New Classes and Functions in Qt 6.6
This page contains a comprehensive list of all new classes and functions introduced in Qt 6.6.
- New Namespaces
- New Classes
- New Member Functions
- New Functions in Namespaces
- New Global Functions
- New Macros
- New Enum Types
- New Enum Values
- New Type Aliases
- New Properties
- New Variables
- New QML Types
- New QML Properties
- New QML Signals
- New QML Methods
New Namespaces
| (since 6.6)namespace | QWebEngineGlobalSettings | 
New Classes
- R
- QRhi
- QRhiBuffer
- QRhiColorAttachment
- QRhiCommandBuffer
- QRhiComputePipeline
- QRhiD3D11InitParams
- QRhiD3D11NativeHandles
- QRhiDepthStencilClearValue
- QRhiDriverInfo
- QRhiGles2InitParams
- QRhiGles2NativeHandles
- QRhiGraphicsPipeline
- QRhiInitParams
- QRhiMetalCommandBufferNativeHandles
- QRhiMetalInitParams
- QRhiMetalNativeHandles
- QRhiNativeHandles
- QRhiNullInitParams
- QRhiNullNativeHandles
- QRhiReadbackDescription
- QRhiReadbackResult
- QRhiRenderBuffer
- QRhiRenderPassDescriptor
- QRhiRenderTarget
- QRhiResource
- QRhiResourceUpdateBatch
- QRhiSampler
- QRhiScissor
- QRhiShaderResourceBinding
- QRhiShaderResourceBindings
- QRhiShaderStage
- QRhiStats
- QRhiSwapChain
- QRhiSwapChainHdrInfo
- QRhiSwapChainProxyData
- QRhiSwapChainRenderTarget
- QRhiTexture
- QRhiTextureCopyDescription
- QRhiTextureRenderTarget
- QRhiTextureRenderTargetDescription
- QRhiTextureSubresourceUploadDescription
- QRhiTextureUploadDescription
- QRhiTextureUploadEntry
- QRhiVertexInputAttribute
- QRhiVertexInputBinding
- QRhiVertexInputLayout
- QRhiViewport
- QRhiVulkanCommandBufferNativeHandles
- QRhiVulkanInitParams
- QRhiVulkanNativeHandles
- QRhiVulkanRenderPassNativeHandles
New Member Functions
Class QAbstractOAuthReplyHandler:
| (since 6.6)void | tokenRequestErrorOccurred(QAbstractOAuth::Error error, const QString &errorString) | 
Class QBluetoothAddress:
| (since 6.6)size_t | qHash(const QBluetoothAddress &key, size_t seed) | 
Class QBluetoothPermission:
| (since 6.6)QBluetoothPermission::CommunicationModes | communicationModes() const | 
| (since 6.6)void | setCommunicationModes(QBluetoothPermission::CommunicationModes modes) | 
Class QBluetoothUuid:
| (since 6.6)QBluetoothUuid | fromCBUUID(CBUUID *cbUuid) | 
| (since 6.6)CBUUID * | toCBUUID() const | 
Class QByteArray:
| (since 6.6)QByteArray & | assign(QByteArrayView v) | 
| (since 6.6)QByteArray & | assign(InputIterator first, InputIterator last) | 
| (since 6.6)QByteArray & | assign(qsizetype n, char c) | 
Class QDebug:
| (since 6.6)QDebug & | operator<<(std::chrono::duration<Rep, Period> duration) | 
Class QDnsLookup:
| (since 6.6)void | setNameserver(const QHostAddress &nameserver, quint16 port) | 
Class QElapsedTimer:
| (since 6.6)QElapsedTimer::Duration | durationElapsed() const | 
| (since 6.6)QElapsedTimer::Duration | durationTo(const QElapsedTimer &other) const | 
Class QFileInfo:
| (since 6.6)QDateTime | birthTime(const QTimeZone &tz) const | 
| (since 6.6)QDateTime | fileTime(QFileDevice::FileTime time, const QTimeZone &tz) const | 
| (since 6.6)std::filesystem::path | filesystemReadSymLink() const | 
| (since 6.6)QDateTime | lastModified(const QTimeZone &tz) const | 
| (since 6.6)QDateTime | lastRead(const QTimeZone &tz) const | 
| (since 6.6)QDateTime | metadataChangeTime(const QTimeZone &tz) const | 
| (since 6.6)QString | readSymLink() const | 
Class QFileSystemModel:
| (since 6.6)QDateTime | lastModified(const QModelIndex &index, const QTimeZone &tz) const | 
Class QHostAddress:
| (since 6.6)bool | isPrivateUse() const | 
Class QJSPrimitiveValue:
| (since 6.6)const void * | constData() const | 
| (since 6.6)void * | data() | 
| (since 6.6)const void * | data() const | 
| (since 6.6)QMetaType | metaType() const | 
| (since 6.6)QJSPrimitiveValue | to() const | 
Class QList:
| (since 6.6)QList<T> & | assign(std::initializer_list<T> l) | 
| (since 6.6)QList<T> & | assign(InputIterator first, InputIterator last) | 
| (since 6.6)QList<T> & | assign(qsizetype n, QList<T>::parameter_type t) | 
Class QMessageAuthenticationCode:
| (since 6.6)QMessageAuthenticationCode & | operator=(QMessageAuthenticationCode &&other) | 
| (since 6.6)QByteArrayView | resultView() const | 
| (since 6.6)void | swap(QMessageAuthenticationCode &other) | 
Class QMessageBox:
| (since 6.6)void | setOption(QMessageBox::Option option, bool on) | 
| (since 6.6)bool | testOption(QMessageBox::Option option) const | 
Class QMetaEnum:
| (since 6.6)QMetaType | metaType() const | 
Class QMetaProperty:
| (since 6.6)bool | write(QObject *object, QVariant &&v) const | 
| (since 6.6)bool | writeOnGadget(void *gadget, QVariant &&value) const | 
Class QMetaType:
| (since 6.6)QMetaType | underlyingType() const | 
Class QMutex:
| (since 6.6)bool | tryLock(QDeadlineTimer timer) | 
Class QSGD3D12Texture:
| (since 6.6)QSGTexture * | fromNative(void *texture, int resourceState, QQuickWindow *window, const QSize &size, QQuickWindow::CreateTextureOptions options) | 
Class QNtfsPermissionCheckGuard:
| (since 6.6)bool | qAreNtfsPermissionChecksEnabled() | 
| (since 6.6)bool | qDisableNtfsPermissionChecks() | 
| (since 6.6)bool | qEnableNtfsPermissionChecks() | 
Class QObject:
| (since 6.6)bool | setProperty(const char *name, QVariant &&value) | 
Class QOpcUaClient:
| (since 6.6)QOpcUaConnectionSettings | connectionSettings() const | 
| (since 6.6)void | setConnectionSettings(const QOpcUaConnectionSettings &connectionSettings) | 
Class QPalette:
| (since 6.6)const QBrush & | accent() const | 
| (since 6.6)bool | operator==(const QPalette &p) const | 
Class QPdfDocument:
| (since 6.6)int | pageIndexForLabel(const QString &label) | 
Class Key:
| (since 6.6)size_t | qHash(const QPixmapCache::Key &key, size_t seed) | 
Class QPointer:
| (since 6.6)QPointer<T> & | operator=(const QPointer<X> &other) | 
Class QProcess:
| (since 6.6)void | setUnixProcessParameters(const QProcess::UnixProcessParameters ¶ms) | 
| (since 6.6)void | setUnixProcessParameters(QProcess::UnixProcessFlags flagsOnly) | 
| (since 6.6)QProcess::UnixProcessParameters | unixProcessParameters() const | 
Class QPromise:
| (since 6.6)bool | addResults(const QList<T> &results) | 
| (since 6.6)bool | emplaceResult(Args &&... args) | 
| (since 6.6)bool | emplaceResultAt(int index, Args &&... args) | 
Class QProtobufMessage:
| (since 6.6)bool | setProperty(QAnyStringView propertyName, QVariant &&value) | 
Class QQmlEngine:
| (since 6.6)void | markCurrentFunctionAsTranslationBinding() | 
Class QQuick3DGeometry:
| (since 6.6)void | addTargetAttribute(quint32 targetId, QQuick3DGeometry::Attribute::Semantic semantic, int offset, int stride) | 
| (since 6.6)void | addTargetAttribute(const QQuick3DGeometry::TargetAttribute &attribute) | 
| (since 6.6)void | setTargetData(const QByteArray &data) | 
| (since 6.6)void | setTargetData(int offset, const QByteArray &data) | 
| (since 6.6)QQuick3DGeometry::TargetAttribute | targetAttribute(int index) const | 
| (since 6.6)int | targetAttributeCount() const | 
| (since 6.6)QByteArray | targetData() const | 
Class QQuickGraphicsConfiguration:
| (since 6.6)void | setTimestamps(bool enable) | 
| (since 6.6)bool | timestampsEnabled() const | 
Class QQuickGraphicsDevice:
| (since 6.6)QQuickGraphicsDevice | fromRhi(QRhi *rhi) | 
Class QQuickRenderControl:
| (since 6.6)QRhiCommandBuffer * | commandBuffer() const | 
| (since 6.6)QRhi * | rhi() const | 
Class QQuickRenderTarget:
| (since 6.6)QQuickRenderTarget | fromD3D12Texture(void *texture, int resourceState, uint format, const QSize &pixelSize, int sampleCount) | 
| (since 6.6)QQuickRenderTarget | fromRhiRenderTarget(QRhiRenderTarget *renderTarget) | 
Class QQuickWindow:
| (since 6.6)QSGTexture * | createTextureFromRhiTexture(QRhiTexture *texture, QQuickWindow::CreateTextureOptions options) const | 
| (since 6.6)QRhi * | rhi() const | 
| (since 6.6)QRhiSwapChain * | swapChain() const | 
Class QReadWriteLock:
| (since 6.6)bool | tryLockForRead(QDeadlineTimer timeout) | 
| (since 6.6)bool | tryLockForWrite(QDeadlineTimer timeout) | 
Class QRecursiveMutex:
| (since 6.6)bool | tryLock(QDeadlineTimer timeout) | 
Class QSGRenderNode:
| (since 6.6)QRhiCommandBuffer * | commandBuffer() const | 
| (since 6.6)QRhiRenderTarget * | renderTarget() const | 
Class QSemaphore:
| (since 6.6)bool | tryAcquire(int n, QDeadlineTimer timer) | 
Class QSharedMemory:
| (since 6.6)QNativeIpcKey | nativeIpcKey() const | 
| (since 6.6)void | setNativeKey(const QNativeIpcKey &key) | 
Class QSignalSpy:
| (since 6.6)bool | wait(std::chrono::milliseconds timeout) | 
Class QSqlField:
| (since 6.6)void | swap(QSqlField &other) | 
Class QSqlIndex:
| (since 6.6)QSqlIndex & | operator=(QSqlIndex &&other) | 
Class QSqlQuery:
| (since 6.6)QString | boundValueName(int pos) const | 
| (since 6.6)QStringList | boundValueNames() const | 
Class QSqlRecord:
Class QString:
| (since 6.6)QString & | assign(QAnyStringView v) | 
| (since 6.6)QString & | assign(InputIterator first, InputIterator last) | 
| (since 6.6)QString & | assign(qsizetype n, QChar c) | 
| (since 6.6)QString | fromEcmaString(emscripten::val jsString) | 
| (since 6.6)emscripten::val | toEcmaString() const | 
Class QStringDecoder:
| (since 6.6)char16_t * | appendToBuffer(char16_t *out, QByteArrayView in) | 
Class QTextListFormat:
Class QTextToSpeech:
| (since 6.6)void | aboutToSynthesize(qsizetype id) | 
| (since 6.6)qsizetype | enqueue(const QString &utterance) | 
| (since 6.6)QList<QVoice> | findVoices(Args &&... args) const | 
| (since 6.6)void | sayingWord(const QString &word, qsizetype id, qsizetype start, qsizetype length) | 
| (since 6.6)void | synthesize(const QString &text, Functor &&functor) | 
| (since 6.6)void | synthesize(const QString &text, const QObject *context, Functor &&functor) | 
Class QThread:
| (since 6.6)void | sleep(std::chrono::nanoseconds nsecs) | 
Class QUuid:
| (since 6.6)QUuid | fromBytes(const void *bytes, QSysInfo::Endian order) | 
| (since 6.6)QUuid | fromUInt128(quint128 uuid, QSysInfo::Endian order) | 
| (since 6.6)QUuid::Id128Bytes | toBytes(QSysInfo::Endian order) const | 
| (since 6.6)quint128 | toUInt128(QSysInfo::Endian order) const | 
Class Id128Bytes:
| (since 6.6)QUuid::Id128Bytes | qFromBigEndian(QUuid::Id128Bytes src) | 
| (since 6.6)QUuid::Id128Bytes | qFromLittleEndian(QUuid::Id128Bytes src) | 
| (since 6.6)QUuid::Id128Bytes | qToBigEndian(QUuid::Id128Bytes src) | 
| (since 6.6)QUuid::Id128Bytes | qToLittleEndian(QUuid::Id128Bytes src) | 
Class QVarLengthArray:
| (since 6.6)QVarLengthArray<T, Prealloc> & | assign(std::initializer_list<T> list) | 
| (since 6.6)QVarLengthArray<T, Prealloc> & | assign(InputIterator first, InputIterator last) | 
| (since 6.6)QVarLengthArray<T, Prealloc> & | assign(qsizetype n, const T &t) | 
Class QVariant:
| (since 6.6)T & | emplace(Args &&... args) | 
| (since 6.6)T & | emplace(std::initializer_list<U> list, Args &&... args) | 
| (since 6.6)QVariant | fromStdVariant(std::variant<Types...> &&value) | 
| (since 6.6)QVariant | fromValue(T &&value) | 
| (since 6.6)T & | get(QVariant &v) | 
| (since 6.6)T && | get(QVariant &&v) | 
| (since 6.6)const T & | get(const QVariant &v) | 
| (since 6.6)const T && | get(const QVariant &&v) | 
| (since 6.6)T * | get_if(QVariant *v) | 
| (since 6.6)const T * | get_if(const QVariant *v) | 
Class QWebEnginePage:
| (since 6.6)QString | devToolsId() const | 
Class QWebEngineUrlRequestJob:
| (since 6.6)void | setAdditionalResponseHeaders(const QMultiMap<QByteArray, QByteArray> &additionalResponseHeaders) const | 
Class QWebSocket:
| (since 6.6)void | authenticationRequired(QAuthenticator *authenticator) | 
Class QWidget:
| (since 6.6)void | setTabOrder(std::initializer_list<QWidget *> widgets) | 
Class QXmlStreamReader:
| (since 6.6)bool | hasStandaloneDeclaration() const | 
New Functions in Namespaces
| (since 6.6)QFuture<ValueType> | makeReadyRangeFuture(std::initializer_list<ValueType> values) | 
| (since 6.6)QFuture<QtFuture::ContainedType<Container>> | makeReadyRangeFuture(Container &&container) | 
| (since 6.6)QFuture<std::decay_t<T>> | makeReadyValueFuture(T &&value) | 
| (since 6.6)QFuture<void> | makeReadyVoidFuture() | 
New Global Functions
| (since 6.6)QString | qWebEngineGetDomainAndRegistry(const QUrl &url) | 
New Macros
| (since 6.6) | QT_NO_QEXCHANGE | 
| (since 6.6) | QT_SUPPORTS_INT128 | 
| (since 6.6)qint128 | Q_INT128_C(literal) | 
| (since 6.6) | Q_INT128_MAX | 
| (since 6.6) | Q_INT128_MIN | 
| (since 6.6) | Q_NODISCARD_CTOR | 
| (since 6.6)quint128 | Q_UINT128_C(literal) | 
| (since 6.6) | Q_UINT128_MAX | 
New Enum Types
| (since 6.6)enum | CommunicationMode { Access, Advertise, Default } | 
| (since 6.6)enum class | ReferenceSurface { Map, Globe } | 
| (since 6.6)enum class | Option { DontUseNativeDialog } | 
| (since 6.6)enum class | UnixProcessFlag { ResetSignalHandlers, IgnoreSigPipe, CloseFileDescriptors, UseVFork, CreateNewSession, …, DisableCoreDumps } | 
| (since 6.6)enum class | Capability { None, Speak, PauseResume, WordByWordProgress, Synthesize } | 
New Enum Values
| enum value | BoundaryHint::Utterance | 
| enum value | ColorRole::Accent | 
| enum value | Flag::FetchApiAllowed | 
| enum value | GraphicsApi::Direct3D12 | 
| enum value | Language::Baluchi | 
| enum value | Language::Ligurian | 
| enum value | Language::Rohingya | 
| enum value | Language::Torwali | 
| enum value | Property::ListStart | 
| enum value | RelationFlag::Described | 
| enum value | RelationFlag::DescriptionFor | 
| enum value | RelationFlag::FlowsFrom | 
| enum value | RelationFlag::FlowsTo | 
| enum value | Resource::GraphicsQueueFamilyIndexResource | 
| enum value | Resource::GraphicsQueueIndexResource | 
| enum value | Script::HanifiScript | 
| enum value | TabPosition::Moving | 
| enum value | Type::DevicePixelRatioChange | 
| enum value | WebAction::ChangeTextDirectionLTR | 
| enum value | WebAction::ChangeTextDirectionRTL | 
| enum value | WildcardConversionOption::NonPathWildcardConversion | 
New Type Aliases
New Properties
| 
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New Variables
| (since 6.6) | Windows11_23H2 | 
New QML Types
New QML Properties
QML Type CaptureSession:
| (since 6.6) | windowCapture : WindowCapture | 
QML Type CharacterController:
| (since 6.6) | enableShapeHitCallback : bool | 
QML Type ColorGroup:
| (since 6.6) | accent : color | 
QML Type Dial:
| (since 6.6) | endAngle : real | 
| (since 6.6) | startAngle : real | 
QML Type MediaRecorder:
| (since 6.6) | audioBitRate : int | 
| (since 6.6) | audioChannelCount : int | 
| (since 6.6) | audioSampleRate : int | 
| (since 6.6) | encodingMode : enumeration | 
| (since 6.6) | videoBitRate : int | 
| (since 6.6) | videoFrameRate : real | 
| (since 6.6) | videoResolution : Size | 
QML Type Path:
| (since 6.6) | simplify : bool | 
QML Type PathText:
| (since 6.6) | font.features : object | 
QML Type RenderStats:
| (since 6.6) | lastCompletedGpuTime : real | 
QML Type ScrollView:
| (since 6.6) | effectiveScrollBarHeight : real | 
| (since 6.6) | effectiveScrollBarWidth : real | 
QML Type Shape:
| (since 6.6) | boundingRect : rect | 
| (since 6.6) | preferredRendererType : enumeration | 
QML Type SpinBox:
| (since 6.6) | live : bool | 
QML Type TableView:
| (since 6.6) | selectionMode : enumeration | 
QML Type Text:
| (since 6.6) | font.features : object | 
QML Type TextEdit:
| (since 6.6) | font.features : object | 
QML Type TextInput:
| (since 6.6) | font.features : object | 
QML Type TextToSpeech:
| (since 6.6) | engineCapabilities : enumeration | 
QML Type TreeView:
| (since 6.6) | rootIndex : QModelIndex | 
QML Type XMLHttpRequest:
| (since 6.6) | responseURL : string | 
QML Type voice:
| (since 6.6) | language : enumerator | 
New QML Signals
| (since 6.6) | aboutToSynthesize(number id) | 
| (since 6.6) | sayingWord(string word, int id, int start, int length) | 
| (since 6.6) | shapeHit(PhysicsNode *body, vector3D position, vector3D impulse, vector3D normal) | 
| (since 6.6) | wrapped(Dial.WrapDirection direction) | 
New QML Methods
QML Type TextToSpeech:
| (since 6.6) | enqueue(string utterance) | 
| (since 6.6)list<voice> | findVoices(map criteria) | 
QML Type XMLHttpRequest:
| (since 6.6)void | overrideMimeType(mime) |