update to v1.2.1 mandatory

Reward halved at block 268840 and halved thereafter at Block 467200 and
every 2 years.

src/checkpoints.cpp

@@ -36,6 +36,10 @@ namespace Checkpoints
     static MapCheckpoints mapCheckpoints =
         boost::assign::map_list_of
         (  0, uint256("0xbcb2bb00da6bdf5f80e2afce42307b7fe664f3ec789b6c61936e03ea0e9cf5cc"))
+		(  17011, uint256("0x70004956cda2df2e33c455aff894829c3bb4165216423d98348e9c9b4c6aa696"))
+		(  170100, uint256("0x09c9deac7ab6b07b5bee5fbaa7084d6ca5710132bdacb1dcf4493c0e499eed99"))
+		(  244388, uint256("0xfadfdcce012970859df05da1945f65efad091b8840593b922c1be160d6440134"))
+		(  256036, uint256("0x7998244d4e44c9aef2749798caf49c21a1fbe3c555e6a7c5bba8eee1dffc3645"))
         ;
     static const CCheckpointData data = {
         &mapCheckpoints,

src/clientversion.h

@@ -8,8 +8,8 @@
 // These need to be macros, as version.cpp's and bitcoin-qt.rc's voodoo requires it
 #define CLIENT_VERSION_MAJOR       0
 #define CLIENT_VERSION_MINOR       1
-#define CLIENT_VERSION_REVISION    1
-#define CLIENT_VERSION_BUILD       2
+#define CLIENT_VERSION_REVISION    2
+#define CLIENT_VERSION_BUILD       1
 
 // Set to true for release, false for prerelease or test build
 #define CLIENT_VERSION_IS_RELEASE  true

src/main.cpp

@@ -1093,9 +1093,15 @@ int64 static GetBlockValue(int nHeight, int64 nFees)
 		nSubsidy = 850500 * COIN; //first block premine less than 1%  0.8505%
 
 	}
-    // Subsidy is cut in half every 840000 blocks, which will occur approximately every 4 years
-    nSubsidy >>= (nHeight / 934400); // Litecoin: 840k blocks in ~4 years Quatloo: 934.4k blocks ~ 4 years
-
+    if(nHeight >= 268840) // (2.25 min intervals in 20 days) + 256036 (block height on 10/25/15 at 10pm -- so around 11/14/2015 halving will occur
+	{
+	     //change of the first halving of block reward at block 268840
+		nSubsidy = 8.505 * COIN;
+
+	}
+    // Subsidy is cut in half every 467200 blocks, which will occur approximately every 2 years
+    //nSubsidy >>= (nHeight / 934400); //  Quatloo: 934.4k blocks ~ 4 years
+	nSubsidy >>= (nHeight / 467200); //  Quatloo: 467.2k blocks ~ 2 years
     return nSubsidy + nFees;
 }
 

src/qt/aboutdialog.cpp

@@ -10,7 +10,7 @@
 
 // Copyright year (2009-this)
 // Todo: update this when changing our copyright comments in the source
-const int ABOUTDIALOG_COPYRIGHT_YEAR = 2014;
+const int ABOUTDIALOG_COPYRIGHT_YEAR = 2015;
 
 AboutDialog::AboutDialog(QWidget *parent) :
     QDialog(parent),