49 files changed, 1014 insertions, 257 deletions
diff --git a/contrib/devtools/optimize-pngs.py b/contrib/devtools/optimize-pngs.py
index 38aaa00f3..b6d6a097d 100755
--- a/contrib/devtools/optimize-pngs.py
+++ b/contrib/devtools/optimize-pngs.py
@@ -1,5 +1,8 @@
 #!/usr/bin/env python
-
+'''
+Run this scrip every time you change one of the png files. Using pngcrush, it will optimize the png files, remove various color profiles, remove ancillary chunks (alla) and text chunks (text).
+#pngcrush -brute -ow -rem gAMA -rem cHRM -rem iCCP -rem sRGB -rem alla -rem text
+'''
 import os
 import sys
 import subprocess
@@ -18,14 +21,12 @@ def content_hash(filename):
     data = i.tostring()
     return hashlib.sha256(data).hexdigest()
 
-#optimize png, remove various color profiles, remove ancillary chunks (alla) and text chunks (text)
-#pngcrush -brute -ow -rem gAMA -rem cHRM -rem iCCP -rem sRGB -rem alla -rem text
-
 pngcrush = 'pngcrush'
 git = 'git'
-folders = ["src/qt/res/movies", "src/qt/res/icons", "src/qt/res/images"]
+folders = ["src/qt/res/movies", "src/qt/res/icons"]
 basePath = subprocess.check_output([git, 'rev-parse', '--show-toplevel']).rstrip('\n')
 totalSaveBytes = 0
+noHashChange = True
 
 outputArray = []
 for folder in folders:
@@ -68,6 +69,7 @@ for fileDict in outputArray:
     oldHash = fileDict['sha256Old']
     newHash = fileDict['sha256New']
     totalSaveBytes += fileDict['osize'] - fileDict['psize']
+    noHashChange = noHashChange and (oldHash == newHash)
     print fileDict['file']+"\n  size diff from: "+str(fileDict['osize'])+" to: "+str(fileDict['psize'])+"\n  old sha256: "+oldHash+"\n  new sha256: "+newHash+"\n"
     
-print "completed. Total reduction: "+str(totalSaveBytes)+" bytes"
+print "completed. Checksum stable: "+str(noHashChange)+". Total reduction: "+str(totalSaveBytes)+" bytes"
diff --git a/doc/assets-attribution.md b/doc/assets-attribution.md
index c6da1a458..b5a033dd7 100644
--- a/doc/assets-attribution.md
+++ b/doc/assets-attribution.md
@@ -10,37 +10,58 @@ The following is a list of assets used in the bitcoin source and their proper at
 * Site: [https://github.com/stephenhutchings/typicons.font](https://github.com/stephenhutchings/typicons.font)
 
 ### Assets Used
-	src/qt/res/icons/add.png, src/qt/res/icons/address-book.png,
-	src/qt/res/icons/configure.png, src/qt/res/icons/connect4.png,
-    src/qt/res/icons/debugwindow.png, src/qt/res/icons/edit.png,
-    src/qt/res/icons/exitcopy.png, src/qt/res/icons/editpaste.png,
-    src/qt/res/icons/export.png, src/qt/res/icons/eye.png,
-    src/qt/res/icons/filesave.png, src/qt/res/icons/history.png,
-    src/qt/res/icons/info.png, src/qt/res/icons/key.png,
-    src/qt/res/icons/lock_*.png, src/qt/res/icons/open.png,
-    src/qt/res/icons/overview.png, src/qt/res/icons/quit.png,
-    src/qt/res/icons/receive.png, src/qt/res/icons/remove.png,
-    src/qt/res/icons/send.png, src/qt/res/icons/synced.png,
-    src/qt/res/icons/transaction*.png, src/qt/res/icons/tx_output.png,
+    src/qt/res/icons/add.png
+    src/qt/res/icons/address-book.png,
+    src/qt/res/icons/configure.png
+    src/qt/res/icons/debugwindow.png
+    src/qt/res/icons/edit.png,
+    src/qt/res/icons/exitcopy.png
+    src/qt/res/icons/editpaste.png,
+    src/qt/res/icons/export.png
+    src/qt/res/icons/eye.png,
+    src/qt/res/icons/filesave.png
+    src/qt/res/icons/history.png,
+    src/qt/res/icons/info.png
+    src/qt/res/icons/key.png,
+    src/qt/res/icons/lock_*.png
+    src/qt/res/icons/open.png,
+    src/qt/res/icons/overview.png
+    src/qt/res/icons/quit.png,
+    src/qt/res/icons/receive.png
+    src/qt/res/icons/remove.png,
+    src/qt/res/icons/send.png
+    src/qt/res/icons/synced.png,
+    src/qt/res/icons/transaction*.png
+    src/qt/res/icons/tx_output.png,
     src/qt/res/icons/warning.png
 
-Jonas Schnelli
+Other
 -----------------------
 
 ### Info
-* Designer: Jonas Schnelli
-* Bitcoin Icon: (based on the original bitcoin logo from Bitboy)
+* Designer: Jonas Schnelli, Bitboy, Stephen Hutchings, Marco Falke
+* Bitcoin Icon: Based on the original bitcoin logo from Bitboy
+* Network connection icon: Inspired by flow-merge.svg from Stephen Hutchings
 * Some icons are based on Stephan Hutchings Typicons
 * License: MIT
 
 ### Assets Used
-    src/qt/res/icons/about.png, src/qt/res/icons/about_qt.png,
-    src/qt/res/icons/bitcoin.icns, src/qt/res/icons/bitcoin.ico,
-    src/qt/res/icons/bitcoin.png, src/qt/res/icons/clock*.png,
-    src/qt/res/icons/connect[0-3].png, src/qt/res/icons/eye_minus.png,
-    src/qt/res/icons/eye_plus.png, src/qt/res/icons/verify.png,
-    src/qt/res/icons/tx_inout.png, src/qt/res/icons/tx_input.png,
-    src/qt/res/src/verify.svg, src/qt/res/src/bitcoin.svg,
-    src/qt/res/src/clock*.svg, src/qt/res/src/connect*.svg,
-    src/qt/res/src/mine.svg, src/qt/res/src/qt.svg, src/qt/res/src/tx*.svg,
-    src/qt/res/src/verify.svg,
+    src/qt/res/icons/about.png
+    src/qt/res/icons/about_qt.png,
+    src/qt/res/icons/bitcoin.icns
+    src/qt/res/icons/bitcoin.ico,
+    src/qt/res/icons/bitcoin.png
+    src/qt/res/icons/clock*.png,
+    src/qt/res/icons/connect*.png
+    src/qt/res/icons/eye_minus.png,
+    src/qt/res/icons/eye_plus.png
+    src/qt/res/icons/verify.png,
+    src/qt/res/icons/tx_inout.png
+    src/qt/res/icons/tx_input.png,
+    src/qt/res/src/bitcoin.svg,
+    src/qt/res/src/clock*.svg
+    src/qt/res/src/connect*.svg,
+    src/qt/res/src/mine.svg
+    src/qt/res/src/qt.svg
+    src/qt/res/src/tx*.svg,
+    src/qt/res/src/verify.svg
diff --git a/doc/init.md b/doc/init.md
index 1f206a6c0..ed9ce7215 100644
--- a/doc/init.md
+++ b/doc/init.md
@@ -29,28 +29,32 @@ file, however it is recommended that a strong and secure password be used
 as this password is security critical to securing the wallet should the
 wallet be enabled.
 
-If bitcoind is run with "-daemon" flag, and no rpcpassword is set, it will
-print a randomly generated suitable password to stderr.  You can also
-generate one from the shell yourself like this:
+If bitcoind is run with the "-server" flag (set by default), and no rpcpassword is set, 
+it will use a special cookie file for authentication. The cookie is generated with random 
+content when the daemon starts, and deleted when it exits. Read access to this file
+controls who can access it through RPC. 
 
-bash -c 'tr -dc a-zA-Z0-9 < /dev/urandom | head -c32 && echo'
+By default the cookie is stored in the data directory, but it's location can be overridden 
+with the option '-rpccookiefile'.
 
-Once you have a password in hand, set rpcpassword= in /etc/bitcoin/bitcoin.conf
+This allows for running bitcoind without having to do any manual configuration.
+
+`conf`, `pid`, and `wallet` accept relative paths which are interpreted as 
+relative to the data directory. `wallet` *only* supports relative paths.
 
 For an example configuration file that describes the configuration settings, 
-see contrib/debian/examples/bitcoin.conf.
+see `contrib/debian/examples/bitcoin.conf`.
 
 3. Paths
 ---------------------------------
 
 All three configurations assume several paths that might need to be adjusted.
 
-Binary:              /usr/bin/bitcoind
-Configuration file:  /etc/bitcoin/bitcoin.conf
-Data directory:      /var/lib/bitcoind
-PID file:            /var/run/bitcoind/bitcoind.pid (OpenRC and Upstart)
-                     /var/lib/bitcoind/bitcoind.pid (systemd)
-Lock file:           /var/lock/subsys/bitcoind (CentOS)
+Binary:              `/usr/bin/bitcoind`  
+Configuration file:  `/etc/bitcoin/bitcoin.conf`  
+Data directory:      `/var/lib/bitcoind`  
+PID file:            `/var/run/bitcoind/bitcoind.pid` (OpenRC and Upstart) or `/var/lib/bitcoind/bitcoind.pid` (systemd)  
+Lock file:           `/var/lock/subsys/bitcoind` (CentOS)  
 
 The configuration file, PID directory (if applicable) and data directory
 should all be owned by the bitcoin user and group.  It is advised for security
@@ -65,21 +69,21 @@ can then be controlled by group membership.
 
 Installing this .service file consists of just copying it to
 /usr/lib/systemd/system directory, followed by the command
-"systemctl daemon-reload" in order to update running systemd configuration.
+`systemctl daemon-reload` in order to update running systemd configuration.
 
-To test, run "systemctl start bitcoind" and to enable for system startup run
-"systemctl enable bitcoind"
+To test, run `systemctl start bitcoind` and to enable for system startup run
+`systemctl enable bitcoind`
 
 4b) OpenRC
 
 Rename bitcoind.openrc to bitcoind and drop it in /etc/init.d.  Double
 check ownership and permissions and make it executable.  Test it with
-"/etc/init.d/bitcoind start" and configure it to run on startup with
-"rc-update add bitcoind"
+`/etc/init.d/bitcoind start` and configure it to run on startup with
+`rc-update add bitcoind`
 
 4c) Upstart (for Debian/Ubuntu based distributions)
 
-Drop bitcoind.conf in /etc/init.  Test by running "service bitcoind start"
+Drop bitcoind.conf in /etc/init.  Test by running `service bitcoind start`
 it will automatically start on reboot.
 
 NOTE: This script is incompatible with CentOS 5 and Amazon Linux 2014 as they
@@ -87,7 +91,7 @@ use old versions of Upstart and do not supply the start-stop-daemon utility.
 
 4d) CentOS
 
-Copy bitcoind.init to /etc/init.d/bitcoind. Test by running "service bitcoind start".
+Copy bitcoind.init to /etc/init.d/bitcoind. Test by running `service bitcoind start`.
 
 Using this script, you can adjust the path and flags to the bitcoind program by 
 setting the BITCOIND and FLAGS environment variables in the file 
@@ -99,4 +103,3 @@ setting the BITCOIND and FLAGS environment variables in the file
 Auto respawning is currently only configured for Upstart and systemd.
 Reasonable defaults have been chosen but YMMV.
 
-
diff --git a/src/Makefile.test.include b/src/Makefile.test.include
index f9384a09a..828919895 100644
--- a/src/Makefile.test.include
+++ b/src/Makefile.test.include
@@ -15,6 +15,8 @@ EXTRA_DIST += \
 	test/data/tx394b54bb.hex \
 	test/data/txcreate1.hex \
 	test/data/txcreate2.hex \
+	test/data/txcreatedata1.hex \
+	test/data/txcreatedata2.hex \
 	test/data/txcreatesign.hex
 
 JSON_TEST_FILES = \
diff --git a/src/bitcoin-tx.cpp b/src/bitcoin-tx.cpp
index e389d51a7..97a073174 100644
--- a/src/bitcoin-tx.cpp
+++ b/src/bitcoin-tx.cpp
@@ -70,6 +70,7 @@ static bool AppInitRawTx(int argc, char* argv[])
         strUsage += HelpMessageOpt("locktime=N", _("Set TX lock time to N"));
         strUsage += HelpMessageOpt("nversion=N", _("Set TX version to N"));
         strUsage += HelpMessageOpt("outaddr=VALUE:ADDRESS", _("Add address-based output to TX"));
+        strUsage += HelpMessageOpt("outdata=[VALUE:]DATA", _("Add data-based output to TX"));
         strUsage += HelpMessageOpt("outscript=VALUE:SCRIPT", _("Add raw script output to TX"));
         strUsage += HelpMessageOpt("sign=SIGHASH-FLAGS", _("Add zero or more signatures to transaction") + ". " +
             _("This command requires JSON registers:") +
@@ -231,6 +232,35 @@ static void MutateTxAddOutAddr(CMutableTransaction& tx, const string& strInput)
     tx.vout.push_back(txout);
 }
 
+static void MutateTxAddOutData(CMutableTransaction& tx, const string& strInput)
+{
+    CAmount value = 0;
+
+    // separate [VALUE:]DATA in string
+    size_t pos = strInput.find(':');
+
+    if (pos==0)
+        throw runtime_error("TX output value not specified");
+
+    if (pos != string::npos) {
+        // extract and validate VALUE
+        string strValue = strInput.substr(0, pos);
+        if (!ParseMoney(strValue, value))
+            throw runtime_error("invalid TX output value");
+    }
+
+    // extract and validate DATA
+    string strData = strInput.substr(pos + 1, string::npos);
+
+    if (!IsHex(strData))
+        throw runtime_error("invalid TX output data");
+
+    std::vector<unsigned char> data = ParseHex(strData);
+
+    CTxOut txout(value, CScript() << OP_RETURN << data);
+    tx.vout.push_back(txout);
+}
+
 static void MutateTxAddOutScript(CMutableTransaction& tx, const string& strInput)
 {
     // separate VALUE:SCRIPT in string
@@ -470,6 +500,8 @@ static void MutateTx(CMutableTransaction& tx, const string& command,
         MutateTxDelOutput(tx, commandVal);
     else if (command == "outaddr")
         MutateTxAddOutAddr(tx, commandVal);
+    else if (command == "outdata")
+        MutateTxAddOutData(tx, commandVal);
     else if (command == "outscript")
         MutateTxAddOutScript(tx, commandVal);
 
diff --git a/src/main.cpp b/src/main.cpp
index bb0ca9db5..9f42819a0 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -1023,7 +1023,7 @@ bool GetTransaction(const uint256 &hash, CTransaction &txOut, uint256 &hashBlock
 // CBlock and CBlockIndex
 //
 
-bool WriteBlockToDisk(CBlock& block, CDiskBlockPos& pos, const CMessageHeader::MessageStartChars& messageStart)
+bool WriteBlockToDisk(const CBlock& block, CDiskBlockPos& pos, const CMessageHeader::MessageStartChars& messageStart)
 {
     // Open history file to append
     CAutoFile fileout(OpenBlockFile(pos), SER_DISK, CLIENT_VERSION);
@@ -1216,9 +1216,11 @@ void static InvalidChainFound(CBlockIndex* pindexNew)
       pindexNew->GetBlockHash().ToString(), pindexNew->nHeight,
       log(pindexNew->nChainWork.getdouble())/log(2.0), DateTimeStrFormat("%Y-%m-%d %H:%M:%S",
       pindexNew->GetBlockTime()));
+    CBlockIndex *tip = chainActive.Tip();
+    assert (tip);
     LogPrintf("%s:  current best=%s  height=%d  log2_work=%.8g  date=%s\n", __func__,
-      chainActive.Tip()->GetBlockHash().ToString(), chainActive.Height(), log(chainActive.Tip()->nChainWork.getdouble())/log(2.0),
-      DateTimeStrFormat("%Y-%m-%d %H:%M:%S", chainActive.Tip()->GetBlockTime()));
+      tip->GetBlockHash().ToString(), chainActive.Height(), log(tip->nChainWork.getdouble())/log(2.0),
+      DateTimeStrFormat("%Y-%m-%d %H:%M:%S", tip->GetBlockTime()));
     CheckForkWarningConditions();
 }
 
@@ -1502,7 +1504,7 @@ static bool ApplyTxInUndo(const CTxInUndo& undo, CCoinsViewCache& view, const CO
     return fClean;
 }
 
-bool DisconnectBlock(CBlock& block, CValidationState& state, CBlockIndex* pindex, CCoinsViewCache& view, bool* pfClean)
+bool DisconnectBlock(const CBlock& block, CValidationState& state, const CBlockIndex* pindex, CCoinsViewCache& view, bool* pfClean)
 {
     assert(pindex->GetBlockHash() == view.GetBestBlock());
 
@@ -2060,7 +2062,7 @@ static int64_t nTimePostConnect = 0;
  * Connect a new block to chainActive. pblock is either NULL or a pointer to a CBlock
  * corresponding to pindexNew, to bypass loading it again from disk.
  */
-bool static ConnectTip(CValidationState &state, CBlockIndex *pindexNew, CBlock *pblock) {
+bool static ConnectTip(CValidationState &state, CBlockIndex *pindexNew, const CBlock *pblock) {
     assert(pindexNew->pprev == chainActive.Tip());
     mempool.check(pcoinsTip);
     // Read block from disk.
@@ -2192,7 +2194,7 @@ static void PruneBlockIndexCandidates() {
  * Try to make some progress towards making pindexMostWork the active block.
  * pblock is either NULL or a pointer to a CBlock corresponding to pindexMostWork.
  */
-static bool ActivateBestChainStep(CValidationState &state, CBlockIndex *pindexMostWork, CBlock *pblock) {
+static bool ActivateBestChainStep(CValidationState &state, CBlockIndex *pindexMostWork, const CBlock *pblock) {
     AssertLockHeld(cs_main);
     bool fInvalidFound = false;
     const CBlockIndex *pindexOldTip = chainActive.Tip();
@@ -2261,7 +2263,7 @@ static bool ActivateBestChainStep(CValidationState &state, CBlockIndex *pindexMo
  * or an activated best chain. pblock is either NULL or a pointer to a block
  * that is already loaded (to avoid loading it again from disk).
  */
-bool ActivateBestChain(CValidationState &state, CBlock *pblock) {
+bool ActivateBestChain(CValidationState &state, const CBlock *pblock) {
     CBlockIndex *pindexNewTip = NULL;
     CBlockIndex *pindexMostWork = NULL;
     const CChainParams& chainParams = Params();
@@ -2734,7 +2736,7 @@ bool AcceptBlockHeader(const CBlockHeader& block, CValidationState& state, CBloc
     return true;
 }
 
-bool AcceptBlock(CBlock& block, CValidationState& state, CBlockIndex** ppindex, bool fRequested, CDiskBlockPos* dbp)
+bool AcceptBlock(const CBlock& block, CValidationState& state, CBlockIndex** ppindex, bool fRequested, CDiskBlockPos* dbp)
 {
     const CChainParams& chainparams = Params();
     AssertLockHeld(cs_main);
@@ -2811,7 +2813,7 @@ static bool IsSuperMajority(int minVersion, const CBlockIndex* pstart, unsigned
 }
 
 
-bool ProcessNewBlock(CValidationState &state, CNode* pfrom, CBlock* pblock, bool fForceProcessing, CDiskBlockPos *dbp)
+bool ProcessNewBlock(CValidationState &state, const CNode* pfrom, const CBlock* pblock, bool fForceProcessing, CDiskBlockPos *dbp)
 {
     // Preliminary checks
     bool checked = CheckBlock(*pblock, state);
diff --git a/src/main.h b/src/main.h
index 5c54b11d4..e3479b4b3 100644
--- a/src/main.h
+++ b/src/main.h
@@ -142,7 +142,7 @@ void UnregisterNodeSignals(CNodeSignals& nodeSignals);
  * @param[out]  dbp     If pblock is stored to disk (or already there), this will be set to its location.
  * @return True if state.IsValid()
  */
-bool ProcessNewBlock(CValidationState &state, CNode* pfrom, CBlock* pblock, bool fForceProcessing, CDiskBlockPos *dbp);
+bool ProcessNewBlock(CValidationState &state, const CNode* pfrom, const CBlock* pblock, bool fForceProcessing, CDiskBlockPos *dbp);
 /** Check whether enough disk space is available for an incoming block */
 bool CheckDiskSpace(uint64_t nAdditionalBytes = 0);
 /** Open a block file (blk?????.dat) */
@@ -179,7 +179,7 @@ std::string GetWarnings(const std::string& strFor);
 /** Retrieve a transaction (from memory pool, or from disk, if possible) */
 bool GetTransaction(const uint256 &hash, CTransaction &tx, uint256 &hashBlock, bool fAllowSlow = false);
 /** Find the best known block, and make it the tip of the block chain */
-bool ActivateBestChain(CValidationState &state, CBlock *pblock = NULL);
+bool ActivateBestChain(CValidationState &state, const CBlock *pblock = NULL);
 CAmount GetBlockSubsidy(int nHeight, const Consensus::Params& consensusParams);
 
 /**
@@ -335,7 +335,7 @@ public:
 
 
 /** Functions for disk access for blocks */
-bool WriteBlockToDisk(CBlock& block, CDiskBlockPos& pos, const CMessageHeader::MessageStartChars& messageStart);
+bool WriteBlockToDisk(const CBlock& block, CDiskBlockPos& pos, const CMessageHeader::MessageStartChars& messageStart);
 bool ReadBlockFromDisk(CBlock& block, const CDiskBlockPos& pos);
 bool ReadBlockFromDisk(CBlock& block, const CBlockIndex* pindex);
 
@@ -346,7 +346,7 @@ bool ReadBlockFromDisk(CBlock& block, const CBlockIndex* pindex);
  *  In case pfClean is provided, operation will try to be tolerant about errors, and *pfClean
  *  will be true if no problems were found. Otherwise, the return value will be false in case
  *  of problems. Note that in any case, coins may be modified. */
-bool DisconnectBlock(CBlock& block, CValidationState& state, CBlockIndex* pindex, CCoinsViewCache& coins, bool* pfClean = NULL);
+bool DisconnectBlock(const CBlock& block, CValidationState& state, const CBlockIndex* pindex, CCoinsViewCache& coins, bool* pfClean = NULL);
 
 /** Apply the effects of this block (with given index) on the UTXO set represented by coins */
 bool ConnectBlock(const CBlock& block, CValidationState& state, CBlockIndex* pindex, CCoinsViewCache& coins, bool fJustCheck = false);
@@ -363,7 +363,7 @@ bool ContextualCheckBlock(const CBlock& block, CValidationState& state, CBlockIn
 bool TestBlockValidity(CValidationState &state, const CBlock& block, CBlockIndex *pindexPrev, bool fCheckPOW = true, bool fCheckMerkleRoot = true);
 
 /** Store block on disk. If dbp is non-NULL, the file is known to already reside on disk */
-bool AcceptBlock(CBlock& block, CValidationState& state, CBlockIndex **pindex, bool fRequested, CDiskBlockPos* dbp);
+bool AcceptBlock(const CBlock& block, CValidationState& state, CBlockIndex **pindex, bool fRequested, CDiskBlockPos* dbp);
 bool AcceptBlockHeader(const CBlockHeader& block, CValidationState& state, CBlockIndex **ppindex= NULL);
 
 
diff --git a/src/miner.cpp b/src/miner.cpp
index e44f3392c..417226606 100644
--- a/src/miner.cpp
+++ b/src/miner.cpp
@@ -84,13 +84,19 @@ public:
     }
 };
 
-void UpdateTime(CBlockHeader* pblock, const Consensus::Params& consensusParams, const CBlockIndex* pindexPrev)
+int64_t UpdateTime(CBlockHeader* pblock, const Consensus::Params& consensusParams, const CBlockIndex* pindexPrev)
 {
-    pblock->nTime = std::max(pindexPrev->GetMedianTimePast()+1, GetAdjustedTime());
+    int64_t nOldTime = pblock->nTime;
+    int64_t nNewTime = std::max(pindexPrev->GetMedianTimePast()+1, GetAdjustedTime());
+
+    if (nOldTime < nNewTime)
+        pblock->nTime = nNewTime;
 
     // Updating time can change work required on testnet:
     if (consensusParams.fPowAllowMinDifficultyBlocks)
         pblock->nBits = GetNextWorkRequired(pindexPrev, pblock, consensusParams);
+
+    return nNewTime - nOldTime;
 }
 
 CBlockTemplate* CreateNewBlock(const CScript& scriptPubKeyIn)
@@ -346,7 +352,7 @@ CBlockTemplate* CreateNewBlock(const CScript& scriptPubKeyIn)
     return pblocktemplate.release();
 }
 
-void IncrementExtraNonce(CBlock* pblock, CBlockIndex* pindexPrev, unsigned int& nExtraNonce)
+void IncrementExtraNonce(CBlock* pblock, const CBlockIndex* pindexPrev, unsigned int& nExtraNonce)
 {
     // Update nExtraNonce
     static uint256 hashPrevBlock;
@@ -403,7 +409,7 @@ bool static ScanHash(const CBlockHeader *pblock, uint32_t& nNonce, uint256 *phas
     }
 }
 
-static bool ProcessBlockFound(CBlock* pblock, const CChainParams& chainparams)
+static bool ProcessBlockFound(const CBlock* pblock, const CChainParams& chainparams)
 {
     LogPrintf("%s\n", pblock->ToString());
     LogPrintf("generated %s\n", FormatMoney(pblock->vtx[0].vout[0].nValue));
@@ -521,7 +527,9 @@ void static BitcoinMiner(const CChainParams& chainparams)
                     break;
 
                 // Update nTime every few seconds
-                UpdateTime(pblock, chainparams.GetConsensus(), pindexPrev);
+                if (UpdateTime(pblock, chainparams.GetConsensus(), pindexPrev) < 0)
+                    break; // Recreate the block if the clock has run backwards,
+                           // so that we can use the correct time.
                 if (chainparams.GetConsensus().fPowAllowMinDifficultyBlocks)
                 {
                     // Changing pblock->nTime can change work required on testnet:
diff --git a/src/miner.h b/src/miner.h
index 777a09196..7e0e58d54 100644
--- a/src/miner.h
+++ b/src/miner.h
@@ -29,7 +29,7 @@ void GenerateBitcoins(bool fGenerate, int nThreads, const CChainParams& chainpar
 /** Generate a new block, without valid proof-of-work */
 CBlockTemplate* CreateNewBlock(const CScript& scriptPubKeyIn);
 /** Modify the extranonce in a block */
-void IncrementExtraNonce(CBlock* pblock, CBlockIndex* pindexPrev, unsigned int& nExtraNonce);
-void UpdateTime(CBlockHeader* pblock, const Consensus::Params& consensusParams, const CBlockIndex* pindexPrev);
+void IncrementExtraNonce(CBlock* pblock, const CBlockIndex* pindexPrev, unsigned int& nExtraNonce);
+int64_t UpdateTime(CBlockHeader* pblock, const Consensus::Params& consensusParams, const CBlockIndex* pindexPrev);
 
 #endif // BITCOIN_MINER_H
diff --git a/src/qt/clientmodel.cpp b/src/qt/clientmodel.cpp
index 41dc2ea77..97d671156 100644
--- a/src/qt/clientmodel.cpp
+++ b/src/qt/clientmodel.cpp
@@ -181,6 +181,11 @@ QString ClientModel::formatFullVersion() const
     return QString::fromStdString(FormatFullVersion());
 }
 
+QString ClientModel::formatSubVersion() const
+{
+    return QString::fromStdString(strSubVersion);
+}
+
 QString ClientModel::formatBuildDate() const
 {
     return QString::fromStdString(CLIENT_DATE);
diff --git a/src/qt/clientmodel.h b/src/qt/clientmodel.h
index 68434f404..ca2da3dde 100644
--- a/src/qt/clientmodel.h
+++ b/src/qt/clientmodel.h
@@ -63,6 +63,7 @@ public:
     QString getStatusBarWarnings() const;
 
     QString formatFullVersion() const;
+    QString formatSubVersion() const;
     QString formatBuildDate() const;
     bool isReleaseVersion() const;
     QString clientName() const;
diff --git a/src/qt/forms/optionsdialog.ui b/src/qt/forms/optionsdialog.ui
index 55c4f5ac5..22c67b804 100644
--- a/src/qt/forms/optionsdialog.ui
+++ b/src/qt/forms/optionsdialog.ui
@@ -7,7 +7,7 @@
     <x>0</x>
     <y>0</y>
     <width>560</width>
-    <height>400</height>
+    <height>440</height>
    </rect>
   </property>
   <property name="windowTitle">
@@ -298,6 +298,193 @@
         </layout>
        </item>
        <item>
+        <layout class="QHBoxLayout" name="horizontalLayout_2_Network">
+         <item>
+          <widget class="QLabel" name="proxyActiveNets">
+           <property name="text">
+            <string>Used for reaching peers via:</string>
+           </property>
+           <property name="textFormat">
+            <enum>Qt::PlainText</enum>
+           </property>
+          </widget>
+         </item>
+         <item>
+          <widget class="QCheckBox" name="proxyReachIPv4">
+           <property name="enabled">
+            <bool>false</bool>
+           </property>
+           <property name="toolTip">
+            <string>Shows, if the supplied default SOCKS5 proxy is used to reach peers via this network type.</string>
+           </property>
+           <property name="text">
+            <string/>
+           </property>
+          </widget>
+         </item>
+         <item>
+          <widget class="QLabel" name="proxyReachIPv4Label">
+           <property name="text">
+            <string>IPv4</string>
+           </property>
+           <property name="textFormat">
+            <enum>Qt::PlainText</enum>
+           </property>
+          </widget>
+         </item>
+         <item>
+          <widget class="QCheckBox" name="proxyReachIPv6">
+           <property name="enabled">
+            <bool>false</bool>
+           </property>
+           <property name="toolTip">
+            <string>Shows, if the supplied default SOCKS5 proxy is used to reach peers via this network type.</string>
+           </property>
+           <property name="text">
+            <string/>
+           </property>
+          </widget>
+         </item>
+         <item>
+          <widget class="QLabel" name="proxyReachIPv6Label">
+           <property name="text">
+            <string>IPv6</string>
+           </property>
+           <property name="textFormat">
+            <enum>Qt::PlainText</enum>
+           </property>
+          </widget>
+         </item>
+         <item>
+          <widget class="QCheckBox" name="proxyReachTor">
+           <property name="enabled">
+            <bool>false</bool>
+           </property>
+           <property name="toolTip">
+            <string>Shows, if the supplied default SOCKS5 proxy is used to reach peers via this network type.</string>
+           </property>
+           <property name="text">
+            <string/>
+           </property>
+          </widget>
+         </item>
+         <item>
+          <widget class="QLabel" name="proxyReachTorLabel">
+           <property name="text">
+            <string>Tor</string>
+           </property>
+           <property name="textFormat">
+            <enum>Qt::PlainText</enum>
+           </property>
+          </widget>
+         </item>
+         <item>
+          <spacer name="horizontalSpacer_2_Network">
+           <property name="orientation">
+            <enum>Qt::Horizontal</enum>
+           </property>
+           <property name="sizeHint" stdset="0">
+            <size>
+             <width>40</width>
+             <height>20</height>
+            </size>
+           </property>
+          </spacer>
+         </item>
+        </layout>
+       </item>
+       <item>
+        <widget class="QCheckBox" name="connectSocksTor">
+         <property name="toolTip">
+          <string>Connect to the Bitcoin network through a separate SOCKS5 proxy for Tor hidden services.</string>
+         </property>
+         <property name="text">
+          <string>Use separate SOCKS5 proxy to reach peers via Tor hidden services:</string>
+         </property>
+        </widget>
+       </item>
+       <item>
+        <layout class="QHBoxLayout" name="horizontalLayout_3_Network">
+         <item>
+          <widget class="QLabel" name="proxyIpTorLabel">
+           <property name="text">
+            <string>Proxy &amp;IP:</string>
+           </property>
+           <property name="textFormat">
+            <enum>Qt::PlainText</enum>
+           </property>
+           <property name="buddy">
+            <cstring>proxyIpTor</cstring>
+           </property>
+          </widget>
+         </item>
+         <item>
+          <widget class="QValidatedLineEdit" name="proxyIpTor">
+           <property name="minimumSize">
+            <size>
+             <width>140</width>
+             <height>0</height>
+            </size>
+           </property>
+           <property name="maximumSize">
+            <size>
+             <width>140</width>
+             <height>16777215</height>
+            </size>
+           </property>
+           <property name="toolTip">
+            <string>IP address of the proxy (e.g. IPv4: 127.0.0.1 / IPv6: ::1)</string>
+           </property>
+          </widget>
+         </item>
+         <item>
+          <widget class="QLabel" name="proxyPortTorLabel">
+           <property name="text">
+            <string>&amp;Port:</string>
+           </property>
+           <property name="textFormat">
+            <enum>Qt::PlainText</enum>
+           </property>
+           <property name="buddy">
+            <cstring>proxyPortTor</cstring>
+           </property>
+          </widget>
+         </item>
+         <item>
+          <widget class="QLineEdit" name="proxyPortTor">
+           <property name="minimumSize">
+            <size>
+             <width>55</width>
+             <height>0</height>
+            </size>
+           </property>
+           <property name="maximumSize">
+            <size>
+             <width>55</width>
+             <height>16777215</height>
+            </size>
+           </property>
+           <property name="toolTip">
+            <string>Port of the proxy (e.g. 9050)</string>
+           </property>
+          </widget>
+         </item>
+         <item>
+          <spacer name="horizontalSpacer_4_Network">
+           <property name="orientation">
+            <enum>Qt::Horizontal</enum>
+           </property>
+           <property name="sizeHint" stdset="0">
+            <size>
+             <width>40</width>
+             <height>20</height>
+            </size>
+           </property>
+          </spacer>
+         </item>
+        </layout>
+       </item>
+       <item>
         <spacer name="verticalSpacer_Network">
          <property name="orientation">
           <enum>Qt::Vertical</enum>
diff --git a/src/qt/forms/rpcconsole.ui b/src/qt/forms/rpcconsole.ui
index 7ae823747..e8d9a958a 100644
--- a/src/qt/forms/rpcconsole.ui
+++ b/src/qt/forms/rpcconsole.ui
@@ -87,6 +87,32 @@
         </widget>
        </item>
        <item row="3" column="0">
+        <widget class="QLabel" name="labelClientUserAgent">
+         <property name="text">
+          <string>User Agent</string>
+         </property>
+         <property name="indent">
+          <number>10</number>
+         </property>
+        </widget>
+       </item>
+       <item row="3" column="1">
+        <widget class="QLabel" name="clientUserAgent">
+         <property name="cursor">
+          <cursorShape>IBeamCursor</cursorShape>
+         </property>
+         <property name="text">
+          <string>N/A</string>
+         </property>
+         <property name="textFormat">
+          <enum>Qt::PlainText</enum>
+         </property>
+         <property name="textInteractionFlags">
+          <set>Qt::LinksAccessibleByMouse|Qt::TextSelectableByKeyboard|Qt::TextSelectableByMouse</set>
+         </property>
+        </widget>
+       </item>
+       <item row="4" column="0">
         <widget class="QLabel" name="label_14">
          <property name="text">
           <string>Using OpenSSL version</string>
@@ -96,7 +122,7 @@
          </property>
         </widget>
        </item>
-       <item row="3" column="1">
+       <item row="4" column="1">
         <widget class="QLabel" name="openSSLVersion">
          <property name="cursor">
           <cursorShape>IBeamCursor</cursorShape>
@@ -112,7 +138,7 @@
          </property>
         </widget>
        </item>
-       <item row="4" column="0">
+       <item row="5" column="0">
         <widget class="QLabel" name="label_berkeleyDBVersion">
          <property name="text">
           <string>Using BerkeleyDB version</string>
@@ -122,7 +148,7 @@
          </property>
         </widget>
        </item>
-       <item row="4" column="1">
+       <item row="5" column="1">
         <widget class="QLabel" name="berkeleyDBVersion">
          <property name="cursor">
           <cursorShape>IBeamCursor</cursorShape>
@@ -138,14 +164,14 @@
          </property>
         </widget>
        </item>
-       <item row="5" column="0">
+       <item row="6" column="0">
         <widget class="QLabel" name="label_12">
          <property name="text">
           <string>Build date</string>
          </property>
         </widget>
        </item>
-       <item row="5" column="1">
+       <item row="6" column="1">
         <widget class="QLabel" name="buildDate">
          <property name="cursor">
           <cursorShape>IBeamCursor</cursorShape>
@@ -161,14 +187,14 @@
          </property>
         </widget>
        </item>
-       <item row="6" column="0">
+       <item row="7" column="0">
         <widget class="QLabel" name="label_13">
          <property name="text">
           <string>Startup time</string>
          </property>
         </widget>
        </item>
-       <item row="6" column="1">
+       <item row="7" column="1">
         <widget class="QLabel" name="startupTime">
          <property name="cursor">
           <cursorShape>IBeamCursor</cursorShape>
@@ -184,7 +210,7 @@
          </property>
         </widget>
        </item>
-       <item row="7" column="0">
+       <item row="8" column="0">
         <widget class="QLabel" name="label_11">
          <property name="font">
           <font>
@@ -197,14 +223,14 @@
          </property>
         </widget>
        </item>
-       <item row="8" column="0">
+       <item row="9" column="0">
         <widget class="QLabel" name="label_8">
          <property name="text">
           <string>Name</string>
          </property>
         </widget>
        </item>
-       <item row="8" column="1">
+       <item row="9" column="1">
         <widget class="QLabel" name="networkName">
          <property name="cursor">
           <cursorShape>IBeamCursor</cursorShape>
@@ -220,14 +246,14 @@
          </property>
         </widget>
        </item>
-       <item row="9" column="0">
+       <item row="10" column="0">
         <widget class="QLabel" name="label_7">
          <property name="text">
           <string>Number of connections</string>
          </property>
         </widget>
        </item>
-       <item row="9" column="1">
+       <item row="10" column="1">
         <widget class="QLabel" name="numberOfConnections">
          <property name="cursor">
           <cursorShape>IBeamCursor</cursorShape>
@@ -243,7 +269,7 @@
          </property>
         </widget>
        </item>
-       <item row="10" column="0">
+       <item row="11" column="0">
         <widget class="QLabel" name="label_10">
          <property name="font">
           <font>
@@ -256,14 +282,14 @@
          </property>
         </widget>
        </item>
-       <item row="11" column="0">
+       <item row="12" column="0">
         <widget class="QLabel" name="label_3">
          <property name="text">
           <string>Current number of blocks</string>
          </property>
         </widget>
        </item>
-       <item row="11" column="1">
+       <item row="12" column="1">
         <widget class="QLabel" name="numberOfBlocks">
          <property name="cursor">
           <cursorShape>IBeamCursor</cursorShape>
@@ -279,14 +305,14 @@
          </property>
         </widget>
        </item>
-       <item row="12" column="0">
+       <item row="13" column="0">
         <widget class="QLabel" name="label_2">
          <property name="text">
           <string>Last block time</string>
          </property>
         </widget>
        </item>
-       <item row="12" column="1">
+       <item row="13" column="1">
         <widget class="QLabel" name="lastBlockTime">
          <property name="cursor">
           <cursorShape>IBeamCursor</cursorShape>
@@ -302,7 +328,7 @@
          </property>
         </widget>
        </item>
-       <item row="13" column="0">
+       <item row="14" column="0">
         <spacer name="verticalSpacer_2">
          <property name="orientation">
           <enum>Qt::Vertical</enum>
@@ -315,7 +341,7 @@
          </property>
         </spacer>
        </item>
-       <item row="14" column="0">
+       <item row="15" column="0">
         <widget class="QLabel" name="labelDebugLogfile">
          <property name="font">
           <font>
@@ -328,7 +354,7 @@
          </property>
         </widget>
        </item>
-       <item row="15" column="0">
+       <item row="16" column="0">
         <widget class="QPushButton" name="openDebugLogfileButton">
          <property name="toolTip">
           <string>Open the Bitcoin Core debug log file from the current data directory. This can take a few seconds for large log files.</string>
@@ -341,7 +367,7 @@
          </property>
         </widget>
        </item>
-       <item row="16" column="0">
+       <item row="17" column="0">
         <spacer name="verticalSpacer">
          <property name="orientation">
           <enum>Qt::Vertical</enum>
diff --git a/src/qt/optionsdialog.cpp b/src/qt/optionsdialog.cpp
index 062c4540e..f57c1203f 100644
--- a/src/qt/optionsdialog.cpp
+++ b/src/qt/optionsdialog.cpp
@@ -35,7 +35,7 @@ OptionsDialog::OptionsDialog(QWidget *parent, bool enableWallet) :
     ui(new Ui::OptionsDialog),
     model(0),
     mapper(0),
-    fProxyIpValid(true)
+    fProxyIpsValid(true)
 {
     ui->setupUi(this);
 
@@ -54,10 +54,18 @@ OptionsDialog::OptionsDialog(QWidget *parent, bool enableWallet) :
     ui->proxyPort->setEnabled(false);
     ui->proxyPort->setValidator(new QIntValidator(1, 65535, this));
 
+    ui->proxyIpTor->setEnabled(false);
+    ui->proxyPortTor->setEnabled(false);
+    ui->proxyPortTor->setValidator(new QIntValidator(1, 65535, this));
+
     connect(ui->connectSocks, SIGNAL(toggled(bool)), ui->proxyIp, SLOT(setEnabled(bool)));
     connect(ui->connectSocks, SIGNAL(toggled(bool)), ui->proxyPort, SLOT(setEnabled(bool)));
 
+    connect(ui->connectSocksTor, SIGNAL(toggled(bool)), ui->proxyIpTor, SLOT(setEnabled(bool)));
+    connect(ui->connectSocksTor, SIGNAL(toggled(bool)), ui->proxyPortTor, SLOT(setEnabled(bool)));
+
     ui->proxyIp->installEventFilter(this);
+    ui->proxyIpTor->installEventFilter(this);
 
     /* Window elements init */
 #ifdef Q_OS_MAC
@@ -110,7 +118,7 @@ OptionsDialog::OptionsDialog(QWidget *parent, bool enableWallet) :
     mapper->setSubmitPolicy(QDataWidgetMapper::ManualSubmit);
     mapper->setOrientation(Qt::Vertical);
 
-    /* setup/change UI elements when proxy IP is invalid/valid */
+    /* setup/change UI elements when proxy IPs are invalid/valid */
     connect(this, SIGNAL(proxyIpChecks(QValidatedLineEdit *, int)), this, SLOT(doProxyIpChecks(QValidatedLineEdit *, int)));
 }
 
@@ -137,6 +145,8 @@ void OptionsDialog::setModel(OptionsModel *model)
         mapper->setModel(model);
         setMapper();
         mapper->toFirst();
+
+        updateDefaultProxyNets();
     }
 
     /* warn when one of the following settings changes by user action (placed here so init via mapper doesn't trigger them) */
@@ -149,6 +159,7 @@ void OptionsDialog::setModel(OptionsModel *model)
     /* Network */
     connect(ui->allowIncoming, SIGNAL(clicked(bool)), this, SLOT(showRestartWarning()));
     connect(ui->connectSocks, SIGNAL(clicked(bool)), this, SLOT(showRestartWarning()));
+    connect(ui->connectSocksTor, SIGNAL(clicked(bool)), this, SLOT(showRestartWarning()));
     /* Display */
     connect(ui->lang, SIGNAL(valueChanged()), this, SLOT(showRestartWarning()));
     connect(ui->thirdPartyTxUrls, SIGNAL(textChanged(const QString &)), this, SLOT(showRestartWarning()));
@@ -173,6 +184,10 @@ void OptionsDialog::setMapper()
     mapper->addMapping(ui->proxyIp, OptionsModel::ProxyIP);
     mapper->addMapping(ui->proxyPort, OptionsModel::ProxyPort);
 
+    mapper->addMapping(ui->connectSocksTor, OptionsModel::ProxyUseTor);
+    mapper->addMapping(ui->proxyIpTor, OptionsModel::ProxyIPTor);
+    mapper->addMapping(ui->proxyPortTor, OptionsModel::ProxyPortTor);
+
     /* Window */
 #ifndef Q_OS_MAC
     mapper->addMapping(ui->minimizeToTray, OptionsModel::MinimizeToTray);
@@ -188,7 +203,7 @@ void OptionsDialog::setMapper()
 void OptionsDialog::enableOkButton()
 {
     /* prevent enabling of the OK button when data modified, if there is an invalid proxy address present */
-    if(fProxyIpValid)
+    if(fProxyIpsValid)
         setOkButtonState(true);
 }
 
@@ -224,6 +239,7 @@ void OptionsDialog::on_okButton_clicked()
 {
     mapper->submit();
     accept();
+    updateDefaultProxyNets();
 }
 
 void OptionsDialog::on_cancelButton_clicked()
@@ -257,11 +273,10 @@ void OptionsDialog::doProxyIpChecks(QValidatedLineEdit *pUiProxyIp, int nProxyPo
 {
     Q_UNUSED(nProxyPort);
 
-    const std::string strAddrProxy = pUiProxyIp->text().toStdString();
     CService addrProxy;
 
     /* Check for a valid IPv4 / IPv6 address */
-    if (!(fProxyIpValid = LookupNumeric(strAddrProxy.c_str(), addrProxy)))
+    if (!(fProxyIpsValid = LookupNumeric(pUiProxyIp->text().toStdString().c_str(), addrProxy)))
     {
         disableOkButton();
         pUiProxyIp->setValid(false);
@@ -275,6 +290,28 @@ void OptionsDialog::doProxyIpChecks(QValidatedLineEdit *pUiProxyIp, int nProxyPo
     }
 }
 
+void OptionsDialog::updateDefaultProxyNets()
+{
+    proxyType proxy;
+    std::string strProxy;
+    QString strDefaultProxyGUI;
+
+    GetProxy(NET_IPV4, proxy);
+    strProxy = proxy.proxy.ToStringIP() + ":" + proxy.proxy.ToStringPort();
+    strDefaultProxyGUI = ui->proxyIp->text() + ":" + ui->proxyPort->text();
+    (strProxy == strDefaultProxyGUI.toStdString()) ? ui->proxyReachIPv4->setChecked(true) : ui->proxyReachIPv4->setChecked(false);
+
+    GetProxy(NET_IPV6, proxy);
+    strProxy = proxy.proxy.ToStringIP() + ":" + proxy.proxy.ToStringPort();
+    strDefaultProxyGUI = ui->proxyIp->text() + ":" + ui->proxyPort->text();
+    (strProxy == strDefaultProxyGUI.toStdString()) ? ui->proxyReachIPv6->setChecked(true) : ui->proxyReachIPv6->setChecked(false);
+
+    GetProxy(NET_TOR, proxy);
+    strProxy = proxy.proxy.ToStringIP() + ":" + proxy.proxy.ToStringPort();
+    strDefaultProxyGUI = ui->proxyIp->text() + ":" + ui->proxyPort->text();
+    (strProxy == strDefaultProxyGUI.toStdString()) ? ui->proxyReachTor->setChecked(true) : ui->proxyReachTor->setChecked(false);
+}
+
 bool OptionsDialog::eventFilter(QObject *object, QEvent *event)
 {
     if(event->type() == QEvent::FocusOut)
@@ -283,6 +320,10 @@ bool OptionsDialog::eventFilter(QObject *object, QEvent *event)
         {
             Q_EMIT proxyIpChecks(ui->proxyIp, ui->proxyPort->text().toInt());
         }
+        else if(object == ui->proxyIpTor)
+        {
+            Q_EMIT proxyIpChecks(ui->proxyIpTor, ui->proxyPortTor->text().toInt());
+        }
     }
     return QDialog::eventFilter(object, event);
 }
diff --git a/src/qt/optionsdialog.h b/src/qt/optionsdialog.h
index fa983e798..348489c59 100644
--- a/src/qt/optionsdialog.h
+++ b/src/qt/optionsdialog.h
@@ -47,6 +47,8 @@ private Q_SLOTS:
     void showRestartWarning(bool fPersistent = false);
     void clearStatusLabel();
     void doProxyIpChecks(QValidatedLineEdit *pUiProxyIp, int nProxyPort);
+    /* query the networks, for which the default proxy is used */
+    void updateDefaultProxyNets();
 
 Q_SIGNALS:
     void proxyIpChecks(QValidatedLineEdit *pUiProxyIp, int nProxyPort);
@@ -55,7 +57,7 @@ private:
     Ui::OptionsDialog *ui;
     OptionsModel *model;
     QDataWidgetMapper *mapper;
-    bool fProxyIpValid;
+    bool fProxyIpsValid;
 };
 
 #endif // BITCOIN_QT_OPTIONSDIALOG_H
diff --git a/src/qt/optionsmodel.cpp b/src/qt/optionsmodel.cpp
index 6191edc44..65e490570 100644
--- a/src/qt/optionsmodel.cpp
+++ b/src/qt/optionsmodel.cpp
@@ -117,6 +117,16 @@ void OptionsModel::Init()
     else if(!settings.value("fUseProxy").toBool() && !GetArg("-proxy", "").empty())
         addOverriddenOption("-proxy");
 
+    if (!settings.contains("fUseSeparateProxyTor"))
+        settings.setValue("fUseSeparateProxyTor", false);
+    if (!settings.contains("addrSeparateProxyTor"))
+        settings.setValue("addrSeparateProxyTor", "127.0.0.1:9050");
+    // Only try to set -onion, if user has enabled fUseSeparateProxyTor
+    if (settings.value("fUseSeparateProxyTor").toBool() && !SoftSetArg("-onion", settings.value("addrSeparateProxyTor").toString().toStdString()))
+        addOverriddenOption("-onion");
+    else if(!settings.value("fUseSeparateProxyTor").toBool() && !GetArg("-onion", "").empty())
+        addOverriddenOption("-onion");
+
     // Display
     if (!settings.contains("language"))
         settings.setValue("language", "");
@@ -178,6 +188,20 @@ QVariant OptionsModel::data(const QModelIndex & index, int role) const
             return strlIpPort.at(1);
         }
 
+        // separate Tor proxy
+        case ProxyUseTor:
+            return settings.value("fUseSeparateProxyTor", false);
+        case ProxyIPTor: {
+            // contains IP at index 0 and port at index 1
+            QStringList strlIpPort = settings.value("addrSeparateProxyTor").toString().split(":", QString::SkipEmptyParts);
+            return strlIpPort.at(0);
+        }
+        case ProxyPortTor: {
+            // contains IP at index 0 and port at index 1
+            QStringList strlIpPort = settings.value("addrSeparateProxyTor").toString().split(":", QString::SkipEmptyParts);
+            return strlIpPort.at(1);
+        }
+
 #ifdef ENABLE_WALLET
         case SpendZeroConfChange:
             return settings.value("bSpendZeroConfChange");
@@ -259,6 +283,39 @@ bool OptionsModel::setData(const QModelIndex & index, const QVariant & value, in
             }
         }
         break;
+
+        // separate Tor proxy
+        case ProxyUseTor:
+            if (settings.value("fUseSeparateProxyTor") != value) {
+                settings.setValue("fUseSeparateProxyTor", value.toBool());
+                setRestartRequired(true);
+            }
+            break;
+        case ProxyIPTor: {
+            // contains current IP at index 0 and current port at index 1
+            QStringList strlIpPort = settings.value("addrSeparateProxyTor").toString().split(":", QString::SkipEmptyParts);
+            // if that key doesn't exist or has a changed IP
+            if (!settings.contains("addrSeparateProxyTor") || strlIpPort.at(0) != value.toString()) {
+                // construct new value from new IP and current port
+                QString strNewValue = value.toString() + ":" + strlIpPort.at(1);
+                settings.setValue("addrSeparateProxyTor", strNewValue);
+                setRestartRequired(true);
+            }
+        }
+        break;
+        case ProxyPortTor: {
+            // contains current IP at index 0 and current port at index 1
+            QStringList strlIpPort = settings.value("addrSeparateProxyTor").toString().split(":", QString::SkipEmptyParts);
+            // if that key doesn't exist or has a changed port
+            if (!settings.contains("addrSeparateProxyTor") || strlIpPort.at(1) != value.toString()) {
+                // construct new value from current IP and new port
+                QString strNewValue = strlIpPort.at(0) + ":" + value.toString();
+                settings.setValue("addrSeparateProxyTor", strNewValue);
+                setRestartRequired(true);
+            }
+        }
+        break;
+
 #ifdef ENABLE_WALLET
         case SpendZeroConfChange:
             if (settings.value("bSpendZeroConfChange") != value) {
diff --git a/src/qt/optionsmodel.h b/src/qt/optionsmodel.h
index fc26d65b0..8448cad8d 100644
--- a/src/qt/optionsmodel.h
+++ b/src/qt/optionsmodel.h
@@ -34,6 +34,9 @@ public:
         ProxyUse,               // bool
         ProxyIP,                // QString
         ProxyPort,              // int
+        ProxyUseTor,            // bool
+        ProxyIPTor,             // QString
+        ProxyPortTor,           // int
         DisplayUnit,            // BitcoinUnits::Unit
         ThirdPartyTxUrls,       // QString
         Language,               // QString
diff --git a/src/qt/res/icons/about_qt.png b/src/qt/res/icons/about_qt.png
index dd27a99d0..c40abfd3a 100644
--- a/src/qt/res/icons/about_qt.png
+++ b/src/qt/res/icons/about_qt.png
diff --git a/src/qt/res/icons/clock1.png b/src/qt/res/icons/clock1.png
index ceae5ed0d..162204d1b 100644
--- a/src/qt/res/icons/clock1.png
+++ b/src/qt/res/icons/clock1.png
diff --git a/src/qt/res/icons/clock2.png b/src/qt/res/icons/clock2.png
index 159f69a8f..8f4263a31 100644
--- a/src/qt/res/icons/clock2.png
+++ b/src/qt/res/icons/clock2.png
diff --git a/src/qt/res/icons/clock3.png b/src/qt/res/icons/clock3.png
index d668e35ff..7f11a7566 100644
--- a/src/qt/res/icons/clock3.png
+++ b/src/qt/res/icons/clock3.png
diff --git a/src/qt/res/icons/clock4.png b/src/qt/res/icons/clock4.png
index 5ebf8ed7a..fdd1a0fce 100644
--- a/src/qt/res/icons/clock4.png
+++ b/src/qt/res/icons/clock4.png
diff --git a/src/qt/res/icons/clock5.png b/src/qt/res/icons/clock5.png
index 96f15ef7d..7d6556c6c 100644
--- a/src/qt/res/icons/clock5.png
+++ b/src/qt/res/icons/clock5.png
diff --git a/src/qt/res/icons/connect0.png b/src/qt/res/icons/connect0.png
index 58e2c3e96..ef708d81f 100644
--- a/src/qt/res/icons/connect0.png
+++ b/src/qt/res/icons/connect0.png
diff --git a/src/qt/res/icons/connect1.png b/src/qt/res/icons/connect1.png
index 949e7a922..ed358e6f8 100644
--- a/src/qt/res/icons/connect1.png
+++ b/src/qt/res/icons/connect1.png
diff --git a/src/qt/res/icons/connect2.png b/src/qt/res/icons/connect2.png
index 143b2054f..3bbb0d395 100644
--- a/src/qt/res/icons/connect2.png
+++ b/src/qt/res/icons/connect2.png
diff --git a/src/qt/res/icons/connect3.png b/src/qt/res/icons/connect3.png
index 143b2054f..0db99ad8d 100644
--- a/src/qt/res/icons/connect3.png
+++ b/src/qt/res/icons/connect3.png
diff --git a/src/qt/res/icons/connect4.png b/src/qt/res/icons/connect4.png
index f96e3455c..9dd19fc2b 100644
--- a/src/qt/res/icons/connect4.png
+++ b/src/qt/res/icons/connect4.png
diff --git a/src/qt/res/icons/transaction0.png b/src/qt/res/icons/transaction0.png
index 1091b86e6..72c44565e 100644
--- a/src/qt/res/icons/transaction0.png
+++ b/src/qt/res/icons/transaction0.png
diff --git a/src/qt/res/icons/warning.png b/src/qt/res/icons/warning.png
index 723a30a65..6bc5ac789 100644
--- a/src/qt/res/icons/warning.png
+++ b/src/qt/res/icons/warning.png
diff --git a/src/qt/res/src/clock_1.svg b/src/qt/res/src/clock_1.svg
index 4e49772d2..2a3d84c2d 100644
--- a/src/qt/res/src/clock_1.svg
+++ b/src/qt/res/src/clock_1.svg
@@ -9,5 +9,7 @@
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 </g>
-<polygon points="478.3,253.4 297.6,184.6 297.6,420.9 534,420.9 "/>
+<path
+	d="M 478.3,253.4 297.6,184.6 c 0,0 0,78.8 0,118.2 0,117.5 -0.4,118.1 118.2,118.1 39.4,0 118.2,0 118.2,0 z"
+	id="polygon7" />
 </svg>
diff --git a/src/qt/res/src/clock_2.svg b/src/qt/res/src/clock_2.svg
index 995446e46..2de8d467b 100644
--- a/src/qt/res/src/clock_2.svg
+++ b/src/qt/res/src/clock_2.svg
@@ -9,6 +9,5 @@
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 </g>
-<polygon points="465.2,601.6 534,420.9 297.6,420.9 297.6,657.3 "/>
-<polygon points="478.3,253.4 297.6,184.6 297.6,420.9 534,420.9 "/>
+<polygon points="465.2,601.6 534,420.9 478.3,253.4 297.6,184.6 297.6,420.9 297.6,657.3 "/>
 </svg>
diff --git a/src/qt/res/src/clock_3.svg b/src/qt/res/src/clock_3.svg
index ea47a8473..b691043e3 100644
--- a/src/qt/res/src/clock_3.svg
+++ b/src/qt/res/src/clock_3.svg
@@ -9,7 +9,7 @@
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 </g>
-<polygon points="117,588.5 297.6,657.3 297.6,420.9 61.3,420.9 "/>
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-<polygon points="478.3,253.4 297.6,184.6 297.6,420.9 534,420.9 "/>
+<path
+	d="M 465.2,601.6 534,420.9 478.3,253.4 297.6,184.6 c 0,0 0,78.8 0,118.2 0,117.7 0.4,118.1 -118.1,118.1 -39.4,0 -118.2,0 -118.2,0 l 55.7,167.6 180.6,68.8 z"
+	id="polygon7" />
 </svg>
diff --git a/src/qt/res/src/clock_4.svg b/src/qt/res/src/clock_4.svg
index 43160288d..ea311f31e 100644
--- a/src/qt/res/src/clock_4.svg
+++ b/src/qt/res/src/clock_4.svg
@@ -1,18 +1,23 @@
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-		s132.9,26.7,181.3,75.1c48.4,48.4,75.1,112.8,75.1,181.3s-26.7,132.9-75.1,181.3S366.1,677.3,297.6,677.3z M297.6,204.6
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-</svg>
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
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+\ No newline at end of file
diff --git a/src/qt/res/src/connect-0.svg b/src/qt/res/src/connect-0.svg
index bedbec777..7d2afac62 100644
--- a/src/qt/res/src/connect-0.svg
+++ b/src/qt/res/src/connect-0.svg
@@ -1,11 +1,66 @@
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new file mode 100644
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-		 M505.3,191c0,12.4,0,22.3,0,34.7c0,2.5,2.5,2.5,5,2.5c5,0,7.4,0,12.4,0c0,2.5,0,5,0,9.9c0,44.6,0,86.8,0,131.5
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-		c5,0,7.4-2.5,7.4-7.4c0-7.4,0-14.9,0-22.3c0-5-2.5-7.4-7.4-7.4c-7.4,0-14.9-2.5-22.3-2.5c-5,0-7.4-2.5-7.4-7.4
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-		C520.2,191,512.7,191,505.3,191z"/>
-	<path d="M443.3,277.8c-2.5,27.3-5,57-9.9,84.3c0,7.4-5,17.4-9.9,24.8c-12.4,17.4-32.2,14.9-44.6-2.5c-9.9-14.9-12.4-32.2-14.9-49.6
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-		c2.5,9.9,2.5,22.3,2.5,34.7C440.8,260.4,440.8,270.4,443.3,277.8L443.3,277.8z"/>
-</g>
-</svg>
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   version="1.1"
+   id="Ebene_1"
+   x="0px"
+   y="0px"
+   viewBox="0 0 609.4 609.4"
+   enable-background="new 0 0 841.9 595.3"
+   xml:space="preserve"
+   width="609.4"
+   height="609.4"><metadata
+     id="metadata13"><rdf:RDF><cc:Work
+         rdf:about=""><dc:format>image/svg+xml</dc:format><dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" /><dc:title></dc:title></cc:Work></rdf:RDF></metadata><defs
+     id="defs11" /><g
+     id="g4151"
+     transform="matrix(2.553,0,0,2.553,-2149,281.5)"><path
+       id="path26"
+       transform="matrix(0.3917,0,0,0.3917,841.8,-110.3)"
+       d="M 153.7 16.9 C 115 16.44 69.7 31.67 67.96 86.81 L 67.96 550.7 L 105 592.4 L 495.9 526.7 C 521.4 522.1 541.9 490.2 541.9 455.9 L 541.9 77.77 L 183.4 18.97 C 179.4 18.3 161.4 17 157.5 16.99 C 156.2 16.94 155 16.91 153.7 16.9 z M 273.5 124.1 C 278.1 124.1 282.7 124.3 287.3 124.9 L 287.3 125 C 320 128.8 343.7 144.2 359.3 170.9 C 374.6 197.1 382 234.6 382 284 C 382 329.2 376.4 364.7 365.4 390.7 C 354.2 417.2 337.1 434.6 313.4 442.8 C 315.9 455 319.5 463.2 324.1 467.5 C 326.9 469.8 330.7 471.4 335.3 471.9 L 335.6 471.9 L 336.3 471.9 L 341.5 471.9 C 343.5 471.9 344.5 472.4 348.3 471.9 L 348.3 507.9 L 332 510.2 C 327.2 510.7 322.6 510.9 318.2 510.9 C 303.9 510.9 292.4 507.6 283.5 500.5 C 272 491.3 263.6 473.4 258.2 447.1 C 233.2 441.8 213.5 425.9 200 399.1 C 186.5 372.1 179.3 332.2 179.3 280.4 C 179.3 224.5 189 183.2 207.7 157 C 223.8 134.9 245.7 124.1 273.5 124.1 z M 424.4 143.5 L 455.1 146.9 L 455.1 202.2 L 488.2 204.8 L 488.2 239.5 L 455.1 237.8 L 455.1 364.7 C 455.1 375.6 457.6 382.8 460.2 386.1 C 460.2 388.9 465.3 390.4 467.8 390.4 L 470.4 390.4 C 478 389.9 485.7 387.9 493.4 384.1 L 493.4 415.7 C 478 422.1 465.3 425.7 450 426.9 C 450 427.2 447.4 427.2 444.8 427.2 C 432.1 427.2 424.4 423.6 416.8 416.5 C 409.1 408.1 404 394.5 404 376.1 L 404 235.6 L 390.2 234.8 L 390.2 197.6 L 411.7 199.1 L 424.4 143.5 z M 284.5 166.4 C 272.5 166.4 263.3 173.3 256.9 187.3 C 250.1 202.5 246.7 233.9 246.7 281.7 C 246.7 327.6 250.1 360.3 256.9 379.5 C 263.3 397.8 273 406.8 285.8 406.8 L 287.3 406.8 C 300.1 406 309.5 397.1 316.2 380.5 C 322.6 363.9 325.6 331.5 325.6 283 C 325.6 239.4 322.6 209.5 316.2 193 C 309.8 176.4 300.1 167.5 287.3 166.4 L 284.5 166.4 z "
+       style="fill:#000000;fill-opacity:1;fill-rule:nonzero;stroke:none" /></g></svg>
+\ No newline at end of file
diff --git a/src/qt/res/src/transaction0.svg b/src/qt/res/src/transaction0.svg
new file mode 100644
index 000000000..e7fcd8214
--- /dev/null
+++ b/src/qt/res/src/transaction0.svg
@@ -0,0 +1,35 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   version="1.1"
+   id="svg4142"
+   viewBox="0 0 128 127.9"
+   height="36.12mm"
+   width="36.12mm">
+  <defs
+     id="defs4144" />
+  <metadata
+     id="metadata4147">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+        <dc:title></dc:title>
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <g
+     id="layer1"
+     transform="translate(-284.4,-501.6)">
+    <path
+       id="path4792"
+       d="m 348.8,513.8 c -12.7,-0.7 -24.9,9.1 -27,21.7 -3.8,8.8 7.2,13.7 13.7,9.2 3.1,-7.5 9.4,-17.9 18.9,-11.6 9.7,6.1 2.1,17.6 -3,24.1 -6.1,7.8 -11.4,14.8 -8.9,23 5.4,17.7 10.8,3.7 12.8,-0.1 4.3,-8.2 6,-8.8 11.5,-16.1 6.4,-8.6 11.6,-19.9 7.7,-30.8 -2.8,-11.5 -13.9,-19.9 -25.7,-19.4 z m -0.7,84.7 c -11.4,2.4 -9.1,19.5 2.7,17.1 11.8,-2.4 8.7,-19.5 -2.7,-17.1 z"
+       style="fill:#000000" />
+  </g>
+</svg>
diff --git a/src/qt/rpcconsole.cpp b/src/qt/rpcconsole.cpp
index 3231b392f..35729bbb8 100644
--- a/src/qt/rpcconsole.cpp
+++ b/src/qt/rpcconsole.cpp
@@ -330,10 +330,10 @@ void RPCConsole::setClientModel(ClientModel *model)
 
         // Provide initial values
         ui->clientVersion->setText(model->formatFullVersion());
+        ui->clientUserAgent->setText(model->formatSubVersion());
         ui->clientName->setText(model->clientName());
         ui->buildDate->setText(model->formatBuildDate());
         ui->startupTime->setText(model->formatClientStartupTime());
-
         ui->networkName->setText(QString::fromStdString(Params().NetworkIDString()));
     }
 }
diff --git a/src/rpcrawtransaction.cpp b/src/rpcrawtransaction.cpp
index a3246b41f..9eeca5b7d 100644
--- a/src/rpcrawtransaction.cpp
+++ b/src/rpcrawtransaction.cpp
@@ -318,8 +318,9 @@ UniValue createrawtransaction(const UniValue& params, bool fHelp)
 {
     if (fHelp || params.size() != 2)
         throw runtime_error(
-            "createrawtransaction [{\"txid\":\"id\",\"vout\":n},...] {\"address\":amount,...}\n"
-            "\nCreate a transaction spending the given inputs and sending to the given addresses.\n"
+            "createrawtransaction [{\"txid\":\"id\",\"vout\":n},...] {\"address\":amount,\"data\":\"hex\",...}\n"
+            "\nCreate a transaction spending the given inputs and creating new outputs.\n"
+            "Outputs can be addresses or data.\n"
             "Returns hex-encoded raw transaction.\n"
             "Note that the transaction's inputs are not signed, and\n"
             "it is not stored in the wallet or transmitted to the network.\n"
@@ -328,23 +329,25 @@ UniValue createrawtransaction(const UniValue& params, bool fHelp)
             "1. \"transactions\"        (string, required) A json array of json objects\n"
             "     [\n"
             "       {\n"
-            "         \"txid\":\"id\",  (string, required) The transaction id\n"
+            "         \"txid\":\"id\",    (string, required) The transaction id\n"
             "         \"vout\":n        (numeric, required) The output number\n"
             "       }\n"
             "       ,...\n"
             "     ]\n"
-            "2. \"addresses\"           (string, required) a json object with addresses as keys and amounts as values\n"
+            "2. \"outputs\"             (string, required) a json object with outputs\n"
             "    {\n"
             "      \"address\": x.xxx   (numeric, required) The key is the bitcoin address, the value is the " + CURRENCY_UNIT + " amount\n"
-            "      ,...\n"
+            "      \"data\": \"hex\",     (string, required) The key is \"data\", the value is hex encoded data\n"
+            "      ...\n"
             "    }\n"
-
             "\nResult:\n"
             "\"transaction\"            (string) hex string of the transaction\n"
 
             "\nExamples\n"
             + HelpExampleCli("createrawtransaction", "\"[{\\\"txid\\\":\\\"myid\\\",\\\"vout\\\":0}]\" \"{\\\"address\\\":0.01}\"")
+            + HelpExampleCli("createrawtransaction", "\"[{\\\"txid\\\":\\\"myid\\\",\\\"vout\\\":0}]\" \"{\\\"data\\\":\\\"00010203\\\"}\"")
             + HelpExampleRpc("createrawtransaction", "\"[{\\\"txid\\\":\\\"myid\\\",\\\"vout\\\":0}]\", \"{\\\"address\\\":0.01}\"")
+            + HelpExampleRpc("createrawtransaction", "\"[{\\\"txid\\\":\\\"myid\\\",\\\"vout\\\":0}]\", \"{\\\"data\\\":\\\"00010203\\\"}\"")
         );
 
     LOCK(cs_main);
@@ -375,19 +378,27 @@ UniValue createrawtransaction(const UniValue& params, bool fHelp)
     set<CBitcoinAddress> setAddress;
     vector<string> addrList = sendTo.getKeys();
     BOOST_FOREACH(const string& name_, addrList) {
-        CBitcoinAddress address(name_);
-        if (!address.IsValid())
-            throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, string("Invalid Bitcoin address: ")+name_);
 
-        if (setAddress.count(address))
-            throw JSONRPCError(RPC_INVALID_PARAMETER, string("Invalid parameter, duplicated address: ")+name_);
-        setAddress.insert(address);
+        if (name_ == "data") {
+            std::vector<unsigned char> data = ParseHexV(sendTo[name_].getValStr(),"Data");
+
+            CTxOut out(0, CScript() << OP_RETURN << data);
+            rawTx.vout.push_back(out);
+        } else {
+            CBitcoinAddress address(name_);
+            if (!address.IsValid())
+                throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, string("Invalid Bitcoin address: ")+name_);
 
-        CScript scriptPubKey = GetScriptForDestination(address.Get());
-        CAmount nAmount = AmountFromValue(sendTo[name_]);
+            if (setAddress.count(address))
+                throw JSONRPCError(RPC_INVALID_PARAMETER, string("Invalid parameter, duplicated address: ")+name_);
+            setAddress.insert(address);
 
-        CTxOut out(nAmount, scriptPubKey);
-        rawTx.vout.push_back(out);
+            CScript scriptPubKey = GetScriptForDestination(address.Get());
+            CAmount nAmount = AmountFromValue(sendTo[name_]);
+
+            CTxOut out(nAmount, scriptPubKey);
+            rawTx.vout.push_back(out);
+        }
     }
 
     return EncodeHexTx(rawTx);
diff --git a/src/test/alert_tests.cpp b/src/test/alert_tests.cpp
index b8d5606cc..dd3c51d09 100644
--- a/src/test/alert_tests.cpp
+++ b/src/test/alert_tests.cpp
@@ -162,8 +162,8 @@ BOOST_AUTO_TEST_CASE(AlertNotify)
     SetMockTime(11);
     const std::vector<unsigned char>& alertKey = Params(CBaseChainParams::MAIN).AlertKey();
 
-    boost::filesystem::path temp = GetTempPath() / "alertnotify.txt";
-    boost::filesystem::remove(temp);
+    boost::filesystem::path temp = GetTempPath() /
+        boost::filesystem::unique_path("alertnotify-%%%%.txt");
 
     mapArgs["-alertnotify"] = std::string("echo %s >> ") + temp.string();
 
diff --git a/src/test/data/bitcoin-util-test.json b/src/test/data/bitcoin-util-test.json
index afd35af50..3bf80ca43 100644
--- a/src/test/data/bitcoin-util-test.json
+++ b/src/test/data/bitcoin-util-test.json
@@ -56,5 +56,35 @@
      "sign=ALL",
      "outaddr=0.001:193P6LtvS4nCnkDvM9uXn1gsSRqh4aDAz7"],
     "output_cmp": "txcreatesign.hex"
+  },
+  { "exec": "./bitcoin-tx",
+    "args":
+    ["-create",
+     "in=5897de6bd6027a475eadd57019d4e6872c396d0716c4875a5f1a6fcfdf385c1f:0",
+     "outdata=4:badhexdata"],
+    "return_code": 1
+  },
+  { "exec": "./bitcoin-tx",
+    "args":
+    ["-create",
+     "in=5897de6bd6027a475eadd57019d4e6872c396d0716c4875a5f1a6fcfdf385c1f:0",
+     "outdata=badhexdata"],
+    "return_code": 1
+  },
+  { "exec": "./bitcoin-tx",
+    "args":
+    ["-create",
+     "in=5897de6bd6027a475eadd57019d4e6872c396d0716c4875a5f1a6fcfdf385c1f:0",
+     "outaddr=0.18:13tuJJDR2RgArmgfv6JScSdreahzgc4T6o",
+     "outdata=4:54686973204f505f52455455524e207472616e73616374696f6e206f7574707574207761732063726561746564206279206d6f646966696564206372656174657261777472616e73616374696f6e2e"],
+    "output_cmp": "txcreatedata1.hex"
+  },
+  { "exec": "./bitcoin-tx",
+    "args":
+    ["-create",
+     "in=5897de6bd6027a475eadd57019d4e6872c396d0716c4875a5f1a6fcfdf385c1f:0",
+     "outaddr=0.18:13tuJJDR2RgArmgfv6JScSdreahzgc4T6o",
+     "outdata=54686973204f505f52455455524e207472616e73616374696f6e206f7574707574207761732063726561746564206279206d6f646966696564206372656174657261777472616e73616374696f6e2e"],
+    "output_cmp": "txcreatedata2.hex"
   }
 ]
diff --git a/src/test/data/txcreatedata1.hex b/src/test/data/txcreatedata1.hex
new file mode 100644
index 000000000..eccc7604e
--- /dev/null
+++ b/src/test/data/txcreatedata1.hex
@@ -0,0 +1 @@
+01000000011f5c38dfcf6f1a5f5a87c416076d392c87e6d41970d5ad5e477a02d66bde97580000000000ffffffff0280a81201000000001976a9141fc11f39be1729bf973a7ab6a615ca4729d6457488ac0084d71700000000526a4c4f54686973204f505f52455455524e207472616e73616374696f6e206f7574707574207761732063726561746564206279206d6f646966696564206372656174657261777472616e73616374696f6e2e00000000
diff --git a/src/test/data/txcreatedata2.hex b/src/test/data/txcreatedata2.hex
new file mode 100644
index 000000000..3c7644c29
--- /dev/null
+++ b/src/test/data/txcreatedata2.hex
@@ -0,0 +1 @@
+01000000011f5c38dfcf6f1a5f5a87c416076d392c87e6d41970d5ad5e477a02d66bde97580000000000ffffffff0280a81201000000001976a9141fc11f39be1729bf973a7ab6a615ca4729d6457488ac0000000000000000526a4c4f54686973204f505f52455455524e207472616e73616374696f6e206f7574707574207761732063726561746564206279206d6f646966696564206372656174657261777472616e73616374696f6e2e00000000
diff --git a/src/test/rpc_tests.cpp b/src/test/rpc_tests.cpp
index 7946b0285..a65572e6f 100644
--- a/src/test/rpc_tests.cpp
+++ b/src/test/rpc_tests.cpp
@@ -110,6 +110,24 @@ BOOST_AUTO_TEST_CASE(rpc_rawsign)
     BOOST_CHECK(find_value(r.get_obj(), "complete").get_bool() == true);
 }
 
+BOOST_AUTO_TEST_CASE(rpc_createraw_op_return)
+{
+    BOOST_CHECK_NO_THROW(CallRPC("createrawtransaction [{\"txid\":\"a3b807410df0b60fcb9736768df5823938b2f838694939ba45f3c0a1bff150ed\",\"vout\":0}] {\"data\":\"68656c6c6f776f726c64\"}"));
+
+    // Allow more than one data transaction output
+    BOOST_CHECK_NO_THROW(CallRPC("createrawtransaction [{\"txid\":\"a3b807410df0b60fcb9736768df5823938b2f838694939ba45f3c0a1bff150ed\",\"vout\":0}] {\"data\":\"68656c6c6f776f726c64\",\"data\":\"68656c6c6f776f726c64\"}"));
+
+    // Key not "data" (bad address)
+    BOOST_CHECK_THROW(CallRPC("createrawtransaction [{\"txid\":\"a3b807410df0b60fcb9736768df5823938b2f838694939ba45f3c0a1bff150ed\",\"vout\":0}] {\"somedata\":\"68656c6c6f776f726c64\"}"), runtime_error);
+
+    // Bad hex encoding of data output
+    BOOST_CHECK_THROW(CallRPC("createrawtransaction [{\"txid\":\"a3b807410df0b60fcb9736768df5823938b2f838694939ba45f3c0a1bff150ed\",\"vout\":0}] {\"data\":\"12345\"}"), runtime_error);
+    BOOST_CHECK_THROW(CallRPC("createrawtransaction [{\"txid\":\"a3b807410df0b60fcb9736768df5823938b2f838694939ba45f3c0a1bff150ed\",\"vout\":0}] {\"data\":\"12345g\"}"), runtime_error);
+
+    // Data 81 bytes long
+    BOOST_CHECK_NO_THROW(CallRPC("createrawtransaction [{\"txid\":\"a3b807410df0b60fcb9736768df5823938b2f838694939ba45f3c0a1bff150ed\",\"vout\":0}] {\"data\":\"010203040506070809101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081\"}"));
+}
+
 BOOST_AUTO_TEST_CASE(rpc_format_monetary_values)
 {
     BOOST_CHECK(ValueFromAmount(0LL).write() == "0.00000000");
diff --git a/src/test/rpc_wallet_tests.cpp b/src/test/rpc_wallet_tests.cpp
index 9368963ff..52f41be8a 100644
--- a/src/test/rpc_wallet_tests.cpp
+++ b/src/test/rpc_wallet_tests.cpp
@@ -27,8 +27,6 @@ BOOST_FIXTURE_TEST_SUITE(rpc_wallet_tests, TestingSetup)
 
 BOOST_AUTO_TEST_CASE(rpc_addmultisig)
 {
-    LOCK(pwalletMain->cs_wallet);
-
     rpcfn_type addmultisig = tableRPC["addmultisigaddress"]->actor;
 
     // old, 65-byte-long:
@@ -68,25 +66,28 @@ BOOST_AUTO_TEST_CASE(rpc_wallet)
 {
     // Test RPC calls for various wallet statistics
     UniValue r;
-
-    LOCK2(cs_main, pwalletMain->cs_wallet);
-
-    CPubKey demoPubkey = pwalletMain->GenerateNewKey();
-    CBitcoinAddress demoAddress = CBitcoinAddress(CTxDestination(demoPubkey.GetID()));
+    CPubKey demoPubkey;
+    CBitcoinAddress demoAddress;
     UniValue retValue;
     string strAccount = "walletDemoAccount";
-    string strPurpose = "receive";
-    BOOST_CHECK_NO_THROW({ /*Initialize Wallet with an account */
-        CWalletDB walletdb(pwalletMain->strWalletFile);
-        CAccount account;
-        account.vchPubKey = demoPubkey;
-        pwalletMain->SetAddressBook(account.vchPubKey.GetID(), strAccount, strPurpose);
-        walletdb.WriteAccount(strAccount, account);
-    });
-
-    CPubKey setaccountDemoPubkey = pwalletMain->GenerateNewKey();
-    CBitcoinAddress setaccountDemoAddress = CBitcoinAddress(CTxDestination(setaccountDemoPubkey.GetID()));
-
+    CBitcoinAddress setaccountDemoAddress;
+    {
+        LOCK(pwalletMain->cs_wallet);
+
+        demoPubkey = pwalletMain->GenerateNewKey();
+        demoAddress = CBitcoinAddress(CTxDestination(demoPubkey.GetID()));
+        string strPurpose = "receive";
+        BOOST_CHECK_NO_THROW({ /*Initialize Wallet with an account */
+            CWalletDB walletdb(pwalletMain->strWalletFile);
+            CAccount account;
+            account.vchPubKey = demoPubkey;
+            pwalletMain->SetAddressBook(account.vchPubKey.GetID(), strAccount, strPurpose);
+            walletdb.WriteAccount(strAccount, account);
+        });
+
+        CPubKey setaccountDemoPubkey = pwalletMain->GenerateNewKey();
+        setaccountDemoAddress = CBitcoinAddress(CTxDestination(setaccountDemoPubkey.GetID()));
+    }
     /*********************************
      * 			setaccount
      *********************************/