Skip to content

Latest commit

 

History

History
406 lines (372 loc) · 30.5 KB

release-notes-1.8.0.md

File metadata and controls

406 lines (372 loc) · 30.5 KB
Raw

Release Notes for BCH Unlimited 1.8.0

BCH Unlimited version 1.8.0 is now available from:

https://bitcoinunlimited.info/download

Please report bugs using the issue tracker at github:

https://github.com/BitcoinUnlimited/BitcoinUnlimited/issues

This is a major release of BCH Unlimited compatible with the upcoming protocol upgrade of the Bitcoin Cash network. You could find May 15th, 2020 upgrade specifications here:

The following is a list of the previous network upgrades specifications:

Upgrading

If you are running an older version, shut it down. Wait until it has completely shut down (which might take a few minutes for older versions), then run the installer (on Windows) or just copy over /Applications/Bitcoin-Qt (on Mac) or bitcoind/bitcoin-qt (on Linux).

Main Changes in 1.8.0

This is list of the main changes that have been merged in this release:

  • Project rebrand to BCH Unlimited
  • Increase length of unconfirmed transaction to 500
  • Drastically improve performance of mempool management
  • OP_REVERSEBYTES implementation
  • SigChecks implementation
  • Failure recovery for Graphene
  • Graphene improve block construction reliability
  • Improve QA tests (both units and functional tests)
  • Reduce resource requirement for Parallel Validation
  • Fix datadir compatibility problem due to unspecified ABC parking/unparking chain concept
  • Clean up and update the seeders list
  • Various improvements to deadlock detectors
  • Misc improvements to IBD
  • Use ctor to improve fetching tx from disc (txindex=1)
  • Add a priority queue for urgent message processing
  • Documentation update and improvements
  • Improve ElectrsCash integration
  • Rewrite of the fee estimator

Features Details

Increase length of unconfirmed transaction to 500 and mempool management improvements

In previous release (1.7) we improved the code base to deal with chain of unconfirmed transactions in the mempool during the getblocktemplate work by 2 order of magnitudes. In this release O(n^2) complexity was removed from the code that evict transactions from the mempool after they are included in a block that won the PoW lottery, and the code that adds a transaction to a long chain in the mempool was optimized.

That let us increase the maximum length on unconfirmed transactions accepted in the mempool to 500 without hitting any penalty performance wise.

Increasing unilaterally such parameter is not something a single implementation, especially if not the most used, could do without some care. The problem is that this parameter is something we call "quasi-consensus" or in other words: there exists network wide configuration values that, if inconsistent, cause undesirable network behavior (but do not cause a fork).

An example of this undesirable side effect is increasing the chance of success of double spend attacks. This is due to the fact that if BCH Unlimited accept, let's say, chain as long as 500 transactions whereas all the rest of the network set the limit to 50. To mitigate this side effect we implemented Intelligent unconfirmed transaction forwarding, i.e. when a block comes in that confirms enough parent transactions to make the transaction valid in non-BU mempools, a double-spender is essentially racing the entire BU network to push his double-spend into the miner nodes that now accept the transaction.

Another unwanted side effect is the opening of new attack vector, which is usually called reverse respend attack. Basically the attacker leverage the discrepancy of network policy mixing unconfirmed UTXO with confirmed UTXO trying to be successful at double spending. This attack is completely solved by BCH Unlimited adding a constraint on transactions that has more than ABC max ancestor limits parents, which is that those could spend only one input, hence the attacker cannot mix UTXOs, so no reverse respend attack can't be carried out.

Failure recovery for Graphene

Graphene is a probabilistic set reconciliation protocol that trades smaller block sizes for an increase in failure rate. Currently, Graphene is tuned so that one block is expected to fail each day, but far fewer failures are observed in practice. Nevertheless, failures do occur and the remedy is to restart the block download process using an alternative protocol such as XThin or Compact Blocks. In this release we implemented the failure recovery scheme introduced in the most recent Graphene paper in order to salvage the block instead of starting over.

The failure recovery protocol uses a second Bloom filter and IBLT. One of the most important aspects to achieving optimal failure recovery size and performance is in properly setting the parameters for these data structures as detailed in the paper. I have made a separate effort to the translate the equations from the paper into python code, which I then compared against the paper's numerical results for several representative examples. For this PR, I translated the python code to C++ and also implemented a unit test to ensure that output for one example test point matches that of the python code.

Commit details

  • 594bde7e8 fix doublespend issue in schnorrsig test (#2160) (Andrew Stone)
  • bdf535868 unnecessary to convert to and from UniValue (#2159) (Andrew Stone)
  • 5ab729661 On startup, use reconsidermostworkchain() when chain not synced (#2158) (Peter Tschipper)
  • f8e612aa1 implement sigchecks consensus rules (Andrew Stone)
  • ea08074ca cherry pick from ABC 18708a54d [sigcheck] Add per tx limit (Amaury Séchet)
  • 3676158e3 cherry pick ABC 276a95b871 (Andrew Stone)
  • 9a804694c [standardness] activate SCRIPT_VERIFY_INPUT_SIGCHECKS in next upgrade (Mark Lundeberg)
  • 4cd9393cc implement sigcheck limits as defined in the 2020 may hard fork. (Andrew Stone)
  • d050e39a3 implement sigcheck counting as defined in the 2020 may hard fork at the script level. Enforcement of sigcheck limits is not implemented in this commit. (Andrew Stone)
  • 0fdb12127 Thread locking (#2157) (Andrew Stone)
  • 64765352f connections are not necessarily evicted in connection order. update nodehandling.py test to reflect that (#2156) (Andrew Stone)
  • 8c313e37b fix comptool problem (#2154) (Andrew Stone)
  • 1f65d1122 increase port range to minimize conflicts when running rpc_tests.py (#2155) (Andrew Stone)
  • d15f1710a Gradually decay assigned misbehavior over time (#2143) (Peter Tschipper)
  • 39d4a4405 Use MAX_THINTYPE_BLOCKS_IN_FLIGHT to determine the chain length… (#2152) (Peter Tschipper)
  • 82effdedb Refactor ReconstructBlock in graphene (#2147) (bissias)
  • 31e3c4166 Add missing lock to CDB Flush (#2153) (Peter Tschipper)
  • cf25f0f18 [qa] Add cashaccount activation height argument (#2151) (dagurval)
  • f20dc55b9 [qa] Improved version parsing in test (#2150) (dagurval)
  • 5af869aa9 [layout] Update various icon and splash screen using the new na… (#2148) (Andrea Suisani)
  • cac784264 [qa] Add a timeout parameter to sync_blocks (#2138) (Andrea Suisani)
  • 99273531d Use a CNodeRef rather than explicit reference counting in PV (#2145) (Peter Tschipper)
  • 4ce5b9e96 [rebrand] BUcash to BCH Unlimited (#2142) (Andrea Suisani)
  • 6503ffc1c fix lockheld checks, throw meaningful logic errors rather than… (#2140) (Griffith)
  • 1b5465279 delete duplicate bunode.py file (#2144) (Griffith)
  • dfb4fb1c7 Fix mempool_packages.py with long chained transactions (#2139) (Peter Tschipper)
  • e434cb828 Fix a pack of nits (#2137) (Peter Tschipper)
  • 1ef846738 Add missing locks and fix false positive clang warnings - part 3 (#2126) (Andrea Suisani)
  • 32e87d60b some graphene block fixes (#2130) (Andrew Stone)
  • 3331b775a Make IsAlreadyValidating() more granular by checking for hash (#2133) (Peter Tschipper)
  • 76d3ab410 op_reversebytes_activitation fix (#2131) (Andrew Stone)
  • c6b4c4942 Updating bitcoinforks.org operetade seeders. (#2123) (Andrea Suisani)
  • e9ad1a50a Turn variables that store CB/GR salt used for any given peers i… (#2120) (Andrea Suisani)
  • 956d4b8e4 check the correct vBlocksToAnnounce (#2125) (Griffith)
  • 383b9729a randomlyDontInv tweak has to affect only to MSG_TX INVs (#2127) (Andrea Suisani)
  • d96fe626a Add missing locks and fix false positive clang warnings - part 2 (#2124) (Andrea Suisani)
  • cd7763c79 improve lock order debug printing (#2128) (Griffith)
  • 3d6201103 enforce lock ordering by checking pointer values instead of mutex name (#2116) (Griffith)
  • 0819d3aba Add missing locks - part 1 (#2121) (Andrea Suisani)
  • 4a41ee6bc Just use 3 nodes in mempool_push.py (Andrea Suisani)
  • f7ae44e67 Use new getters to retrieve BCH default policy for chain of unconfirmed txs (Andrea Suisani)
  • 93cc85090 Add new post-fork ancestor and descendants limit. (Dagur Valberg Johannsson)
  • 536f44a0c Move mempool policy constants to policy/mempool.h (Dagur Valberg Johannsson)
  • 092601dc2 Silence sync.h warning we got when compiling with clang -Wthread-safety-analysis on (Andrea Suisani)
  • 7457db829 fix lock ordering issue between cs_utxo and cs_blockvalidationthread (Greg-Griffith)
  • 8318646dc Add missing cs_vSend while accessing vSendMsg.size() (Andrea Suisani)
  • 910b753ce Annotate GetTotalRecvSize with EXCLUSIVE_LOCKS_REQUIRED(cs_vRecvMsg) (Andrea Suisani)
  • 2fdac73bf Use correct critical section name in net.h GUARDED_BY macro (Andrea Suisani)
  • 65ff1b023 Silence sync.h warning we got when compiling with clang -Wthread-safety-analysis on (Andrea Suisani)
  • a660fde2b Set default txn chain length to 500 (#2080) (Peter Tschipper)
  • 960bae26a Formatting prevector code and related unit tests/benchs (Andrea Suisani)
  • 328f446d6 prevector: avoid misaligned member accesses (Anthony Towns)
  • 7d99c72a5 Use correct C++11 header for std::swap() (Hennadii Stepanov)
  • af4eb785c Remove unused includes (practicalswift)
  • 257bf7988 speed up Unserialize_impl for prevector (Akio Nakamura)
  • ff7c1bb0f Drop defunct prevector compat handling (Ben Woosley)
  • c8582b431 warnings: Compiler warning on memset usage for non-trivial type (Lenny Maiorani)
  • e3a0a5a6e refactor: Lift prevector default vals to the member declaration (Ben Woosley)
  • 47485b11a Explicitly initialize prevector _union (Ben Woosley)
  • dcbe3e5f2 Remove default argument to prevector constructor to remove ambiguity (Ben Woosley)
  • 0b52ede4c Explicitly initialize prevector::_union to avoid new warning (Matt Corallo)
  • 39687de10 Make prevector::resize() and other prevector operations much faster (Wladimir J. van der Laan)
  • bee59af43 prevector: assert successful allocation (Cory Fields)
  • dd1298abf Fix header guards using reserved identifiers (Dan Raviv)
  • f4fe81ebd Port of Core #9505: Prevector Quick Destruct (Jeremy Rubin)
  • db507eedb Add SSE41 and AVX2 libreary to bitcoin-miner linker flag (Andrea Suisani)
  • 28d530e73 Fix --disable-asm for newer assembly checks/code (Luke Dashjr)
  • 927e87b20 build: always attempt to enable targeted sse42 cxxflags (Cory Fields)
  • 20507a629 Enable double-SHA256-for-64-byte code on 32-bit x86 (Pieter Wuille)
  • 856aafb1a 8-way AVX2 implementation for double SHA256 on 64-byte inputs (Pieter Wuille)
  • 5a35a870f 4-way SSE4.1 implementation for double SHA256 on 64-byte inputs (Pieter Wuille)
  • 3902527ad Use SHA256D64 in Merkle root computation (Pieter Wuille)
  • 8f8a13dbf Specialized double sha256 for 64 byte inputs (Pieter Wuille)
  • 80696d3c3 Refactor SHA256 code (Pieter Wuille)
  • 1465cea00 Benchmark Merkle root computation (Pieter Wuille)
  • 1f5376729 OP_REVERSEBYTES activation logic (tobiasruck)
  • 79c912c7c Add create_tx_with_script to blocktools.py (Andrea Suisani)
  • ad1b22cb1 Move pad_tx from txtools.py to blocktools.py (Andrea Suisani)
  • 17bb4db70 Added OP_REVERSEBYTES+implementation, added (always disabled) activation flag (tobiasruck)
  • a00cfab1c Fix a conflict due to the merge of #2068 (Andrea Suisani)
  • eefbbf11f Simplify testing RNG code (Pieter Wuille)
  • 2e5c507a3 Make unit tests use the insecure_rand_ctx exclusively (Pieter Wuille)
  • 4be4f5f52 Bugfix: randbytes should seed when needed (non reachable issue) (Pieter Wuille)
  • 222a18afe Introduce a Shuffle for FastRandomContext and use it in wallet and coinselection (Pieter Wuille)
  • c74b9b2e2 Use a local FastRandomContext in a few more places in net (Pieter Wuille)
  • 63fcdb48a Make addrman use its local RNG exclusively (Pieter Wuille)
  • 58be83a48 Fix FreeBSD build by including utilstrencodings.h (Wladimir J. van der Laan)
  • e4fb4e0b7 Make FastRandomContext support standard C++11 RNG interface (Pieter Wuille)
  • 0f4e31059 Minimal code changes to allow msvc compilation. (Aaron Clauson)
  • a5f86d49b Use nullptr instead of the macro NULL in random.cpp (Andrea Suisani)
  • d73104ec9 Check if sys/random.h is required for getentropy on OSX. (James Hilliard)
  • 55f72968b random: only use getentropy on openbsd (Cory Fields)
  • 2961e8d48 Clarify entropy source (Pieter Wuille)
  • 0742c908e Use cpuid intrinsics instead of asm code (Pieter Wuille)
  • 99832ee4b random: fix crash on some 64bit platforms (Cory Fields)
  • 7d679eb11 Add RandAddSeedSleep (Matt Corallo)
  • 789c5076e Add internal method to add new random data to our internal RNG state (Matt Corallo)
  • 993c646e7 Maintain state across GetStrongRandBytes calls (Pieter Wuille)
  • 04b8c30f2 Use sanity check timestamps as entropy (Pieter Wuille)
  • bc265ff00 Test that GetPerformanceCounter() increments (Pieter Wuille)
  • 9260157f2 Use hardware timestamps in RNG seeding (Pieter Wuille)
  • aaea4badc Add attribute [[noreturn]] (C++11) to functions that will not return (practicalswift)
  • 6c74b4489 Fix resource leak (Dag Robole)
  • eee0f220a Use rdrand as entropy source on supported platforms (Pieter Wuille)
  • 1338d1cad scripted-diff: Use new naming style for insecure_rand* functions (Pieter Wuille)
  • 0947c5117 scripted-diff: Use randbits/bool instead of randrange where possible (Pieter Wuille)
  • be6dd066a Use randbits instead of ad-hoc emulation in prevector tests (Pieter Wuille)
  • 574f88313 Replace rand() & ((1 << N) - 1) with randbits(N) (Pieter Wuille)
  • b4e4e868d Make CScript (and prevector) c++11 movable. (Pieter Wuille)
  • 4ec35923c Replace more rand() % NUM by randranges (Pieter Wuille)
  • fe1ddf539 scripted-diff: use insecure_rand256/randrange more (Pieter Wuille)
  • 285dedab3 Add various insecure_rand wrappers for tests (Pieter Wuille)
  • feec3a9ee Merge test_random.h into test_bitcoin.h (Pieter Wuille)
  • af4f97bfd Deduplicate SignatureCacheHasher (Jeremy Rubin)
  • 233ad91f2 Add FastRandomContext::rand256() and ::randbytes() (Pieter Wuille)
  • c7aca8bcc Add a FastRandomContext::randrange and use it (Pieter Wuille)
  • 067932805 Switch FastRandomContext to ChaCha20 (Pieter Wuille)
  • 3d5ca18eb Add ChaCha20 (Wladimir J. van der Laan)
  • 8684152d7 Introduce FastRandomContext::randbool() (Pieter Wuille)
  • 3804487bf random: Add fallback if getrandom syscall not available (Wladimir J. van der Laan)
  • 4a8d6f2e9 sanity: Move OS random to sanity check function (Wladimir J. van der Laan)
  • 93891a7cd util: Specific GetOSRandom for Linux/FreeBSD/OpenBSD (Wladimir J. van der Laan)
  • 4c79f9c80 Don't use assert for catching randomness failures (Pieter Wuille)
  • 65d6e1eb7 Always require OS randomness when generating secret keys (Pieter Wuille)
  • ff4257007 Build cashlib only on linux (#2115) (Andrea Suisani)
  • d6ba937f8 update all seenLockOrder maps when a new lock is seen (#2110) (Griffith)
  • 91e517e8d No need to explicitly add SCRIPT_ENABLE_CHECKDATASIG (Andrea Suisani)
  • 9017b387b Fix a comment minimaldata.py python test (Andrea Suisani)
  • 857709dbd Remove SCRIPT_VERIFY_MINIMALDATA from the set of standard flags (Andrea Suisani)
  • 809ae618c add SCHNORR_MULTISIG to mandatory flags (Mark Lundeberg)
  • b0a361c35 add SCRIPT_VERIFY_MINIMALDATA to mandatory flags (Mark Lundeberg)
  • 55c9080a3 Reformat MANDATORY_SCRIPT_VERIFY_FLAGS and add clang-format exception (Andrea Suisani)
  • ede381402 drop 'check3' upgrade-conditional-script-failure for Schnorr multisig (Mark Lundeberg)
  • 68c606212 Sync cashlib python test data structure with C++ ones (Andrea Suisani)
  • 4657a0ea6 Make more script validation flags backward compatible (Mark Lundeberg)
  • a90e9bfc5 Remove NULLDUMMY (Mark Lundeberg)
  • 34aedc8a2 [travis] remove BU special casing to avoid exiting before the timeout (Andrea Suisani)
  • 383e66837 [Minor enhancement] Startup txindex after ActivateBestChain (#2094) (Andrew Stone)
  • 8d2a872ee Remove handling for xthin versions < 2 (Peter Tschipper)
  • 3ec2a3195 Update the name tweak used to set/change network upgrade time (Andrea Suisani)
  • 908e53caf [travis] Give more time to run unit tests (#2108) (Andrea Suisani)
  • 54e7b210e Add opcodes_tests.cpp to .formatted_files (#2106) (Andrea Suisani)
  • 1ffdf7bb2 clean up some deadlock detector code (#2103) (Griffith)
  • 956270cdb replace multimaps with safer datastructures (#2084) (Griffith)
  • 2cd680d67 Bump version to 1.8 (#2101) (Andrea Suisani)
  • 9166b7513 Fix edge case in request manager (#2102) (Peter Tschipper)
  • c8d847819 A few IBD tweaks (#2050) (Peter Tschipper)
  • c9da8e332 Remove bitprim seeders (#2099) (Andrea Suisani)
  • f78ac9e52 Run excessive.py again in our QA test suites (#2091) (Andrea Suisani)
  • 859d73737 dont fetch coin from view 3 times when one will do. (#2093) (Griffith)
  • 64287c668 Up the reserved diskspace in CheckDiskSpace() to 100MB (#2095) (Peter Tschipper)
  • 03ee02fe1 Remove EC for sigops (#2097) (Peter Tschipper)
  • a0d44f971 remove unused state param from updatecoins and spendcoins (#2092) (Griffith)
  • 57f5d3256 [travis] Remove constraints on build time for dependencies and… (#2096) (Andrea Suisani)
  • 05298181a Change Nov 2019 net upgrade activation to be height based (#2098) (Andrea Suisani)
  • 531027bcf Better performance for checking p2sh sigops (#2089) (Peter Tschipper)
  • 323a0de80 Mention you need --allow-modified to build ElectrsCash from a… (#2085) (Andrea Suisani)
  • 87c8f91e9 Update univalue subtree (#2086) (Andrea Suisani)
  • 9ef026890 Add graphene recovery messages to the priority queue (#2087) (Peter Tschipper)
  • 4c14dd8f7 Implement a release mode action for DbgAssert in `getchaintxsta… (#2090) (Andrea Suisani)
  • 6403cd77c [port][rpc] Add getchaintxstats and uptime RPC calls (#2070) (Andrea Suisani)
  • 0ace937dc Increase the second timeout slightly (from 2K to 2.1K) (Andrea Suisani)
  • e9357ecf5 Reduce time threshold to force travis to save cache and abort (Andrea Suisani)
  • 03711bafb Update travis.yml according to travis backend errors and warns (Andrea Suisani)
  • 06ab9708e Failure recovery for Graphene (#2030) (bissias)
  • a70bb86ae Do not reset the pblock smart pointer when clearing data (#2083) (Peter Tschipper)
  • 66e5d69c5 fix issue allowing the creation of duplicate reconstruct templa… (#2082) (Griffith)
  • b3367b729 Don't add more than one unique thintype block in flight (#2081) (Peter Tschipper)
  • 3471f8bf1 Update to Graphene spec for changes in v2.2 (#2055) (bissias)
  • 16df85df7 Speed up the loading of the block index (#2078) (Peter Tschipper)
  • 1a7454a6b [qa] Add -electrum-only filter (Dagur Valberg Johannsson)
  • 05f46d973 [qa] Add test for server.features (Dagur Valberg Johannsson)
  • 74556246b [electrum] Tests for 'blockchain.transaction.get' (Dagur Valberg Johannsson)
  • 526480bec [electrum] More debug info in getelectruminfo (Dagur Valberg Johannsson)
  • 5f2f59402 [qa] Test for tx chain with same scripthash (Dagur Valberg Johannsson)
  • b95feae7f [qa] Test for electrum.blockchain.get_history (Dagur Valberg Johannsson)
  • 9a0d738df [qa] Allow passing prev as hexstr in create_block (Dagur Valberg Johannsson)
  • 65f54d8e5 [qa] Electrum helper functions (Dagur Valberg Johannsson)
  • cc264d5af Add a test for node eviction (Peter Tschipper)
  • 752676174 fix ordering in compare_exchange_weak (Peter Tschipper)
  • 257428c58 [electrum] Add test for unknown method (#2071) (dagurval)
  • 7083533e5 GetTransaction improvements (#2068) (dagurval)
  • 47a4195bb Cleanup inactivity checking (Peter Tschipper)
  • 3e1825327 Add the rest of the GUARDED_BY statements in CNode (Peter Tschipper)
  • 1a9e16bb2 Add a few more atomic vars in CNode (Peter Tschipper)
  • d6ae22005 In CNode make nActivityBytes atomic (Peter Tschipper)
  • 7eedf9b2d [Giga-Net:] Add a priority queue for urgent message processing (#1721) (Peter Tschipper)
  • 07cd800da Add Nov 15th 2019 checkpoints for mainnet and testnet (#2053) (Andrea Suisani)
  • db9cfdf6c Build latest electrscash (#2069) (Andrew Stone)
  • d3f106aa2 Get the subver string earlier when we track inbound connections (#2063) (Peter Tschipper)
  • 603763ade Use BU BCH ppa repository as Berkely DB packages provider (#2065) (Andrea Suisani)
  • 828bd1c93 [gui] Fix input validation for traffic shaping parameters (#2061) (Andrea Suisani)
  • a9c8f9234 Update copyright year to 2020 (#2058) (Marius Kjærstad)
  • e77ae4aea Update ElectrsCash build instruction to take into account binary rename (#2062) (Andrea Suisani)
  • 43d4c7d44 Do not ban a peer for sending a null hash with inv - just ignore instead (#2060) (Peter Tschipper)
  • 191462975 Fix a warning in cashlib.cpp (#2054) (Andrea Suisani)
  • a763bc65a Implement two more ban reason codes (#2052) (Peter Tschipper)
  • 441ba0b5c Don't run CheckBlock() more than once during IBD (#2057) (Peter Tschipper)
  • a777c7412 fix cashlib decodebase64 error return (#2056) (Andrew Stone)
  • 21aaee43b Turn off PV for compactblocks_2.py (#2051) (Peter Tschipper)
  • 87c065d9c [Requires #2020] Don't make copies of CTxMemPoolEntry's in RemoveForBlock() (#2042) (Peter Tschipper)
  • 0e4b5e6f1 Improve block post processing from O(n^2) to O(n) (#2020) (Peter Tschipper)
  • 22d2124bc Reduce txadmission ancestor chain parsing by roughly 50% for long ch… (#2032) (Peter Tschipper)
  • c040c70f9 Clarify comments in CalculateMemPoolAncestors when looking up p… (#2043) (Peter Tschipper)
  • 7bddccaf1 Reduce the retry inteval during IBD (#2049) (Peter Tschipper)
  • 0284d3d07 Improve performance of blocksdb during IBD (#2044) (Peter Tschipper)
  • 9a13c5588 Make the ban reason visible in the QT Banned Peers table (#2048) (Peter Tschipper)
  • 5b1b7fd3e don't send inv for mempool sync objects (#2046) (bissias)
  • b8be44170 Start pruning slow peers before we get to the max outbound connections (#2047) (Peter Tschipper)
  • c453bd169 Flush the blockindex at regular intervals during IBD (#2045) (Peter Tschipper)
  • 2a4893d6a do not use smart pointer references (#2039) (Peter Tschipper)
  • f81673204 Do not std::move(ptx) when passing a parameter (#2040) (Peter Tschipper)
  • 2c979f466 enhance the hd44 derivation code to handle 64 byte master seeds (#2041) (Andrew Stone)
  • fdfcd42a6 Improve MatchFreezeCLTV() according to gandrewstone feedback (Andrea Suisani)
  • 532448906 Fix a typo in MatchFreezeCLTV() (Andrea Suisani)
  • 2cdd07014 Introduce PUBLIC_KEY_HASH160_SIZE and use it in standard.cpp (Andrea Suisani)
  • b3e587dce Remove template matching and pseudo opcodes (Pieter Wuille)
  • 18d96c4b3 Minor nits in Xversion doc and comments (#2038) (Andrea Suisani)
  • d93350541 [Electrum] Flag electrum server in xversion (#2037) (dagurval)
  • 4ff005ad4 Port wallet optimizations from old coinselection branch. (Andrew Stone)
  • aa24d86bc Improve schorrsig.py reliability (Peter Tschipper)
  • 4a6083709 Improve reliability of compactblocks_2.py (Peter Tschipper)
  • bd1899f38 Do not process any more blocks if shutdown is requested (Peter Tschipper)
  • 3b6ec3384 Add ./autogen.sh and mention installing curl. (Søren Bredlund Caspersen)
  • a1fb38d07 scanelf needs the right binary file (Søren Bredlund Caspersen)
  • 92c2bd9f8 Remove boost build instructions. (Søren Bredlund Caspersen)
  • a0cb8e9d2 add patch to BDB build instructions (Søren Bredlund Caspersen)
  • 3bb4f0785 Where to find bitcoin-qt (Søren Bredlund Caspersen)
  • bcd141c07 Set the mempoolminfee to be the max of either the minrelaytxfee (#2031) (Peter Tschipper)
  • df15489c1 Add git to list, update link (Søren Bredlund Caspersen)
  • 18c9ed435 net: Improve and document SOCKS code (Wladimir J. van der Laan)
  • 45c0c9a16 Do not run reomoveForBlock() if we are in initial sync (#2026) (Peter Tschipper)
  • f6d0c430d revert estimatesmartfee return obj for backwards compatibility (#2025) (Griffith)
  • 411a28c14 [QA only] Isolate QA features from PR #2022 (#2027) (Andrew Stone)
  • 09b83657f add flag to enable build against libstdc++ debug mode: https://gcc.gnu.org/onlinedocs/libstdc%2B%2B/manual/debug_mode_using.html (Andrew Stone)
  • 41aeb5bd9 Small changes for FreeBSD info (Søren Bredlund Caspersen)
  • 628871a21 Add freebsd build guide (Søren Bredlund Caspersen)
  • 6d32a59a7 Change preparations to dependencies (Søren B. Caspersen)
  • eb0dc4d6f Cleanup unix build instructions (Søren B. Caspersen)
  • 2c324a710 Make sure to lock cs_blockvalidationthread during the time (#2024) (Peter Tschipper)
  • af529ce8d Update OpenBSD build instructions (#2021) (Søren Bredlund Caspersen)
  • a3122f1b0 move SyncStorage to before we lock mapblock index (#1764) (Griffith)
  • f8047aa95 Fee estimater fix (#899) (Griffith)
  • 66af566b8 Wallet lock refactor and fixes (#2019) (Andrew Stone)
  • 0134f7307 Re-enable -limitfreerealy in our unit tests (Peter Tschipper)
  • 30bd0b463 [qa] Allow setting custom electrum bin path (Dagur Valberg Johannsson)
  • 455f7a1c9 Erase() the blockvalidation thread id as the very last step (Peter Tschipper)
  • b371fd5b2 Trivial: Fix DbgAssert that would never fail (Justaphf)
  • 9f9f6a818 Replace missing ClearCompactBlockStats() (Peter Tschipper)
  • 78471be47 expose the bloom filter capacity to the java layer so that blooms can be created with a larger capacity than elements under the expectation that they will be filled later (Andrew Stone)
  • 39149a188 Add missing lock to IsBlockInFlight() (Peter Tschipper)
  • 97604a198 Cleanup requestmanager_tests.cpp (Peter Tschipper)
  • 5792eb060 Add tests for multi thintype blocks in flight (Peter Tschipper)
  • 31f50b99d Enable multi thintype blocks in flight (Peter Tschipper)
  • 0d9b29263 #1992 Fix -Wsign-compare warnings in Qt tx graph widget (Justaphf)
  • faa99af26 Avoid initial package accounting if transaction is alredy in the block (Andrea Suisani)
  • 73c5e4be0 [qa] Add subscription tests for electrum server (Dagur Valberg Johannsson)
  • d11782b24 Add missing message types to allNetMessages[] (#2005) (Peter Tschipper)
  • e569de222 Add a description as to why we sort by time for ancestor transactions (#2003) (Peter Tschipper)
  • 7171a7ca1 add java cashlib APIs to access existing merkle block tx extractor (Andrew Stone)
  • 07a25437c Makes getLabelPublic() to work with string longer than 16 chars (#1988) (Andrea Suisani)
  • b56e8bcc2 [gitian] Strip electrcash binary before installing (#1979) (Andrea Suisani)
  • 841311512 Set the default behaviour of -limitfreerelay to zero (#2001) (Peter Tschipper)
  • a5911cf49 Fix mempool sync bug (#1994) (bissias)
  • 610c16a4c Another pass to use c++11 nullptr across the codebase when appropriate (#1995) (Andrea Suisani)
  • 40c4e570d [qa] Use connectrum in QA tests (Dagur Valberg Johannsson)
  • 0f86808f8 [qa] Add connectrum electrum library (Dagur Valberg Johannsson)
  • 3fde26ccc Change the reject message from too-many-inputs to bad-txn-too-many-inputs (Peter Tschipper)
  • 7f4282cc5 Fix mempool_push.py to work with restrictInputs (Peter Tschipper)
  • cd8a62a4d Add the reject reason to some of the other tests in this suite (Peter Tschipper)
  • b003d2107 Add tweak and logic for rejecting txns that have too many inputs (Peter Tschipper)
  • 116419adf fix an undefined behavior in uint::SetHex (Kaz Wesley)
  • 9c7cd812e update APIs to pass the blockchain identifier to address encode and decode functions, allowing cashlib to easily handle regtest, testnet and mainnet addresses. rename throwIllegalState and AddrBlockchainUnlimited for clarity (Andrew Stone)
  • f688d0c3d Improve IBD when pruning (Peter Tschipper)
  • fa0ab2944 Add limitfreerelay to getnetworkinfo() (Peter Tschipper)
  • 2adf6298a Add readlock when accessing nSequenceId (Peter Tschipper)
  • d2ce4cc01 Remove giving DOS points for unknown inv types (Peter Tschipper)
  • 157125633 Take out calls to RemoveForReorg() (Peter Tschipper)
  • 9378b76d6 Add a warming about txindex database migration process to 1.7 rel notes (Andrea Suisani)
  • ef4dc8da9 Add URL for ElectrsCash changelog to the release notes for 1.7.0 (Andrea Suisani)
  • 59e2eea86 Fix computation for smoothed runtime TPS statistic (Justaphf)
  • 509ac8274 Force the log to flush before checking the log for entries (Peter Tschipper)

Credits

Thanks to everyone who directly contributed to this release:

  • Andrea Suisani
  • Andrew Stone
  • George Bissias
  • Dagur Valberg Johannsson
  • Greg-Griffith
  • Justaphf
  • Søren Bredlund Caspersen
  • Peter Tschipper

We have backported an amount of changes from other projects, namely Bitcoin Core, BCHN and Bitcoin ABC.

Following all the indirect contributors whose work has been imported via the above backports:

  • Aaron Clauson
  • Akio Nakamura
  • Amaury Séchet
  • Anthony Towns
  • Ben Woosley
  • Cory Fields
  • Dag Robole
  • Dan Raviv
  • Hennadii Stepanov
  • James Hilliard
  • Jeremy Rubin
  • Kaz Wesley
  • Lenny Maiorani
  • Luke Dashjr
  • Marius Kjærstad
  • Mark Lundeberg
  • Matt Corallo
  • Peter Tschipper
  • Pieter Wuille
  • practicalswift
  • tobiasruck
  • Wladimir J. van der Laan