diff --git a/src/checkpoints.cpp b/src/checkpoints.cpp
index 5a38209..f234e2f 100644
--- a/src/checkpoints.cpp
+++ b/src/checkpoints.cpp
@@ -37,7 +37,8 @@ namespace Checkpoints
         ( 2360000,  uint256("0x1a1a661bfa9d99dfbce66ece6490a3de416a113d8cd29577874e2f9d14be824c") )
         ( 2439896,  uint256("0x1f7e98043d927f3f8c51514d6bb47325bfcffb85a448fb43f9b254be43180cab") )
         ( 2461312,  uint256("0xa7170d7e3044c6132ee915279ff20b59c14206e13b4ede786d065d17eeb1c8aa") )
-        ( 2468161,  uint256("0x9a702ca9e42bf7e436d01cce2afac6b23a227d1bca3878575983e644c053d47b") );
+        ( 2468161,  uint256("0x9a702ca9e42bf7e436d01cce2afac6b23a227d1bca3878575983e644c053d47b") )
+        ( 3069661,  uint256("0x04e4abb0d2ba8472ac4e304e296bb99d58f44f6482c312648baec93ac17802b0") );
 ;
 
     static MapCheckpoints mapCheckpointsTestnet =
diff --git a/src/clientversion.h b/src/clientversion.h
index 55746b3..a04aa3a 100644
--- a/src/clientversion.h
+++ b/src/clientversion.h
@@ -9,7 +9,7 @@
 #define CLIENT_VERSION_MAJOR       0
 #define CLIENT_VERSION_MINOR       8
 #define CLIENT_VERSION_REVISION    9
-#define CLIENT_VERSION_BUILD       8
+#define CLIENT_VERSION_BUILD       9
 
 // 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/main.cpp b/src/main.cpp
index a53d260..f2da2d6 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -2580,6 +2580,10 @@ bool CBlock::AcceptBlock()
     if (nVersion < 3 && ((!fTestNet && nHeight > 14060) || (fTestNet && nHeight > 0)))
         return error("CheckBlock() : rejected nVersion < 3 block");
 
+    // HardFork from height 3086001, reject block.nVersion < 5 except testnet
+    if (!fTestNet && 3086001 <= nHeight && nVersion < 5)
+        return DoS(100, error("CheckBlock() : (hard fork) reject nVersion < 5 block from height 3086001"));
+
     // Enforce rule that the coinbase starts with serialized block height
     CScript expect = CScript() << nHeight;
     if (!std::equal(expect.begin(), expect.end(), vtx[0].vin[0].scriptSig.begin()))
diff --git a/src/main.h b/src/main.h
index 82a5847..368f878 100644
--- a/src/main.h
+++ b/src/main.h
@@ -854,7 +854,7 @@ class CBlock
 {
 public:
     // header
-    static const int CURRENT_VERSION=4;
+    static const int CURRENT_VERSION=5;
     int nVersion;
     uint256 hashPrevBlock;
     uint256 hashMerkleRoot;
diff --git a/src/net.cpp b/src/net.cpp
index ac7b344..681b91a 100644
--- a/src/net.cpp
+++ b/src/net.cpp
@@ -1154,7 +1154,6 @@ void MapPort()
 // The second name should resolve to a list of seed addresses.
 static const char *strDNSSeed[][2] = {
     {"kumaseed", "kumaseed.tamami-foundation.org"},
-    {"LApool", "kumacoin.seed.lapool.me"},
     {"guest0", "108.61.183.37"},
     {"guest1", "123.217.155.249"},
     {"guest2", "79.137.57.54"},
diff --git a/src/version.h b/src/version.h
index 30850f1..24f455b 100644
--- a/src/version.h
+++ b/src/version.h
@@ -46,7 +46,7 @@ static const int MEMPOOL_GD_VERSION = 60002;
 
 #define DISPLAY_VERSION_MAJOR       1
 #define DISPLAY_VERSION_MINOR       9
-#define DISPLAY_VERSION_REVISION    7
+#define DISPLAY_VERSION_REVISION    8
 #define DISPLAY_VERSION_BUILD       0
 
 #endif