Add Jovian activation configuration

go.mod

@@ -20,6 +20,7 @@ require (
 	github.com/fatih/color v1.18.0
 	github.com/fsnotify/fsnotify v1.8.0
 	github.com/go-task/slim-sprig/v3 v3.0.0
+	github.com/golang-jwt/jwt/v4 v4.5.1
 	github.com/golang/snappy v0.0.5-0.20220116011046-fa5810519dcb
 	github.com/google/go-cmp v0.6.0
 	github.com/google/gofuzz v1.2.1-0.20220503160820-4a35382e8fc8
@@ -113,7 +114,6 @@ require (
 	github.com/godbus/dbus/v5 v5.1.0 // indirect
 	github.com/gofrs/flock v0.8.1 // indirect
 	github.com/gogo/protobuf v1.3.2 // indirect
-	github.com/golang-jwt/jwt/v4 v4.5.1 // indirect
 	github.com/golang/protobuf v1.5.4 // indirect
 	github.com/google/gopacket v1.1.19 // indirect
 	github.com/google/pprof v0.0.0-20241009165004-a3522334989c // indirect
@@ -255,6 +255,8 @@ require (
 
 replace github.com/ethereum/go-ethereum => github.com/ethereum-optimism/op-geth v1.101411.5-rc.1
 
+replace github.com/ethereum-optimism/superchain-registry/superchain => github.com/mdehoog/superchain-registry/superchain v0.0.0-20250112212108-52eef42cce64
+
 //replace github.com/ethereum/go-ethereum => ../go-ethereum
 
 // replace github.com/ethereum-optimism/superchain-registry/superchain => ../superchain-registry/superchain

go.sum

@@ -192,8 +192,6 @@ github.com/ethereum-optimism/go-ethereum-hdwallet v0.1.3 h1:RWHKLhCrQThMfch+QJ1Z
 github.com/ethereum-optimism/go-ethereum-hdwallet v0.1.3/go.mod h1:QziizLAiF0KqyLdNJYD7O5cpDlaFMNZzlxYNcWsJUxs=
 github.com/ethereum-optimism/op-geth v1.101411.5-rc.1 h1:8fhtAycm/+xugWev5jInUxgF0Wdc29PxSODZXca6Qi8=
 github.com/ethereum-optimism/op-geth v1.101411.5-rc.1/go.mod h1:n6VeI9cKFxmXCauD7Ji9lgTAg+2TYGLZu5AXgVJB4tk=
-github.com/ethereum-optimism/superchain-registry/superchain v0.0.0-20241213092551-33a63fce8214 h1:94dIMFDCafAQ3FCC1pryuhgfZc1jPoDwK4xSMOPshN8=
-github.com/ethereum-optimism/superchain-registry/superchain v0.0.0-20241213092551-33a63fce8214/go.mod h1:9feO8jcL5OZ1tvRjEfNAHz4Aggvd6373l+ZxmZZAyZs=
 github.com/ethereum/c-kzg-4844 v1.0.0 h1:0X1LBXxaEtYD9xsyj9B9ctQEZIpnvVDeoBx8aHEwTNA=
 github.com/ethereum/c-kzg-4844 v1.0.0/go.mod h1:VewdlzQmpT5QSrVhbBuGoCdFJkpaJlO1aQputP83wc0=
 github.com/ethereum/go-verkle v0.1.1-0.20240829091221-dffa7562dbe9 h1:8NfxH2iXvJ60YRB8ChToFTUzl8awsc3cJ8CbLjGIl/A=
@@ -526,6 +524,8 @@ github.com/mattn/go-runewidth v0.0.9/go.mod h1:H031xJmbD/WCDINGzjvQ9THkh0rPKHF+m
 github.com/mattn/go-runewidth v0.0.15 h1:UNAjwbU9l54TA3KzvqLGxwWjHmMgBUVhBiTjelZgg3U=
 github.com/mattn/go-runewidth v0.0.15/go.mod h1:Jdepj2loyihRzMpdS35Xk/zdY8IAYHsh153qUoGf23w=
 github.com/matttproud/golang_protobuf_extensions v1.0.1/go.mod h1:D8He9yQNgCq6Z5Ld7szi9bcBfOoFv/3dc6xSMkL2PC0=
+github.com/mdehoog/superchain-registry/superchain v0.0.0-20250112212108-52eef42cce64 h1:d3oeJzX40Omcv0QLdWwhqy/+UaomFz+jxehZczVKDHw=
+github.com/mdehoog/superchain-registry/superchain v0.0.0-20250112212108-52eef42cce64/go.mod h1:9feO8jcL5OZ1tvRjEfNAHz4Aggvd6373l+ZxmZZAyZs=
 github.com/mholt/archiver v3.1.1+incompatible h1:1dCVxuqs0dJseYEhi5pl7MYPH9zDa1wBi7mF09cbNkU=
 github.com/mholt/archiver v3.1.1+incompatible/go.mod h1:Dh2dOXnSdiLxRiPoVfIr/fI1TwETms9B8CTWfeh7ROU=
 github.com/microcosm-cc/bluemonday v1.0.1/go.mod h1:hsXNsILzKxV+sX77C5b8FSuKF00vh2OMYv+xgHpAMF4=

op-batcher/batcher/sync_actions.go

@@ -33,7 +33,7 @@ func (s syncActions) String() string {
 // computeSyncActions determines the actions that should be taken based on the inputs provided. The inputs are the current
 // state of the batcher (blocks and channels), the new sync status, and the previous current L1 block. The actions are returned
 // in a struct specifying the number of blocks to prune, the number of channels to prune, whether to wait for node sync, the block
-// range to load into the local state, and whether to clear the state entirely. Returns an boolean indicating if the sequencer is out of sync.
+// range to load into the local state, and whether to clear the state entirely. Returns a boolean indicating if the sequencer is out of sync.
 func computeSyncActions[T channelStatuser](newSyncStatus eth.SyncStatus, prevCurrentL1 eth.L1BlockRef, blocks queue.Queue[*types.Block], channels []T, l log.Logger) (syncActions, bool) {
 
 	// PART 1: Initial checks on the sync status

op-chain-ops/genesis/config.go

@@ -348,6 +348,9 @@ type UpgradeScheduleDeployConfig struct {
 	// L2GenesisIsthmusTimeOffset is the number of seconds after genesis block that the Isthmus hard fork activates.
 	// Set it to 0 to activate at genesis. Nil to disable Isthmus.
 	L2GenesisIsthmusTimeOffset *hexutil.Uint64 `json:"l2GenesisIsthmusTimeOffset,omitempty"`
+	// L2GenesisJovianTimeOffset is the number of seconds after genesis block that the Jovian hard fork activates.
+	// Set it to 0 to activate at genesis. Nil to disable Jovian.
+	L2GenesisJovianTimeOffset *hexutil.Uint64 `json:"l2GenesisJovianTimeOffset,omitempty"`
 	// L2GenesisInteropTimeOffset is the number of seconds after genesis block that the Interop hard fork activates.
 	// Set it to 0 to activate at genesis. Nil to disable Interop.
 	L2GenesisInteropTimeOffset *hexutil.Uint64 `json:"l2GenesisInteropTimeOffset,omitempty"`
@@ -390,6 +393,8 @@ func (d *UpgradeScheduleDeployConfig) ForkTimeOffset(fork rollup.ForkName) *uint
 		return (*uint64)(d.L2GenesisHoloceneTimeOffset)
 	case rollup.Isthmus:
 		return (*uint64)(d.L2GenesisIsthmusTimeOffset)
+	case rollup.Jovian:
+		return (*uint64)(d.L2GenesisJovianTimeOffset)
 	case rollup.Interop:
 		return (*uint64)(d.L2GenesisInteropTimeOffset)
 	default:
@@ -415,6 +420,8 @@ func (d *UpgradeScheduleDeployConfig) SetForkTimeOffset(fork rollup.ForkName, of
 		d.L2GenesisHoloceneTimeOffset = (*hexutil.Uint64)(offset)
 	case rollup.Isthmus:
 		d.L2GenesisIsthmusTimeOffset = (*hexutil.Uint64)(offset)
+	case rollup.Jovian:
+		d.L2GenesisJovianTimeOffset = (*hexutil.Uint64)(offset)
 	case rollup.Interop:
 		d.L2GenesisInteropTimeOffset = (*hexutil.Uint64)(offset)
 	default:
@@ -483,6 +490,10 @@ func (d *UpgradeScheduleDeployConfig) IsthmusTime(genesisTime uint64) *uint64 {
 	return offsetToUpgradeTime(d.L2GenesisIsthmusTimeOffset, genesisTime)
 }
 
+func (d *UpgradeScheduleDeployConfig) JovianTime(genesisTime uint64) *uint64 {
+	return offsetToUpgradeTime(d.L2GenesisJovianTimeOffset, genesisTime)
+}
+
 func (d *UpgradeScheduleDeployConfig) InteropTime(genesisTime uint64) *uint64 {
 	return offsetToUpgradeTime(d.L2GenesisInteropTimeOffset, genesisTime)
 }
@@ -516,6 +527,7 @@ func (d *UpgradeScheduleDeployConfig) forks() []Fork {
 		{L2GenesisTimeOffset: d.L2GenesisGraniteTimeOffset, Name: string(L2AllocsGranite)},
 		{L2GenesisTimeOffset: d.L2GenesisHoloceneTimeOffset, Name: string(L2AllocsHolocene)},
 		{L2GenesisTimeOffset: d.L2GenesisIsthmusTimeOffset, Name: string(L2AllocsIsthmus)},
+		{L2GenesisTimeOffset: d.L2GenesisJovianTimeOffset, Name: string(L2AllocsJovian)},
 	}
 }
 
@@ -996,13 +1008,8 @@ func (d *DeployConfig) RollupConfig(l1StartBlock *types.Header, l2GenesisBlockHa
 				Hash:   l2GenesisBlockHash,
 				Number: l2GenesisBlockNumber,
 			},
-			L2Time: l1StartBlock.Time,
-			SystemConfig: eth.SystemConfig{
-				BatcherAddr: d.BatchSenderAddress,
-				Overhead:    eth.Bytes32(common.BigToHash(new(big.Int).SetUint64(d.GasPriceOracleOverhead))),
-				Scalar:      eth.Bytes32(d.FeeScalar()),
-				GasLimit:    uint64(d.L2GenesisBlockGasLimit),
-			},
+			L2Time:       l1StartBlock.Time,
+			SystemConfig: d.GenesisSystemConfig(),
 		},
 		BlockTime:               d.L2BlockTime,
 		MaxSequencerDrift:       d.MaxSequencerDrift,
@@ -1021,12 +1028,25 @@ func (d *DeployConfig) RollupConfig(l1StartBlock *types.Header, l2GenesisBlockHa
 		GraniteTime:             d.GraniteTime(l1StartTime),
 		HoloceneTime:            d.HoloceneTime(l1StartTime),
 		IsthmusTime:             d.IsthmusTime(l1StartTime),
+		JovianTime:              d.JovianTime(l1StartTime),
 		InteropTime:             d.InteropTime(l1StartTime),
 		ProtocolVersionsAddress: d.ProtocolVersionsProxy,
 		AltDAConfig:             altDA,
 	}, nil
 }
 
+// GenesisSystemConfig converts a DeployConfig to a eth.SystemConfig. If Ecotone is active at genesis, the
+// Overhead value is considered a noop.
+func (d *DeployConfig) GenesisSystemConfig() eth.SystemConfig {
+	cfg := eth.SystemConfig{
+		BatcherAddr: d.BatchSenderAddress,
+		Overhead:    eth.Bytes32(common.BigToHash(new(big.Int).SetUint64(d.GasPriceOracleOverhead))),
+		Scalar:      d.FeeScalar(),
+		GasLimit:    uint64(d.L2GenesisBlockGasLimit),
+	}
+	return cfg
+}
+
 // NewDeployConfig reads a config file given a path on the filesystem.
 func NewDeployConfig(path string) (*DeployConfig, error) {
 	file, err := os.ReadFile(path)

op-chain-ops/genesis/genesis.go

@@ -71,6 +71,7 @@ func NewL2Genesis(config *DeployConfig, l1StartHeader *types.Header) (*core.Gene
 		GraniteTime:                   config.GraniteTime(l1StartTime),
 		HoloceneTime:                  config.HoloceneTime(l1StartTime),
 		IsthmusTime:                   config.IsthmusTime(l1StartTime),
+		JovianTime:                    config.JovianTime(l1StartTime),
 		InteropTime:                   config.InteropTime(l1StartTime),
 		Optimism: &params.OptimismConfig{
 			EIP1559Denominator:       eip1559Denom,

op-chain-ops/genesis/layer_two.go

@@ -28,6 +28,7 @@ const (
 	L2AllocsGranite  L2AllocsMode = "granite"
 	L2AllocsHolocene L2AllocsMode = "holocene"
 	L2AllocsIsthmus  L2AllocsMode = "isthmus"
+	L2AllocsJovian   L2AllocsMode = "jovian"
 )
 
 var (

op-chain-ops/interopgen/recipe.go

@@ -234,6 +234,8 @@ func InteropL2DevConfig(l1ChainID, l2ChainID uint64, addrs devkeys.Addresses) (*
 				L2GenesisFjordTimeOffset:    new(hexutil.Uint64),
 				L2GenesisGraniteTimeOffset:  new(hexutil.Uint64),
 				L2GenesisHoloceneTimeOffset: new(hexutil.Uint64),
+				L2GenesisIsthmusTimeOffset:  new(hexutil.Uint64),
+				L2GenesisJovianTimeOffset:   new(hexutil.Uint64),
 				L2GenesisInteropTimeOffset:  new(hexutil.Uint64),
 				L1CancunTimeOffset:          new(hexutil.Uint64),
 				UseInterop:                  true,

op-e2e/e2eutils/setup.go

@@ -6,7 +6,6 @@ import (
 	"path"
 	"time"
 
-	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/common/hexutil"
 	"github.com/ethereum/go-ethereum/core"
 	"github.com/ethereum/go-ethereum/core/types"
@@ -205,6 +204,8 @@ func Setup(t require.TestingT, deployParams *DeployParams, alloc *AllocParams) *
 		FjordTime:              deployConf.FjordTime(uint64(deployConf.L1GenesisBlockTimestamp)),
 		GraniteTime:            deployConf.GraniteTime(uint64(deployConf.L1GenesisBlockTimestamp)),
 		HoloceneTime:           deployConf.HoloceneTime(uint64(deployConf.L1GenesisBlockTimestamp)),
+		IsthmusTime:            deployConf.IsthmusTime(uint64(deployConf.L1GenesisBlockTimestamp)),
+		JovianTime:             deployConf.JovianTime(uint64(deployConf.L1GenesisBlockTimestamp)),
 		InteropTime:            deployConf.InteropTime(uint64(deployConf.L1GenesisBlockTimestamp)),
 		AltDAConfig:            pcfg,
 	}
@@ -226,16 +227,13 @@ func Setup(t require.TestingT, deployParams *DeployParams, alloc *AllocParams) *
 }
 
 func SystemConfigFromDeployConfig(deployConfig *genesis.DeployConfig) eth.SystemConfig {
-	return eth.SystemConfig{
-		BatcherAddr: deployConfig.BatchSenderAddress,
-		Overhead:    eth.Bytes32(common.BigToHash(new(big.Int).SetUint64(deployConfig.GasPriceOracleOverhead))),
-		Scalar:      eth.Bytes32(deployConfig.FeeScalar()),
-		GasLimit:    uint64(deployConfig.L2GenesisBlockGasLimit),
-	}
+	return deployConfig.GenesisSystemConfig()
 }
 
 func ApplyDeployConfigForks(deployConfig *genesis.DeployConfig) {
-	isHolocene := os.Getenv("OP_E2E_USE_HOLOCENE") == "true"
+	isJovian := os.Getenv("OP_E2E_USE_JOVIAN") == "true"
+	isIsthmus := isJovian || os.Getenv("OP_E2E_USE_ISTHMUS") == "true"
+	isHolocene := isIsthmus || os.Getenv("OP_E2E_USE_HOLOCENE") == "true"
 	isGranite := isHolocene || os.Getenv("OP_E2E_USE_GRANITE") == "true"
 	isFjord := isGranite || os.Getenv("OP_E2E_USE_FJORD") == "true"
 	isEcotone := isFjord || os.Getenv("OP_E2E_USE_ECOTONE") == "true"
@@ -255,6 +253,12 @@ func ApplyDeployConfigForks(deployConfig *genesis.DeployConfig) {
 	if isHolocene {
 		deployConfig.L2GenesisHoloceneTimeOffset = new(hexutil.Uint64)
 	}
+	if isIsthmus {
+		deployConfig.L2GenesisIsthmusTimeOffset = new(hexutil.Uint64)
+	}
+	if isJovian {
+		deployConfig.L2GenesisJovianTimeOffset = new(hexutil.Uint64)
+	}
 	// Canyon and lower is activated by default
 	deployConfig.L2GenesisCanyonTimeOffset = new(hexutil.Uint64)
 	deployConfig.L2GenesisRegolithTimeOffset = new(hexutil.Uint64)

op-e2e/system/e2esys/setup.go

@@ -638,6 +638,8 @@ func (cfg SystemConfig) Start(t *testing.T, startOpts ...StartOption) (*System,
 			FjordTime:               cfg.DeployConfig.FjordTime(uint64(cfg.DeployConfig.L1GenesisBlockTimestamp)),
 			GraniteTime:             cfg.DeployConfig.GraniteTime(uint64(cfg.DeployConfig.L1GenesisBlockTimestamp)),
 			HoloceneTime:            cfg.DeployConfig.HoloceneTime(uint64(cfg.DeployConfig.L1GenesisBlockTimestamp)),
+			IsthmusTime:             cfg.DeployConfig.IsthmusTime(uint64(cfg.DeployConfig.L1GenesisBlockTimestamp)),
+			JovianTime:              cfg.DeployConfig.JovianTime(uint64(cfg.DeployConfig.L1GenesisBlockTimestamp)),
 			InteropTime:             cfg.DeployConfig.InteropTime(uint64(cfg.DeployConfig.L1GenesisBlockTimestamp)),
 			ProtocolVersionsAddress: cfg.L1Deployments.ProtocolVersionsProxy,
 			AltDAConfig:             rollupAltDAConfig,

op-node/rollup/chain_spec.go

@@ -42,6 +42,7 @@ const (
 	Granite  ForkName = "granite"
 	Holocene ForkName = "holocene"
 	Isthmus  ForkName = "isthmus"
+	Jovian   ForkName = "jovian"
 	Interop  ForkName = "interop"
 	// ADD NEW FORKS TO AllForks BELOW!
 	None ForkName = "none"
@@ -57,6 +58,7 @@ var AllForks = []ForkName{
 	Granite,
 	Holocene,
 	Isthmus,
+	Jovian,
 	Interop,
 	// ADD NEW FORKS HERE!
 }
@@ -195,6 +197,9 @@ func (s *ChainSpec) CheckForkActivation(log log.Logger, block eth.L2BlockRef) {
 		if s.config.IsIsthmus(block.Time) {
 			s.currentFork = Isthmus
 		}
+		if s.config.IsJovian(block.Time) {
+			s.currentFork = Jovian
+		}
 		if s.config.IsInterop(block.Time) {
 			s.currentFork = Interop
 		}
@@ -221,6 +226,8 @@ func (s *ChainSpec) CheckForkActivation(log log.Logger, block eth.L2BlockRef) {
 		foundActivationBlock = s.config.IsHoloceneActivationBlock(block.Time)
 	case Isthmus:
 		foundActivationBlock = s.config.IsIsthmusActivationBlock(block.Time)
+	case Jovian:
+		foundActivationBlock = s.config.IsJovianActivationBlock(block.Time)
 	case Interop:
 		foundActivationBlock = s.config.IsInteropActivationBlock(block.Time)
 	}

op-node/rollup/chain_spec_test.go

@@ -47,6 +47,7 @@ var testConfig = Config{
 	GraniteTime:             u64ptr(60),
 	HoloceneTime:            u64ptr(70),
 	IsthmusTime:             u64ptr(80),
+	JovianTime:              u64ptr(90),
 	InteropTime:             nil,
 	BatchInboxAddress:       common.HexToAddress("0xff00000000000000000000000000000000000010"),
 	DepositContractAddress:  common.HexToAddress("0xbEb5Fc579115071764c7423A4f12eDde41f106Ed"),
@@ -191,10 +192,16 @@ func TestCheckForkActivation(t *testing.T) {
 			expectedCurrentFork: Isthmus,
 			expectedLog:         "Detected hardfork activation block",
 		},
+		{
+			name:                "Jovian activation",
+			block:               eth.L2BlockRef{Time: 90, Number: 11, Hash: common.Hash{0xb}},
+			expectedCurrentFork: Jovian,
+			expectedLog:         "Detected hardfork activation block",
+		},
 		{
 			name:                "No more hardforks",
-			block:               eth.L2BlockRef{Time: 700, Number: 11, Hash: common.Hash{0xb}},
-			expectedCurrentFork: Isthmus,
+			block:               eth.L2BlockRef{Time: 700, Number: 12, Hash: common.Hash{0xc}},
+			expectedCurrentFork: Jovian,
 			expectedLog:         "",
 		},
 	}

op-node/rollup/superchain.go

@@ -92,6 +92,8 @@ func LoadOPStackRollupConfig(chainID uint64) (*Config, error) {
 		FjordTime:              chConfig.FjordTime,
 		GraniteTime:            chConfig.GraniteTime,
 		HoloceneTime:           chConfig.HoloceneTime,
+		IsthmusTime:            chConfig.IsthmusTime,
+		JovianTime:             chConfig.JovianTime,
 		BatchInboxAddress:      common.Address(chConfig.BatchInboxAddr),
 		DepositContractAddress: common.Address(addrs.OptimismPortalProxy),
 		L1SystemConfigAddress:  common.Address(addrs.SystemConfigProxy),

op-node/rollup/types.go

@@ -124,6 +124,10 @@ type Config struct {
 	// Active if IsthmusTime != nil && L2 block timestamp >= *IsthmusTime, inactive otherwise.
 	IsthmusTime *uint64 `json:"isthmus_time,omitempty"`
 
+	// JovianTime sets the activation time of the Jovian network upgrade.
+	// Active if JovianTime != nil && L2 block timestamp >= *JovianTime, inactive otherwise.
+	JovianTime *uint64 `json:"jovian_time,omitempty"`
+
 	// InteropTime sets the activation time for an experimental feature-set, activated like a hardfork.
 	// Active if InteropTime != nil && L2 block timestamp >= *InteropTime, inactive otherwise.
 	InteropTime *uint64 `json:"interop_time,omitempty"`
@@ -417,6 +421,11 @@ func (c *Config) IsIsthmus(timestamp uint64) bool {
 	return c.IsthmusTime != nil && timestamp >= *c.IsthmusTime
 }
 
+// IsJovian returns true if the Jovian hardfork is active at or past the given timestamp.
+func (c *Config) IsJovian(timestamp uint64) bool {
+	return c.JovianTime != nil && timestamp >= *c.JovianTime
+}
+
 // IsInterop returns true if the Interop hardfork is active at or past the given timestamp.
 func (c *Config) IsInterop(timestamp uint64) bool {
 	return c.InteropTime != nil && timestamp >= *c.InteropTime
@@ -480,6 +489,14 @@ func (c *Config) IsIsthmusActivationBlock(l2BlockTime uint64) bool {
 		!c.IsIsthmus(l2BlockTime-c.BlockTime)
 }
 
+// IsJovianActivationBlock returns whether the specified block is the first block subject to the
+// Jovian upgrade.
+func (c *Config) IsJovianActivationBlock(l2BlockTime uint64) bool {
+	return c.IsJovian(l2BlockTime) &&
+		l2BlockTime >= c.BlockTime &&
+		!c.IsJovian(l2BlockTime-c.BlockTime)
+}
+
 func (c *Config) IsInteropActivationBlock(l2BlockTime uint64) bool {
 	return c.IsInterop(l2BlockTime) &&
 		l2BlockTime >= c.BlockTime &&
@@ -503,6 +520,9 @@ func (c *Config) ActivateAtGenesis(hardfork ForkName) {
 	case Interop:
 		c.InteropTime = new(uint64)
 		fallthrough
+	case Jovian:
+		c.JovianTime = new(uint64)
+		fallthrough
 	case Isthmus:
 		c.IsthmusTime = new(uint64)
 		fallthrough
@@ -646,6 +666,7 @@ func (c *Config) Description(l2Chains map[string]string) string {
 	banner += fmt.Sprintf("  - Granite: %s\n", fmtForkTimeOrUnset(c.GraniteTime))
 	banner += fmt.Sprintf("  - Holocene: %s\n", fmtForkTimeOrUnset(c.HoloceneTime))
 	banner += fmt.Sprintf("  - Isthmus: %s\n", fmtForkTimeOrUnset(c.IsthmusTime))
+	banner += fmt.Sprintf("  - Jovian: %s\n", fmtForkTimeOrUnset(c.JovianTime))
 	banner += fmt.Sprintf("  - Interop: %s\n", fmtForkTimeOrUnset(c.InteropTime))
 	// Report the protocol version
 	banner += fmt.Sprintf("Node supports up to OP-Stack Protocol Version: %s\n", OPStackSupport)
@@ -683,6 +704,7 @@ func (c *Config) LogDescription(log log.Logger, l2Chains map[string]string) {
 		"granite_time", fmtForkTimeOrUnset(c.GraniteTime),
 		"holocene_time", fmtForkTimeOrUnset(c.HoloceneTime),
 		"isthmus_time", fmtForkTimeOrUnset(c.IsthmusTime),
+		"jovian_time", fmtForkTimeOrUnset(c.JovianTime),
 		"interop_time", fmtForkTimeOrUnset(c.InteropTime),
 		"alt_da", c.AltDAConfig != nil,
 	)