must be detached from a
+ separate thread
+
+- QWidget
+ * Fixed case where a modal dialog could be stacked below its parent
+ window when the dialog was shown first
+ * Fixed an erroneous hideEvent() from being sent immediately after
+ window creation
+ * Fixed problem with missing text in QWidget::whatsThis().
+
+- QWindowsStyle
+ * Fixed a crash that could occur when deleting a QProgressBar after its
+ style was changed.
+
+- QVariant
+ * Fixed assertion caused by streaming in a variant containing a float.
+
+- QAbstractItemView
+ * Fixed focus problem with cell widgets.
+
+- QTableView
+ * Fixed problem with context menus clearing the selections.
+
+- QHeaderView
+ * Fixed assertion that could occur when removing all sections when some
+ sections had been moved.
+ * Fixed a bug that could prevent the user from resizing the last
+ visible section if the "real" last section was invisible.
+
+- QListView
+ * Fixed crash when calling reset.
+
+- QTableWidget
+ * Fixed painting problem that could occur when rows were swapped.
+
+- QTreeView
+ * Fixed a crash that could appear when removing all the children of an
+ item.
+
+****************************************************************************
+* Platform Specific Changes *
+****************************************************************************
+
+X11
+---
+ * Fixed detection of Type1 symbol fonts.
+ * Fixed crash on exit in QSystemTrayIcon when QApplication is used
+ as the parent.
+ * Fixed animation GUI effects on tooltips, menus, and comboboxes.
+ * Fixed crashes in threaded programs when Qt uses the Glib main
+ loop.
+ * Fixed bug where an empty LANG environment variable could prevent input
+ of non-ASCII chars in Qt widgets.
+ * Fixed leak of initial style created by QApplication after calling
+ QApplication::setStyle().
+ * Fixed erroneous event delivery to a widget that has been destroyed.
+ * Prevent shortcuts for keypad arrow keys from being activated when
+ Num Lock is on.
+ * Fixed bug which caused incorrect drawing of subrectangles of bitmaps.
+ * Fixed bug in rendering of the Bengali script.
+
+Windows
+-------
+ * Fixed compilation with -no-stl.
+ * Fixed compilation with Windows SDK for Vista.
+ * Fixed an issue that could cause missing text when Cleartype was used.
+ * Fixed the hot-spot locations for OpenHandCursor and CloseHandCursor.
+ * Fixed infinite warning loop about adopted threads in applications with
+ many threads.
+ * Fixed assertion caused by hiding a child widget whose window has not
+ yet been created.
+ * Fixed QWindowsXPStyle so that it is possible to draw a
+ QStyle::CE_DockWidgetTitle without having an actual instance of
+ QDockWidget.
+ * Fixed crash when drawing text with large font sizes.
+ * Fixed support for the Khmer language.
+ * Fixed incorrect reporting of frameGeometry() after a window is closed.
+ * Fixed crash when handling spurious WM_CHAR from Remote Desktop Client.
+ * Fixed crash in JPEG plugin while loading.
+ * Fixed crash in QFileDialog::getExistingDirectory() when specifying
+ a parent that has not been shown yet.
+
+Mac OS X
+--------
+ * Fixed regression where dragging/copying Unicode text in Qt to another
+ application would only export the non-Unicode version.
+ * Fixed regression where releasing the mouse button would send two mouse
+ releas events to a widget.
+ * Fixed regression where the drop action would be reset after a native
+ "DragLeave" event was received.
+ * Wrapping a (non-Qt) window's content view and resizing before showing
+ the window for the first time now works correctly.
+ * Ensured that the content view is always created before we QWidgets are
+ added to a window - this allows better integration with Cocoa apps.
+ * Fixed regression where text/uri-list was inadvertently disabled for
+ clipboards.
+ * Fixed regression where setting the brushed metal style on a message
+ box would show the label in a non-metallic style.
+ * Fixed the open source binary package to have the correct definitions
+ for development.
+
+Qtopia Core
+-----------
+ * Fixed a data corruption bug in QDataStream on ARM processors where
+ reading and writing doubles/qreals would be incompatible with streams
+ on other platforms.
+ Note: corrupt data streams generated with previous versions of Qtopia
+ Core on ARM platforms cannot be read with this version.
+ * Fixed a possible buffer overflow in the VNC driver.
+ * Fixed a memory leak in the windowing system.
+ * Fixed painting errors occuring with use of QT::WA_PaintOnScreen on
+ certain screen configurations.
+ * Improved performance when using a 16-bit brush as the background on a
+ 16-bit screen.
+ * Improved performance of 16-bit semi-transparent solid fills.
+ * Fixed crash that could occur when saving a 16-bit image in BMP or PPM
+ formats.
+ * Fixed bug where window icons would not be shown in Plastique style.
+ * Fixed bug in QWSServer::setMaxWindowRect() on rotated displays.
+ * Fixed crash with normalized Unicode characters and QPF fonts.
+ * Ensured that QWidget::minimumSize() does not become larger than the
+ screen size.
+