6.8 KiB
Notable changes
Shorter Block Times
Shorter block times are coming to Zcash! In the v2.0.7 release we have implemented ZIP208 which will take effect when Blossom activates. Upon activation, the block times for Zcash will decrease from 150 seconds to 75 seconds, and the block reward will decrease accordingly. This affects at what block height halving events will occur, but should not affect the overall rate at which Zcash is mined. The total founders' reward stays the same, and the total supply of Zcash is decreased only microscopically due to rounding.
Blossom Activation on Testnet
The v2.0.7 release includes Blossom activation on testnet, bringing shorter block times. The testnet Blossom activation height is 584000.
Insight Explorer
Changes needed for the Insight explorer have been incorporated into Zcash. This is an experimental feature and therefore is subject to change. To enable, add the experimentalfeatures=1, txindex=1, and insightexplorer=1 flags to zcash.conf. This feature adds several RPCs to zcashd which allow the user to run an Insight explorer.
Changelog
Daira Hopwood (11): Add MIT license to Makefiles Add MIT license to build-aux/m4/bitcoin_* scripts, and a permissive license to build-aux/m4/l_atomic.m4 . Update copyright information for Zcash, leveldb, and libsnark. Add license information for Autoconf macros. refs #2827 Update contrib/debian/copyright for ax_boost_thread.m4 Replace http with https: in links to the MIT license. Also change MIT/X11 to just MIT, since no distinction was intended. qa/zcash/checksec.sh is under a BSD license, with a specialized non-endorsement clause. Link to ticket #2827 using URL Release process doc: add step to set the gpg key id. Release process doc: mention the commit message. Add RPC test and test framework constants for Sapling->Blossom activation.
Dimitris Apostolou (5): Rename vjoinsplit to vJoinSplit Fix naming inconsistency Rename joinsplit to shielded Rename FindWalletTx to FindWalletTxToZap Fix RPC undefined behavior.
Eirik Ogilvie-Wigley (56): Make nextHeight required in CalculateNextWorkRequired Fix nondeterministic failure in sapling migration test Clean up and fix typo Apply suggestions from code review Shorter block times rpc test Update pow_tests for shorter block times Update test_pow for shorter block times Update block subsidy halving for zip208 Make NetworkUpgradeAvailable a method of Params Temporarily disable test Simplify PartitionCheck Use static_assert Add missing new line at end of file pow test cleanup Add message to static_assert Update expiry height for shorter block times Fix zip208 founders reward calculation and update test PartitionCheck tests for shorter block times Add test for Blossom default tx expiry delta Update metrics block height estimation for shorter block times Do not create transactions that will expire after the next epoch Do not send migration transactions that would expire after a network upgrade Fix integer truncation in Blossom halving calculation Update main_tests for shorter block times Use pre-Blossom max FR height when calculating address change interval Make founders reward tests pass before and after Blossom activation height is set Extract Halvings method and add tests Add comments and fix typos Improve EstimateNetHeight calculation Fix check transaction tests Make sure to deactivate blossom in test case Fix parsing txexpirydelta argument Do not add expiring soon threshold to expiry height of txs near NU activation Fix/update comments Make sure that expiry height is not less than height Clarify documentation Update PoW related assertions Remove DefaultExpiryDelta method Algebraic improvements related to halving Distinguish between height and current header height on metrics screen Test clean up and fixes Add copyright info NPE defense in metrics screen Do not estimate height if there is no best header Rename method and use int64_t make-release.py: Versioning changes for 2.0.7-rc1. make-release.py: Updated manpages for 2.0.7-rc1. make-release.py: Updated release notes and changelog for 2.0.7-rc1. Update download path Set testnet Blossom activation height Notable changes for v2.0.7 Enable shorter block times rpc test Grammatical fixes and improvements Remove constant make-release.py: Versioning changes for 2.0.7. make-release.py: Updated manpages for 2.0.7.
Eirik Ogilvie-Wigley (8): Use CommitTransaction() rather than sendrawtransaction() Move reused async rpc send logic to separate file Move reused sign and send logic Do not shadow the return value when testmode is true Inline sign_send_raw_transaction Allow passing optional reserve key as a parameter to SendTransaction Use reserve key for transparent change when sending to Sapling Fix comment in mergetoaddress RPC test
Jack Grigg (5): test: Check for change t-addr reuse in z_sendmany Use reserve key for transparent change when sending to Sprout test: Fix permissions on wallet_changeaddresses RPC test test: Fix pyflakes warnings test: Fix AuthServiceProxy closed conn detection
Larry Ruane (6): add addressindex related RPCs add spentindex RPC for bitcore block explorer add timestampindex related RPC getblockhashes fix getblockdeltas documentation formatting insightexplorer minor bug fixes insightexplorer fix LogPrintf
Luke Dashjr (2): Add MIT license to autogen.sh and share/genbuild.sh Trivial: build-aux/m4/l_atomic: Fix typo
Simon Liu (8): Redefine PoW functions to accept height parameter. Remove use of redundant member nPowTargetSpacing. Replace nPoWTargetSpacing -> PoWTargetSpacing() Update PoW function calls to pass in height. Update GetBlockTimeout() to take height parameter. Replace nPoWTargetSpacing -> PoWTargetSpacing() in ProcessMessage() Replace nPoWTargetSpacing -> PoWTargetSpacing() in tests Modify PartitionCheck to be aware of pre & post Blossom target spacing.
William M Peaster (1): Handful of copyedits to README.md
codetriage-readme-bot (1): Link to development guidelines in CONTRIBUTING.md
Jack Grigg (1): Update README.md
Benjamin Winston (3): Updated location to new download server Fixes 4097, improves caching on parameter downloads Updated location to new download server, fixing #4100