diff --git a/src/corelib/plugin/qlibrary_unix.cpp b/src/corelib/plugin/qlibrary_unix.cpp
index c119bee2fc..17248c8b3f 100644
--- a/src/corelib/plugin/qlibrary_unix.cpp
+++ b/src/corelib/plugin/qlibrary_unix.cpp
@@ -230,7 +230,7 @@ bool QLibraryPrivate::load_sys()
                 attempt = name;
                 int lparen = attempt.indexOf(QLatin1Char('('));
                 if (lparen == -1)
-                    lparen = attempt.count();
+                    lparen = attempt.size();
                 attempt = path + prefixes.at(prefix) + attempt.insert(lparen, suffixes.at(suffix));
             } else {
                 attempt = path + prefixes.at(prefix) + name + suffixes.at(suffix);
diff --git a/src/gui/util/qedidparser.cpp b/src/gui/util/qedidparser.cpp
index db5ccf1772..690f072d85 100644
--- a/src/gui/util/qedidparser.cpp
+++ b/src/gui/util/qedidparser.cpp
@@ -272,7 +272,7 @@ QString QEdidParser::parseEdidString(const quint8 *data)
     buffer = buffer.replace('\r', '\0').replace('\n', '\0');
 
     // Replace non-printable characters with dash
-    for (int i = 0; i < buffer.count(); ++i) {
+    for (int i = 0; i < buffer.size(); ++i) {
         if (buffer[i] < '\040' || buffer[i] > '\176')
             buffer[i] = '-';
     }
diff --git a/tests/auto/corelib/text/qstring/tst_qstring.cpp b/tests/auto/corelib/text/qstring/tst_qstring.cpp
index 024bb6dab4..7743c13dc0 100644
--- a/tests/auto/corelib/text/qstring/tst_qstring.cpp
+++ b/tests/auto/corelib/text/qstring/tst_qstring.cpp
@@ -976,7 +976,9 @@ void tst_QString::length()
     QFETCH(QString, s1);
     QTEST(s1.length(), "res");
     QTEST(s1.size(), "res");
-    QTEST(s1.count(), "res");
+#if QT_DEPRECATED_SINCE(6, 4)
+    QT_IGNORE_DEPRECATIONS(QTEST(s1.count(), "res");)
+#endif
 }
 
 #include <qfile.h>
@@ -1905,7 +1907,9 @@ void tst_QString::count()
     QCOMPARE(a.count( QStringView(), Qt::CaseInsensitive), 16);
 
     QString nullStr;
-    QCOMPARE(nullStr.count(), 0);
+#if QT_DEPRECATED_SINCE(6, 4)
+    QT_IGNORE_DEPRECATIONS(QCOMPARE(nullStr.count(), 0);)
+#endif
     QCOMPARE(nullStr.count('A'), 0);
     QCOMPARE(nullStr.count("AB"), 0);
     QCOMPARE(nullStr.count(view), 0);
@@ -1919,7 +1923,9 @@ void tst_QString::count()
 #endif
 
     QString emptyStr("");
-    QCOMPARE(emptyStr.count(), 0);
+#if QT_DEPRECATED_SINCE(6, 4)
+    QT_IGNORE_DEPRECATIONS(QCOMPARE(emptyStr.count(), 0);)
+#endif
     QCOMPARE(emptyStr.count('A'), 0);
     QCOMPARE(emptyStr.count("AB"), 0);
     QCOMPARE(emptyStr.count(view), 0);
@@ -6500,7 +6506,7 @@ void tst_QString::arg_fillChar()
     QFETCH(IntList, widths);
     QFETCH(QString, fillChars);
     QFETCH(QString, expected);
-    QCOMPARE(replaceValues.count(), fillChars.count());
+    QCOMPARE(replaceValues.count(), fillChars.size());
     QCOMPARE(replaceValues.count(), widths.count());
 
     QString actual = pattern;