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![jack@z.cash](/assets/img/avatar_default.png)
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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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