1 Some of the changes listed in this file include issue tracking numbers
2 corresponding to tasks in the Qt Bug Tracker:
4 http://bugreports.qt.nokia.com/
6 Each of these identifiers can be entered in the bug tracker to obtain more
7 information about a particular change.
10 ****************************************************************************
11 * Source incompatible changes *
12 ****************************************************************************
15 - QSslCertificate::subjectInfo() and QSslCertificate::issuerInfo() now
16 return a QStringList instead of a QString
18 - QSslCertificate::isValid() has been deprecated. Originally it only checked
19 the certificate dates, but later checking for blacklisting was added. Now
20 there's a more specific QSslCertificate::isBlacklisted() method.
22 - Unite clipping support has been removed from QPainter. The alternative is
23 to unite QRegion's and using the result on QPainter.
25 - QLibrary::resolve() now returns a function pointer instead of a void
28 - QSslCertificate::alternateSubjectNames() is deprecated (but can be enabled
29 via QT_DISABLE_DEPRECATED_BEFORE), use
30 QSslCertificate::subjectAlternativeNames() instead.
32 - QLibraryInfo::buildKey() has been removed. Likewise, the QT_BUILD_KEY
33 preprocessor #define has also been removed. The build-key is obsolete
34 and is no longer necessary.
36 - QCoreApplication::translate() will no longer return the source text when
37 the translation is empty. Use lrelease -removeidentical for optimization.
39 - Qt::escape() is deprecated (but can be enabled via
40 QT_DISABLE_DEPRECATED_BEFORE), use QString::toHtmlEscaped() instead.
42 - QMetaType::construct() has been renamed to QMetaType::create().
45 * The QTRY_VERIFY and QTRY_COMPARE macros have been moved into QTestLib.
46 These macros formerly lived in tests/shared/util.h but are now provided
47 by including the <QtTest/QtTest> header.
48 * The QTEST_NOOP_MAIN macro has been removed from the API. If a test is
49 known at compile-time to be inapplicable for a particular build it should
50 be omitted via .pro file logic, or the test should call QSKIP in the
51 initTestCase() method to skip the entire test and report a meaningful
52 explanation in the test log.
53 * The DEPENDS_ON macro has been removed from the API. This macro did nothing
54 and misled some users to believe that they could make test functions depend
55 on each other or impose an execution order on test functions.
56 * The QTest::qt_snprintf function has been removed from the API. This was an
57 internal testlib function that was exposed in the public API due to its use
58 in a public macro. Any calls to this function should be replaced by a call
59 to qsnprintf(), which comes from the <QtCore/QByteArray> header.
60 * The QTest::pixmapsAreEqual() function has been removed from the API.
61 Comparison of QPixmap objects should be done using QCOMPARE, which provides
62 more informative output in the event of a failure.
63 * The QSKIP macro no longer has the "mode" parameter, which caused problems
64 for calculating test metrics, as the SkipAll mode hid information about
65 what test data was skipped. Calling QSKIP in a test function now behaves
66 like SkipSingle -- skipping a non-data-driven test function or skipping
67 only the current data row of a data-driven test function. Every skipped
68 data row is now reported in the test log.
70 - The QSsl::TlsV1 enum value was renamed to QSsl::TlsV1_0 .
73 * Internal QAccessible::State enum value HasInvokeExtension removed
74 - QAccessibleInterface:
75 * The "child" integer parameters have been removed. This moves the api
76 to be closer to IAccessible2.
77 This means several functions lose their integer parameter:
78 text(Text t, int child) -> text(Text t), rect(int child) -> rect()
79 setText(Text t, int child, const QString &text) -> setText(Text t, const QString &text)
80 role(int child) -> role(), state(int child) -> state()
81 relationTo(int child, const QAccessibleInterface *other, int otherChild) ->
82 relationTo(const QAccessibleInterface *other)
83 * Accessible-Action related functions have been removed. QAccessibleInterface
84 subclasses are expected to implement the QAccessibleActionInterface instead.
85 These functions have been removed:
86 QAccessibleInterface::userActionCount, QAccessibleInterface::actionText,
87 QAccessibleInterface::doAction
88 - QAccessibleEvent also loses the child parameter.
89 QAccessibleEvent(Type type, int child) -> QAccessibleEvent(Type type)
90 QAccessibleEvent::child() removed.
91 - QAccessibleActionInterface:
92 * Refactored to be based on action names. All functions have been changed from using
93 int parameters to strings.
95 - QSound has been moved from QtGui to QtMultimedia
99 * The DeviceType enum and deviceType() have been deprecated due to
100 the introduction of QTouchDevice.
102 * The signature of the constructor has changed. It now takes a
103 QTouchDevice pointer instead of just a DeviceType value.
105 * TouchPointState no longer includes TouchPointStateMask and
106 TouchPointPrimary. The primary flag is now stored together with
107 other touch point flags and is accessible through
108 TouchPoint::isPrimary() or TouchPoint::flags(). As a result the
109 internally used state mask is no longer necessary.
111 * QWidget *widget() has been removed and is replaced by QObject
112 *target() in order to avoid QWidget dependencies.
114 - QWindowSystemInterface:
116 * The signature of all handleTouchEvent() variants have changed,
117 taking a QTouchDevice* instead of just a DeviceType value.
118 Platform or generic plug-ins have to create and register at least
119 one QTouchDevice before sending the first touch event.
121 * The event type parameter is removed from handleTouchEvent().
123 - The previously exported function qt_translateRawTouchEvent() has been removed.
124 Use QWindowSystemInterface::handleTouchEvent() instead.
126 - QAbstractEventDispatcher
128 * The signature for the pure-virtual registerTimer() has changed. Subclasses
129 of QAbstractEventDispatcher will need to be updated to reimplement the new
130 pure-virtual 'virtual void registerTimer(int timerId, int interval,
131 Qt::TimerType timerType, QObject *object) = 0;'
133 * QAbstractEventDispatcher::TimerInfo is no longer a QPair<int, int>. It is
134 now a struct with 3 members: struct TimerInfo { int timerId; int interval;
135 Qt::TimerType timerType; }; Reimplementations of
136 QAbstractEventDispatcher::registeredTimers() will need to be updated to pass
137 3 arguments to the TimerInfo constructor (instead of 2).
139 ****************************************************************************
141 ****************************************************************************
146 - The directory structure of the qtbase unit-tests has been reworked to
147 more closely match the directory structure of the code under test.
148 Integration tests have been moved to tests/auto/integrationtests.
150 Third party components
151 ----------------------
156 ****************************************************************************
158 ****************************************************************************
162 * drop a bogus QChar::NoCategory enum value; the proper QChar::Other_NotAssigned
163 value is returned for an unassigned codepoints now.
165 * layoutAboutToBeChanged is no longer emitted by QAbstractItemModel::beginMoveRows.
166 layoutChanged is no longer emitted by QAbstractItemModel::endMoveRows. Proxy models
167 should now also connect to (and disconnect from) the rowsAboutToBeMoved and
172 * Accessibility has been refactored. The hierachy of accessible objects is implemented via
173 proper parent/child functions instead of using navigate which has been deprecated for this purpose.
174 Table and cell interfaces have been added to qaccessible2.h
176 * Touch events and points have been extended to hold additional
177 information like capability flags, point-specific flags, velocity,
182 * QWidget::setInputContext() is removed. Input contexts are now platform
187 * QHostAddress::isLoopback() API added. Returns true if the address is
188 one of the IP loopback addresses.
190 * QSslCertificate::serialNumber() now always returns the serial number in
203 * [QTBUG-20615] Autotests can now log test output to multiple destinations
204 and log formats simultaneously.
207 ****************************************************************************
209 ****************************************************************************
212 ****************************************************************************
213 * Platform Specific Changes *
214 ****************************************************************************
222 * Accessibility framework uses IAccessible2
229 Qt for Embedded Linux
230 ---------------------
237 ****************************************************************************
238 * Compiler Specific Changes *
239 ****************************************************************************
242 ****************************************************************************
244 ****************************************************************************
259 * [QTBUG-20785] The moc now has a -b<file> option to #include an additional
260 file at the beginning of the generated file.
271 * QMAKE_MOC_OPTIONS variable is now available for passing additional parameters
281 ****************************************************************************
283 ****************************************************************************
286 ****************************************************************************
287 * Important Behavior Changes *
288 ****************************************************************************
292 * QPointer itself is now deprecated, and the implementation of QPointer
293 has been changed to use QWeakPointer. The old guard mechanism has been
294 removed. This causes two slight changes in behavior when using
297 * When using QPointer on a QWidget (or a subclass of QWidget), previously
298 the QPointer would be cleared by the QWidget destructor. Now, the QPointer
299 is cleared by the QObject destructor (since this is when QWeakPointers are
300 cleared). Any QPointers tracking a widget will NOT be cleared before the
301 QWidget destructor destroys the children for the widget being tracked.
303 * When constructing a QSharedPointer to take ownership of an object after a
304 QPointer is already tracking the object. Previously, the shared pointer
305 construction would not be affected by the QPointer, but now that QPointer
306 is implemented using QWeakPoiner, constructing the QSharedPointer will