1Qt 4.6.2 is a bug-fix release. It maintains both forward and backward
2compatibility (source and binary) with Qt 4.6.0 and 4.6.1.  For more
3details, refer to the online documentation included in this
4distribution. The documentation is also available online:
5
6  http://qt.nokia.com/doc/4.6
7
8The Qt version 4.6 series is binary compatible with the 4.5.x series.
9Applications compiled for 4.5 will continue to run with 4.6.
10
11Some of the changes listed in this file include issue tracking numbers
12corresponding to tasks in the Qt Bug Tracker, the (now obsolete) Task
13Tracker, or the Merge Request queue of the public source repository.
14
15Qt Bug Tracker: http://bugreports.qt.nokia.com
16Task Tracker:   http://qt.nokia.com/developer/task-tracker
17Merge Request:  http://qt.gitorious.org
18
19
20****************************************************************************
21*                          Library                                         *
22****************************************************************************
23
24QtCore
25------
26
27 - QAtomicPointer
28    * [QTBUG-7356] Fixed a compilation failure when using the Intel
29      compiler on IA-64
30 - QFile
31    * Fixed double-buffering issue when opening files in buffered mode.
32    * [QTBUG-7285] QFile::remove would() fail if an unrelated operation on the
33      same instance had been previously failed. This manifested itself in
34      QTemporaryFile failing to auto-remove files and QFile::copy() leaving
35      temporary files behind in certain situations.
36 - QFSFileEngine
37    * Fix typo that made realpath() not be used.
38 - QIODevice
39    * Optimized readAll().
40 - QReadWriteLock
41    * [MR 426] Fixed documentation.
42 - QXmlStreamWriter
43    * [QTBUG-6893] Fixed adding extra Byte Order Marks when writing to a
44      .xml file.
45
46QtGui
47-----
48
49 - QApplication
50    * [QTBUG-6098] Added a flag to avoid construction of application panes.
51    * [QTBUG-7029] Fixed a crash when re-creating QApplication object due
52      to a dangling gesture manager pointer.
53 - QAbstractScrollArea
54    * [QTBUG-1760] Reverted horizontal scrolling with mouse wheel when vertical
55      scrollbar is hidden
56 - QBmpHandler
57    * [QTBUG-7530] Fixed an infinite loop that could occur when reading invalid
58      BMP images.
59 - QGraphicsEffect
60    * [QTBUG-6901] Fixed performance problem when translating items with
61      graphics effects.
62 - QImage
63    * [QTBUG-7231] Avoid an unnecessary copy in QImage::scaled().
64 - QInputContext
65    * [QTBUG-7439] Avoided the loss of preedit text when losing focus on
66      Symbian.
67 - QPDFEngine
68    * [QTBUG-7249] Fixed the encoding of the Tile and Creator tags in the PDF
69      engine.
70 - [QT-2629] Implemented event filter functions for Symbian.
71 - [QTBUG-7198] Setting a style sheet could break the checkbox position in
72   item views.
73 - [QTBUG-7253] Fixed wrong stroke clipping with the raster engine when using
74   a QPen with a style other than SolidLine.
75
76QtDBus
77------
78
79 - QDBusConnection
80    * [QT-2307] Fixed sending of D-Bus method calls with QDBus::BlockWithGui.
81
82QtNetwork
83---------
84
85 - QNetworkAccessManager
86    * Optimizations
87    * HTTP: Get rid of QAbstractSocket warnings that were sometimes displayed.
88    * HTTP: setReadBufferSize() of the QNetworkReply finally is working on all
89      layers.
90    * [QTBUG-7713] HTTP: Fix bug related to re-sending a request.
91    * [QTBUG-7060] Fixed an issue with parsing of HTTP headers like
92      "private, max-age=300".
93 - QSslCertificate
94    * [QTBUG-6466] Fix issuerInfo() and subjectInfo().
95 - QTcpSocket
96    * [QTBUG-7344] Fix performance degredation with write() on Windows.
97    * [QTBUG-7316,QTBUG-7317] Handle unknown errors from socket engine.
98
99QtOpenGL
100--------
101
102 - [QTBUG-7490] Better support for user-generated binary shaders.
103 - QGLPixelBuffer
104    * [QTBUG-7476] Fixed a crash under X11 when drawing QPixmaps to
105      QGLPixelBuffers.
106 - QGL2PaintEngineEx
107    * [QTBUG-7203] Reset the GL stencil mask, op and function in resetGLState().
108 - QGLWidget
109    * [QTBUG-7213] Fixed QGLWidget::renderPixmap() on Windows.
110
111
112QtOpenVG
113--------
114
115 - [QTBUG-7791] Optimize single-rect IntersectClip in OpenVG using the scissor.
116 - [QTBUG-7864] Use OpenVG scissor on 90/180/270 rotations and simple clips.
117
118QtMultimedia
119------------
120
121 - QAudioInput
122    * [QTBUG-7044]: QAudioInput stopped working correctly after
123      suspend()/resume() on linux.
124
125Examples
126--------
127
128 - QtMultimedia
129    * [MR 418] Fixed the example for QAudioOutput.
130 - WebKit
131    * [MR 2235] Added the framecapture example to the default build.
132
133
134****************************************************************************
135*                      Platform Specific Changes                           *
136****************************************************************************
137
138Qt for Linux/X11
139----------------
140 - Fix a bug where QPixmap::serialNumber was not set on a transformed pixmap
141   in Qt/X11.
142 - Fixed a crash when an input method tries to create a widget after the
143   application is destroyed.
144 - [QTBUG-6952] Fixed a problem using NoButtons in spinbox with QGtkStyle.
145 - [QTBUG-7504] Fixed missing focus rect on check- and radiobutton with
146    some GTK+ themes.
147 - [QTBUG-6522] Fixed missing menu separator in some GTK+ themes.
148
149Qt for Mac OS X
150---------------
151
152 - [QTBUG-7832]: Restored missing margins around non-unified toolbars.
153 - [QTBUG-7312]: Menubar and dock disappear after hiding a fullscreen widget
154   on Cocoa.
155 - [QTBUG-7481]: Re-added the Close button in QPrintPreviewDialog for
156   Mac/Carbon.
157 - [QTBUG-7522]: Drawing fake buttons using QMacStyle+QStyleOptionViewItemV4
158   lead to crash.
159 - [QTBUG-7625]: Calling showFullScreen() then showNormal() on a widget results
160   in top menu hiding.
161 - [QTBUG-7086]: QFileDialog now correctly responds to fileMode & acceptMode
162   changes.
163 - [QTBUG-7162]: Fixed a crash in Designer when previewing a QMainWindow with
164   native toolbar.
165 - [QTBUG-7305]: Fixed a crash when deleting QMainWindow with native toolbar
166   on Cocoa.
167 - [QTBUG-6882]: Fixed a text layout issue with QHeaderView in right-to-left
168   mode.
169
170DirectFB
171--------
172
173 - Fix a bug where QPixmap::serialNumber was not set on a transformed pixmap
174   in DirectFB.
175 - Reimplement QPixmapData::scroll for QDirectFBPixmapData which optimizes
176   QPixmap::scroll.
177 - Fix a rendering issue for semi-transparent top level windows in DirectFB.
178 - Make it possible to fall back to the raster engine for stretch blits in
179   DirectFB using QT_NO_DIRECTFB_STRETCHBLIT.
180
181Qt for Symbian
182--------------
183
184 - [QTBUG-6556] Improve the DEF file handling scheme, to allow simple enable/
185   disable of DEF file usage (for use _during development only_ to decouple
186   the need to update the DEF files at the precise point that symbols are
187   removed, therefore allowing builds by CI systems to succeed even if symbols
188   have been removed.  This does not remove the need to update the DEF files
189   before release.  NOTE: Builds generated using this flag are not binary
190   compatible with previous versions of Qt.)
191 - QProcess
192   * [QTBUG-7667] Fixed no-timeout case for QProcess::waitForFinished.
193 - qmake
194   * [QTBUG-7695] Added support for ifdeffing for manufacturer in generated
195     pkg files.
196   * [QTBUG-7908] Smart installer package generation support.
197 - Patch_capabilities script
198    * Added support for embedded sis name/uid patching.
199 - Qt deployment
200    * [QTBUG-7518] Backup and restore support for Qt libs.
201
202
203****************************************************************************
204*                          Tools                                           *
205****************************************************************************
206
207 - Designer
208   * [QTBUG-6965] Enabled editing seconds of QDateTime-type properties.
209   * [QTBUG-6757] Fixed bug where selection handles would be affected by
210     a style sheet set on the main form.
211
212 - uic3
213   * [QTBUG-7404] Added option to preserve layout names set by Qt 3 Designer.
214
215****************************************************************************
216* Important Behavior Changes *
217****************************************************************************
218
219 - QNetworkAccessManager cache
220   * QNetworkAccessManager will no longer return expired pages, as
221     stated in the documentation
222   * The behaviour of PreferCache and PreferNetwork modes now match
223     the documentation more closely
224
225 - QUrl
226    * QUrl will now accept hostnames ending in dot and will not treat
227      those as invalid hostnames
228