--- src/backend/Main.cpp	2020-06-15 06:47:34.000000000 +0800
+++ src/backend/Main.cpp	2024-04-24 19:08:39.000000000 +0800
@@ -27,7 +27,7 @@
 #include <QSettings>
 #include <QTime>
 #include <QDir>
-#include <QStandardPaths>
+#include <QDesktopServices>
 
 #include <unistd.h>
 #include <getopt.h>
@@ -38,8 +38,8 @@
 QString debugLogDir;
 
 void enableDebugLogging(QString configPath);
-//void myMessageHandler(QtMsgType type, const char *msg);
-void myMessageHandler(QtMsgType type,const QMessageLogContext &context,const QString &msg);
+void myMessageHandler(QtMsgType type, const char *msg);
+//void myMessageHandler(QtMsgType type,const QMessageLogContext &context,const QString &msg);
 
 
 void help(void){
@@ -70,7 +70,7 @@
 	
 
 #ifdef ANDROID
-    QStringList loc = QStandardPaths::standardLocations(QStandardPaths::GenericDataLocation);
+    QStringList loc = QDesktopServices::standardLocations(QDesktopServices::GenericDataLocation);
     if(loc.size()<=0){
         QMessageBox::critical(
             NULL,
@@ -114,9 +114,9 @@
 
 
 	#ifdef _WIN32
-	 configPath = QStandardPaths::writableLocation(QStandardPaths::AppDataLocation);
+	 configPath = QDesktopServices::storageLocation(QDesktopServices::AppDataLocation);
 	#else
-	 configPath = QStandardPaths::writableLocation(QStandardPaths::HomeLocation)+NameOfConfigDirectoryOnLinux;
+	 configPath = QDesktopServices::storageLocation(QDesktopServices::HomeLocation)+NameOfConfigDirectoryOnLinux;
 	#endif
 
 
@@ -167,7 +167,7 @@
 
 	//configPath=QApplication::applicationDirPath();
 	if(QFile::exists(configPath+"/UseHomeForConfigStore")==true){
-		QStringList tmp=QStandardPaths::standardLocations(QStandardPaths::HomeLocation);
+		QString tmp=QDesktopServices::storageLocation(QDesktopServices::HomeLocation);
 		if(tmp.size()>=1){
 			configPath=tmp.at(0);
 			configPath+="/.I2PChat";
@@ -208,13 +208,13 @@
 	QSettings settings(configPath+"/application.ini",QSettings::IniFormat);
 	settings.beginGroup("General");
 	  if(settings.value("DebugLogging","true").toBool()==true){
-          qInstallMessageHandler(myMessageHandler);
+          qInstallMsgHandler(myMessageHandler);
 	  }
 	settings.endGroup();
 	settings.sync();
 }
 
-void myMessageHandler(QtMsgType type,const QMessageLogContext &context,const QString &msg)
+void myMessageHandler(QtMsgType type,const char *msg)
 {
 	QString txt;
 
@@ -222,23 +222,23 @@
 
 	switch (type) {
 	case QtDebugMsg:{
-		txt.append(QString(" Debug: %1 (%2:%3, %4)\n").arg(msg).arg(context.file).arg(context.line).arg(context.function));
+		txt.append(QString(" Debug: %1 (%2:%3, %4)\n").arg(msg));
 		break;
 	}
 	case QtWarningMsg:{
-		txt.append(QString(" Warning: %1 (%2:%3, %4)\n").arg(msg).arg(context.file).arg(context.line).arg(context.function));
+		txt.append(QString(" Warning: %1 (%2:%3, %4)\n").arg(msg));
 		break;
 	}
 	case QtCriticalMsg:{
-		txt.append(QString(" Critical: %1 (%2:%3, %4)\n").arg(msg).arg(context.file).arg(context.line).arg(context.function));
+		txt.append(QString(" Critical: %1 (%2:%3, %4)\n").arg(msg));
 		break;
 	}
     case QtFatalMsg:{
-        txt.append(QString(" Fatal: %1 (%2:%3, %4)\n").arg(msg).arg(context.file).arg(context.line).arg(context.function));
+        txt.append(QString(" Fatal: %1 (%2:%3, %4)\n").arg(msg));
         break;
     }
     default:{
-        txt.append(QString(" Message: %1 (%2:%3, %4)\n").arg(msg).arg(context.file).arg(context.line).arg(context.function));
+        txt.append(QString(" Message: %1 (%2:%3, %4)\n").arg(msg));
         break;
     }
     }

--- src/backend/Core.cpp	2020-06-15 06:47:34.000000000 +0800
+++ src/backend/Core.cpp	2024-04-24 18:20:44.000000000 +0800
@@ -29,7 +29,7 @@
 #include <QtGlobal>
 #include <QMessageBox>
 #include <QApplication>
-#include <QStandardPaths>
+#include <QDesktopServices>
 
 CCore::CCore(QString configPath)
 {

--- src/backend/TextEmotionChanger.cpp	2020-06-15 06:47:34.000000000 +0800
+++ src/backend/TextEmotionChanger.cpp	2024-04-24 18:32:19.000000000 +0800
@@ -171,7 +171,7 @@
 							{
 								if(tmp.isNull())
 									tmp = QPixmap(dirPath + "/" + fileName.at(0));
-								QString text = emoticonString.text().toHtmlEscaped();
+								QString text = Qt::escape(emoticonString.text());
 								m_urls.insert(text,
 									QString("<img src=\"%1\" width=\"%2\" height=\"%3\" alt=\"%4\" title=\"%4\"/>")
 									.arg(dirPath + "/" + fileName.at(0)).arg(tmp.size().width())