diff --git a/cmd/geth/main.go b/cmd/geth/main.go
index 6cf2fd57ffad..5884b5311fed 100644
--- a/cmd/geth/main.go
+++ b/cmd/geth/main.go
@@ -146,6 +146,7 @@ var (
 		utils.RollupHistoricalRPCTimeoutFlag,
 		utils.RollupDisableTxPoolGossipFlag,
 		utils.RollupComputePendingBlock,
+		utils.RollupHaltOnIncompatibleProtocolVersionFlag,
 		configFileFlag,
 	}, utils.NetworkFlags, utils.DatabasePathFlags)
 
diff --git a/eth/backend.go b/eth/backend.go
index 79d9d6656cb5..7c8df0d7862b 100644
--- a/eth/backend.go
+++ b/eth/backend.go
@@ -579,6 +579,8 @@ func (s *Ethereum) Stop() error {
 	return nil
 }
 
+// HandleRequiredProtocolVersion handles the protocol version signal. This implements opt-in halting,
+// the protocol version data is already logged and metered when signaled through the Engine API.
 func (s *Ethereum) HandleRequiredProtocolVersion(required params.ProtocolVersion) error {
 	var needLevel int
 	switch s.config.RollupHaltOnIncompatibleProtocolVersion {
@@ -601,7 +603,7 @@ func (s *Ethereum) HandleRequiredProtocolVersion(required params.ProtocolVersion
 		haveLevel = 1
 	}
 	if haveLevel >= needLevel { // halt if we opted in to do so at this granularity
-		log.Error("opted to halt, unprepared for protocol change", "required", required, "local", params.OPStackSupport)
+		log.Error("Opted to halt, unprepared for protocol change", "required", required, "local", params.OPStackSupport)
 		return s.nodeCloser()
 	}
 	return nil
diff --git a/eth/catalyst/superchain.go b/eth/catalyst/superchain.go
index e277d2c99dd5..2d44647046b6 100644
--- a/eth/catalyst/superchain.go
+++ b/eth/catalyst/superchain.go
@@ -20,7 +20,7 @@ type SuperchainSignal struct {
 
 func (api *ConsensusAPI) SignalSuperchainV1(signal *SuperchainSignal) (params.ProtocolVersion, error) {
 	if signal == nil {
-		log.Info("received empty superchain version signal", "local", params.OPStackSupport)
+		log.Info("Received empty superchain version signal", "local", params.OPStackSupport)
 		return params.OPStackSupport, nil
 	}
 	// update metrics and log any warnings/info
@@ -31,7 +31,7 @@ func (api *ConsensusAPI) SignalSuperchainV1(signal *SuperchainSignal) (params.Pr
 	LogProtocolVersionSupport(logger, params.OPStackSupport, signal.Required, "required")
 
 	if err := api.eth.HandleRequiredProtocolVersion(signal.Required); err != nil {
-		log.Error("failed to handle required protocol version", "err", err, "required", signal.Required)
+		log.Error("Failed to handle required protocol version", "err", err, "required", signal.Required)
 		return params.OPStackSupport, err
 	}
 
@@ -41,24 +41,24 @@ func (api *ConsensusAPI) SignalSuperchainV1(signal *SuperchainSignal) (params.Pr
 func LogProtocolVersionSupport(logger log.Logger, local, other params.ProtocolVersion, name string) {
 	switch local.Compare(other) {
 	case params.AheadMajor:
-		logger.Info(fmt.Sprintf("ahead with major %s protocol version change", name))
+		logger.Info(fmt.Sprintf("Ahead with major %s protocol version change", name))
 	case params.AheadMinor, params.AheadPatch, params.AheadPrerelease:
-		logger.Debug(fmt.Sprintf("ahead with compatible %s protocol version change", name))
+		logger.Debug(fmt.Sprintf("Ahead with compatible %s protocol version change", name))
 	case params.Matching:
-		logger.Debug(fmt.Sprintf("latest %s protocol version is supported", name))
+		logger.Debug(fmt.Sprintf("Latest %s protocol version is supported", name))
 	case params.OutdatedMajor:
-		logger.Error(fmt.Sprintf("outdated with major %s protocol change", name))
+		logger.Error(fmt.Sprintf("Outdated with major %s protocol change", name))
 	case params.OutdatedMinor:
-		logger.Warn(fmt.Sprintf("outdated with minor backward-compatible %s protocol change", name))
+		logger.Warn(fmt.Sprintf("Outdated with minor backward-compatible %s protocol change", name))
 	case params.OutdatedPatch:
-		logger.Info(fmt.Sprintf("outdated with support backward-compatible %s protocol change", name))
+		logger.Info(fmt.Sprintf("Outdated with support backward-compatible %s protocol change", name))
 	case params.OutdatedPrerelease:
-		logger.Debug(fmt.Sprintf("new %s protocol pre-release is available", name))
+		logger.Debug(fmt.Sprintf("New %s protocol pre-release is available", name))
 	case params.DiffBuild:
-		logger.Debug(fmt.Sprintf("ignoring %s protocolversion signal, local build is different", name))
+		logger.Debug(fmt.Sprintf("Ignoring %s protocolversion signal, local build is different", name))
 	case params.DiffVersionType:
-		logger.Warn(fmt.Sprintf("failed to recognize %s protocol version signal version-type", name))
+		logger.Warn(fmt.Sprintf("Failed to recognize %s protocol version signal version-type", name))
 	case params.EmptyVersion:
-		logger.Debug(fmt.Sprintf("no %s protocol version available to check", name))
+		logger.Debug(fmt.Sprintf("No %s protocol version available to check", name))
 	}
 }