This updates the txscript module dependencies, the copyright year in the
files modified since the previous release, and serves as a base for
txscript/v4.0.0.
The updated direct dependencies in this commit are as follows:
- github.com/decred/dcrd/chaincfg/chainhash@v1.0.3
- github.com/decred/dcrd/chaincfg/v3@v3.1.0
- github.com/decred/dcrd/dcrec/edwards/v2@v2.0.2
- github.com/decred/dcrd/dcrec/secp256k1/v4@v4.0.1
- github.com/decred/dcrd/wire@v1.5.0
- github.com/decred/slog@v1.2.0
The full list of updated direct dependencies since the previous
txscript/v3.0.0 release are as follows:
- github.com/dchest/siphash@v1.2.2
- github.com/decred/base58@v1.0.3
- github.com/decred/dcrd/chaincfg/chainhash@v1.0.3
- github.com/decred/dcrd/chaincfg/v3@v3.1.0
- github.com/decred/dcrd/crypto/blake256@v1.0.0
- github.com/decred/dcrd/dcrec/edwards/v2@v2.0.2
- github.com/decred/dcrd/dcrec/secp256k1/v4@v4.0.1
- github.com/decred/dcrd/wire@v1.5.0
- github.com/decred/slog@v1.2.0
The following direct dependencies are no longer required as compared to
the previous txscript/v3.0.0 release:
- github.com/decred/dcrd/dcrutil/v3
Finally, all modules in the repository that depend on txscript are
tidied to ensure they are updated to use the latest versions hoisted
forward as a result.
This modifies the code to use the opcode definitions in txscript now
that the previous cyclic dependency no longer applies since txscript no
longer depends on stdaddr.
This updates the index subscriber catchup function to update
subscriptions directly with notification instead of going through the
Run lifecycle process which avoids a case of receiving out of sync
index notifications while catch up is in progress.
Multiple typos in error type tests and review issues have also been
fixed in this commit.
This removes last set of references to IndexManager and integrates the
IndexSubscriber into the chain. All indexes have now been updated to
subscribe to the index subscriber for updates.
This adds a Flush method to the DB interface so that users of the DB
type can flush the underlying database to disk as needed.
The immediate use case for this is to allow for flushing dependencies.
For example, the block database always needs to be flushed to disk prior
to the UTXO database being flushed to disk to ensure that the UTXO
database remains in a recoverable state in the event of an unclean
shutdown.
This modifies some recently-updated modules to use a valid prerelease
version so they can be used in require statements in consumer code that
is also under development.
Several commits are needed since there is a dependency chain that
involves transitive deps.
The updated direct dependencies are as follows:
- github.com/decred/dcrd/blockchain/stake/v4@v4.0.0-20210129181600-6ae0142d3b28
- github.com/decred/dcrd/blockchain/v4@4.0.0-20210129181600-6ae0142d3b28
- github.com/decred/dcrd/dcrutil/v4@v4.0.0-20210129181600-6ae0142d3b28
- github.com/decred/dcrd/hdkeychain/v3@v3.0.0-20210129181600-6ae0142d3b28
- github.com/decred/dcrd/txscript/v4@v4.0.0-20210129181600-6ae0142d3b28
This updates the database module dependencies and serves as a base for
database/v2.0.2.
The updated direct dependencies in this commit are as follows:
- github.com/decred/dcrd/chaincfg/v3@v3.0.0
- github.com/decred/dcrd/dcrutil/v3@v3.0.0
- github.com/decred/slog@v1.1.0
- github.com/syndtr/goleveldb@v1.0.1-0.20200815110645-5c35d600f0ca
The full list of updated direct dependencies since the previous
dcrutil/v2.0.1 release are as follows:
- github.com/decred/dcrd/chaincfg/v3@v3.0.0
- github.com/decred/dcrd/dcrutil/v3@v3.0.0
- github.com/decred/dcrd/wire@v1.4.0
- github.com/decred/slog@v1.1.0
- github.com/syndtr/goleveldb@v1.0.1-0.20200815110645-5c35d600f0ca
Finally, all modules in the repository are tidied to ensure they are
updated to use the latest versions hoisted forward as a result.
This updates the dcrutil module dependencies and serves as a base for
dcrutil/v3.0.0.
The updated direct dependencies in this commit are as follows:
- github.com/decred/dcrd/crypto/ripemd160@v1.0.1
- github.com/decred/dcrd/dcrec/edwards/v2@v2.0.1
- github.com/decred/dcrd/dcrec/secp256k1/v3@v3.0.0
The full list of updated direct dependencies since the previous
dcrutil/v2.0.1 release are as follows:
- github.com/decred/base58@v1.0.3
- github.com/decred/dcrd/crypto/ripemd160@v1.0.1
- github.com/decred/dcrd/dcrec/edwards/v2@v2.0.1
- github.com/decred/dcrd/dcrec/secp256k1/v3@v3.0.0
- github.com/decred/dcrd/wire@v1.4.0
Further, the following dependencies that were previously required in the
dcrutil/v2.0.1 release are no longer required:
- github.com/decred/dcrd/chaincfg/v2
Finally, all modules in the repository that depend on dcrutil are tidied
to ensure they are updated to use the latest versions hoisted forward as
a result.
This is based on https://proposals.decred.org/proposals/c96290a but was
modified in order to deal with realities that were unknown at the time
of the specification draft.
It is large and could not really be broken apart due to the pervasive
use of the isTreasuryEnabled flag. It was primarily authored by
* Marco Peereboom <marco@peereboom.us>
* Dave Collins <davec@conformal.com>
* Matheus Degiovani <opensource@matheusd.com>
With additional contributions from
* Donald Adu-Poku <donald.adu@gmail.com>
* Jamie Holdstock <jholdstock@decred.org>
Major changes:
* Add decentralized treasury agenda, as specified in DCP0006, to all supported
nets.
* Add functions to determine if the decentralized treasury agenda is active at
given block.
* Add new opcode OP_TADD that is a nop in txscript but is used to tag scripts
that credit the treasury account. This opcode is overloaded for treasurybase
and for normal transactions.
* Add new opcode OP_TSPEND that is a nop in txscript but is used to tag scripts
that debit the treasury account.
* Add new opcode OP_TGEN that is a nop in txscript but is used to tag P2PKH and
P2SH outputs in a TSpend transaction.
* Add functions that detect if a transaction is a valid TAdd, TSpend
or treasurybase transaction.
* Add error codes that return specific treasurybase/TAdd/TSpend consensus
violations.
* Modify countSpentOutputs to deal with treasury opcodes accordingly.
* Modify indexBlock to skip treasury transactions that do not have inputs.
* Add IsTreasuryEnabled call to ChainQueryer interface.
* Add treasury logger for debugging and logging the decentralized treasury
subsystem.
* Add IsTreasuryActive flag to BlockConnectedNtfnsData and
BlockDisconnectedNtfnsData.
* Modify OP_SSGEN to allow an optional output that contains votes for a TSpend
transaction hash.
* Add function that returns TSpend votes from an SSGen transaction.
* Modify CalcStakeVoteSubsidy so that treasurybase, unlike coinbase, is always
awarded the full percentage of the assigned block reward.
* Add helper functions to do all TSpend math so that callers don't roll their
own.
* Modify IsCoinBaseTx to not mistake a TSpend transaction as a coinbase.
* Add checkTreasuryBase function that verifies that a treasurybase is properly
constructed and pays the right amount to the treasury account.
* Add functions to calculate treasury balance for the provided block hash/node.
* Add function that verifies if a TSpend has a valid signature.
* Add functions to determine if a TSpend is not overspending.
* Add function to determine if a TSpend has been mined on the provided chain.
* Add functions that count and verifies treasury spend votes.
* Modify connectTransaction and disconnectTransactions to deal with the various
treasury transactions.
* Split CheckTransactionSanity in two functions
checkTransactionSanityContextFree and checkTransactionSanityContextual. This
is done in order to keep the decentralized treasury, which is always
contextual, from infecting the context free checks.
* Modify checkTransactionSanityContextual to recognize and verify treasury
transactions.
* Modify CheckTransactionSanity to deal with treasury transactions.
* Split checkBlockSanity in two functions checkBlockSanityContextFree and
checkBlockSanityContextual. This is done in order to keep the decentralized
treasury, which is always contextual, from infecting the context free checks.
* Modify checkBlockSanityContextual to enforce treasurybase and TAdd consensus
checks.
* Modify checkBlockPositional by unindenting it and adding TSpend consensus
enforcement.
* Modify checkCoinbaseUniqueHeightWithAddress to deal with the removal of the
project subsidy from output 0.
* Add checkCoinbaseUniqueHeightWithTreasuryBase that verifies coinbase and
treasurybase in the provided block.
* Unindent checkBlockContext.
* Modify checkTicketRedeemerCommitments and checkVoteInputs to deal with
potential tspend votes.
* Modify CheckTransactionInputs to skip treasurybase transactions.
* Modify CheckTransactionInputs to deal with TSpend transactions. Ensure the
provided Pi key is valid and that the signature is valid for the transaction.
Ensure that treasury TAdd and TSpend transaction utxo can only be spent after
coinbase maturity.
* Modify CountSigOps to deal with treasury transactions.
* Modify CountP2SHSigOps to deal with treasury transactions.
* Modify getStakeTreeFees to skip treasury transactions. Modify
totalOutputs to subtract ValueIn 0 for TSpend and treasurybase transactions.
* Modify checkTransactionsAndConnect to deal with modified amounts.
* Add tspendChecks function that verifies an entire TSpend transaction
validity at the point of the provided block. It ensures a TSpend is on a TVI.
It ensures the TSpend is in the valid window. It verifies that a TSpend In
and Out amounts match. It ensures a TSpend has the ValueIn amount encoded in
the OP_RETURN in Out 0. It ensures a TSpend has not been mined before on this
chain. It ensures a TSpend has the requisite votes. It ensures a TSpend is
not overspending.
* Modify checkConnectBlock to call checkTreasuryBase and tspendChecks when
treasury agenda is active.
* Add two tables to the database. Table "treasury" records the balance as of
this block and balance changes that occurred in this block which will become
active in CoinbaseMaturity blocks. Table "tspend" records all block hashes
where a TSpend has been mined this is to detect forks and prevent a Tspend
from being mined more than once.
* Modify handleBlockchainNotification to communicate if the treasury agenda is
active and skip treasurybase transaction when needed.
* Add various Treasury parameters to chaincfg params.
* Add hardcoded Tspend signatures in dcr_tmux_simnet_setup.sh.
* Add notifytspend and stoptspend calls to the RPC server. notifytspend
notifies the mempool when a TSpend transaction arrives.
* Modify commit filters V2 to recognize TAdd and TSpend transactions. It was
possible to modify V2 instead of introducing V3 because nothing changes from
the viewpoint of the wallet and treasury opcodes are disallowed prior to
agenda activation.
* Modify AddMemPoolTransaction to skip TSpend transactions that would throw the
fee estimator off.
* Add IsTreasuryAgendaActive, OnTSpendReceived and TSpendMinedOnAncestor to
mempool.Config in order to reject/accept TSpends in the mempool.
* Modify checkPoolDoubleSpend to ignore treasurybase.
* Modify mempool.maybeAcceptTransaction to enforce treasury standardness rules.
Don't allow TSpend transactions prior to stake validation height. Skip
treasurybase and tspend transactions in the orphan test. Ensure a tspend is
in a valid window. Ensure not more than 7 TSpends are active in the mempool.
Ensure TSpend has a well-known Pi key. Ensure The provided Pi key was used to
sign the transaction. Ensure TSpend was not mined in an ancestor block.
Notify subscribers that a valid TSpend was received.
* Add standardCoinbaseOpReturn and standardTreasurybaseOpReturn to create an
OP_RETURN followed by a data push that little endian encodes the height of
the block. Then there are a number of random bytes to ensure that the
transaction hash is always random.
* Modify createCoinbaseTx to create a coinbase that is valid when treasury is
enabled or not. Additionally, alter the transaction version if treasury is
enabled.
* Add createTreasuryBaseTx that creates a standard treasurybase.
* Modify maybeInsertStakeTx to recognize treasurybase and TSpend transactions.
* Modify handleTooFewVoters to call createTreasuryBaseTx when the treasury
agenda is active. Skip copying treasurybase.
* Modify NewBlockTemplate to recognize and deal with treasury transactions.
Skip TSpend transaction if block is not a TVI. Skip TSpend transaction if it
is not in the proper window. Skip TSpend transaction if a TSpend does not
have enough yes votes. Skip TSpend transaction if it overspends the treasury
account. Skip TAdd if there are more than 20 TAdds in the block. Create
treasurybase if required. Insert valid TAdd/TSpend transactions into stake
tree.
* Add TreasuryBalance and IsTreasuryAgendaActive to rpcserver Chain interface.
* Add gettreasurybalance, sendfromtreasury and sendtotreasury calls to RPC
server.
* Add notifytspend and stopnotifytspend to RPC websocket commands.
* Add simnet miner to generate large number of blocks during rpctests without
triggering PoW difficulty increases. This is used to verify various treasury
and tspend conditions during CI/CT.
* Modify RPC voting wallet to also vote on TSpends.
* Add json tests to verify all new opcodes and corner cases in the script
engine.
* Modify isStakeOpcode to recognize treasury opcodes.
* Modify countSigOpsV0 to count TSpends.
* Modify handleStakeOutSign to deal with TSpends.
* Modify SignTxOutput to recognize TSpends.
* Add TSpendSignatureScript that signs a TSpend transaction.
* Add TreasuryAddTy and TreasurySpendTy types to the standard scripts.
* Add isTreasuryAddScript and isTreasurySpendScript functions that recognize
a form of TAdd and TSpend transactions.
* Modify ExtractPkScriptAddrs to deal with TAdd and TSpend outputs.
* Add TxVersionSeqLock = 2 and TxVersionTreasury = 3 to wire. This is
used to discriminate between treasury and non-treasury scripts.
* Rig up all functions that need the isTreasuryEnabledflag directly or
indirectly.
* Shuffle various functions around and export them when they were needed to be
called from other packages.
* Added and modified numerous tests to verify (hopefully) all corner cases that
the decentralized treasury agenda has added.
This modifies all prelease modules to use the latest commit to work out
more transitive dependency issues. Several of these are needed due to
the dependency chain.
The updated direct dependencies are as follows:
- github.com/decred/dcrd/blockchain/stake/v3@v3.0.0-20200215031403-6b2ce76f0986
- github.com/decred/dcrd/blockchain/v3@v3.0.0-20200215031403-6b2ce76f0986
- github.com/decred/dcrd/chaincfg/v3@v3.0.0-20200215031403-6b2ce76f0986
- github.com/decred/dcrd/connmgr/v3@v3.0.0-20200215031403-6b2ce76f0986
- github.com/decred/dcrd/dcrec/secp256k1/v3@v3.0.0-20200215031403-6b2ce76f0986
- github.com/decred/dcrd/dcrutil/v3@v3.0.0-20200215031403-6b2ce76f0986
- github.com/decred/dcrd/hdkeychain/v3@v3.0.0-20200215031403-6b2ce76f0986
- github.com/decred/dcrd/mempool/v4@v4.0.0-20200215031403-6b2ce76f0986
- github.com/decred/dcrd/mining/v3@v3.0.0-20200215031403-6b2ce76f0986
- github.com/decred/dcrd/txscript/v3@v3.0.0-20200215031403-6b2ce76f0986
This modifies all prelease modules to use the latest commit to work out
more transitive dependency issues. Several of these are needed due to
the dependency chain.
The updated direct dependencies are as follows:
- github.com/decred/dcrd/blockchain/stake/v3@v3.0.0-20200215023918-6247af01d5e3
- github.com/decred/dcrd/blockchain/v3@v3.0.0-20200215023918-6247af01d5e3
- github.com/decred/dcrd/chaincfg/v3@v3.0.0-20200215023918-6247af01d5e3
- github.com/decred/dcrd/connmgr/v3@v3.0.0-20200215023918-6247af01d5e3
- github.com/decred/dcrd/dcrec/secp256k1/v3@v3.0.0-20200215023918-6247af01d5e3
- github.com/decred/dcrd/dcrutil/v3@v3.0.0-20200215023918-6247af01d5e3
- github.com/decred/dcrd/hdkeychain/v3@v3.0.0-20200215023918-6247af01d5e3
- github.com/decred/dcrd/mempool/v4@v4.0.0-20200215023918-6247af01d5e3
- github.com/decred/dcrd/mining/v3@v3.0.0-20200215023918-6247af01d5e3
- github.com/decred/dcrd/txscript/v3@v3.0.0-20200215023918-6247af01d5e3
This modifies all prelease modules to use the latest version to work out
more transitive dependency issues.
The updated direct dependencies are as follows:
- github.com/decred/dcrd/blockchain/stake/v3@v3.0.0-20200215015031-3283587e6add
- github.com/decred/dcrd/blockchain/v3@v3.0.0-20200215015031-3283587e6add
- github.com/decred/dcrd/chaincfg/v3@v3.0.0-20200215015031-3283587e6add
- github.com/decred/dcrd/connmgr/v3@v3.0.0-20200215015031-3283587e6add
- github.com/decred/dcrd/dcrec/secp256k1/v3@v3.0.0-20200215015031-3283587e6add
- github.com/decred/dcrd/dcrutil/v3@v3.0.0-20200215015031-3283587e6add
- github.com/decred/dcrd/hdkeychain/v3@v3.0.0-20200215015031-3283587e6add
- github.com/decred/dcrd/mempool/v4@v4.0.0-20200215015031-3283587e6add
- github.com/decred/dcrd/mining/v3@v3.0.0-20200215015031-3283587e6add
- github.com/decred/dcrd/txscript/v3@v3.0.0-20200215015031-3283587e6add
This modifies all prelease modules to use the latest version so they can
be used in require statements in consumer code that is also under
development without running into transitive dependency issues.
The updated direct dependencies are as follows:
- github.com/decred/dcrd/blockchain/stake/v3@v3.0.0-20200214194519-928737b3e580
- github.com/decred/dcrd/blockchain/v3@v3.0.0-20200214194519-928737b3e580
- github.com/decred/dcrd/connmgr/v3@v3.0.0-20200214194519-928737b3e580
- github.com/decred/dcrd/dcrutil/v3@v3.0.0-20200214194519-928737b3e580
- github.com/decred/dcrd/mempool/v4@v4.0.0-20200214194519-928737b3e580
- github.com/decred/dcrd/mining/v3@v3.0.0-20200214194519-928737b3e580
- github.com/decred/dcrd/txscript/v3@v3.0.0-20200214194519-928737b3e580
This modifies some recently-updated modules to use a valid prerelease
version so they can be used in require statements in consumer code that
is also under development.
The updated direct dependencies are as follows:
- github.com/decred/dcrd/chaincfg/v3@v3.0.0-20200214194519-928737b3e580
- github.com/decred/dcrd/dcrec/secp256k1/v3@v3.0.0-20200214194519-928737b3e580
Upcoming changes constitute breaking public API changes to the secp256k1
module, therefore, this follows the process for introducing major API
breaks which consists of:
- Bump the major version in the go.mod of the affected module if not
already done since the last release tag
- Add a replacement to the go.mod in the main module if not already done
since the last release tag
- Update all imports in the repo to use the new major version as
necessary
- Make necessary modifications to allow all other modules to use the new
version in the same commit
- Repeat the process for any other modules the require a new major as a
result of consuming the new major(s)
Upcoming changes constitute breaking public API changes to the chaincfg
module, therefore, this follows the process for introducing major API
breaks which consists of:
- Bump the major version in the go.mod of the affected module if not
already done since the last release tag
- Add a replacement to the go.mod in the main module if not already done
since the last release tag
- Update all imports in the repo to use the new major version as
necessary
- Make necessary modifications to allow all other modules to use the
new version in the same commit
- Repeat the process for any other modules the require a new major as a
result of consuming the new major(s)
This modifies the various modules to use a valid prerelease version so
they can be used in require statements in consumer code that is also
under development.
The updated direct dependencies are as follows:
- github.com/decred/dcrd/blockchain/stake/v3@v3.0.0-20200104000002-54b67d3474fb
- github.com/decred/dcrd/blockchain/v3@v3.0.0-20200104000002-54b67d3474fb
- github.com/decred/dcrd/connmgr/v3@v3.0.0-20200104000002-54b67d3474fb
- github.com/decred/dcrd/dcrutil/v3@v3.0.0-20200104000002-54b67d3474fb
- github.com/decred/dcrd/mempool/v4@v4.0.0-20200104000002-54b67d3474fb
- github.com/decred/dcrd/mining/v3@v3.0.0-20200104000002-54b67d3474fb
- github.com/decred/dcrd/txscript/v3@v3.0.0-20200104000002-54b67d3474fb
This updates the database module dependencies and serves as a base for
database/v2.0.1.
The updated direct dependencies in this commit are as follows:
- github.com/decred/dcrd/chaincfg/chainhash@v1.0.2
- github.com/decred/dcrd/chaincfg/v2@v2.3.0
- github.com/decred/dcrd/dcrutil/v2@v2.0.1
- github.com/decred/dcrd/wire@v1.3.0
The full list of updated direct dependencies since the previous
database/v2.0.0 release are as follows:
- github.com/decred/dcrd/chaincfg/chainhash@v1.0.2
- github.com/decred/dcrd/chaincfg/v2@v2.3.0
- github.com/decred/dcrd/dcrutil/v2@v2.0.1
- github.com/decred/dcrd/wire@v1.3.0
This updates all code in the main module to use the latest major modules
versions to pull in the latest updates.
A more general high level overview of the changes is provided below,
however, there is one semantic change worth calling out independently.
The verifymessage RPC will now return an error when provided with
an address that is not for the current active network and the RPC server
version has been bumped accordingly.
Previously, it would return false which indicated the signature is
invalid, even when the provided signature was actually valid for the
other network. Said behavior was not really incorrect since the
address, signature, and message combination is in fact invalid for the
current active network, however, that result could be somewhat
misleading since a false result could easily be interpreted to mean the
signature is actually invalid altogether which is distinct from the case
of the address being for a different network. Therefore, it is
preferable to explicitly return an error in the case of an address on
the wrong network to cleanly separate these cases.
The following is a high level overview of the changes:
- Replace all calls to removed blockchain merkle root, pow, subsidy, and
coinbase funcs with their standalone module equivalents
- Introduce a new local func named calcTxTreeMerkleRoot that accepts
dcrutil.Tx as before and defers to the new standalone func
- Update block locator handling to match the new signature required by
the peer/v2 module
- Introduce a new local func named chainBlockLocatorToHashes which
performs the necessary conversion
- Update all references to old v1 chaincfg params global instances to
use the new v2 functions
- Modify all cases that parse addresses to provide the now required
current network params
- Include address params with the wsClientFilter
- Replace removed v1 chaincfg constants with local constants
- Create subsidy cache during server init and pass it to the relevant
subsystems
- blockManagerConfig
- BlkTmplGenerator
- rpcServer
- VotingWallet
- Update mining code that creates the block one coinbase transaction to
create the output scripts as defined in the v2 params
- Replace old v2 dcrjson constant references with new types module
- Fix various comment typos
- Update fees module to use the latest major module versions and bump it v2
This updates the main module to use the latest available minor and patch
versions of all modules and reverts the recent change that incorrectly
removed all of the blake256 references from the various go.sum files.
The following required direct dependencies are bumped as follows:
- github.com/decred/dcrd/blockchain/stake@v1.2.1
- github.com/decred/dcrd/blockchain/stake/v2@v2.0.1
- github.com/decred/dcrd/certgen@v1.1.0
- github.com/decred/dcrd/chaincfg@v1.5.2
- github.com/decred/dcrd/chaincfg/chainhash@v1.0.2
- github.com/decred/dcrd/chaincfg/v2@v2.2.0
- github.com/decred/dcrd/dcrutil/v2@v2.0.0
- github.com/decred/dcrd/gcs@v1.1.0
- github.com/decred/dcrd/hdkeychain/v2@v2.0.1
- github.com/decred/dcrd/txscript/v2@v2.0.0
- github.com/decred/dcrwallet/rpc/jsonrpc/types@v1.2.0
This updates the code to make use of the new crypto/blake256 module instead of
github.com/dchest/blake256.
* change the references in the chaincfg/chainhash and gcs modules
* update chaincfg/chainhash to use the new Sum256 API
* remove references to dchest/blake256 from all go.sum files
This modifies the tests to include v2 in the test database names to
ensure they do not conflict with the v1 module in the case both are
being concurrently tested.
This introduces a new interface named BlockSerializer and updates the
functions that currently take a pointer to a dcrutil.Block struct to
accept the interface instead.
This removes the tight coupling between the two packages at the API
boundary and allows callers to easily provide custom values.
Since the interface is already implemented by dcrutil.Block, no further
changes to the code or tests is needed.
This updates the database module to use v2 of the chaincfg module and
bumps the root module to require dcrutil@v1.3.0 accordingly.
Since v2 of the chaincfg module is only used in the tests and standalone
utility, a major version bump of the database module is not required.
