New Classes and Functions in Qt 6.1

This page contains a comprehensive list of all new classes and functions introduced in Qt 6.1.

New Classes

New Member Functions

Class QByteArray:

QByteArray::iterator erase(QByteArray::const_iterator first, QByteArray::const_iterator last)
qsizetype erase(QByteArray &ba, const T &t)
qsizetype erase_if(QByteArray &ba, Predicate pred)
QByteArray &removeIf(Predicate pred)

Class QColorSpace:

void setTransferFunction(const QList<uint16_t> &transferFunctionTable)
void setTransferFunctions(const QList<uint16_t> &redTransferFunctionTable, const QList<uint16_t> &greenTransferFunctionTable, const QList<uint16_t> &blueTransferFunctionTable)
QColorSpace withTransferFunction(const QList<uint16_t> &transferFunctionTable) const
QColorSpace withTransferFunctions(const QList<uint16_t> &redTransferFunctionTable, const QList<uint16_t> &greenTransferFunctionTable, const QList<uint16_t> &blueTransferFunctionTable) const

Class QFuture:

QFuture<T> onCanceled(QObject *context, Function &&handler)
QFuture<T> onFailed(QObject *context, Function &&handler)
QFuture<ResultType<Function>> then(QObject *context, Function &&function)

Class QHash:

qsizetype erase_if(QHash<Key, T> &hash, Predicate pred)
qsizetype removeIf(Predicate pred)

Class QJSEngine:

void throwError(const QJSValue &error)

Class QJSPrimitiveValue:

bool operator!=(const QJSPrimitiveValue &lhs, const QJSPrimitiveValue &rhs)
QJSPrimitiveValue operator*(const QJSPrimitiveValue &lhs, const QJSPrimitiveValue &rhs)
QJSPrimitiveValue operator+(const QJSPrimitiveValue &lhs, const QJSPrimitiveValue &rhs)
QJSPrimitiveValue operator-(const QJSPrimitiveValue &lhs, const QJSPrimitiveValue &rhs)
QJSPrimitiveValue operator/(const QJSPrimitiveValue &lhs, const QJSPrimitiveValue &rhs)
bool operator<(const QJSPrimitiveValue &lhs, const QJSPrimitiveValue &rhs)
bool operator<=(const QJSPrimitiveValue &lhs, const QJSPrimitiveValue &rhs)
bool operator==(const QJSPrimitiveValue &lhs, const QJSPrimitiveValue &rhs)
bool operator>(const QJSPrimitiveValue &lhs, const QJSPrimitiveValue &rhs)
bool operator>=(const QJSPrimitiveValue &lhs, const QJSPrimitiveValue &rhs)

Class QLabel:

QTextDocument::ResourceProvider resourceProvider() const
void setResourceProvider(const QTextDocument::ResourceProvider &provider)

Class QLayout:

Class QList:

qsizetype erase(QList<T> &list, const AT &t)
qsizetype erase_if(QList<T> &list, Predicate pred)
qsizetype removeIf(Predicate pred)

Class QLocale:

QLocale::Script codeToScript(QStringView scriptCode)
QString scriptToCode(QLocale::Script script)

Class QMap:

qsizetype erase_if(QMap<Key, T> &map, Predicate pred)
QMap::size_type removeIf(Predicate pred)

Class QMetaType:

Class QMultiHash:

qsizetype erase_if(QMultiHash<Key, T> &hash, Predicate pred)
qsizetype removeIf(Predicate pred)

Class QMultiMap:

qsizetype erase_if(QMultiMap<Key, T> &map, Predicate pred)
QMultiMap::size_type removeIf(Predicate pred)

Class QSGOpenGLTexture:

QSGTexture *fromNativeExternalOES(GLuint textureId, QQuickWindow *window, const QSize &size, QQuickWindow::CreateTextureOptions options)

Class QNetworkCookie:

QNetworkCookie::SameSite sameSitePolicy() const
void setSameSitePolicy(QNetworkCookie::SameSite sameSite)

Class QOperatingSystemVersion:

QVersionNumber version() const

Class QQmlPropertyMap:

void freeze()
void insert(const QVariantHash &values)

Class QQuickGraphicsConfiguration:

QByteArrayList preferredInstanceExtensions()

Class QSet:

qsizetype erase_if(QSet<T> &set, Predicate pred)
QSet::iterator insert(QSet::const_iterator it, const T &value)
qsizetype removeIf(Pred pred)

Class QSocketNotifier:

bool isValid() const
void setSocket(qintptr socket)

Class QSslSocket:

QString activeBackend()
QList<QString> availableBackends()
QList<QSsl::ImplementedClass> implementedClasses(const QString &backendName)
bool isClassImplemented(QSsl::ImplementedClass cl, const QString &backendName)
bool isFeatureSupported(QSsl::SupportedFeature ft, const QString &backendName)
bool isProtocolSupported(QSsl::SslProtocol protocol, const QString &backendName)
bool setActiveBackend(const QString &backendName)
QList<QSsl::SupportedFeature> supportedFeatures(const QString &backendName)
QList<QSsl::SslProtocol> supportedProtocols(const QString &backendName)

Class QString:

QString::iterator erase(QString::const_iterator first, QString::const_iterator last)
qsizetype erase(QString &s, const T &t)
qsizetype erase_if(QString &s, Predicate pred)
QString fromUtf8(const char8_t *str)
QString &removeIf(Predicate pred)

Class QStringView:

QStringView::const_iterator constBegin() const
QStringView::const_iterator constEnd() const
bool contains(const QRegularExpression &re, QRegularExpressionMatch *rmatch) const
qsizetype count(const QRegularExpression &re) const
qsizetype indexOf(const QRegularExpression &re, qsizetype from, QRegularExpressionMatch *rmatch) const
qsizetype lastIndexOf(const QRegularExpression &re, qsizetype from, QRegularExpressionMatch *rmatch) const

Class QStyle:

QString name() const

Class QTextDocument:

QTextDocument::ResourceProvider defaultResourceProvider()
QTextDocument::ResourceProvider resourceProvider() const
void setDefaultResourceProvider(const QTextDocument::ResourceProvider &provider)
void setResourceProvider(const QTextDocument::ResourceProvider &provider)

Class QUntypedBindable:

bool isReadOnly() const
QUntypedPropertyBinding takeBinding()

Class QVarLengthArray:

qsizetype erase(QVarLengthArray<T, Prealloc> &array, const AT &t)
qsizetype erase_if(QVarLengthArray<T, Prealloc> &array, Predicate pred)
qsizetype removeAll(const AT &t)
qsizetype removeIf(Predicate pred)
bool removeOne(const AT &t)

New Functions in Namespaces

QFuture<T> makeExceptionalFuture(std::exception_ptr exception)
QFuture<T> makeExceptionalFuture(const QException &exception)

New Global Functions

typename std::enable_if_t<std::is_unsigned_v<T> || std::is_signed_v<T>, bool> qAddOverflow(T v1, T v2, T *result)
auto qHypot(Tx x, Ty y, Tz z)
auto qHypot(Tx x, Ty y)
auto qHypot(F first, Fs... rest)
typename std::enable_if_t<std::is_unsigned_v<T> || std::is_signed_v<T>, bool> qMulOverflow(T v1, T v2, T *result)
typename std::enable_if_t<std::is_unsigned_v<T> || std::is_signed_v<T>, bool> qSubOverflow(T v1, T v2, T *result)

New Enum Types

enum class SameSite { Default, None, Lax, Strict }
enum class ImplementedClass { Key, Certificate, Socket, DiffieHellman, EllipticCurve, …, DtlsCookie }
enum class SupportedFeature { CertificateVerification, ClientSideAlpn, ServerSideAlpn, Ocsp, Psk, …, Alerts }

New Type Aliases

New Properties

New Variables

© 2023 The Qt Company Ltd. Documentation contributions included herein are the copyrights of their respective owners. The documentation provided herein is licensed under the terms of the GNU Free Documentation License version 1.3 as published by the Free Software Foundation. Qt and respective logos are trademarks of The Qt Company Ltd. in Finland and/or other countries worldwide. All other trademarks are property of their respective owners.