diff --git a/Plugins/ScriptingPython/scriptingpython.cpp b/Plugins/ScriptingPython/scriptingpython.cpp
index a9578df196..65cb6d9433 100644
--- a/Plugins/ScriptingPython/scriptingpython.cpp
+++ b/Plugins/ScriptingPython/scriptingpython.cpp
@@ -420,9 +420,9 @@ PyObject* ScriptingPython::variantToPythonObj(const QVariant& value)
             int listSize = list.size();
             obj = PyList_New(listSize);
             int pos = 0;
-            for (const QVariant& item : list)
+            for (const QString& item : list)
             {
-                PyObject* subObj = variantToPythonObj(item);
+                PyObject* subObj = stringToPythonObj(item);
                 PyList_SetItem(obj, pos++, subObj);
                 Py_DECREF(subObj);
             }
diff --git a/SQLiteStudio3/coreSQLiteStudio/chillout/windows/StackWalker.cpp b/SQLiteStudio3/coreSQLiteStudio/chillout/windows/StackWalker.cpp
index 91d68242e5..126d556de3 100644
--- a/SQLiteStudio3/coreSQLiteStudio/chillout/windows/StackWalker.cpp
+++ b/SQLiteStudio3/coreSQLiteStudio/chillout/windows/StackWalker.cpp
@@ -81,6 +81,8 @@
  **********************************************************************/
 #ifdef _WIN32
 
+#define MINGW_HAS_SECURE_API 1  // for strncpy_s and friends in MinGW-w64 < 7.0
+
 #include <windows.h>
 #include <tchar.h>
 #include <stdio.h>
@@ -241,11 +243,13 @@ DWORD64
 #endif
 
 #ifdef __MINGW32__
+#ifndef __GOT_SECURE_LIB__
 #define strcpy_s(dst, len, src) strcpy(dst, src)
 #define strncpy_s(dst, len, src, maxLen) strncpy(dst, src, len)
 #define strcat_s(dst, len, src) strcat(dst, src)
 #define _snprintf_s _snprintf
 #endif
+#endif
 
 static void MyStrCpy(char* szDest, size_t nMaxDestSize, const char* szSrc)
 {
diff --git a/SQLiteStudio3/coreSQLiteStudio/common/utils.cpp b/SQLiteStudio3/coreSQLiteStudio/common/utils.cpp
index a5723303fe..1a33544cf9 100644
--- a/SQLiteStudio3/coreSQLiteStudio/common/utils.cpp
+++ b/SQLiteStudio3/coreSQLiteStudio/common/utils.cpp
@@ -385,34 +385,36 @@ QString center(const QString& str, int length, const QChar& fillChar)
     return result.prepend(fillLeft).append(fillRight);
 }
 
-QString longest(const QStringList& strList)
+const QString& longest(const QStringList& strList)
 {
     int max = 0;
-    QString result;
-    for (const QString str : strList)
+    qsizetype maxIndex = -1;
+    for (qsizetype i = 0; i < strList.size(); i++)
     {
-        if (str.size() > max)
+        int size = strList.at(i).size();
+        if (size > max)
         {
-            result = str;
-            max = str.size();
+            maxIndex = i;
+            max = size;
         }
     }
-    return result;
+    return strList.at(maxIndex);
 }
 
-QString shortest(const QStringList& strList)
+const QString& shortest(const QStringList& strList)
 {
     int max = INT_MAX;
-    QString result;
-    for (const QString str : strList)
+    qsizetype maxIndex = -1;
+    for (qsizetype i = 0; i < strList.size(); i++)
     {
-        if (str.size() < max)
+        int size = strList.at(i).size();
+        if (size < max)
         {
-            result = str;
-            max = str.size();
+            maxIndex = i;
+            max = size;
         }
     }
-    return result;
+    return strList.at(maxIndex);
 }
 
 QString longestCommonPart(const QStringList& strList)
diff --git a/SQLiteStudio3/coreSQLiteStudio/common/utils.h b/SQLiteStudio3/coreSQLiteStudio/common/utils.h
index 0ceecc55cc..f0b5bcbcaa 100644
--- a/SQLiteStudio3/coreSQLiteStudio/common/utils.h
+++ b/SQLiteStudio3/coreSQLiteStudio/common/utils.h
@@ -195,7 +195,7 @@ API_EXPORT QString center(const QString& str, int length, const QChar& fillChar)
  *
  * If there are many values with the same, longest length, then the first one is picked.
  */
-API_EXPORT QString longest(const QStringList& strList);
+API_EXPORT const QString& longest(const QStringList& strList);
 
 /**
  * @brief Picks the shortest string from the list.
@@ -204,7 +204,7 @@ API_EXPORT QString longest(const QStringList& strList);
  *
  * If there are many values with the same, shortest length, then the first one is picked.
  */
-API_EXPORT QString shortest(const QStringList& strList);
+API_EXPORT const QString& shortest(const QStringList& strList);
 
 /**
  * @brief Finds the longest common part of all strings.
diff --git a/SQLiteStudio3/coreSQLiteStudio/parser/ast/sqliteorderby.cpp b/SQLiteStudio3/coreSQLiteStudio/parser/ast/sqliteorderby.cpp
index 4db4b5d6c0..25500281f6 100644
--- a/SQLiteStudio3/coreSQLiteStudio/parser/ast/sqliteorderby.cpp
+++ b/SQLiteStudio3/coreSQLiteStudio/parser/ast/sqliteorderby.cpp
@@ -144,7 +144,7 @@ void SqliteOrderBy::pullLastCollationAsOuterExpr()
     if (!collateExpr)
     {
         qCritical() << "Could not cast statement to SqliteExpr, even though it's identified as COLLATE expr. The actual contents:"
-                    << collateExpr->detokenize();
+                    << stmt->detokenize();
         return;
     }