diff --git a/curecoin-qt.pro b/curecoin-qt.pro
index 09e4415..36f273a 100644
--- a/curecoin-qt.pro
+++ b/curecoin-qt.pro
@@ -4,6 +4,12 @@ VERSION = 1.0.0
 INCLUDEPATH += src src/json src/qt
 DEFINES += QT_GUI BOOST_THREAD_USE_LIB BOOST_SPIRIT_THREADSAFE BOOST_THREAD_PROVIDES_GENERIC_SHARED_MUTEX_ON_WIN __NO_SYSTEM_INCLUDES
 CONFIG += no_include_pwd
+QT += core gui network
+
+greaterThan(QT_MAJOR_VERSION, 4) {
+    QT += widgets printsupport
+    DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0
+}
 
 #uncomment the following section to enable building on windows:
 #windows:LIBS += -lshlwapi
diff --git a/src/curecoinrpc.cpp b/src/curecoinrpc.cpp
index 56494df..99853c1 100644
--- a/src/curecoinrpc.cpp
+++ b/src/curecoinrpc.cpp
@@ -389,7 +389,7 @@ int ReadHTTPStatus(std::basic_istream<char>& stream, int &proto)
 int ReadHTTPHeader(std::basic_istream<char>& stream, map<string, string>& mapHeadersRet)
 {
     int nLen = 0;
-    loop
+    while (true)
     {
         string str;
         std::getline(stream, str);
@@ -939,7 +939,7 @@ void ThreadRPCServer3(void* parg)
     AcceptedConnection *conn = (AcceptedConnection *) parg;
 
     bool fRun = true;
-    loop {
+    while (true) {
         if (fShutdown || !fRun)
         {
             conn->close();
diff --git a/src/db.cpp b/src/db.cpp
index e6a52f5..1463600 100644
--- a/src/db.cpp
+++ b/src/db.cpp
@@ -802,7 +802,7 @@ bool CTxDB::LoadBlockIndexGuts()
 
     // Load mapBlockIndex
     unsigned int fFlags = DB_SET_RANGE;
-    loop
+    while (true)
     {
         // Read next record
         CDataStream ssKey(SER_DISK, CLIENT_VERSION);
diff --git a/src/irc.cpp b/src/irc.cpp
index aa412c8..d89356e 100644
--- a/src/irc.cpp
+++ b/src/irc.cpp
@@ -77,7 +77,7 @@ static bool Send(SOCKET hSocket, const char* pszSend)
 
 bool RecvLineIRC(SOCKET hSocket, string& strLine)
 {
-    loop
+    while (true)
     {
         bool fRet = RecvLine(hSocket, strLine);
         if (fRet)
@@ -100,7 +100,7 @@ bool RecvLineIRC(SOCKET hSocket, string& strLine)
 
 int RecvUntil(SOCKET hSocket, const char* psz1, const char* psz2=NULL, const char* psz3=NULL, const char* psz4=NULL)
 {
-    loop
+    while (true)
     {
         string strLine;
         strLine.reserve(10000);
@@ -135,7 +135,7 @@ bool Wait(int nSeconds)
 bool RecvCodeLine(SOCKET hSocket, const char* psz1, string& strRet)
 {
     strRet.clear();
-    loop
+    while (true)
     {
         string strLine;
         if (!RecvLineIRC(hSocket, strLine))
diff --git a/src/kernel.cpp b/src/kernel.cpp
index d70ed73..f9a2a9f 100644
--- a/src/kernel.cpp
+++ b/src/kernel.cpp
@@ -24,7 +24,8 @@ static std::map<int, unsigned int> mapStakeModifierCheckpoints =
     ( 11000, 0x97a10217u )
     ( 130000, 0xf3878d42u )
     ( 148000, 0x111af91cu )
-    ;
+;
+
 
 // Get the last stake modifier and its generation time from a given block
 static bool GetLastStakeModifier(const CBlockIndex* pindex, uint64& nStakeModifier, int64& nModifierTime)
diff --git a/src/main.cpp b/src/main.cpp
index 5c29a63..fe1e944 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -2574,7 +2574,7 @@ static unsigned int nCurrentBlockFile = 1;
 FILE* AppendBlockFile(unsigned int& nFileRet)
 {
     nFileRet = 0;
-    loop
+    while (true)
     {
         FILE* file = OpenBlockFile(nCurrentBlockFile, 0, "ab");
         if (!file)
@@ -3656,7 +3656,7 @@ bool ProcessMessages(CNode* pfrom)
     //  (x) data
     //
 
-    loop
+    while (true)
     {
         // Don't bother if send buffer is too full to respond anyway
         if (pfrom->vSend.size() >= SendBufferSize())
@@ -4538,7 +4538,7 @@ void curecoinMiner(CWallet *pwallet, bool fProofOfStake)
         uint256 hashTarget = CBigNum().SetCompact(pblock->nBits).getuint256();
         uint256 hashbuf[2];
         uint256& hash = *alignup<16>(hashbuf);
-        loop
+        while (true)
         {
             unsigned int nHashesDone = 0;
             unsigned int nNonceFound;
diff --git a/src/net.cpp b/src/net.cpp
index 3b19ea8..b4800b1 100644
--- a/src/net.cpp
+++ b/src/net.cpp
@@ -140,7 +140,7 @@ CAddress GetLocalAddress(const CNetAddr *paddrPeer)
 bool RecvLine(SOCKET hSocket, string& strLine)
 {
     strLine = "";
-    loop
+    while (true)
     {
         char c;
         int nBytes = recv(hSocket, &c, 1, 0);
@@ -313,7 +313,7 @@ bool GetMyExternalIP2(const CService& addrConnect, const char* pszGet, const cha
     {
         if (strLine.empty()) // HTTP response is separated from headers by blank line
         {
-            loop
+            while (true)
             {
                 if (!RecvLine(hSocket, strLine))
                 {
@@ -665,7 +665,7 @@ void ThreadSocketHandler2(void* parg)
     list<CNode*> vNodesDisconnected;
     unsigned int nPrevNodeCount = 0;
 
-    loop
+    while (true)
     {
         //
         // Disconnect nodes
@@ -1078,7 +1078,7 @@ void ThreadMapPort2(void* parg)
         else
             printf("UPnP Port Mapping successful.\n");
         int i = 1;
-        loop {
+        while (true) {
             if (fShutdown || !fUseUPnP)
             {
                 r = UPNP_DeletePortMapping(urls.controlURL, data.first.servicetype, port.c_str(), "TCP", 0);
@@ -1113,7 +1113,7 @@ void ThreadMapPort2(void* parg)
         freeUPNPDevlist(devlist); devlist = 0;
         if (r != 0)
             FreeUPNPUrls(&urls);
-        loop {
+        while (true) {
             if (fShutdown || !fUseUPnP)
                 return;
             Sleep(2000);
@@ -1349,7 +1349,7 @@ void ThreadOpenConnections2(void* parg)
 
     // Initiate network connections
     int64 nStart = GetTime();
-    loop
+    while (true)
     {
         ProcessOneShot();
 
@@ -1408,7 +1408,7 @@ void ThreadOpenConnections2(void* parg)
         int64 nANow = GetAdjustedTime();
 
         int nTries = 0;
-        loop
+        while (true)
         {
             // use an nUnkBias between 10 (no outgoing connections) and 90 (8 outgoing connections)
             CAddress addr = addrman.Select(10 + min(nOutbound,8)*10);
@@ -1501,7 +1501,7 @@ void ThreadOpenAddedConnections2(void* parg)
             }
         }
     }
-    loop
+    while (true)
     {
         vector<vector<CService> > vservConnectAddresses = vservAddressesToAdd;
         // Attempt to connect to each IP for each addnode entry until at least one is successful per addnode entry
diff --git a/src/qt/addressbookpage.cpp b/src/qt/addressbookpage.cpp
index ee432b1..6d78183 100644
--- a/src/qt/addressbookpage.cpp
+++ b/src/qt/addressbookpage.cpp
@@ -134,7 +134,7 @@ void AddressBookPage::setModel(AddressTableModel *model)
     // Set column widths
     ui->tableView->horizontalHeader()->resizeSection(
             AddressTableModel::Address, 320);
-    ui->tableView->horizontalHeader()->setResizeMode(
+    ui->tableView->horizontalHeader()->setSectionResizeMode(
             AddressTableModel::Label, QHeaderView::Stretch);
 
     connect(ui->tableView->selectionModel(), SIGNAL(selectionChanged(QItemSelection,QItemSelection)),
diff --git a/src/qt/curecoin.cpp b/src/qt/curecoin.cpp
index 0244b75..10d3919 100644
--- a/src/qt/curecoin.cpp
+++ b/src/qt/curecoin.cpp
@@ -115,11 +115,11 @@ int main(int argc, char *argv[])
 {
     // Do this early as we don't want to bother initializing if we are just calling IPC
     ipcScanRelay(argc, argv);
-
+#if QT_VERSION < 0x050000
     // Internal string conversion is all UTF-8
     QTextCodec::setCodecForTr(QTextCodec::codecForName("UTF-8"));
     QTextCodec::setCodecForCStrings(QTextCodec::codecForTr());
-
+#endif
     Q_INIT_RESOURCE(curecoin);
     QApplication app(argc, argv);
 
diff --git a/src/qt/curecoingui.cpp b/src/qt/curecoingui.cpp
index 0376fbd..e1a4ba6 100644
--- a/src/qt/curecoingui.cpp
+++ b/src/qt/curecoingui.cpp
@@ -54,6 +54,7 @@
 #include <QDragEnterEvent>
 #include <QUrl>
 #include <QStyle>
+#include <QtWidgets>
 
 #include <iostream>
 
@@ -820,7 +821,7 @@ void curecoinGUI::encryptWallet(bool status)
 
 void curecoinGUI::backupWallet()
 {
-    QString saveDir = QDesktopServices::storageLocation(QDesktopServices::DocumentsLocation);
+    QString saveDir = QStandardPaths::writableLocation(QStandardPaths::DocumentsLocation);
     QString filename = QFileDialog::getSaveFileName(this, tr("Backup Wallet"), saveDir, tr("Wallet Data (*.dat)"));
     if(!filename.isEmpty()) {
         if(!walletModel->backupWallet(filename)) {
diff --git a/src/qt/guiutil.cpp b/src/qt/guiutil.cpp
index 5d1fec5..55a5372 100644
--- a/src/qt/guiutil.cpp
+++ b/src/qt/guiutil.cpp
@@ -18,6 +18,9 @@
 #include <QFileDialog>
 #include <QDesktopServices>
 #include <QThread>
+#if QT_VERSION >= QT_VERSION_CHECK(5,0,0)
+#include <QUrlQuery>
+#endif
 
 #include <boost/filesystem.hpp>
 #include <boost/filesystem/fstream.hpp>
@@ -84,6 +87,7 @@ bool parsecurecoinURI(const QUrl &uri, SendCoinsRecipient *out)
     rv.address = uri.path();
     rv.amount = 0;
     QList<QPair<QString, QString> > items = uri.queryItems();
+
     for (QList<QPair<QString, QString> >::iterator i = items.begin(); i != items.end(); i++)
     {
         bool fShouldReturnFalse = false;
@@ -136,7 +140,7 @@ bool parsecurecoinURI(QString uri, SendCoinsRecipient *out)
 
 QString HtmlEscape(const QString& str, bool fMultiLine)
 {
-    QString escaped = Qt::escape(str);
+    QString escaped = QString(str.toHtmlEscaped());
     if(fMultiLine)
     {
         escaped = escaped.replace("\n", "<br>\n");
@@ -171,7 +175,7 @@ QString getSaveFileName(QWidget *parent, const QString &caption,
     QString myDir;
     if(dir.isEmpty()) // Default to user documents location
     {
-        myDir = QDesktopServices::storageLocation(QDesktopServices::DocumentsLocation);
+        myDir = QStandardPaths::writableLocation(QStandardPaths::DocumentsLocation);
     }
     else
     {
diff --git a/src/qt/locale/curecoin_ca.qm b/src/qt/locale/curecoin_ca.qm
index 3587e7b..3860d93 100644
Binary files a/src/qt/locale/curecoin_ca.qm and b/src/qt/locale/curecoin_ca.qm differ
diff --git a/src/qt/locale/curecoin_ca_ES.qm b/src/qt/locale/curecoin_ca_ES.qm
index 08af955..44831a0 100644
Binary files a/src/qt/locale/curecoin_ca_ES.qm and b/src/qt/locale/curecoin_ca_ES.qm differ
diff --git a/src/qt/locale/curecoin_eo.qm b/src/qt/locale/curecoin_eo.qm
index 4443e01..48cf392 100644
Binary files a/src/qt/locale/curecoin_eo.qm and b/src/qt/locale/curecoin_eo.qm differ
diff --git a/src/qt/locale/curecoin_la.qm b/src/qt/locale/curecoin_la.qm
index ec5172e..ddfc80a 100644
Binary files a/src/qt/locale/curecoin_la.qm and b/src/qt/locale/curecoin_la.qm differ
diff --git a/src/qt/qtipcserver.cpp b/src/qt/qtipcserver.cpp
index 65646f7..392d015 100644
--- a/src/qt/qtipcserver.cpp
+++ b/src/qt/qtipcserver.cpp
@@ -98,7 +98,7 @@ static void ipcThread2(void* pArg)
     size_t nSize = 0;
     unsigned int nPriority = 0;
 
-    loop
+    while (true)
     {
         ptime d = boost::posix_time::microsec_clock::universal_time() + millisec(100);
         if (mq->timed_receive(&buffer, sizeof(buffer), nSize, nPriority, d))
diff --git a/src/qt/sendcoinsdialog.cpp b/src/qt/sendcoinsdialog.cpp
index 168e998..b8e2639 100644
--- a/src/qt/sendcoinsdialog.cpp
+++ b/src/qt/sendcoinsdialog.cpp
@@ -99,7 +99,7 @@ void SendCoinsDialog::on_sendButton_clicked()
     QStringList formatted;
     foreach(const SendCoinsRecipient &rcp, recipients)
     {
-        formatted.append(tr("<b>%1</b> to %2 (%3)").arg(curecoinUnits::formatWithUnit(curecoinUnits::BTC, rcp.amount), Qt::escape(rcp.label), rcp.address));
+        formatted.append(tr("<b>%1</b> to %2 (%3)").arg(curecoinUnits::formatWithUnit(curecoinUnits::BTC, rcp.amount), QString(rcp.label).toHtmlEscaped(), rcp.address));
     }
 
     fNewRecipientAllowed = false;
diff --git a/src/script.cpp b/src/script.cpp
index 69e9aee..742fb39 100644
--- a/src/script.cpp
+++ b/src/script.cpp
@@ -1257,7 +1257,7 @@ bool Solver(const CScript& scriptPubKey, txnouttype& typeRet, vector<vector<unsi
         // Compare
         CScript::const_iterator pc1 = script1.begin();
         CScript::const_iterator pc2 = script2.begin();
-        loop
+        while (true)
         {
             if (pc1 == script1.end() && pc2 == script2.end())
             {
diff --git a/src/util.cpp b/src/util.cpp
index 3e370c5..5d0d9de 100644
--- a/src/util.cpp
+++ b/src/util.cpp
@@ -290,7 +290,7 @@ string vstrprintf(const char *format, va_list ap)
     char* p = buffer;
     int limit = sizeof(buffer);
     int ret;
-    loop
+    while (true)
     {
         va_list arg_ptr;
         va_copy(arg_ptr, ap);
@@ -350,7 +350,7 @@ void ParseString(const string& str, char c, vector<string>& v)
         return;
     string::size_type i1 = 0;
     string::size_type i2;
-    loop
+    while (true)
     {
         i2 = str.find(c, i1);
         if (i2 == str.npos)
@@ -466,7 +466,7 @@ vector<unsigned char> ParseHex(const char* psz)
 {
     // convert hex dump to vector
     vector<unsigned char> vch;
-    loop
+    while (true)
     {
         while (isspace(*psz))
             psz++;
@@ -920,7 +920,7 @@ string DecodeBase32(const string& str)
 
 bool WildcardMatch(const char* psz, const char* mask)
 {
-    loop
+    while (true)
     {
         switch (*mask)
         {
diff --git a/src/util.h b/src/util.h
index f1dcc27..6de6dfb 100644
--- a/src/util.h
+++ b/src/util.h
@@ -35,7 +35,6 @@ typedef unsigned long long  uint64;
 static const int64 COIN = 1000000;
 static const int64 CENT = 10000;
 
-#define loop                for (;;)
 #define BEGIN(a)            ((char*)&(a))
 #define END(a)              ((char*)&((&(a))[1]))
 #define UBEGIN(a)           ((unsigned char*)&(a))
diff --git a/src/wallet.cpp b/src/wallet.cpp
index c9389bd..82e53c7 100644
--- a/src/wallet.cpp
+++ b/src/wallet.cpp
@@ -1232,7 +1232,7 @@ bool CWallet::CreateTransaction(const vector<pair<CScript, int64> >& vecSend, CW
         CTxDB txdb("r");
         {
             nFeeRet = nTransactionFee;
-            loop
+            while (true)
             {
                 wtxNew.vin.clear();
                 wtxNew.vout.clear();
@@ -1495,7 +1495,7 @@ bool CWallet::CreateCoinStake(const CKeyStore& keystore, unsigned int nBits, int
     }
 
     int64 nMinFee = 0;
-    loop
+    while (true)
     {
         // Set output amount
         if (txNew.vout.size() == 3)
diff --git a/src/walletdb.cpp b/src/walletdb.cpp
index ee3a0f0..96e8d51 100644
--- a/src/walletdb.cpp
+++ b/src/walletdb.cpp
@@ -73,7 +73,7 @@ void CWalletDB::ListAccountCreditDebit(const string& strAccount, list<CAccountin
     if (!pcursor)
         throw runtime_error("CWalletDB::ListAccountCreditDebit() : cannot create DB cursor");
     unsigned int fFlags = DB_SET_RANGE;
-    loop
+    while (true)
     {
         // Read next record
         CDataStream ssKey(SER_DISK, CLIENT_VERSION);
@@ -414,7 +414,7 @@ DBErrors CWalletDB::LoadWallet(CWallet* pwallet)
             return DB_CORRUPT;
         }
 
-        loop
+        while (true)
         {
             // Read next record
             CDataStream ssKey(SER_DISK, CLIENT_VERSION);