diff --git a/src/corelib/global/qlogging.cpp b/src/corelib/global/qlogging.cpp
index 748ca60661..f4fac3f35e 100644
--- a/src/corelib/global/qlogging.cpp
+++ b/src/corelib/global/qlogging.cpp
@@ -1667,7 +1667,7 @@ static bool android_default_message_handler(QtMsgType type,
 #ifdef Q_OS_WIN
 static void win_outputDebugString_helper(QStringView message)
 {
-    const int maxOutputStringLength = 32766;
+    const qsizetype maxOutputStringLength = 32766;
     static QBasicMutex m;
     auto locker = qt_unique_lock(m);
     // fast path: Avoid string copies if one output is enough
@@ -1675,9 +1675,9 @@ static void win_outputDebugString_helper(QStringView message)
         OutputDebugString(reinterpret_cast<const wchar_t *>(message.utf16()));
     } else {
         wchar_t *messagePart = new wchar_t[maxOutputStringLength + 1];
-        for (int i = 0; i < message.length(); i += maxOutputStringLength) {
-            const int length = std::min(message.length() - i, maxOutputStringLength);
-            const int len = message.mid(i, length).toWCharArray(messagePart);
+        for (qsizetype i = 0; i < message.length(); i += maxOutputStringLength) {
+            const qsizetype length = std::min(message.length() - i, maxOutputStringLength);
+            const qsizetype len = message.mid(i, length).toWCharArray(messagePart);
             Q_ASSERT(len == length);
             messagePart[len] = 0;
             OutputDebugString(messagePart);
diff --git a/src/corelib/text/qanystringview.h b/src/corelib/text/qanystringview.h
index ff1f8a4050..68754931e9 100644
--- a/src/corelib/text/qanystringview.h
+++ b/src/corelib/text/qanystringview.h
@@ -217,12 +217,8 @@ public:
     //
     [[nodiscard]] constexpr bool isNull() const noexcept { return !m_data; }
     [[nodiscard]] constexpr bool isEmpty() const noexcept { return empty(); }
-#if QT_DEPRECATED_SINCE(6, 0)
-    [[nodiscard]]
-    Q_DECL_DEPRECATED_X("Use size() and port callers to qsizetype.")
-    constexpr int length() const /* not nothrow! */
-    { return Q_ASSERT(int(size()) == size()), int(size()); }
-#endif
+    [[nodiscard]] constexpr qsizetype length() const noexcept
+    { return size(); }
 
 private:
     [[nodiscard]] friend inline bool operator==(QAnyStringView lhs, QAnyStringView rhs) noexcept
diff --git a/src/corelib/text/qanystringview.qdoc b/src/corelib/text/qanystringview.qdoc
index c1a1681695..cb98fb0052 100644
--- a/src/corelib/text/qanystringview.qdoc
+++ b/src/corelib/text/qanystringview.qdoc
@@ -322,17 +322,11 @@
 
 /*!
     \fn int QAnyStringView::length() const
-    \obsolete
-    Use size() instead, and port callers to qsizetype.
 
-    Same as size(), except that it returns the result as an \c int.
+    Same as size().
 
     This function is provided for compatibility with other Qt containers.
 
-    \warning QAnyStringView can represent strings with more than 2\sup{31} characters.
-    Calling this function on a string view for which size() returns a value greater
-    than \c{INT_MAX} constitutes undefined behavior.
-
     \sa size()
 */
 
diff --git a/src/corelib/text/qbytearrayview.h b/src/corelib/text/qbytearrayview.h
index 4934294a81..02ce49613e 100644
--- a/src/corelib/text/qbytearrayview.h
+++ b/src/corelib/text/qbytearrayview.h
@@ -291,12 +291,8 @@ public:
     //
     [[nodiscard]] constexpr bool isNull() const noexcept { return !m_data; }
     [[nodiscard]] constexpr bool isEmpty() const noexcept { return empty(); }
-#if QT_DEPRECATED_SINCE(6, 0)
-    [[nodiscard]]
-    Q_DECL_DEPRECATED_X("Use size() and port callers to qsizetype.")
-    constexpr int length() const /* not nothrow! */
-    { Q_ASSERT(int(size()) == size()); return int(size()); }
-#endif
+    [[nodiscard]] constexpr qsizetype length() const noexcept
+    { return size(); }
     [[nodiscard]] constexpr char first() const { return front(); }
     [[nodiscard]] constexpr char last()  const { return back(); }
 
diff --git a/src/corelib/text/qbytearrayview.qdoc b/src/corelib/text/qbytearrayview.qdoc
index 36571e53d4..91048c5dad 100644
--- a/src/corelib/text/qbytearrayview.qdoc
+++ b/src/corelib/text/qbytearrayview.qdoc
@@ -470,23 +470,13 @@
     \sa empty(), isEmpty(), isNull()
 */
 
-#if QT_DEPRECATED_SINCE(6, 0)
 /*!
     \fn int QByteArrayView::length() const
-    \obsolete
-    Use size() and port callers to qsizetype.
 
-    Same as size(), but returns the result as an \c int.
-
-    This function is provided for compatibility with other Qt containers.
-
-    \warning QByteArrayView can represent data with more than 2\sup{31} bytes.
-    Calling this function on a byte array view for which size() returns a value greater
-    than \c{INT_MAX} constitutes undefined behavior.
+    Same as size().
 
     \sa empty(), isEmpty(), isNull(), size()
 */
-#endif
 
 /*!
     \fn char QByteArrayView::operator[](qsizetype n) const
diff --git a/src/corelib/text/qstringview.cpp b/src/corelib/text/qstringview.cpp
index 1c3249fbfb..e003f257d7 100644
--- a/src/corelib/text/qstringview.cpp
+++ b/src/corelib/text/qstringview.cpp
@@ -130,11 +130,6 @@ QT_BEGIN_NAMESPACE
     \typedef QStringView::size_type
 
     Alias for qsizetype. Provided for compatibility with the STL.
-
-    Unlike other Qt classes, QStringView uses qsizetype as its \c size_type, to allow
-    accepting data from \c{std::basic_string} without truncation. The Qt API functions,
-    for example length(), return \c int, while the STL-compatible functions, for example
-    size(), return \c size_type.
 */
 
 /*!
@@ -530,14 +525,10 @@ QT_BEGIN_NAMESPACE
 /*!
     \fn int QStringView::length() const
 
-    Same as size(), except returns the result as an \c int.
+    Same as size().
 
     This function is provided for compatibility with other Qt containers.
 
-    \warning QStringView can represent strings with more than 2\sup{31} characters.
-    Calling this function on a string view for which size() returns a value greater
-    than \c{INT_MAX} constitutes undefined behavior.
-
     \sa empty(), isEmpty(), isNull(), size()
 */
 
diff --git a/src/corelib/text/qstringview.h b/src/corelib/text/qstringview.h
index c0082b70b5..e34418e956 100644
--- a/src/corelib/text/qstringview.h
+++ b/src/corelib/text/qstringview.h
@@ -446,8 +446,8 @@ public:
     [[nodiscard]] const_iterator constEnd() const noexcept { return end(); }
     [[nodiscard]] constexpr bool isNull() const noexcept { return !m_data; }
     [[nodiscard]] constexpr bool isEmpty() const noexcept { return empty(); }
-    [[nodiscard]] constexpr int length() const /* not nothrow! */
-    { return Q_ASSERT(int(size()) == size()), int(size()); }
+    [[nodiscard]] constexpr qsizetype length() const noexcept
+    { return size(); }
     [[nodiscard]] constexpr QChar first() const { return front(); }
     [[nodiscard]] constexpr QChar last()  const { return back(); }
 private:
diff --git a/src/corelib/text/qutf8stringview.h b/src/corelib/text/qutf8stringview.h
index 5069bf7b07..a49aa08e4c 100644
--- a/src/corelib/text/qutf8stringview.h
+++ b/src/corelib/text/qutf8stringview.h
@@ -306,12 +306,8 @@ public:
     //
     [[nodiscard]] constexpr bool isNull() const noexcept { return !m_data; }
     [[nodiscard]] constexpr bool isEmpty() const noexcept { return empty(); }
-#if QT_DEPRECATED_SINCE(6, 0)
-    [[nodiscard]]
-    Q_DECL_DEPRECATED_X("Use size() and port callers to qsizetype.")
-    constexpr int length() const /* not nothrow! */
-    { return Q_ASSERT(int(size()) == size()), int(size()); }
-#endif
+    [[nodiscard]] constexpr qsizetype length() const noexcept
+    { return size(); }
 
 private:
     [[nodiscard]] static inline int compare(QBasicUtf8StringView lhs, QBasicUtf8StringView rhs) noexcept
diff --git a/src/corelib/text/qutf8stringview.qdoc b/src/corelib/text/qutf8stringview.qdoc
index 8ff208ff23..36e09421a3 100644
--- a/src/corelib/text/qutf8stringview.qdoc
+++ b/src/corelib/text/qutf8stringview.qdoc
@@ -526,17 +526,11 @@
 
 /*!
     \fn int QUtf8StringView::length() const
-    \obsolete
-    Use size() and port callers to qsizetype.
 
-    Same as size(), except returns the result as an \c int.
+    Same as size().
 
     This function is provided for compatibility with other Qt containers.
 
-    \warning QUtf8StringView can represent strings with more than 2\sup{31} code points.
-    Calling this function on a string view for which size() returns a value greater
-    than \c{INT_MAX} constitutes undefined behavior.
-
     \sa empty(), isEmpty(), isNull(), size()
 */