diff --git a/core/tx_pool.go b/core/tx_pool.go
index 37233b74f..40dc97bda 100644
--- a/core/tx_pool.go
+++ b/core/tx_pool.go
@@ -565,7 +565,8 @@ func (pool *TxPool) validateTx(tx *types.Transaction, local bool) error {
 		return ErrInvalidGasPrice
 	}
 	// Heuristic limit, reject transactions over 32KB to prevent DOS attacks
-	if tx.Size() > 32*1024 {
+	// UPDATED to 64KB to support the deployment of bigger contract due to the pressing need for sophisticated/complex contract in financial/capital markets - Nathan Aw
+	if tx.Size() > 64*1024 {
 		return ErrOversizedData
 	}
 	// Transactions can't be negative. This may never happen using RLP decoded
diff --git a/core/tx_pool_test.go b/core/tx_pool_test.go
index 1858abeb0..45330f047 100644
--- a/core/tx_pool_test.go
+++ b/core/tx_pool_test.go
@@ -278,8 +278,8 @@ func TestInvalidTransactions(t *testing.T) {
 		t.Error("expected", ErrGasLimit, "; got", err)
 	}
 
-	data := make([]byte, (32*1024)+1)
-	tx2, _ := types.SignTx(types.NewTransaction(2, common.Address{}, big.NewInt(100),100000, big.NewInt(1), data), types.HomesteadSigner{}, key)
+	data := make([]byte, (64*1024)+1)
+	tx2, _ := types.SignTx(types.NewTransaction(2, common.Address{}, big.NewInt(100), big.NewInt(100000), big.NewInt(1), data), types.HomesteadSigner{}, key)
 	if err := pool.AddRemote(tx2); err != ErrOversizedData {
 		t.Error("expected", ErrOversizedData, "; got", err)
 	}
diff --git a/miner/worker.go b/miner/worker.go
index d6450f8bd..60ba40313 100644
--- a/miner/worker.go
+++ b/miner/worker.go
@@ -344,6 +344,17 @@ func (self *worker) wait() {
 				log.Error("Failed writWriteBlockAndStating block to chain", "err", err)
 				continue
 			}
+
+			if err := core.WritePrivateBlockBloom(self.chainDb, block.NumberU64(), work.privateReceipts); err != nil {
+				log.Error("Failed writing private block bloom", "err", err)
+				continue
+			}
+
+			// check if canon block and write transactions
+			if stat == core.CanonStatTy {
+				// implicit by posting ChainHeadEvent
+				mustCommitNewWork = false
+			}
 			// Broadcast the block and announce chain insertion event
 			self.mux.Post(core.NewMinedBlockEvent{Block: block})
 			var (
diff --git a/p2p/permissions.go b/p2p/permissions.go
index 3cbacb2bc..824bb110a 100644
--- a/p2p/permissions.go
+++ b/p2p/permissions.go
@@ -30,7 +30,6 @@ func isNodePermissioned(nodename string, currentNode string, datadir string, dir
 			log.Debug("isNodePermissioned", "connection", direction, "nodename", nodename[:NODE_NAME_LENGTH], "ALLOWED-BY", currentNode[:NODE_NAME_LENGTH])
 			return true
 		}
-		log.Debug("isNodePermissioned", "connection", direction, "nodename", nodename[:NODE_NAME_LENGTH], "DENIED-BY", currentNode[:NODE_NAME_LENGTH])
 	}
 	log.Debug("isNodePermissioned", "connection", direction, "nodename", nodename[:NODE_NAME_LENGTH], "DENIED-BY", currentNode[:NODE_NAME_LENGTH])
 	return false