Bump version to 0.4.4.6

Changes list:

* Add checkpoints;
* Remove stake weight switch code;
* Remove output limit for testnet since publishing / for mainnet since 1 May 2014;
* Remove mandatory fee for testnet since publishing / for mainnet since 1 may 2014.

diff --git a/src/checkpoints.cpp b/src/checkpoints.cpp
index aeb1d92..f9c3c2e 100644 (file)
--- a/src/checkpoints.cpp
+++ b/src/checkpoints.cpp
@@ -44,6 +44,7 @@ namespace Checkpoints
         ( 13560, initCheckpoint(uint256("0xa1591a0fcbf11f282d671581edb9f0aadcd06fee69761081e0a3245914c13729"), 1364674052) )
         ( 37092, initCheckpoint(uint256("0x0000000000a38c2f98556f46793b453e92d8fab2d31c0b93fd08bcf78e56099d"), 1376677203) )
         ( 44200, initCheckpoint(uint256("0xc9bda7232a18b9c1f5ff974a9e5566b2d1879ceb8fc0e9e61fba9038a25b8447"), 1380145962) )
+        ( 65000, initCheckpoint(uint256("0xfb2b51a2fd65062c98a7a6053cde46aeaefebb95ba2f680e85a29ee25b1dcf05"), 1388526385) )
     ;
 
     // TestNet has no checkpoints

diff --git a/src/clientversion.h b/src/clientversion.h
index 79da7b1..4a8f13f 100644 (file)
--- a/src/clientversion.h
+++ b/src/clientversion.h
@@ -9,7 +9,7 @@
 #define CLIENT_VERSION_MAJOR       0
 #define CLIENT_VERSION_MINOR       7
 #define CLIENT_VERSION_REVISION    5
-#define CLIENT_VERSION_BUILD       3
+#define CLIENT_VERSION_BUILD       5
 
 // Converts the parameter X to a string after macro replacement on X has been performed.
 // Don't merge these into one macro!

diff --git a/src/kernel.cpp b/src/kernel.cpp
index 4b03c7f..959bd10 100644 (file)
--- a/src/kernel.cpp
+++ b/src/kernel.cpp
@@ -22,6 +22,7 @@ static std::map<int, unsigned int> mapStakeModifierCheckpoints =
         ( 12661, 0x5d84115du )
         ( 37092, 0xd230afccu )
         ( 44200, 0x05370164u )
+        ( 65000, 0xc8e7be6au )
     ;
 
 // Hard checkpoints of stake modifiers to ensure they are deterministic (testNet)
@@ -63,11 +64,8 @@ static int64 GetStakeModifierSelectionInterval()
 // select a block from the candidate blocks in vSortedByTimestamp, excluding
 // already selected blocks in vSelectedBlocks, and with timestamp up to
 // nSelectionIntervalStop.
-static bool SelectBlockFromCandidates(
-    vector<pair<int64, uint256> >& vSortedByTimestamp,
-    map<uint256, const CBlockIndex*>& mapSelectedBlocks,
-    int64 nSelectionIntervalStop, uint64 nStakeModifierPrev,
-    const CBlockIndex** pindexSelected)
+static bool SelectBlockFromCandidates(vector<pair<int64, uint256> >& vSortedByTimestamp, map<uint256, const CBlockIndex*>& mapSelectedBlocks,
+    int64 nSelectionIntervalStop, uint64 nStakeModifierPrev, const CBlockIndex** pindexSelected)
 {
     bool fSelected = false;
     uint256 hashBest = 0;
@@ -174,8 +172,7 @@ bool ComputeNextStakeModifier(const CBlockIndex* pindexPrev, uint64& nStakeModif
         // add the selected block from candidates to selected list
         mapSelectedBlocks.insert(make_pair(pindex->GetBlockHash(), pindex));
         if (fDebug && GetBoolArg("-printstakemodifier"))
-            printf("ComputeNextStakeModifier: selected round %d stop=%s height=%d bit=%d\n",
-                nRound, DateTimeStrFormat(nSelectionIntervalStop).c_str(), pindex->nHeight, pindex->GetStakeEntropyBit());
+            printf("ComputeNextStakeModifier: selected round %d stop=%s height=%d bit=%d\n", nRound, DateTimeStrFormat(nSelectionIntervalStop).c_str(), pindex->nHeight, pindex->GetStakeEntropyBit());
     }
 
     // Print selection map for visualization of the selected blocks
@@ -251,10 +248,8 @@ static bool GetKernelStakeModifier(uint256 hashBlockFrom, uint64& nStakeModifier
 // this ensures that the chance of getting a coinstake is proportional to the
 // amount of coin age one owns.
 // The reason this hash is chosen is the following:
-//   nStakeModifier: 
-//       (v0.3) scrambles computation to make it very difficult to precompute
-//              future proof-of-stake at the time of the coin's confirmation
-//       (v0.2) nBits (deprecated): encodes all past block timestamps
+//   nStakeModifier: scrambles computation to make it very difficult to precompute
+//                  future proof-of-stake at the time of the coin's confirmation
 //   txPrev.block.nTime: prevent nodes from guessing a good timestamp to
 //                       generate transaction for future advantage
 //   txPrev.offset: offset of txPrev inside block, to reduce the chance of 
@@ -287,16 +282,8 @@ bool CheckStakeKernelHash(unsigned int nBits, const CBlock& blockFrom, unsigned
     // this change increases active coins participating the hash and helps
     // to secure the network when proof-of-stake difficulty is low
     //
-    if(fTestNet || (STAKEWEIGHT_SWITCH_TIME < nTimeTx))
-    {
-        // New rule since 01 Jan 2014: Maximum TimeWeight is 90 days.
-        nTimeWeight = min((int64)nTimeTx - txPrev.nTime - nStakeMinAge, (int64)nStakeMaxAge);
-    }
-    else
-    {
-        // Current rule: Maximum TimeWeight is 60 days.
-        nTimeWeight = min((int64)nTimeTx - txPrev.nTime, (int64)nStakeMaxAge) - nStakeMinAge;
-    }
+    // Maximum TimeWeight is 90 days.
+    nTimeWeight = min((int64)nTimeTx - txPrev.nTime - nStakeMinAge, (int64)nStakeMaxAge);
 
     CBigNum bnCoinDayWeight = CBigNum(nValueIn) * nTimeWeight / COIN / (24 * 60 * 60);
     targetProofOfStake = (bnCoinDayWeight * bnTargetPerCoinDay).getuint256();
@@ -320,8 +307,7 @@ bool CheckStakeKernelHash(unsigned int nBits, const CBlock& blockFrom, unsigned
             DateTimeStrFormat(nStakeModifierTime).c_str(),
             mapBlockIndex[hashBlockFrom]->nHeight,
             DateTimeStrFormat(blockFrom.GetBlockTime()).c_str());
-        printf("CheckStakeKernelHash() : check protocol=%s modifier=0x%016"PRI64x" nTimeBlockFrom=%u nTxPrevOffset=%u nTimeTxPrev=%u nPrevout=%u nTimeTx=%u hashProof=%s\n",
-            "0.3",
+        printf("CheckStakeKernelHash() : check modifier=0x%016"PRI64x" nTimeBlockFrom=%u nTxPrevOffset=%u nTimeTxPrev=%u nPrevout=%u nTimeTx=%u hashProof=%s\n",
             nStakeModifier,
             nTimeBlockFrom, nTxPrevOffset, txPrev.nTime, prevout.n, nTimeTx,
             hashProofOfStake.ToString().c_str());
@@ -337,8 +323,7 @@ bool CheckStakeKernelHash(unsigned int nBits, const CBlock& blockFrom, unsigned
             DateTimeStrFormat(nStakeModifierTime).c_str(),
             mapBlockIndex[hashBlockFrom]->nHeight,
             DateTimeStrFormat(blockFrom.GetBlockTime()).c_str());
-        printf("CheckStakeKernelHash() : pass protocol=%s modifier=0x%016"PRI64x" nTimeBlockFrom=%u nTxPrevOffset=%u nTimeTxPrev=%u nPrevout=%u nTimeTx=%u hashProof=%s\n",
-            "0.3",
+        printf("CheckStakeKernelHash() : pass modifier=0x%016"PRI64x" nTimeBlockFrom=%u nTxPrevOffset=%u nTimeTxPrev=%u nPrevout=%u nTimeTx=%u hashProof=%s\n",
             nStakeModifier,
             nTimeBlockFrom, nTxPrevOffset, txPrev.nTime, prevout.n, nTimeTx,
             hashProofOfStake.ToString().c_str());

diff --git a/src/main.cpp b/src/main.cpp
index 7e62654..b0eddf0 100644 (file)
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -476,8 +476,8 @@ bool CTransaction::CheckTransaction() const
         if (txout.IsEmpty() && !IsCoinBase() && !IsCoinStake())
             return DoS(100, error("CTransaction::CheckTransaction() : txout empty for user transaction"));
 
-        // NovaCoin: enforce minimum output amount for user transactions
-        if (!IsCoinBase() && !txout.IsEmpty() && txout.nValue < MIN_TXOUT_AMOUNT)
+        // NovaCoin: enforce minimum output amount for user transactions until 1 May 2014 04:00:00 GMT
+        if (!fTestNet && !IsCoinBase() && !txout.IsEmpty() && nTime < OUTPUT_SWITCH_TIME && txout.nValue < MIN_TXOUT_AMOUNT)
             return DoS(100, error("CTransaction::CheckTransaction() : txout.nValue below minimum"));
 
         if (txout.nValue > MAX_MONEY)
@@ -1399,9 +1399,8 @@ unsigned int CTransaction::GetP2SHSigOpCount(const MapPrevTx& inputs) const
     return nSigOps;
 }
 
-bool CTransaction::ConnectInputs(CTxDB& txdb, MapPrevTx inputs,
-                                 map<uint256, CTxIndex>& mapTestPool, const CDiskTxPos& posThisTx,
-                                 const CBlockIndex* pindexBlock, bool fBlock, bool fMiner, bool fStrictPayToScriptHash)
+bool CTransaction::ConnectInputs(CTxDB& txdb, MapPrevTx inputs, map<uint256, CTxIndex>& mapTestPool, const CDiskTxPos& posThisTx,
+    const CBlockIndex* pindexBlock, bool fBlock, bool fMiner, bool fStrictPayToScriptHash)
 {
     // Take over previous transactions' spent pointers
     // fBlock is true when this is called from AcceptBlock when a new best-block is added to the blockchain
@@ -1502,8 +1501,9 @@ bool CTransaction::ConnectInputs(CTxDB& txdb, MapPrevTx inputs,
             int64 nTxFee = nValueIn - GetValueOut();
             if (nTxFee < 0)
                 return DoS(100, error("ConnectInputs() : %s nTxFee < 0", GetHash().ToString().substr(0,10).c_str()));
-            // ppcoin: enforce transaction fees for every block
-            if (nTxFee < GetMinFee())
+
+            // enforce transaction fees for every block until 1 May 2014 04:00:00 GMT
+            if (!fTestNet && nTxFee < GetMinFee() && nTime < OUTPUT_SWITCH_TIME)
                 return fBlock? DoS(100, error("ConnectInputs() : %s not paying required fee=%s, paid=%s", GetHash().ToString().substr(0,10).c_str(), FormatMoney(GetMinFee()).c_str(), FormatMoney(nTxFee).c_str())) : false;
 
             nFees += nTxFee;

diff --git a/src/main.h b/src/main.h
index 4955be9..267819b 100644 (file)
--- a/src/main.h
+++ b/src/main.h
@@ -43,7 +43,7 @@ static const unsigned int STAKE_SWITCH_TIME = 1371686400; // Thu, 20 Jun 2013 00
 static const unsigned int TARGETS_SWITCH_TIME = 1374278400; // Sat, 20 Jul 2013 00:00:00 GMT
 static const unsigned int CHAINCHECKS_SWITCH_TIME = 1379635200; // Fri, 20 Sep 2013 00:00:00 GMT
 static const unsigned int STAKECURVE_SWITCH_TIME = 1382227200; // Sun, 20 Oct 2013 00:00:00 GMT
-static const unsigned int STAKEWEIGHT_SWITCH_TIME = 1388534400; // Wed, 01 Jan 2014 00:00:00 GMT
+static const unsigned int OUTPUT_SWITCH_TIME = 1398916800; // Thu, 01 May 2014 04:00:00 GMT
 
 
 inline bool MoneyRange(int64 nValue) { return (nValue >= 0 && nValue <= MAX_MONEY); }

diff --git a/src/version.h b/src/version.h
index ee0a666..7775a76 100644 (file)
--- a/src/version.h
+++ b/src/version.h
@@ -25,7 +25,7 @@ extern const std::string CLIENT_DATE;
 // network protocol versioning
 //
 
-static const int PROTOCOL_VERSION = 60010;
+static const int PROTOCOL_VERSION = 60011;
 
 // earlier versions not supported as of Feb 2012, and are disconnected
 static const int MIN_PROTO_VERSION = 209;
@@ -47,6 +47,6 @@ static const int MEMPOOL_GD_VERSION = 60002;
 #define DISPLAY_VERSION_MAJOR       0
 #define DISPLAY_VERSION_MINOR       4
 #define DISPLAY_VERSION_REVISION    4
-#define DISPLAY_VERSION_BUILD       5
+#define DISPLAY_VERSION_BUILD       6
 
 #endif

diff --git a/src/wallet.cpp b/src/wallet.cpp
index 3c28c0a..349bbdf 100644 (file)
--- a/src/wallet.cpp
+++ b/src/wallet.cpp
@@ -1451,16 +1451,8 @@ uint64 CWallet::GetStakeWeight(const CKeyStore& keystore, enum StakeWeightMode m
         // this change increases active coins participating the hash and helps
         // to secure the network when proof-of-stake difficulty is low
         //
-        if(fTestNet || (STAKEWEIGHT_SWITCH_TIME < nTime))
-        {
-            // New rule since 01 Jan 2014: Maximum TimeWeight is 90 days.
-            nTimeWeight = min((int64)GetTime() - nTime - nStakeMinAge, (int64)nStakeMaxAge);
-        }
-        else
-        {
-            // Current rule: Maximum TimeWeight is 60 days.
-            nTimeWeight = min((int64)GetTime() - nTime, (int64)nStakeMaxAge) - nStakeMinAge;
-        }
+        // Maximum TimeWeight is 90 days.
+        nTimeWeight = min((int64)GetTime() - nTime - nStakeMinAge, (int64)nStakeMaxAge);
 
         CBigNum bnCoinDayWeight = CBigNum(pcoin.first->vout[pcoin.second].nValue) * nTimeWeight / COIN / (24 * 60 * 60);