Merge branch 'ethereum:master' into master

README.md

@@ -6,7 +6,7 @@ Golang execution layer implementation of the Ethereum protocol.
 https://pkg.go.dev/badge/github.com/ethereum/go-ethereum
 )](https://pkg.go.dev/github.com/ethereum/go-ethereum?tab=doc)
 [![Go Report Card](https://goreportcard.com/badge/github.com/ethereum/go-ethereum)](https://goreportcard.com/report/github.com/ethereum/go-ethereum)
-[![Travis](https://travis-ci.com/ethereum/go-ethereum.svg?branch=master)](https://travis-ci.com/ethereum/go-ethereum)
+[![Travis](https://app.travis-ci.com/ethereum/go-ethereum.svg?branch=master)](https://app.travis-ci.com/github/ethereum/go-ethereum)
 [![Discord](https://img.shields.io/badge/discord-join%20chat-blue.svg)](https://discord.gg/nthXNEv)
 
 Automated builds are available for stable releases and the unstable master branch. Binary

beacon/engine/types.go

@@ -26,6 +26,16 @@ import (
 	"github.com/ethereum/go-ethereum/trie"
 )
 
+// PayloadVersion denotes the version of PayloadAttributes used to request the
+// building of the payload to commence.
+type PayloadVersion byte
+
+var (
+	PayloadV1 PayloadVersion = 0x1
+	PayloadV2 PayloadVersion = 0x2
+	PayloadV3 PayloadVersion = 0x3
+)
+
 //go:generate go run github.com/fjl/gencodec -type PayloadAttributes -field-override payloadAttributesMarshaling -out gen_blockparams.go
 
 // PayloadAttributes describes the environment context in which a block should
@@ -115,6 +125,21 @@ type TransitionConfigurationV1 struct {
 // PayloadID is an identifier of the payload build process
 type PayloadID [8]byte
 
+// Version returns the payload version associated with the identifier.
+func (b PayloadID) Version() PayloadVersion {
+	return PayloadVersion(b[0])
+}
+
+// Is returns whether the identifier matches any of provided payload versions.
+func (b PayloadID) Is(versions ...PayloadVersion) bool {
+	for _, v := range versions {
+		if v == b.Version() {
+			return true
+		}
+	}
+	return false
+}
+
 func (b PayloadID) String() string {
 	return hexutil.Encode(b[:])
 }

core/types/transaction.go

@@ -19,6 +19,7 @@ package types
 import (
 	"bytes"
 	"errors"
+	"fmt"
 	"io"
 	"math/big"
 	"sync/atomic"
@@ -320,6 +321,7 @@ func (tx *Transaction) Cost() *big.Int {
 
 // RawSignatureValues returns the V, R, S signature values of the transaction.
 // The return values should not be modified by the caller.
+// The return values may be nil or zero, if the transaction is unsigned.
 func (tx *Transaction) RawSignatureValues() (v, r, s *big.Int) {
 	return tx.inner.rawSignatureValues()
 }
@@ -508,6 +510,9 @@ func (tx *Transaction) WithSignature(signer Signer, sig []byte) (*Transaction, e
 	if err != nil {
 		return nil, err
 	}
+	if r == nil || s == nil || v == nil {
+		return nil, fmt.Errorf("%w: r: %s, s: %s, v: %s", ErrInvalidSig, r, s, v)
+	}
 	cpy := tx.inner.copy()
 	cpy.setSignatureValues(signer.ChainID(), v, r, s)
 	return &Transaction{inner: cpy, time: tx.time}, nil

core/types/transaction_signing_test.go

@@ -18,11 +18,13 @@ package types
 
 import (
 	"errors"
+	"fmt"
 	"math/big"
 	"testing"
 
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/crypto"
+	"github.com/ethereum/go-ethereum/params"
 	"github.com/ethereum/go-ethereum/rlp"
 )
 
@@ -136,3 +138,53 @@ func TestChainId(t *testing.T) {
 		t.Error("expected no error")
 	}
 }
+
+type nilSigner struct {
+	v, r, s *big.Int
+	Signer
+}
+
+func (ns *nilSigner) SignatureValues(tx *Transaction, sig []byte) (r, s, v *big.Int, err error) {
+	return ns.v, ns.r, ns.s, nil
+}
+
+// TestNilSigner ensures a faulty Signer implementation does not result in nil signature values or panics.
+func TestNilSigner(t *testing.T) {
+	key, _ := crypto.GenerateKey()
+	innerSigner := LatestSignerForChainID(big.NewInt(1))
+	for i, signer := range []Signer{
+		&nilSigner{v: nil, r: nil, s: nil, Signer: innerSigner},
+		&nilSigner{v: big.NewInt(1), r: big.NewInt(1), s: nil, Signer: innerSigner},
+		&nilSigner{v: big.NewInt(1), r: nil, s: big.NewInt(1), Signer: innerSigner},
+		&nilSigner{v: nil, r: big.NewInt(1), s: big.NewInt(1), Signer: innerSigner},
+	} {
+		t.Run(fmt.Sprintf("signer_%d", i), func(t *testing.T) {
+			t.Run("legacy", func(t *testing.T) {
+				legacyTx := createTestLegacyTxInner()
+				_, err := SignNewTx(key, signer, legacyTx)
+				if !errors.Is(err, ErrInvalidSig) {
+					t.Fatal("expected signature values error, no nil result or panic")
+				}
+			})
+			// test Blob tx specifically, since the signature value types changed
+			t.Run("blobtx", func(t *testing.T) {
+				blobtx := createEmptyBlobTxInner(false)
+				_, err := SignNewTx(key, signer, blobtx)
+				if !errors.Is(err, ErrInvalidSig) {
+					t.Fatal("expected signature values error, no nil result or panic")
+				}
+			})
+		})
+	}
+}
+
+func createTestLegacyTxInner() *LegacyTx {
+	return &LegacyTx{
+		Nonce:    uint64(0),
+		To:       nil,
+		Value:    big.NewInt(0),
+		Gas:      params.TxGas,
+		GasPrice: big.NewInt(params.GWei),
+		Data:     nil,
+	}
+}

core/types/tx_blob_test.go

@@ -65,6 +65,12 @@ var (
 )
 
 func createEmptyBlobTx(key *ecdsa.PrivateKey, withSidecar bool) *Transaction {
+	blobtx := createEmptyBlobTxInner(withSidecar)
+	signer := NewCancunSigner(blobtx.ChainID.ToBig())
+	return MustSignNewTx(key, signer, blobtx)
+}
+
+func createEmptyBlobTxInner(withSidecar bool) *BlobTx {
 	sidecar := &BlobTxSidecar{
 		Blobs:       []kzg4844.Blob{emptyBlob},
 		Commitments: []kzg4844.Commitment{emptyBlobCommit},
@@ -85,6 +91,5 @@ func createEmptyBlobTx(key *ecdsa.PrivateKey, withSidecar bool) *Transaction {
 	if withSidecar {
 		blobtx.Sidecar = sidecar
 	}
-	signer := NewCancunSigner(blobtx.ChainID.ToBig())
-	return MustSignNewTx(key, signer, blobtx)
+	return blobtx
 }

docs/postmortems/2021-08-22-split-postmortem.md

@@ -87,7 +87,7 @@ The blocks on the 'bad' chain were investigated, and Tim Beiko reached out to th
 
 ### Disclosure decision
 
-The geth-team have an official policy regarding [vulnerability disclosure](https://geth.ethereum.org/docs/vulnerabilities/vulnerabilities). 
+The geth-team have an official policy regarding [vulnerability disclosure](https://geth.ethereum.org/docs/developers/geth-developer/disclosures). 
 
 > The primary goal for the Geth team is the health of the Ethereum network as a whole, and the decision whether or not to publish details about a serious vulnerability boils down to minimizing the risk and/or impact of discovery and exploitation.
 

eth/catalyst/api.go

@@ -173,33 +173,41 @@ func newConsensusAPIWithoutHeartbeat(eth *eth.Ethereum) *ConsensusAPI {
 // and return its payloadID.
 func (api *ConsensusAPI) ForkchoiceUpdatedV1(update engine.ForkchoiceStateV1, payloadAttributes *engine.PayloadAttributes) (engine.ForkChoiceResponse, error) {
 	if payloadAttributes != nil {
-		if payloadAttributes.Withdrawals != nil {
-			return engine.STATUS_INVALID, engine.InvalidParams.With(errors.New("withdrawals not supported in V1"))
+		if payloadAttributes.Withdrawals != nil || payloadAttributes.BeaconRoot != nil {
+			return engine.STATUS_INVALID, engine.InvalidParams.With(errors.New("withdrawals and beacon root not supported in V1"))
 		}
 		if api.eth.BlockChain().Config().IsShanghai(api.eth.BlockChain().Config().LondonBlock, payloadAttributes.Timestamp) {
 			return engine.STATUS_INVALID, engine.InvalidParams.With(errors.New("forkChoiceUpdateV1 called post-shanghai"))
 		}
 	}
-	return api.forkchoiceUpdated(update, payloadAttributes, false)
+	return api.forkchoiceUpdated(update, payloadAttributes, engine.PayloadV1, false)
 }
 
-// ForkchoiceUpdatedV2 is equivalent to V1 with the addition of withdrawals in the payload attributes.
+// ForkchoiceUpdatedV2 is equivalent to V1 with the addition of withdrawals in the payload
+// attributes. It supports both PayloadAttributesV1 and PayloadAttributesV2.
 func (api *ConsensusAPI) ForkchoiceUpdatedV2(update engine.ForkchoiceStateV1, params *engine.PayloadAttributes) (engine.ForkChoiceResponse, error) {
 	if params != nil {
-		if params.Withdrawals == nil {
-			return engine.STATUS_INVALID, engine.InvalidParams.With(errors.New("missing withdrawals"))
+		switch api.eth.BlockChain().Config().LatestFork(params.Timestamp) {
+		case forks.Paris:
+			if params.Withdrawals != nil {
+				return engine.STATUS_INVALID, engine.InvalidParams.With(errors.New("withdrawals before shanghai"))
+			}
+		case forks.Shanghai:
+			if params.Withdrawals == nil {
+				return engine.STATUS_INVALID, engine.InvalidParams.With(errors.New("missing withdrawals"))
+			}
+		default:
+			return engine.STATUS_INVALID, engine.UnsupportedFork.With(errors.New("forkchoiceUpdatedV2 must only be called with paris and shanghai payloads"))
 		}
 		if params.BeaconRoot != nil {
 			return engine.STATUS_INVALID, engine.InvalidParams.With(errors.New("unexpected beacon root"))
 		}
-		if api.eth.BlockChain().Config().LatestFork(params.Timestamp) != forks.Shanghai {
-			return engine.STATUS_INVALID, engine.UnsupportedFork.With(errors.New("forkchoiceUpdatedV2 must only be called for shanghai payloads"))
-		}
 	}
-	return api.forkchoiceUpdated(update, params, false)
+	return api.forkchoiceUpdated(update, params, engine.PayloadV2, false)
 }
 
-// ForkchoiceUpdatedV3 is equivalent to V2 with the addition of parent beacon block root in the payload attributes.
+// ForkchoiceUpdatedV3 is equivalent to V2 with the addition of parent beacon block root
+// in the payload attributes. It supports only PayloadAttributesV3.
 func (api *ConsensusAPI) ForkchoiceUpdatedV3(update engine.ForkchoiceStateV1, params *engine.PayloadAttributes) (engine.ForkChoiceResponse, error) {
 	if params != nil {
 		// TODO(matt): according to https://github.com/ethereum/execution-apis/pull/498,
@@ -220,10 +228,10 @@ func (api *ConsensusAPI) ForkchoiceUpdatedV3(update engine.ForkchoiceStateV1, pa
 	// hash, even if params are wrong. To do this we need to split up
 	// forkchoiceUpdate into a function that only updates the head and then a
 	// function that kicks off block construction.
-	return api.forkchoiceUpdated(update, params, false)
+	return api.forkchoiceUpdated(update, params, engine.PayloadV3, false)
 }
 
-func (api *ConsensusAPI) forkchoiceUpdated(update engine.ForkchoiceStateV1, payloadAttributes *engine.PayloadAttributes, simulatorMode bool) (engine.ForkChoiceResponse, error) {
+func (api *ConsensusAPI) forkchoiceUpdated(update engine.ForkchoiceStateV1, payloadAttributes *engine.PayloadAttributes, payloadVersion engine.PayloadVersion, simulatorMode bool) (engine.ForkChoiceResponse, error) {
 	api.forkchoiceLock.Lock()
 	defer api.forkchoiceLock.Unlock()
 
@@ -367,6 +375,7 @@ func (api *ConsensusAPI) forkchoiceUpdated(update engine.ForkchoiceStateV1, payl
 			Random:       payloadAttributes.Random,
 			Withdrawals:  payloadAttributes.Withdrawals,
 			BeaconRoot:   payloadAttributes.BeaconRoot,
+			Version:      payloadVersion,
 		}
 		id := args.Id()
 		// If we already are busy generating this work, then we do not need
@@ -430,6 +439,9 @@ func (api *ConsensusAPI) ExchangeTransitionConfigurationV1(config engine.Transit
 
 // GetPayloadV1 returns a cached payload by id.
 func (api *ConsensusAPI) GetPayloadV1(payloadID engine.PayloadID) (*engine.ExecutableData, error) {
+	if !payloadID.Is(engine.PayloadV1) {
+		return nil, engine.UnsupportedFork
+	}
 	data, err := api.getPayload(payloadID, false)
 	if err != nil {
 		return nil, err
@@ -439,11 +451,17 @@ func (api *ConsensusAPI) GetPayloadV1(payloadID engine.PayloadID) (*engine.Execu
 
 // GetPayloadV2 returns a cached payload by id.
 func (api *ConsensusAPI) GetPayloadV2(payloadID engine.PayloadID) (*engine.ExecutionPayloadEnvelope, error) {
+	if !payloadID.Is(engine.PayloadV1, engine.PayloadV2) {
+		return nil, engine.UnsupportedFork
+	}
 	return api.getPayload(payloadID, false)
 }
 
 // GetPayloadV3 returns a cached payload by id.
 func (api *ConsensusAPI) GetPayloadV3(payloadID engine.PayloadID) (*engine.ExecutionPayloadEnvelope, error) {
+	if !payloadID.Is(engine.PayloadV3) {
+		return nil, engine.UnsupportedFork
+	}
 	return api.getPayload(payloadID, false)
 }
 

eth/catalyst/api_test.go

@@ -210,6 +210,7 @@ func TestEth2PrepareAndGetPayload(t *testing.T) {
 		FeeRecipient: blockParams.SuggestedFeeRecipient,
 		Random:       blockParams.Random,
 		BeaconRoot:   blockParams.BeaconRoot,
+		Version:      engine.PayloadV1,
 	}).Id()
 	execData, err := api.GetPayloadV1(payloadID)
 	if err != nil {
@@ -1076,6 +1077,7 @@ func TestWithdrawals(t *testing.T) {
 		Random:       blockParams.Random,
 		Withdrawals:  blockParams.Withdrawals,
 		BeaconRoot:   blockParams.BeaconRoot,
+		Version:      engine.PayloadV2,
 	}).Id()
 	execData, err := api.GetPayloadV2(payloadID)
 	if err != nil {
@@ -1124,6 +1126,7 @@ func TestWithdrawals(t *testing.T) {
 		Random:       blockParams.Random,
 		Withdrawals:  blockParams.Withdrawals,
 		BeaconRoot:   blockParams.BeaconRoot,
+		Version:      engine.PayloadV2,
 	}).Id()
 	execData, err = api.GetPayloadV2(payloadID)
 	if err != nil {
@@ -1238,12 +1241,15 @@ func TestNilWithdrawals(t *testing.T) {
 
 	for _, test := range tests {
 		var (
-			err      error
-			shanghai = genesis.Config.IsShanghai(genesis.Config.LondonBlock, test.blockParams.Timestamp)
+			err            error
+			payloadVersion engine.PayloadVersion
+			shanghai       = genesis.Config.IsShanghai(genesis.Config.LondonBlock, test.blockParams.Timestamp)
 		)
 		if !shanghai {
+			payloadVersion = engine.PayloadV1
 			_, err = api.ForkchoiceUpdatedV1(fcState, &test.blockParams)
 		} else {
+			payloadVersion = engine.PayloadV2
 			_, err = api.ForkchoiceUpdatedV2(fcState, &test.blockParams)
 		}
 		if test.wantErr {
@@ -1262,6 +1268,7 @@ func TestNilWithdrawals(t *testing.T) {
 			Timestamp:    test.blockParams.Timestamp,
 			FeeRecipient: test.blockParams.SuggestedFeeRecipient,
 			Random:       test.blockParams.Random,
+			Version:      payloadVersion,
 		}).Id()
 		execData, err := api.GetPayloadV2(payloadID)
 		if err != nil {
@@ -1616,6 +1623,7 @@ func TestParentBeaconBlockRoot(t *testing.T) {
 		Random:       blockParams.Random,
 		Withdrawals:  blockParams.Withdrawals,
 		BeaconRoot:   blockParams.BeaconRoot,
+		Version:      engine.PayloadV3,
 	}).Id()
 	execData, err := api.GetPayloadV3(payloadID)
 	if err != nil {

eth/catalyst/simulated_beacon.go

@@ -160,7 +160,7 @@ func (c *SimulatedBeacon) sealBlock(withdrawals []*types.Withdrawal, timestamp u
 		SuggestedFeeRecipient: feeRecipient,
 		Withdrawals:           withdrawals,
 		Random:                random,
-	}, true)
+	}, engine.PayloadV2, true)
 	if err != nil {
 		return err
 	}

ethclient/ethclient.go

@@ -677,18 +677,20 @@ type rpcProgress struct {
 	PulledStates hexutil.Uint64
 	KnownStates  hexutil.Uint64
 
-	SyncedAccounts      hexutil.Uint64
-	SyncedAccountBytes  hexutil.Uint64
-	SyncedBytecodes     hexutil.Uint64
-	SyncedBytecodeBytes hexutil.Uint64
-	SyncedStorage       hexutil.Uint64
-	SyncedStorageBytes  hexutil.Uint64
-	HealedTrienodes     hexutil.Uint64
-	HealedTrienodeBytes hexutil.Uint64
-	HealedBytecodes     hexutil.Uint64
-	HealedBytecodeBytes hexutil.Uint64
-	HealingTrienodes    hexutil.Uint64
-	HealingBytecode     hexutil.Uint64
+	SyncedAccounts         hexutil.Uint64
+	SyncedAccountBytes     hexutil.Uint64
+	SyncedBytecodes        hexutil.Uint64
+	SyncedBytecodeBytes    hexutil.Uint64
+	SyncedStorage          hexutil.Uint64
+	SyncedStorageBytes     hexutil.Uint64
+	HealedTrienodes        hexutil.Uint64
+	HealedTrienodeBytes    hexutil.Uint64
+	HealedBytecodes        hexutil.Uint64
+	HealedBytecodeBytes    hexutil.Uint64
+	HealingTrienodes       hexutil.Uint64
+	HealingBytecode        hexutil.Uint64
+	TxIndexFinishedBlocks  hexutil.Uint64
+	TxIndexRemainingBlocks hexutil.Uint64
 }
 
 func (p *rpcProgress) toSyncProgress() *ethereum.SyncProgress {
@@ -696,22 +698,24 @@ func (p *rpcProgress) toSyncProgress() *ethereum.SyncProgress {
 		return nil
 	}
 	return &ethereum.SyncProgress{
-		StartingBlock:       uint64(p.StartingBlock),
-		CurrentBlock:        uint64(p.CurrentBlock),
-		HighestBlock:        uint64(p.HighestBlock),
-		PulledStates:        uint64(p.PulledStates),
-		KnownStates:         uint64(p.KnownStates),
-		SyncedAccounts:      uint64(p.SyncedAccounts),
-		SyncedAccountBytes:  uint64(p.SyncedAccountBytes),
-		SyncedBytecodes:     uint64(p.SyncedBytecodes),
-		SyncedBytecodeBytes: uint64(p.SyncedBytecodeBytes),
-		SyncedStorage:       uint64(p.SyncedStorage),
-		SyncedStorageBytes:  uint64(p.SyncedStorageBytes),
-		HealedTrienodes:     uint64(p.HealedTrienodes),
-		HealedTrienodeBytes: uint64(p.HealedTrienodeBytes),
-		HealedBytecodes:     uint64(p.HealedBytecodes),
-		HealedBytecodeBytes: uint64(p.HealedBytecodeBytes),
-		HealingTrienodes:    uint64(p.HealingTrienodes),
-		HealingBytecode:     uint64(p.HealingBytecode),
+		StartingBlock:          uint64(p.StartingBlock),
+		CurrentBlock:           uint64(p.CurrentBlock),
+		HighestBlock:           uint64(p.HighestBlock),
+		PulledStates:           uint64(p.PulledStates),
+		KnownStates:            uint64(p.KnownStates),
+		SyncedAccounts:         uint64(p.SyncedAccounts),
+		SyncedAccountBytes:     uint64(p.SyncedAccountBytes),
+		SyncedBytecodes:        uint64(p.SyncedBytecodes),
+		SyncedBytecodeBytes:    uint64(p.SyncedBytecodeBytes),
+		SyncedStorage:          uint64(p.SyncedStorage),
+		SyncedStorageBytes:     uint64(p.SyncedStorageBytes),
+		HealedTrienodes:        uint64(p.HealedTrienodes),
+		HealedTrienodeBytes:    uint64(p.HealedTrienodeBytes),
+		HealedBytecodes:        uint64(p.HealedBytecodes),
+		HealedBytecodeBytes:    uint64(p.HealedBytecodeBytes),
+		HealingTrienodes:       uint64(p.HealingTrienodes),
+		HealingBytecode:        uint64(p.HealingBytecode),
+		TxIndexFinishedBlocks:  uint64(p.TxIndexFinishedBlocks),
+		TxIndexRemainingBlocks: uint64(p.TxIndexRemainingBlocks),
 	}
 }

ethclient/ethclient_test.go

@@ -231,6 +231,13 @@ func newTestBackend(t *testing.T) (*node.Node, []*types.Block) {
 	if _, err := ethservice.BlockChain().InsertChain(blocks[1:]); err != nil {
 		t.Fatalf("can't import test blocks: %v", err)
 	}
+	// Ensure the tx indexing is fully generated
+	for ; ; time.Sleep(time.Millisecond * 100) {
+		progress, err := ethservice.BlockChain().TxIndexProgress()
+		if err == nil && progress.Done() {
+			break
+		}
+	}
 	return n, blocks
 }
 

internal/flags/helpers.go

@@ -115,7 +115,7 @@ func doMigrateFlags(ctx *cli.Context) {
 		for _, parent := range ctx.Lineage()[1:] {
 			if parent.IsSet(name) {
 				// When iterating across the lineage, we will be served both
-				// the 'canon' and alias formats of all commmands. In most cases,
+				// the 'canon' and alias formats of all commands. In most cases,
 				// it's fine to set it in the ctx multiple times (one for each
 				// name), however, the Slice-flags are not fine.
 				// The slice-flags accumulate, so if we set it once as

miner/payload_building.go

@@ -35,12 +35,13 @@ import (
 // Check engine-api specification for more details.
 // https://github.com/ethereum/execution-apis/blob/main/src/engine/cancun.md#payloadattributesv3
 type BuildPayloadArgs struct {
-	Parent       common.Hash       // The parent block to build payload on top
-	Timestamp    uint64            // The provided timestamp of generated payload
-	FeeRecipient common.Address    // The provided recipient address for collecting transaction fee
-	Random       common.Hash       // The provided randomness value
-	Withdrawals  types.Withdrawals // The provided withdrawals
-	BeaconRoot   *common.Hash      // The provided beaconRoot (Cancun)
+	Parent       common.Hash           // The parent block to build payload on top
+	Timestamp    uint64                // The provided timestamp of generated payload
+	FeeRecipient common.Address        // The provided recipient address for collecting transaction fee
+	Random       common.Hash           // The provided randomness value
+	Withdrawals  types.Withdrawals     // The provided withdrawals
+	BeaconRoot   *common.Hash          // The provided beaconRoot (Cancun)
+	Version      engine.PayloadVersion // Versioning byte for payload id calculation.
 }
 
 // Id computes an 8-byte identifier by hashing the components of the payload arguments.
@@ -57,6 +58,7 @@ func (args *BuildPayloadArgs) Id() engine.PayloadID {
 	}
 	var out engine.PayloadID
 	copy(out[:], hasher.Sum(nil)[:8])
+	out[0] = byte(args.Version)
 	return out
 }
 

params/version.go

@@ -23,7 +23,7 @@ import (
 const (
 	VersionMajor = 1          // Major version component of the current release
 	VersionMinor = 13         // Minor version component of the current release
-	VersionPatch = 11         // Patch version component of the current release
+	VersionPatch = 12         // Patch version component of the current release
 	VersionMeta  = "unstable" // Version metadata to append to the version string
 )