diff --git a/rskj-core/src/main/java/org/ethereum/config/blockchain/upgrades/NetworkUpgrade.java b/rskj-core/src/main/java/org/ethereum/config/blockchain/upgrades/NetworkUpgrade.java
index fa980e86b17..299cc3b9803 100644
--- a/rskj-core/src/main/java/org/ethereum/config/blockchain/upgrades/NetworkUpgrade.java
+++ b/rskj-core/src/main/java/org/ethereum/config/blockchain/upgrades/NetworkUpgrade.java
@@ -31,7 +31,7 @@ public enum NetworkUpgrade {
     HOP400("hop400"),
     HOP401("hop401"),
     FINGERROOT500("fingerroot500"),
-    TBD600("tbd600");
+    ARROWHEAD600("arrowhead600");
 
     private String name;
 
diff --git a/rskj-core/src/main/resources/config/devnet.conf b/rskj-core/src/main/resources/config/devnet.conf
index 6739feac631..d1eda6f0c4c 100644
--- a/rskj-core/src/main/resources/config/devnet.conf
+++ b/rskj-core/src/main/resources/config/devnet.conf
@@ -12,7 +12,7 @@ blockchain.config {
         hop400 = 0,
         hop401 = 0,
         fingerroot500 = 0,
-        tbd600 = 0
+        arrowhead600 = 0
     },
     consensusRules = {
         rskip97 = -1 # disable orchid difficulty drop
diff --git a/rskj-core/src/main/resources/config/main.conf b/rskj-core/src/main/resources/config/main.conf
index 57994237184..6714121446c 100644
--- a/rskj-core/src/main/resources/config/main.conf
+++ b/rskj-core/src/main/resources/config/main.conf
@@ -12,7 +12,7 @@ blockchain.config {
         hop400 = 4598500,
         hop401 = 4976300,
         fingerroot500 = 5468000,
-        tbd600 = -1
+        arrowhead600 = -1
     }
 }
 
diff --git a/rskj-core/src/main/resources/config/regtest.conf b/rskj-core/src/main/resources/config/regtest.conf
index 6becc0c884b..f5949e94cf4 100644
--- a/rskj-core/src/main/resources/config/regtest.conf
+++ b/rskj-core/src/main/resources/config/regtest.conf
@@ -12,7 +12,7 @@ blockchain.config {
         hop400 = 0,
         hop401 = 0,
         fingerroot500 = 0
-        tbd600 = 0
+        arrowhead600 = 0
     },
     consensusRules = {
         rskip97 = -1 # disable orchid difficulty drop
diff --git a/rskj-core/src/main/resources/config/testnet.conf b/rskj-core/src/main/resources/config/testnet.conf
index 3e0d1952a8b..fa1956af5ee 100644
--- a/rskj-core/src/main/resources/config/testnet.conf
+++ b/rskj-core/src/main/resources/config/testnet.conf
@@ -12,7 +12,7 @@ blockchain.config {
         hop400 = 3103000,
         hop401 = 3362200,
         fingerroot500 = 4015800,
-        tbd600 = -1
+        arrowhead600 = -1
     },
     consensusRules = {
         rskip97 = -1, # disable orchid difficulty drop
diff --git a/rskj-core/src/main/resources/expected.conf b/rskj-core/src/main/resources/expected.conf
index aa3f5a5a49d..57e52beb51f 100644
--- a/rskj-core/src/main/resources/expected.conf
+++ b/rskj-core/src/main/resources/expected.conf
@@ -15,7 +15,7 @@ blockchain = {
             hop400 = <height>
             hop401 = <height>
             fingerroot500 = <height>
-            tbd600 = <height>
+            arrowhead600 = <height>
         }
         consensusRules = {
              areBridgeTxsPaid = <hardforkName>
diff --git a/rskj-core/src/main/resources/reference.conf b/rskj-core/src/main/resources/reference.conf
index 8b0259c10b5..8c8ee860e6c 100644
--- a/rskj-core/src/main/resources/reference.conf
+++ b/rskj-core/src/main/resources/reference.conf
@@ -68,12 +68,12 @@ blockchain = {
             rskip357 = hop401
             rskip374 = fingerroot500
             rskip375 = fingerroot500
-            rskip376 = tbd600
+            rskip376 = arrowhead600
             rskip377 = fingerroot500
             rskip383 = fingerroot500
             rskip385 = fingerroot500
-            rskip398 = tbd600
-            rskip400 = tbd600
+            rskip398 = arrowhead600
+            rskip400 = arrowhead600
         }
     }
     gc = {
diff --git a/rskj-core/src/test/java/co/rsk/peg/BridgeSupportProcessFundsMigrationTest.java b/rskj-core/src/test/java/co/rsk/peg/BridgeSupportProcessFundsMigrationTest.java
index 6f1a565d7d3..e7c37058e36 100644
--- a/rskj-core/src/test/java/co/rsk/peg/BridgeSupportProcessFundsMigrationTest.java
+++ b/rskj-core/src/test/java/co/rsk/peg/BridgeSupportProcessFundsMigrationTest.java
@@ -40,7 +40,7 @@ private static Stream<Arguments> processFundMigrationArgsProvider() {
         BridgeMainNetConstants bridgeMainNetConstants = BridgeMainNetConstants.getInstance();
         BridgeTestNetConstants bridgeTestNetConstants = BridgeTestNetConstants.getInstance();
 
-        ActivationConfig.ForBlock wasabiActivations = ActivationConfigsForTest.wasabi100().forBlock(0);;
+        ActivationConfig.ForBlock wasabiActivations = ActivationConfigsForTest.wasabi100().forBlock(0);
         Stream<Arguments> wasabiTests = Stream.of(
             Arguments.of(bridgeTestNetConstants, wasabiActivations, false),
             Arguments.of(bridgeTestNetConstants, wasabiActivations, true),
@@ -48,7 +48,7 @@ private static Stream<Arguments> processFundMigrationArgsProvider() {
             Arguments.of(bridgeMainNetConstants, wasabiActivations, true)
         );
 
-        ActivationConfig.ForBlock papyrusActivations = ActivationConfigsForTest.papyrus200().forBlock(0);;
+        ActivationConfig.ForBlock papyrusActivations = ActivationConfigsForTest.papyrus200().forBlock(0);
         Stream<Arguments> papyrusTests = Stream.of(
             Arguments.of(bridgeTestNetConstants, papyrusActivations, false),
             Arguments.of(bridgeTestNetConstants, papyrusActivations, true),
@@ -56,7 +56,7 @@ private static Stream<Arguments> processFundMigrationArgsProvider() {
             Arguments.of(bridgeMainNetConstants, papyrusActivations, true)
         );
 
-        ActivationConfig.ForBlock irisActivations = ActivationConfigsForTest.iris300().forBlock(0);;
+        ActivationConfig.ForBlock irisActivations = ActivationConfigsForTest.iris300().forBlock(0);
         Stream<Arguments> irisTests = Stream.of(
             Arguments.of(bridgeTestNetConstants, irisActivations, false),
             Arguments.of(bridgeTestNetConstants, irisActivations, true),
@@ -64,7 +64,7 @@ private static Stream<Arguments> processFundMigrationArgsProvider() {
             Arguments.of(bridgeMainNetConstants, irisActivations, true)
         );
 
-        ActivationConfig.ForBlock hopActivations = ActivationConfigsForTest.hop400().forBlock(0);;
+        ActivationConfig.ForBlock hopActivations = ActivationConfigsForTest.hop400().forBlock(0);
         Stream<Arguments> hopTests = Stream.of(
             Arguments.of(bridgeTestNetConstants, hopActivations, false),
             Arguments.of(bridgeTestNetConstants, hopActivations, true),
@@ -73,7 +73,7 @@ private static Stream<Arguments> processFundMigrationArgsProvider() {
         );
 
 
-        ActivationConfig.ForBlock hop401Activations = ActivationConfigsForTest.hop401().forBlock(0);;
+        ActivationConfig.ForBlock hop401Activations = ActivationConfigsForTest.hop401().forBlock(0);
         Stream<Arguments> hop401Tests = Stream.of(
             Arguments.of(bridgeTestNetConstants, hop401Activations, false),
             Arguments.of(bridgeTestNetConstants, hop401Activations, true),
@@ -81,7 +81,7 @@ private static Stream<Arguments> processFundMigrationArgsProvider() {
             Arguments.of(bridgeMainNetConstants, hop401Activations, true)
         );
 
-        ActivationConfig.ForBlock fingerrootActivations = ActivationConfigsForTest.fingerroot500().forBlock(0);;
+        ActivationConfig.ForBlock fingerrootActivations = ActivationConfigsForTest.fingerroot500().forBlock(0);
         Stream<Arguments> fingerrootTests = Stream.of(
             Arguments.of(bridgeTestNetConstants, fingerrootActivations, false),
             Arguments.of(bridgeTestNetConstants, fingerrootActivations, true),
@@ -89,8 +89,8 @@ private static Stream<Arguments> processFundMigrationArgsProvider() {
             Arguments.of(bridgeMainNetConstants, fingerrootActivations, true)
         );
 
-        ActivationConfig.ForBlock tbdActivations = ActivationConfigsForTest.tbd600().forBlock(0);;
-        Stream<Arguments> tbdTests = Stream.of(
+        ActivationConfig.ForBlock tbdActivations = ActivationConfigsForTest.arrowhead600().forBlock(0);
+        Stream<Arguments> arrowheadTests = Stream.of(
             Arguments.of(bridgeTestNetConstants, tbdActivations, false),
             Arguments.of(bridgeTestNetConstants, tbdActivations, true),
             Arguments.of(bridgeMainNetConstants, tbdActivations, false),
@@ -104,7 +104,7 @@ private static Stream<Arguments> processFundMigrationArgsProvider() {
             hopTests,
             hop401Tests,
             fingerrootTests,
-            tbdTests
+            arrowheadTests
         ).flatMap(Function.identity());
     }
 
diff --git a/rskj-core/src/test/java/co/rsk/peg/PowpegMigrationTest.java b/rskj-core/src/test/java/co/rsk/peg/PowpegMigrationTest.java
index 4909cc5219e..6bed2125530 100644
--- a/rskj-core/src/test/java/co/rsk/peg/PowpegMigrationTest.java
+++ b/rskj-core/src/test/java/co/rsk/peg/PowpegMigrationTest.java
@@ -1416,7 +1416,7 @@ private static Stream<Arguments> activationsArgProvider() {
             .forBlock(0);
 
         ActivationConfig.ForBlock tbdActivations = ActivationConfigsForTest
-            .tbd600()
+            .arrowhead600()
             .forBlock(0);
 
         return Stream.of(
diff --git a/rskj-core/src/test/java/org/ethereum/config/blockchain/upgrades/ActivationConfigTest.java b/rskj-core/src/test/java/org/ethereum/config/blockchain/upgrades/ActivationConfigTest.java
index 6f7837e8754..1e4d4cfeab0 100644
--- a/rskj-core/src/test/java/org/ethereum/config/blockchain/upgrades/ActivationConfigTest.java
+++ b/rskj-core/src/test/java/org/ethereum/config/blockchain/upgrades/ActivationConfigTest.java
@@ -42,7 +42,7 @@ class ActivationConfigTest {
             "    hop400: 0",
             "    hop401: 0",
             "    fingerroot500: 0",
-            "    tbd600: 0",
+            "    arrowhead600: 0",
             "},",
             "consensusRules: {",
             "    areBridgeTxsPaid: afterBridgeSync,",
@@ -108,12 +108,12 @@ class ActivationConfigTest {
             "    rskip357: hop401",
             "    rskip374: fingerroot500",
             "    rskip375: fingerroot500",
-            "    rskip376: tbd600",
+            "    rskip376: arrowhead600",
             "    rskip377: fingerroot500",
             "    rskip383: fingerroot500",
             "    rskip385: fingerroot500",
-            "    rskip398: tbd600",
-            "    rskip400: tbd600",
+            "    rskip398: arrowhead600",
+            "    rskip400: arrowhead600",
             "}"
     ));
 
diff --git a/rskj-core/src/test/java/org/ethereum/config/blockchain/upgrades/ActivationConfigsForTest.java b/rskj-core/src/test/java/org/ethereum/config/blockchain/upgrades/ActivationConfigsForTest.java
index 700adcad4c0..beee1a23653 100644
--- a/rskj-core/src/test/java/org/ethereum/config/blockchain/upgrades/ActivationConfigsForTest.java
+++ b/rskj-core/src/test/java/org/ethereum/config/blockchain/upgrades/ActivationConfigsForTest.java
@@ -175,7 +175,7 @@ private static List<ConsensusRule> getFingerroot500Rskips() {
         return rskips;
     }
 
-    private static List<ConsensusRule> getTbd600Rskips() {
+    private static List<ConsensusRule> getArrowhead600Rskips() {
         List<ConsensusRule> rskips = new ArrayList<>();
         rskips.addAll(Arrays.asList(
             ConsensusRule.RSKIP376
@@ -304,11 +304,11 @@ public static ActivationConfig fingerroot500(List<ConsensusRule> except) {
         return enableTheseDisableThose(rskips, except);
     }
 
-    public static ActivationConfig tbd600() {
-        return tbd600(Collections.emptyList());
+    public static ActivationConfig arrowhead600() {
+        return arrowhead600(Collections.emptyList());
     }
 
-    public static ActivationConfig tbd600(List<ConsensusRule> except) {
+    public static ActivationConfig arrowhead600(List<ConsensusRule> except) {
         List<ConsensusRule> rskips = new ArrayList<>();
         rskips.addAll(getPaidBridgeTxsRskip());
         rskips.addAll(getOrchidRskips());
@@ -321,7 +321,7 @@ public static ActivationConfig tbd600(List<ConsensusRule> except) {
         rskips.addAll(getHop400Rskips());
         rskips.addAll(getHop401Rskips());
         rskips.addAll(getFingerroot500Rskips());
-        rskips.addAll(getTbd600Rskips());
+        rskips.addAll(getArrowhead600Rskips());
 
         return enableTheseDisableThose(rskips, except);
     }