166 lines
6.8 KiB
Markdown
166 lines
6.8 KiB
Markdown
Notable changes
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===============
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UTXO and note merging
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---------------------
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In order to simplify the process of combining many small UTXOs and notes into a
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few larger ones, a new RPC method `z_mergetoaddress` has been added. It merges
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funds from t-addresses, z-addresses, or both, and sends them to a single
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t-address or z-address.
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Unlike most other RPC methods, `z_mergetoaddress` operates over a particular
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quantity of UTXOs and notes, instead of a particular amount of ZEC. By default,
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it will merge 50 UTXOs and 10 notes at a time; these limits can be adjusted with
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the parameters `transparent_limit` and `shielded_limit`.
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`z_mergetoaddress` also returns the number of UTXOs and notes remaining in the
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given addresses, which can be used to automate the merging process (for example,
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merging until the number of UTXOs falls below some value).
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UTXO memory accounting
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----------------------
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The default -dbcache has been changed in this release to 450MiB. Users can set -dbcache to a higher value (e.g. to keep the UTXO set more fully cached in memory). Users on low-memory systems (such as systems with 1GB or less) should consider specifying a lower value for this parameter.
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Additional information relating to running on low-memory systems can be found here: [reducing-memory-usage.md](https://github.com/zcash/zcash/blob/master/doc/reducing-memory-usage.md).
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Changelog
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=========
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21E14 (1):
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Remove obsolete reference to CValidationState from UpdateCoins.
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Alex Morcos (1):
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Implement helper class for CTxMemPoolEntry constructor
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Ariel (2):
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add blake2b writer
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update SignatureHash according to Overwinter spec
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Ashley Holman (1):
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TxMemPool: Change mapTx to a boost::multi_index_container
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Cory Fields (2):
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chainparams: move CCheckpointData into chainparams.h
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chainparams: don't use std namespace
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Daniel Kraft (1):
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Clean up chainparams some more.
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Jack Grigg (38):
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Scope the ECDSA constant sizes to CPubKey / CKey classes
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Enable Bash completion for -exportdir
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Check chainValueZat when checking value pool monitoring
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Add missing namespace for boost::get
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Add viewing key prefix to regtest parameters
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zkey_import_export: Synchronize mempools before mining
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Use JoinSplitTestingSetup for Boost sighash tests
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Network upgrade activation mechanism
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Allow changing network upgrade parameters on regtest
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Test network upgrade logic
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Adjust rewind logic to use the network upgrade mechanism
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Add Overwinter to upgrade list
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Add method for fetching the next activation height after a given block height
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Use a boost::optional for nCachedBranchId
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Change UI/log status message for block rewinding
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Update quote from ZIP 200
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Update SignatureHash tests for transaction format changes
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Implement roll-back limit for reorganisation
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Add rollback limit to block index rewinding
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Remove mempool transactions which commit to an unmineable branch ID
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Remove P2WPKH and P2WSH from signing logic
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Add consensus branch ID parameter to SignatureHash, remove SigVersion parameter
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Cleanup: Wrap function arguments
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Regenerate SignatureHash tests
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Make number of inputs configurable in validatelargetx test
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Use v3 transactions with caching for validatelargetx benchmark
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Extend CWallet::GetFilteredNotes to enable filtering on a set of addresses
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Add branch IDs for current and next block to getblockchaininfo
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Check Equihash solution when loading block index
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Implement z_mergetoaddress for combining UTXOs and notes
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Gate z_mergetoaddress as an experimental feature
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Add z_mergetoaddress to release notes
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Check upgrade status in wallet_overwintertx RPC test
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Document that consensus.chaintip != consensus.nextblock just before an upgrade
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Regenerate sighash tests
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wallet_mergetoaddress: Add additional syncs to prevent race conditions
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make-release.py: Versioning changes for 1.0.15-rc1.
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make-release.py: Updated manpages for 1.0.15-rc1.
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Jay Graber (8):
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Add getdeprecationinfo rpc call to return current version and deprecation block height.
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Make applicable only on mainnet
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Add upgrades field to RPC call getblockchaininfo
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Implement transaction expiry for Overwinter
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Add -txexpirydelta cli option
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Add mempool_tx_expiry.py test
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Add expiry to z_mergetoaddress
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Change rpc_tests to 21
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Jonas Nick (1):
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Reduce unnecessary hashing in signrawtransaction
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Jorge Timón (3):
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Chainparams: Introduce CreateGenesisBlock() static function
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Chainparams: CTestNetParams and CRegTestParams extend directly from CChainParams
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Mempool: Use Consensus::CheckTxInputs direclty over main::CheckInputs
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Marius Kjærstad (1):
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Changed http:// to https:// on some links
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Mark Friedenbach (1):
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Explicitly set tx.nVersion for the genesis block and mining tests
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Matt Corallo (5):
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Add failing test checking timelocked-txn removal during reorg
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Fix removal of time-locked transactions during reorg
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Fix comment in removeForReorg
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Make indentation in ActivateBestChainStep readable
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removeForReorg calls once-per-disconnect-> once-per-reorg
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Maxwell Gubler (1):
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Fix syntax examples for z_importwallet and export
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Nicolas DORIER (1):
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Unit test for sighash caching
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Pavel Vasin (1):
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remove unused NOBLKS_VERSION_{START,END} constants
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Pieter Wuille (8):
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Add rewind logic to deal with post-fork software updates
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Support -checkmempool=N, which runs checks on average once every N transactions
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Report non-mandatory script failures correctly
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Refactor script validation to observe amounts
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BIP143: Verification logic
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BIP143: Signing logic
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Precompute sighashes
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Rename to PrecomputedTransactionData
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Simon Liu (11):
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Fixes #2793. Backport commit f33afd3 to increase dbcache default.
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Add documentation about dbcache.
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Add note about dbcache to 1.0.15 release notes.
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Remove redundant service flag NODE_GETUTXO meant for Bitcoin XT.
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Implementation of Overwinter transaction format ZIP 202.
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Add test to check malformed v1 transaction against Overwinter tx parser
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Closes #2964. z_sendmany once again makes v1 tx for taddr to taddr.
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Closes #2954 and #2959. Fixes Overwinter issues in sighash_tests.
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Add field nProtocolVersion to struct NetworkUpgrade.
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Overwinter peer management and network handshaking.
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Add python qa test overwinter_peer_management.
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Suhas Daftuar (3):
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Track coinbase spends in CTxMemPoolEntry
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Don't call removeForReorg if DisconnectTip fails
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Fix removeForReorg to use MedianTimePast
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jc (1):
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read hashReserved from disk block index
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syd (2):
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Fix libsnark dependency build.
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Remove OSX and Windows files from Makefile + share directory.
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