diff --git a/CHANGELOG.md b/CHANGELOG.md
index f3d80ef760..51f7f2f5c2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,10 @@
 # Changelog
 
+## v13.2.3 (2024-05-18)
+- Create V2 transactions by default
+- Disconnect from peers older than version 70015
+- Increased `DEFAULT_MIN_RELAY_TX_FEE` to 100000
+
 ## v13.2.2 (2024-01-24)
 - Set mainnet hard fork date to April 24, 2024
 - Adjusted minimum fee calculations
diff --git a/README.md b/README.md
index 400f1e06b9..fbb15af4a3 100644
--- a/README.md
+++ b/README.md
@@ -6,7 +6,7 @@ https://blackcoinmore.org
 What is Blackcoin?
 ----------------
 
-Blackcoin is a decentralised digital currency with near-instant transaction speeds and negligible transaction fees built upon Proof of Stake 3.0 (PoSV3, BPoS) as
+Blackcoin is a decentralised digital currency with near-instant transaction speeds and negligible transaction fees built upon Proof of Stake 3.1 (PoSV3, BPoS) as
 introduced by the Blackcoin development team.
 
 For more information about Blackcoin itself, see https://blackcoin.org.
@@ -79,8 +79,5 @@ However, it may contain experimental features and should be used with caution.
 ### 13.2
 The release branch for Blackcoin More 13.2.x. It is intended to contain stable and functional code that has been thoroughly tested and reviewed.
 
-### 25.x
-The release branch for Blackcoin More 25.x. Contains functional but experimental code.
-
 ### 26.x
 The release branch for Blackcoin More 26.x. Contains functional but highly experimental code.
diff --git a/configure.ac b/configure.ac
index a40c4a6870..3c54fcbbf5 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,7 +1,7 @@
 AC_PREREQ([2.69])
 define(_CLIENT_VERSION_MAJOR, 13)
 define(_CLIENT_VERSION_MINOR, 2)
-define(_CLIENT_VERSION_BUILD, 2)
+define(_CLIENT_VERSION_BUILD, 3)
 define(_CLIENT_VERSION_IS_RELEASE, true)
 define(_COPYRIGHT_YEAR, 2024)
 define(_COPYRIGHT_HOLDERS,[The %s developers])
diff --git a/contrib/seeds/nodes_main.txt b/contrib/seeds/nodes_main.txt
index ad46cd07a4..234ea6320a 100644
--- a/contrib/seeds/nodes_main.txt
+++ b/contrib/seeds/nodes_main.txt
@@ -36,6 +36,10 @@
 [2a02:c207:2110:9259::1]
 [2a10:3781:525:1::210]
 [2a10:3781:525:1::201]
+[2a10:3781:525:1::211]
+[2a10:3781:525:1::212]
+[2a10:3781:525:1::213]
+[2a10:3781:525:1::215]
 [2a10:3781:525:6::10]
 [2a10:3781:525:6::11]
 [2602:fec3:2:10::9:91]
diff --git a/contrib/seeds/nodes_test.txt b/contrib/seeds/nodes_test.txt
index 8772f2a792..849dd7bb12 100644
--- a/contrib/seeds/nodes_test.txt
+++ b/contrib/seeds/nodes_test.txt
@@ -5,7 +5,6 @@
 167.86.117.144
 167.86.117.143
 45.137.91.173
-45.137.91.173
 5.189.160.139
 81.0.246.79
 5.189.159.220
@@ -27,8 +26,12 @@
 [2a02:c207:2110:9257::1]
 [2a02:c204:2110:9258::1]
 [2a02:c207:2110:9259::1]
-[2a10:3781:525:1::210]
 [2a10:3781:525:1::201]
+[2a10:3781:525:1::210]
+[2a10:3781:525:1::211]
+[2a10:3781:525:1::212]
+[2a10:3781:525:1::213]
+[2a10:3781:525:1::215]
 [2a10:3781:525:6::10]
 [2a10:3781:525:6::11]
 
diff --git a/src/chainparams.cpp b/src/chainparams.cpp
index 30df2166f6..a65dae2fcc 100644
--- a/src/chainparams.cpp
+++ b/src/chainparams.cpp
@@ -117,7 +117,7 @@ class CMainParams : public CChainParams {
         consensus.nCoinbaseMaturity = 500;
 
         // The best chain should have at least this much work.
-        consensus.nMinimumChainWork = uint256S("0x000000000000000000000000000000000000000000000416ebe78f593ec11fb2"); // block 4791500
+        consensus.nMinimumChainWork = uint256S("0x00000000000000000000000000000000000000000000042bc25fcf69bab7b312"); // block 4938940
 
         /**
          * The message start string is designed to be unlikely to occur in normal data.
@@ -164,9 +164,10 @@ class CMainParams : public CChainParams {
                     (254348, uint256S("0x9bf8d9bd757d3ef23d5906d70567e5f0da93f1e0376588c8d421a95e2421838b"))  // minor network split
                     (319002, uint256S("0x0011494d03b2cdf1ecfc8b0818f1e0ef7ee1d9e9b3d1279c10d35456bc3899ef"))  // hardfork
                     (872456, uint256S("0xe4fd321ced1de06213d2e246b150b4bfd8c4aa0989965dce88f2a58668c64860"))  // hardfork
-                    (4232630, uint256S("0xae0c2a9bd13746e2887ca57bf1046b3c787a5ed1068fd1633a3575f08ee291fc")), // start devfund
-                    1668631296, // * UNIX timestamp of last checkpoint block
-                    13562393,    // * total number of transactions between genesis and last checkpoint
+                    (4232630, uint256S("0xae0c2a9bd13746e2887ca57bf1046b3c787a5ed1068fd1633a3575f08ee291fc")) // start devfund
+                    (4908715, uint256S("0x6f8e37e21aa2fba3f8e2d6825cb825ca290e9367ed08b8c30943bc16efcba119")), // PoS v3.1 hardfork
+                    1713938480, // * UNIX timestamp of last checkpoint block
+                    15170003,    // * total number of transactions between genesis and last checkpoint
                                 //   (the tx=... number in the SetBestChain debug.log lines)
                     3500.0      // * estimated number of transactions per day after checkpoint
         };
@@ -220,7 +221,7 @@ class CTestNetParams : public CChainParams {
         nDefaultPort = 25714;
 
         // The best chain should have at least this much work.
-        consensus.nMinimumChainWork = uint256S("0x0000000000000000000000000000000000000000000000478d1e3e759bd0f7e2"); // block 1720482  
+        consensus.nMinimumChainWork = uint256S("0x00000000000000000000000000000000000000000000004ef99ad4b35ad0930a"); // block 1866885  
 
         nPruneAfterHeight = 1000;
 
@@ -249,10 +250,11 @@ class CTestNetParams : public CChainParams {
         checkpointData = (CCheckpointData) {
             boost::assign::map_list_of
             (  90235, uint256S("0x567898e79184dc2f7dc3a661f794f28566e4b856d70180914f7371b1b3cc82d8"))  //initial snapshot
+            (1320664, uint256S("0x64fa6a5414c6797629d34ef150c46486a5e1d49d2bceb87d6da14a501f838afd"))  //PoS v3.1 hardfork 
             (1415393, uint256S("0x5d5c42500cc6057533e249ba9eeb9b5e998aff30468c904bc267ec9bccbc8b39")), //start devfund
             1685643568,
-            70100,
-            2.0
+            280130,
+            3500.0
         };
 
         // A vector of p2sh addresses
diff --git a/src/chainparamsseeds.h b/src/chainparamsseeds.h
index 48f0bba5e6..9c7e5d561a 100644
--- a/src/chainparamsseeds.h
+++ b/src/chainparamsseeds.h
@@ -40,6 +40,10 @@ static SeedSpec6 pnSeed6_main[] = {
     {{0x2a,0x02,0xc2,0x07,0x21,0x10,0x92,0x59,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01}, 15714},
     {{0x2a,0x10,0x37,0x81,0x05,0x25,0x00,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x02,0x10}, 15714},
     {{0x2a,0x10,0x37,0x81,0x05,0x25,0x00,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x02,0x01}, 15714},
+    {{0x2a,0x10,0x37,0x81,0x05,0x25,0x00,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x02,0x11}, 15714},
+    {{0x2a,0x10,0x37,0x81,0x05,0x25,0x00,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x02,0x12}, 15714},
+    {{0x2a,0x10,0x37,0x81,0x05,0x25,0x00,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x02,0x13}, 15714},
+    {{0x2a,0x10,0x37,0x81,0x05,0x25,0x00,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x02,0x15}, 15714},
     {{0x2a,0x10,0x37,0x81,0x05,0x25,0x00,0x06,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x10}, 15714},
     {{0x2a,0x10,0x37,0x81,0x05,0x25,0x00,0x06,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x11}, 15714},
     {{0x26,0x02,0xfe,0xc3,0x00,0x02,0x00,0x10,0x00,0x00,0x00,0x00,0x00,0x09,0x00,0x91}, 15714},
@@ -56,7 +60,6 @@ static SeedSpec6 pnSeed6_test[] = {
     {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xa7,0x56,0x75,0x90}, 25714},
     {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xa7,0x56,0x75,0x8f}, 25714},
     {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x2d,0x89,0x5b,0xad}, 25714},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x2d,0x89,0x5b,0xad}, 25714},
     {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x05,0xbd,0xa0,0x8b}, 25714},
     {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x51,0x00,0xf6,0x4f}, 25714},
     {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x05,0xbd,0x9f,0xdc}, 25714},
@@ -76,7 +79,12 @@ static SeedSpec6 pnSeed6_test[] = {
     {{0x2a,0x02,0xc2,0x07,0x21,0x10,0x92,0x57,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01}, 25714},
     {{0x2a,0x02,0xc2,0x04,0x21,0x10,0x92,0x58,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01}, 25714},
     {{0x2a,0x02,0xc2,0x07,0x21,0x10,0x92,0x59,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01}, 25714},
+    {{0x2a,0x10,0x37,0x81,0x05,0x25,0x00,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x02,0x01}, 25714},
     {{0x2a,0x10,0x37,0x81,0x05,0x25,0x00,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x02,0x10}, 25714},
+    {{0x2a,0x10,0x37,0x81,0x05,0x25,0x00,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x02,0x11}, 25714},
+    {{0x2a,0x10,0x37,0x81,0x05,0x25,0x00,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x02,0x12}, 25714},
+    {{0x2a,0x10,0x37,0x81,0x05,0x25,0x00,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x02,0x13}, 25714},
+    {{0x2a,0x10,0x37,0x81,0x05,0x25,0x00,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x02,0x15}, 25714},
     {{0x2a,0x10,0x37,0x81,0x05,0x25,0x00,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x02,0x01}, 25714},
     {{0x2a,0x10,0x37,0x81,0x05,0x25,0x00,0x06,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x10}, 25714},
     {{0x2a,0x10,0x37,0x81,0x05,0x25,0x00,0x06,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x11}, 25714},
diff --git a/src/clientversion.h b/src/clientversion.h
index 3f9e1af37e..8f531e439f 100644
--- a/src/clientversion.h
+++ b/src/clientversion.h
@@ -16,7 +16,7 @@
 //! These need to be macros, as clientversion.cpp's and bitcoin*-res.rc's voodoo requires it
 #define CLIENT_VERSION_MAJOR 13
 #define CLIENT_VERSION_MINOR 2
-#define CLIENT_VERSION_BUILD 2
+#define CLIENT_VERSION_BUILD 3
 
 //! Set to true for release, false for prerelease or test build
 #define CLIENT_VERSION_IS_RELEASE true
diff --git a/src/main.cpp b/src/main.cpp
index 033ecece56..198f0bff8d 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -1226,9 +1226,9 @@ bool AcceptToMemoryPoolWorker(CTxMemPool& pool, CValidationState& state, const C
             return state.DoS(0, false, REJECT_INVALID, "too many dust vouts");
     }
 
-    // Blackcoin: in v2 transactions use GetAdjustedTime() as TxTime
+    // Blackcoin: in v2 transactions use GetAdjustedTime() as nTimeTx
     int64_t nTimeTx = (int64_t)tx.nTime;
-    if (!nTimeTx && tx.nVersion >= CTransaction::MAX_STANDARD_VERSION)
+    if (!nTimeTx && tx.nVersion >= 2)
         nTimeTx = GetAdjustedTime();
 
     if (!CheckTransaction(tx, state))
@@ -1242,14 +1242,6 @@ bool AcceptToMemoryPoolWorker(CTxMemPool& pool, CValidationState& state, const C
     if (tx.IsCoinStake())
         return state.DoS(100, false, REJECT_INVALID, "coinstake");
 
-    // Don't relay version 2 transactions until CSV is active, and we can be
-    // sure that such transactions will be mined (unless we're on
-    // -testnet/-regtest).
-    const CChainParams& chainparams = Params();
-    if (fRequireStandard && tx.nVersion >= CTransaction::MAX_STANDARD_VERSION && !chainparams.GetConsensus().IsProtocolV3_1(nTimeTx)) {
-        return state.DoS(0, false, REJECT_NONSTANDARD, "premature-version2-tx");
-    }
-
     // Rather not work on nonstandard transactions (unless -testnet/-regtest)
     string reason;
     if (fRequireStandard && !IsStandardTx(tx, reason))
@@ -1348,7 +1340,7 @@ bool AcceptToMemoryPoolWorker(CTxMemPool& pool, CValidationState& state, const C
         CAmount nFees = nValueIn-nValueOut;
 
         // Blackcoin: Minimum fee check
-        if (chainparams.GetConsensus().IsProtocolV3_1(nTimeTx) && nFees < GetMinFee(tx, nTimeTx))
+        if (Params().GetConsensus().IsProtocolV3_1(nTimeTx) && nFees < GetMinFee(tx, nTimeTx))
             return state.Invalid(false, REJECT_INSUFFICIENTFEE, "fee is below minimum");
 
         // nModifiedFees includes any fee deltas from PrioritiseTransaction
@@ -2007,9 +1999,9 @@ bool CheckTxInputs(const CTransaction& tx, CValidationState& state, const CCoins
     if (!inputs.HaveInputs(tx))
         return state.Invalid(false, 0, "", "Inputs unavailable");
 
-    // Blackcoin: in v2 transactions use GetAdjustedTime() as TxTime
+    // Blackcoin: in v2 transactions use GetAdjustedTime() as nTimeTx
     int64_t nTimeTx = tx.nTime;
-    if (!nTimeTx && tx.nVersion >= CTransaction::MAX_STANDARD_VERSION)
+    if (!nTimeTx && tx.nVersion >= 2)
         nTimeTx = GetAdjustedTime();
 
     CAmount nValueIn = 0;
@@ -5179,7 +5171,7 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv,
             return false;
         }
 
-        if (pfrom->nVersion < (chainparams.GetConsensus().IsProtocolV3_1(GetAdjustedTime()) ? PROTOCOL_VERSION : MIN_PEER_PROTO_VERSION))
+        if (pfrom->nVersion < MIN_PEER_PROTO_VERSION)
         {
             // disconnect from peers older than this proto version
             LogPrintf("peer=%d using obsolete version %i; disconnecting\n", pfrom->id, pfrom->nVersion);
diff --git a/src/main.h b/src/main.h
index 9648d9d733..46e93e1a75 100644
--- a/src/main.h
+++ b/src/main.h
@@ -56,7 +56,7 @@ static const unsigned int MIN_TX_FEE = 10000;
 /** Minimum fee per kB */
 static const unsigned int TX_FEE_PER_KB = 100000;
 /** Default for -minrelaytxfee, minimum relay fee for transactions */
-static const unsigned int DEFAULT_MIN_RELAY_TX_FEE = 10000;
+static const unsigned int DEFAULT_MIN_RELAY_TX_FEE = 100000;
 //! -maxtxfee default
 static const CAmount DEFAULT_TRANSACTION_MAXFEE = 1 * COIN;
 //! Discourage users to set fees higher than this amount (in satoshis) per kB
diff --git a/src/miner.cpp b/src/miner.cpp
index 86d7518f9a..d8f5e842a9 100644
--- a/src/miner.cpp
+++ b/src/miner.cpp
@@ -137,11 +137,7 @@ CBlockTemplate* BlockAssembler::CreateNewBlock(const CScript& scriptPubKeyIn, in
         pblock->nVersion = GetArg("-blockversion", pblock->nVersion);
 
     pblock->nTime = GetAdjustedTime();
-    const int64_t nMedianTimePast = pindexPrev->GetPastTimeLimit();
-
-    nLockTimeCutoff = (STANDARD_LOCKTIME_VERIFY_FLAGS & LOCKTIME_MEDIAN_TIME_PAST)
-                       ? nMedianTimePast
-                       : pblock->GetBlockTime();
+    nLockTimeCutoff = pindexPrev->GetPastTimeLimit();
 
     addPriorityTxs(pblock->GetBlockTime(), fProofOfStake);
     addPackageTxs();
diff --git a/src/policy/policy.cpp b/src/policy/policy.cpp
index a76326aa59..3c25c2024b 100644
--- a/src/policy/policy.cpp
+++ b/src/policy/policy.cpp
@@ -64,7 +64,7 @@ int64_t FutureDrift(int64_t nTime)
 
 bool IsStandardTx(const CTransaction& tx, std::string& reason)
 {
-    if ((!Params().GetConsensus().IsProtocolV3_1(tx.nTime ? tx.nTime : GetAdjustedTime()) && (tx.nVersion > CTransaction::MAX_STANDARD_VERSION-1)) || tx.nVersion > CTransaction::MAX_STANDARD_VERSION || tx.nVersion < 1) {
+    if (tx.nVersion > CTransaction::MAX_STANDARD_VERSION || tx.nVersion < 1) {
         reason = "version";
         return false;
     }
diff --git a/src/primitives/transaction.h b/src/primitives/transaction.h
index b8df154530..c890f7c0b4 100644
--- a/src/primitives/transaction.h
+++ b/src/primitives/transaction.h
@@ -248,7 +248,7 @@ class CTransaction
 
 public:
     // Default transaction version.
-    static const int32_t CURRENT_VERSION=1;
+    static const int32_t CURRENT_VERSION=2;
 
     // Changing the default transaction version requires a two step process: first
     // adapting relay policy by bumping MAX_STANDARD_VERSION, and then later date
diff --git a/src/version.h b/src/version.h
index 102450a5a3..ec9df0a8d7 100644
--- a/src/version.h
+++ b/src/version.h
@@ -22,7 +22,7 @@ static const int CANONICAL_BLOCK_SIG_VERSION = 60016;
 static const int CANONICAL_BLOCK_SIG_LOW_S_VERSION = 60018;
 
 //! disconnect from peers older than this proto version
-static const int MIN_PEER_PROTO_VERSION = 70012;
+static const int MIN_PEER_PROTO_VERSION = 70015;
 
 //! nTime field added to CAddress, starting with this version;
 //! if possible, avoid requesting addresses nodes older than this
diff --git a/src/wallet/wallet.cpp b/src/wallet/wallet.cpp
index f70ca0ebee..21e8c42495 100644
--- a/src/wallet/wallet.cpp
+++ b/src/wallet/wallet.cpp
@@ -2621,7 +2621,7 @@ bool CWallet::CreateTransaction(const vector<CRecipient>& vecSend, CWalletTx& wt
             std::vector<COutput> vAvailableCoins;
             AvailableCoins(vAvailableCoins, true, coinControl);
 
-            nFeeRet = Params().GetConsensus().IsProtocolV3_1(txNew.nTime) ? MIN_TX_FEE : 0;
+            nFeeRet = MIN_TX_FEE;
             // Start with no fee and loop until there is enough fee
             while (true)
             {
@@ -3711,7 +3711,7 @@ std::string CWallet::GetWalletHelpString(bool showDebug)
     strUsage += HelpMessageOpt("-salvagewallet", _("Attempt to recover private keys from a corrupt wallet on startup"));
     strUsage += HelpMessageOpt("-spendzeroconfchange", strprintf(_("Spend unconfirmed change when sending transactions (default: %u)"), DEFAULT_SPEND_ZEROCONF_CHANGE));
     strUsage += HelpMessageOpt("-txconfirmtarget=<n>", strprintf(_("If paytxfee is not set, include enough fee so transactions begin confirmation on average within n blocks (default: %u)"), DEFAULT_TX_CONFIRM_TARGET));
-    strUsage += HelpMessageOpt("-txversion=<n>", _("Set default transaction version")  + " " + _("(default: 1)"));
+    strUsage += HelpMessageOpt("-txversion=<n>", _("Set default transaction version")  + " " + _("(default: 2)"));
     strUsage += HelpMessageOpt("-usehd", _("Use hierarchical deterministic key generation (HD) after BIP32. Only has effect during wallet creation/first start") + " " + strprintf(_("(default: %u)"), DEFAULT_USE_HD_WALLET));
     strUsage += HelpMessageOpt("-upgradewallet", _("Upgrade wallet to latest format on startup"));
     strUsage += HelpMessageOpt("-wallet=<file>", _("Specify wallet file (within data directory)") + " " + strprintf(_("(default: %s)"), DEFAULT_WALLET_DAT));