diff --git a/src/main/java/org/qortal/block/BlockChain.java b/src/main/java/org/qortal/block/BlockChain.java
index 86a00574..fcae749f 100644
--- a/src/main/java/org/qortal/block/BlockChain.java
+++ b/src/main/java/org/qortal/block/BlockChain.java
@@ -69,7 +69,8 @@ public class BlockChain {
 		newBlockSigHeight,
 		shareBinFix,
 		calcChainWeightTimestamp,
-		transactionV5Timestamp;
+		transactionV5Timestamp,
+		transactionV6Timestamp;
 	}
 
 	// Custom transaction fees
@@ -405,6 +406,10 @@ public class BlockChain {
 		return this.featureTriggers.get(FeatureTrigger.transactionV5Timestamp.name()).longValue();
 	}
 
+	public long getTransactionV6Timestamp() {
+		return this.featureTriggers.get(FeatureTrigger.transactionV6Timestamp.name()).longValue();
+	}
+
 	// More complex getters for aspects that change by height or timestamp
 
 	public long getRewardAtHeight(int ourHeight) {
diff --git a/src/main/java/org/qortal/transaction/Transaction.java b/src/main/java/org/qortal/transaction/Transaction.java
index 8bb90464..a1fd6baa 100644
--- a/src/main/java/org/qortal/transaction/Transaction.java
+++ b/src/main/java/org/qortal/transaction/Transaction.java
@@ -393,7 +393,10 @@ public abstract class Transaction {
 	 * @return transaction version number
 	 */
 	public static int getVersionByTimestamp(long timestamp) {
-		if (timestamp >= BlockChain.getInstance().getTransactionV5Timestamp()) {
+		if (timestamp >= BlockChain.getInstance().getTransactionV6Timestamp()) {
+			return 6;
+		}
+		else if (timestamp >= BlockChain.getInstance().getTransactionV5Timestamp()) {
 			return 5;
 		}
 		return 4;
diff --git a/src/main/resources/blockchain.json b/src/main/resources/blockchain.json
index be62aee4..bba5d3b9 100644
--- a/src/main/resources/blockchain.json
+++ b/src/main/resources/blockchain.json
@@ -57,7 +57,8 @@
 		"newBlockSigHeight": 320000,
 		"shareBinFix": 399000,
 		"calcChainWeightTimestamp": 1620579600000,
-		"transactionV5Timestamp": 1642176000000
+		"transactionV5Timestamp": 1642176000000,
+		"transactionV6Timestamp": 9999999999999
 	},
 	"genesisInfo": {
 		"version": 4,
diff --git a/src/test/resources/test-chain-v2-founder-rewards.json b/src/test/resources/test-chain-v2-founder-rewards.json
index c0ea8fe5..e8a22dfc 100644
--- a/src/test/resources/test-chain-v2-founder-rewards.json
+++ b/src/test/resources/test-chain-v2-founder-rewards.json
@@ -52,7 +52,8 @@
 		"newBlockSigHeight": 999999,
 		"shareBinFix": 999999,
 		"calcChainWeightTimestamp": 0,
-		"transactionV5Timestamp": 0
+		"transactionV5Timestamp": 0,
+		"transactionV6Timestamp": 0
 	},
 	"genesisInfo": {
 		"version": 4,
diff --git a/src/test/resources/test-chain-v2-leftover-reward.json b/src/test/resources/test-chain-v2-leftover-reward.json
index 01505af0..eb6f56a9 100644
--- a/src/test/resources/test-chain-v2-leftover-reward.json
+++ b/src/test/resources/test-chain-v2-leftover-reward.json
@@ -52,7 +52,8 @@
 		"newBlockSigHeight": 999999,
 		"shareBinFix": 999999,
 		"calcChainWeightTimestamp": 0,
-		"transactionV5Timestamp": 0
+		"transactionV5Timestamp": 0,
+		"transactionV6Timestamp": 0
 	},
 	"genesisInfo": {
 		"version": 4,
diff --git a/src/test/resources/test-chain-v2-minting.json b/src/test/resources/test-chain-v2-minting.json
index fcabe4bf..d9893cb2 100644
--- a/src/test/resources/test-chain-v2-minting.json
+++ b/src/test/resources/test-chain-v2-minting.json
@@ -52,7 +52,8 @@
 		"newBlockSigHeight": 999999,
 		"shareBinFix": 999999,
 		"calcChainWeightTimestamp": 0,
-		"transactionV5Timestamp": 0
+		"transactionV5Timestamp": 0,
+		"transactionV6Timestamp": 0
 	},
 	"genesisInfo": {
 		"version": 4,
diff --git a/src/test/resources/test-chain-v2-qora-holder-extremes.json b/src/test/resources/test-chain-v2-qora-holder-extremes.json
index 8ec94631..3fbb1375 100644
--- a/src/test/resources/test-chain-v2-qora-holder-extremes.json
+++ b/src/test/resources/test-chain-v2-qora-holder-extremes.json
@@ -52,7 +52,8 @@
 		"newBlockSigHeight": 999999,
 		"shareBinFix": 999999,
 		"calcChainWeightTimestamp": 0,
-		"transactionV5Timestamp": 0
+		"transactionV5Timestamp": 0,
+		"transactionV6Timestamp": 0
 	},
 	"genesisInfo": {
 		"version": 4,
diff --git a/src/test/resources/test-chain-v2-qora-holder.json b/src/test/resources/test-chain-v2-qora-holder.json
index 38a563b2..b14dc8b7 100644
--- a/src/test/resources/test-chain-v2-qora-holder.json
+++ b/src/test/resources/test-chain-v2-qora-holder.json
@@ -52,7 +52,8 @@
 		"newBlockSigHeight": 999999,
 		"shareBinFix": 999999,
 		"calcChainWeightTimestamp": 0,
-		"transactionV5Timestamp": 0
+		"transactionV5Timestamp": 0,
+		"transactionV6Timestamp": 0
 	},
 	"genesisInfo": {
 		"version": 4,
diff --git a/src/test/resources/test-chain-v2-reward-levels.json b/src/test/resources/test-chain-v2-reward-levels.json
index ab934d26..932a8cda 100644
--- a/src/test/resources/test-chain-v2-reward-levels.json
+++ b/src/test/resources/test-chain-v2-reward-levels.json
@@ -52,7 +52,8 @@
 		"newBlockSigHeight": 999999,
 		"shareBinFix": 6,
 		"calcChainWeightTimestamp": 0,
-		"transactionV5Timestamp": 0
+		"transactionV5Timestamp": 0,
+		"transactionV6Timestamp": 0
 	},
 	"genesisInfo": {
 		"version": 4,
diff --git a/src/test/resources/test-chain-v2-reward-scaling.json b/src/test/resources/test-chain-v2-reward-scaling.json
index b3e358b2..6244ea58 100644
--- a/src/test/resources/test-chain-v2-reward-scaling.json
+++ b/src/test/resources/test-chain-v2-reward-scaling.json
@@ -52,7 +52,8 @@
 		"newBlockSigHeight": 999999,
 		"shareBinFix": 999999,
 		"calcChainWeightTimestamp": 0,
-		"transactionV5Timestamp": 0
+		"transactionV5Timestamp": 0,
+		"transactionV6Timestamp": 0
 	},
 	"genesisInfo": {
 		"version": 4,
diff --git a/src/test/resources/test-chain-v2.json b/src/test/resources/test-chain-v2.json
index 20ff391c..f308712d 100644
--- a/src/test/resources/test-chain-v2.json
+++ b/src/test/resources/test-chain-v2.json
@@ -52,7 +52,8 @@
 		"newBlockSigHeight": 999999,
 		"shareBinFix": 999999,
 		"calcChainWeightTimestamp": 0,
-		"transactionV5Timestamp": 0
+		"transactionV5Timestamp": 0,
+		"transactionV6Timestamp": 0
 	},
 	"genesisInfo": {
 		"version": 4,