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November 17, 2018, 08:19:06 PM *
News: Latest Bitcoin Core release: 0.17.0 [Torrent].
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21  Bitcoin / Development & Technical Discussion / Re: What would the math be behind these claims? on: October 24, 2018, 01:39:13 PM
Even vanitygen can only do 500k/s with point addition(though we do include sha256 and ripemd160 hashing).
Vanitygen is pretty slow and does not used optimized key generation code. If you use an optimized library like libsecip256k1 (which is used in BItcoin Core), it can be much faster.
22  Bitcoin / Bitcoin Technical Support / Re: Negative Balance in RPC Accounts on: October 24, 2018, 01:35:08 PM
This is expected behavior with accounts. This is also one reason why you shouldn't use it.
23  Bitcoin / Bitcoin Technical Support / Re: Please Help! on: October 24, 2018, 04:10:31 AM
Be patient, there isn't anyone here can do about that. Transactions get an additional confirmation for every new block that is found that has the block containing your transaction in its history. As more blocks are found, the number of confirmations for your transaction will increase. There isn't anything that anybody about that, that's up to the miners to continue to produce blocks. There isn't anything special that needs to be done to get more confirmations. The confirmations will come, just be patient for more blocks to be mined.
24  Bitcoin / Development & Technical Discussion / Re: Bitcoin core watchonly address 2 of 2 on: October 23, 2018, 10:53:45 PM
createmultisig does not add the multisig address's redeemScript to your wallet. You need to use addmultisigaddress for that or import it with importmulti.
25  Bitcoin / Development & Technical Discussion / Re: can't get the same publickey for c and nodejs on: October 23, 2018, 03:07:09 PM
for my c code (use secp256k1 directly from bitcoin core)  

 unsigned char ctmp[]={0x79,0x54,0x55,0x9D,0xE4,0x26,0xCB,0x23,0x8C,0x9A,0x8A,0x2E,0x45,0x3C,0x75,0x8C,0xCA,0xD9,0x17,0xE1,0xF4,0x66,0x79,0x2A,0x51,0x66,0xEB,0xED,0x59,0x32,0x0F,0x6F};

     secp256k1_context *vrfy = secp256k1_context_create(SECP256K1_CONTEXT_VERIFY | SECP256K1_CONTEXT_SIGN);
secp256k1_ec_pubkey_create(vrfy, &pubkey, &ctmp)
and print it out get  0xBB,0x19,0xAB,0xD0,0x74,0xD4,0xA2,0xFE,0x21,0xC9,0xFA,0x3E,0x4E,0x8C,0x46,0x81,0xC3,0x75,0x80,0xE2,0xF3,0x1B,0x3E,0x3D,0xE7,0xC6,0xF9,0xDD,0x44,0x47,0xAD,0xC0,0x36,0xC5,0x03,0x7E,0x3D,0x29,0x2B,0x10,0xBC,0x1B,0x11,0x73,0x55,0xF8,0xE4,0x69,0xB9,0xB6,0x4B,0xCD,0xC9,0xD9,0xD1,0x5D,0xE9,0x13,0x20,0x65,0xF2,0x72,0x3C,0xD6
How are you printing this out? If you are just printing the pubkey object without serializing it, then that is obviously wrong.

If you look closely, you'll notice that 0xBB,0x19,0xAB,0xD0,0x74,0xD4,0xA2,0xFE,0x21,0xC9,0xFA,0x3E,0x4E,0x8C,0x46,0x81,0xC3,0x75,0x80,0xE2,0xF3,0x1B,0x3E,0x3D,0xE7,0xC6,0xF9,0xDD,0x44,0x47,0xAD,0xC0 is the first half of the pubkey that you got from node.js, but with the bytes reversed. Further, 0x36,0xC5,0x03,0x7E,0x3D,0x29,0x2B,0x10,0xBC,0x1B,0x11,0x73,0x55,0xF8,0xE4,0x69,0xB9,0xB6,0x4B,0xCD,0xC9,0xD9,0xD1,0x5D,0xE9,0x13,0x20,0x65,0xF2,0x72,0x3C,0xD6 is the second half of the pubkey, again with the bytes reversed. This will happen if you are just inspecting (or printing) the secp pubkey object itself since internal byte order is not the same as the byte order when actually serialized.
26  Bitcoin / Development & Technical Discussion / Re: Please, help with bitcoin core on: October 23, 2018, 03:04:08 PM
But getnewaddress creates address based on one account. And I need separation between two wallets(accounts)-30% to hot wallet, 70% to cold.
An address is not a program, it can't forward anything automagically. You will need to have something that waits for transactions to that address and creates the forwarding transaction for you. You can do this by using -walletnotify.
27  Bitcoin / Development & Technical Discussion / Re: Bitcoin core watchonly address 2 of 2 on: October 23, 2018, 03:02:15 PM
What exactly is your question?
28  Bitcoin / Development & Technical Discussion / Re: Please, help with bitcoin core on: October 23, 2018, 04:20:04 AM
1. Create bitcoin address which forwards 30% send to it to hot wallet, other 70% to cold wallet.

2. Send bitcoins from wallet(hotwallet) to other users.
Use sendmany to send to multiple recipients

3. When user paid to address created, send notification to callback_handler.
You can start Bitcoin Core with the -walletnotify=<cmd> option where <cmd> is a command (i.e. a script) that Bitcoin Core will execute when a transaction is received. Read the help text (start with -help) for more information.
29  Bitcoin / Development & Technical Discussion / Re: HD Key Derivation Help on: October 18, 2018, 05:01:34 AM
I have implemented public BIP 32 derivation in a project of mine, you can look at the implementation here: The function that does the derivation is CKDpub and it takes as arguments: the parent public key as bytes, the parent chaincode as bytes, and the index of the child to derive as an integer.

It will only derive a child key at a particular index. You can derive keys at paths by using a loop to derive the child at each step in the path until you get to the final child.

If all you need is public derivation, then you can use that code. It is provided under the MIT license.
30  Bitcoin / Development & Technical Discussion / Re: how to include secp256k1 on: October 13, 2018, 07:09:16 PM
bitcoin-tx.cpp does not directly use anything in secp256k1 but it does directly use things in UniValue. Thus it does not need to include secp256k1. secp256k1 is included in other files where it is directly used.
31  Bitcoin / Bitcoin Technical Support / Re: Why is my password visible in the console and not hidden by asterisk? on: October 12, 2018, 12:19:38 AM
When i want to dump my privkey i have to put in my password but why is it visible and not hidden by asterisk?
In what software? Bitcoin Core?

If you are talking about Bitcoin Core, the password is hidden once it is entered. It is not shown in the history. If you are talking about why it shows when you are typing the walletpassphrase command, that is because the console does not know what is your password and what isn't as it does not interpret whatever is written in that box. It only interprets once the command is entered.
32  Bitcoin / Development & Technical Discussion / Re: how is "s" kept as an integer in ECDSA? on: October 10, 2018, 12:48:27 AM
The integer operations are modulo n. So yes, the inverse of an integer a mod n is a number b = a^-1 mod n such that a * b = 1 mod n.

There are efficient algorithms for finding such an inverse which is why ECDSA (and other cryptosystems) can use inverses modulo n.
33  Bitcoin / Development & Technical Discussion / Re: Lightning network possible attack? on: October 08, 2018, 09:39:42 AM
The breach remedy is sufficient because it does not rely on unconfirmed transactions. It uses a relative locktime which actually requires inclusion in a block to work.
34  Bitcoin / Development & Technical Discussion / Re: [Discussion] Dandelion - A protocol to hide transaction origin on: October 03, 2018, 09:10:31 PM
For instance, look at the "coin join" idea - it is at least 6 years old.
But still today the best and only reliable way to anonymize your coins is to push them through a tor mixer service.
Because nobody wants to put his head on providing such services. Or even developing the technology.
CoinJoins and Tor achieve two completely different kinds of anonymity. They are orthogonal to each other. You cannot compare them.

The point of Dandelion is to have privacy by default. It is built into the P2P protocol. Users get privacy without having to think about privacy. OTOH, both Tor and CoinJoins require the user to actively think about and care about their own privacy. That means that most users aren't going to do those things because they don't think about or care about their privacy.

I just use any of the send transaction web pages:
Good for you. The vast majority of users aren't going to do that because they aren't aware of the privacy implications as you are. The whole reason something like Dandelion is being proposed is to get Privacy into the network protocol itself so that users who don't care about privacy still get privacy anyways.

Oh, I thought aggregating signatures helped with privacy.  Or is that only really effective for multisig transactions?
Schnorr signatures by themselves do not do anything for privacy. But they do allow for things like Taproot and some kinds of multisigs which are better for privacy. But it also depends on what kind of privacy you are talking about because even with those things, people can still know which outputs are yours and how much you are receiving. Furthermore, it does nothing to help with anonymizing the IP address source of a transaction (which is what Dandelion does).
35  Bitcoin / Development & Technical Discussion / Re: [Discussion] Dandelion - A protocol to hide transaction origin on: October 03, 2018, 05:35:48 PM
IMHO the technology to hide transaction origin was invented long time ago and by now it is quite advanced already.

Except that it isn't called Dandelion, but Tor.

Why to invent the wheel for the second time?
As mentioned earlier, Bitcoin shouldn't need to rely on an external service in order to have privacy. Privacy should be built into the protocol itself. Using Tor requires having Tor available on your machine and special configuring which most users won't do. However Dandelion is built into the Bitcoin P2P protocol itself so users don't need to do any special configuration to get it to work, the software just works out of the box.
36  Bitcoin / Bitcoin Discussion / Re: Bitcoin Core 0.16.3 Released on: October 03, 2018, 01:27:46 PM
Bitcoin Core 0.17.0 has been released
37  Bitcoin / Bitcoin Discussion / Re: Bitcoin Core 0.17.0 Released on: October 03, 2018, 01:24:40 PM
0.17.0 change log

### Consensus
- #12204 `3fa24bb` Fix overly eager BIP30 bypass (morcos)

### Policy
- #12568 `ed6ae80` Allow dustrelayfee to be set to zero (luke-jr)
- #13120 `ca2a233` Treat segwit as always active (MarcoFalke)
- #13096 `062738c` Fix `MAX_STANDARD_TX_WEIGHT` check (jl2012)

### Mining
- #12693 `df529dc` Remove unused variable in SortForBlock (drewx2)
- #12448 `84efa9a` Interrupt block generation on shutdown request (promag)

### Block and transaction handling
- #12225 `67447ba` Mempool cleanups (sdaftuar)
- #12356 `fd65937` Fix 'mempool min fee not met' debug output (Empact)
- #12287 `bf3353d` Optimise lock behaviour for GuessVerificationProgress() (jonasschnelli)
- #11889 `47a7666` Drop extra script variable in ProduceSignature (ryanofsky)
- #11880 `d59b8d6` Stop special-casing phashBlock handling in validation for TBV (TheBlueMatt)
- #12431 `947c25e` Only call NotifyBlockTip when chainActive changes (jamesob)
- #12653 `534b8fa` Allow to optional specify the directory for the blocks storage (jonasschnelli)
- #12172 `3b62a91` Bugfix: RPC: savemempool: Don't save until LoadMempool() is finished (jtimon)
- #12167 `88430cb` Make segwit failure due to `CLEANSTACK` violation return a `SCRIPT_ERR_CLEANSTACK` error code (maaku)
- #12561 `24133b1` Check for block corruption in ConnectBlock() (sdaftuar)
- #11617 `1b5723e` Avoid lock: Call FlushStateToDisk() regardless of fCheckForPruning (practicalswift)
- #11739 `0a8b7b4` Enforce `SCRIPT_VERIFY_P2SH` and `SCRIPT_VERIFY_WITNESS` from genesis (sdaftuar)
- #12885 `a49381d` Reduce implementation code inside CScript (sipa)
- #13032 `34dd1a6` Output values for "min relay fee not met" error (kristapsk)
- #13033 `a07e8ca` Build txindex in parallel with validation (jimpo)
- #13080 `66cc47b` Add compile time checking for ::mempool.cs runtime locking assertions (practicalswift)
- #13185 `08c1caf` Bugfix: the end of a reorged chain is invalid when connect fails (sipa)
- #11689 `0264836` Fix missing locking in CTxMemPool::check() and CTxMemPool::setSanityCheck() (practicalswift)
- #13011 `3c2a41a` Cache witness hash in CTransaction (MarcoFalke)
- #13191 `0de7cc8` Specialized double-SHA256 with 64 byte inputs with SSE4.1 and AVX2 (sipa)
- #13243 `ea263e1` Make reusable base class for auxiliary indices (jimpo)
- #13393 `a607d23` Enable double-SHA256-for-64-byte code on 32-bit x86 (sipa)
- #13428 `caabdea` validation: check the specified number of blocks (off-by-one) (kallewoof)
- #13438 `450055b` Improve coverage of SHA256 SelfTest code (sipa)
- #13431 `954f4a9` validation: count blocks correctly for check level < 3 (kallewoof)
- #13386 `3a3eabe` SHA256 implementations based on Intel SHA Extensions (sipa)
- #11658 `9a1ad2c` During IBD, when doing pruning, prune 10% extra to avoid pruning again soon after (luke-jr)
- #13794 `8ce55df` chainparams: Update with data from assumed valid chain (MarcoFalke)
- #13527 `e7ea858` Remove promiscuousmempoolflags (MarcoFalke)

### P2P protocol and network code
- #12342 `eaeaa2d` Extend #11583 ("Do not make it trivial for inbound peers to generate log entries") to include "version handshake timeout" message (clemtaylor)
- #12218 `9a32114` Move misbehaving logging to net logging category (laanwj)
- #10387 `5c2aff8` Eventually connect to `NODE_NETWORK_LIMITED` peers (jonasschnelli)
- #9037 `a36834f` Add test-before-evict discipline to addrman (EthanHeilman)
- #12622 `e1d6e2a` Correct addrman logging (laanwj)
- #11962 `0a01843` add to DNS seeds (Sjors)
- #12569 `23e7fe8` Increase signal-to-noise ratio in debug.log by adjusting log level when logging failed non-manual connect():s (practicalswift)
- #12855 `c199869` Minor accumulated cleanups (tjps)
- #13153 `ef46c99` Add missing newlines to debug logging (laanwj)
- #13162 `a174702` Don't incorrectly log that REJECT messages are unknown (jnewbery)
- #13151 `7f4db9a` Serve blocks directly from disk when possible (laanwj)
- #13134 `70d3541` Add option `-enablebip61` to configure sending of BIP61 notifications (laanwj)
- #13532 `7209fec` Log warning when deprecated network name 'tor' is used (wodry)
- #13615 `172f984` Remove unused interrupt from SendMessages (fanquake)
- #13417 `1e90862` Tighten scope in `net_processing` (skeees)
- #13298 `f8d470e` Bucketing INV delays (1 bucket) for incoming connections to hide tx time (naumenkogs)
- #13672 `0d8d6be` Modified `in_addr6` cast in CConman class to work with msvc (sipsorcery)
- #11637 `c575260` Remove dead service bits code (MarcoFalke)
- #13212 `a6f00ce` Fixed a race condition when disabling the network (lmanners)
- #13656 `1211b15` Remove the boost/algorithm/string/predicate.hpp dependency (251Labs)
- #13423 `f58674a` Thread safety annotations in `net_processing` (skeees)
- #13776 `7d36237` Add missing verification of IPv6 address in CNetAddr::GetIn6Addr() (practicalswift)
- #13907 `48bf8ff` Introduce a maximum size for locators (gmaxwell)
- #13951 `8a9ffec` Hardcoded seeds update pre-0.17 branch (laanwj)

### Wallet
- #12330 `2a30e67` Reduce scope of `cs_main` and `cs_wallet` locks in listtransactions (promag)
- #12298 `a1ffddb` Refactor HaveKeys to early return on false result (promag)
- #12282 `663911e` Disallow abandon of conflicted txes (MarcoFalke)
- #12333 `d405bee` Make CWallet::ListCoins atomic (promag)
- #12296 `8e6f9f4` Only fee-bump non-conflicted/non-confirmed txes (MarcoFalke)
- #11866 `6bb9c13` Do not un-mark fInMempool on wallet txn if ATMP fails (TheBlueMatt)
- #11882 `987a809` Disable default fallbackfee on mainnet (jonasschnelli)
- #9991 `4ca7c1e` listreceivedbyaddress Filter Address (NicolasDorier)
- #11687 `98bc27f` External wallet files (ryanofsky)
- #12658 `af88094` Sanitize some wallet serialization (sipa)
- #9680 `6acd870` Unify CWalletTx construction (ryanofsky)
- #10637 `e057589` Coin Selection with Murch's algorithm (achow101, Xekyo)
- #12408 `c39dd2e` Change output type globals to members (MarcoFalke)
- #12694 `9552dfb` Actually disable BnB when there are preset inputs (achow101)
- #11536 `cead84b` Rename account to label where appropriate (ryanofsky)
- #12709 `02b7e83` shuffle sendmany recipients ordering (instagibbs)
- #12699 `c948dc8` Shuffle transaction inputs before signing (instagibbs)
- #10762 `6d53663` Remove Wallet dependencies from init.cpp (jnewbery)
- #12857 `821980c` Avoid travis lint-include-guards error (ken2812221)
- #12702 `dab0d68` importprivkey: hint about importmulti (kallewoof)
- #12836 `9abdb7c` Make WalletInitInterface and DummyWalletInit private, fix nullptr deref (promag)
- #12785 `215158a` Initialize `m_last_block_processed` to nullptr (practicalswift)
- #12932 `8d651ae` Remove redundant lambda function arg in handleTransactionChanged (laanwj)
- #12749 `a84b056` feebumper: discard change outputs below discard rate (instagibbs)
- #12892 `9b3370d` introduce 'label' API for wallet (jnewbery)
- #12925 `6d3de17` Logprint the start of a rescan (jonasschnelli)
- #12888 `39439e5` debug log number of unknown wallet records on load (instagibbs)
- #12977 `434150a` Refactor `g_wallet_init_interface` to const reference (promag)
- #13017 `65d7083` Add wallets management functions (promag)
- #12953 `d1d54ae` Deprecate accounts (jnewbery)
- #12909 `476cb35` Make fee settings to be non-static members (MarcoFalke)
- #13002 `487dcbe` Do not treat bare multisig outputs as IsMine unless watched (sipa)
- #13028 `783bb64` Make vpwallets usage thread safe (promag)
- #12507 `2afdc29` Interrupt rescan on shutdown request (promag)
- #12729 `979150b` Get rid of ambiguous OutputType::NONE value (ryanofsky)
- #13079 `5778d44` Fix rescanblockchain rpc to properly report progress (Empact)
- #12560 `e03c0db` Upgrade path for non-HD wallets to HD (achow101)
- #13161 `7cc1bd3` Reset BerkeleyDB handle after connection fails (real-or-random)
- #13081 `0dec5b5` Add compile time checking for `cs_wallet` runtime locking assertions (practicalswift)
- #13127 `19a3a9e` Add Clang thread safety annotations for variables guarded by `cs_db` (practicalswift)
- #10740 `4cfe17c` `loadwallet` RPC - load wallet at runtime (jnewbery)
- #12924 `6738813` Fix hdmaster-key / seed-key confusion (scripted diff) (jnewbery)
- #13297 `d82c5d1` Fix incorrect comment for DeriveNewSeed (jnewbery)
- #13063 `6378eef` Use shared pointer to retain wallet instance (promag)
- #13142 `56fe3dc` Separate IsMine from solvability (sipa)
- #13194 `fd96d54` Remove template matching and pseudo opcodes (sipa)
- #13252 `c4cc8d9` Refactor ReserveKeyFromKeyPool for safety (Empact)
- #13058 `343d4e4` `createwallet` RPC - create new wallet at runtime (jnewbery)
- #13351 `2140f6c` Prevent segfault when sending to unspendable witness (MarcoFalke)
- #13060 `3f0f394` Remove getlabeladdress RPC (jnewbery)
- #13111 `000abbb` Add unloadwallet RPC (promag)
- #13160 `868cf43` Unlock spent outputs (promag)
- #13498 `f54f373` Fixups from account API deprecation (jnewbery)
- #13491 `61a044a` Improve handling of INVALID in IsMine (sipa)
- #13425 `028b0d9` Moving final scriptSig construction from CombineSignatures to ProduceSignature (PSBT signer logic) (achow101)
- #13564 `88a15eb` loadwallet shouldn't create new wallets (jnewbery)
- #12944 `619cd29` ScanforWalletTransactions should mark input txns as dirty (instagibbs)
- #13630 `d6b2235` Drop unused pindexRet arg to CMerkleTx::GetDepthInMainChain (Empact)
- #13566 `ad552a5` Fix get balance (jnewbery)
- #13500 `4a3e8c5` Decouple wallet version from client version (achow101)
- #13712 `aba2e66` Fix non-determinism in ParseHDKeypath(). Avoid using an uninitialized variable in path calculation (practicalswift)
- #9662 `6b6e854` Add createwallet "disableprivatekeys" option: a sane mode for watchonly-wallets (jonasschnelli)
- #13683 `e8c7434` Introduce assertion to document the assumption that cache and cache_used are always set in tandem (practicalswift)
- #12257 `5f7575e` Use destination groups instead of coins in coin select (kallewoof)
- #13773 `89a116d` Fix accidental use of the comma operator (practicalswift)
- #13805 `c88529a` Correctly limit output group size (sdaftuar)
- #12992 `26f59f5` Add wallet name to log messages (PierreRochard)
- #13667 `b81a8a5` Fix backupwallet for multiwallets (domob1812)
- #13657 `51c693d` assert to ensure accuracy of CMerkleTx::GetBlocksToMaturity (Empact)
- #13812 `9d86aad` sum ancestors rather than taking max in output groups (kallewoof)
- #13876 `8eb9870` Catch `filesystem_error` and raise `InitError` (MarcoFalke)
- #13808 `13d51a2` shuffle coins before grouping, where warranted (kallewoof)
- #13666 `2115cba` Always create signatures with Low R values (achow101)
- #13917 `0333914` Additional safety checks in PSBT signer (sipa)
- #13968 `65e7a8b` couple of walletcreatefundedpsbt fixes (instagibbs)
- #14055 `2307a6e` fix walletcreatefundedpsbt deriv paths, add test (instagibbs)

### RPC and other APIs
- #12336 `3843780` Remove deprecated rpc options (jnewbery)
- #12193 `5dc00f6` Consistently use UniValue.pushKV instead of push_back(Pair()) (karel-3d) (MarcoFalke)
- #12409 `0cc45ed` Reject deprecated reserveChangeKey in fundrawtransaction (MarcoFalke)
- #10583 `8a98dfe` Split part of validateaddress into getaddressinfo (achow101)
- #10579 `ffc6e48` Split signrawtransaction into wallet and non-wallet RPC command (achow101)
- #12494 `e4ffcac` Declare CMutableTransaction a struct in rawtransaction.h (Empact)
- #12503 `0e26591` createmultisig no longer takes addresses (instagibbs)
- #12083 `228b086` Improve getchaintxstats test coverage (promag)
- #12479 `cd5e438` Add child transactions to getrawmempool verbose output (conscott)
- #11872 `702e8b7` createrawtransaction: Accept sorted outputs (MarcoFalke)
- #12700 `ebdf84c` Document RPC method aliasing (ryanofsky)
- #12727 `8ee5c7b` Remove unreachable help conditions in rpcwallet.cpp (lutangar)
- #12778 `b648974` Add username and ip logging for RPC method requests (GabrielDav)
- #12717 `ac898b6` rest: Handle utxo retrieval when ignoring the mempool (romanz)
- #12787 `cd99e5b` Adjust ifdef to avoid unreachable code (practicalswift)
- #11742 `18815b4` Add testmempoolaccept (MarcoFalke)
- #12942 `fefb817` Drop redundant testing of signrawtransaction prevtxs args (Empact)
- #11200 `5f2a399` Allow for aborting rescans in the GUI (achow101)
- #12791 `3a8a4dc` Expose a transaction's weight via RPC (TheBlueMatt)
- #12436 `6e67754` Adds a functional test to validate the transaction version number in the RPC output (251Labs)
- #12240 `6f8b345` Introduced a new `fees` structure that aggregates all sub-field fee types denominated in BTC (mryandao)
- #12321 `eac067a` p2wsh and p2sh-p2wsh address in decodescript (fivepiece)
- #13090 `17266a1` Remove Safe mode (achow101, laanwj)
- #12639 `7eb7076` Reduce `cs_main` lock in listunspent (promag)
- #10267 `7b966d9` New -includeconf argument for including external configuration files (kallewoof)
- #10757 `b9551d3` Introduce getblockstats to plot things (jtimon)
- #13288 `a589f53` Remove the need to include rpc/blockchain.cpp in order to put `GetDifficulty` under test (Empact)
- #13394 `e1f8dce` cli: Ignore libevent warnings (theuni)
- #13439 `3f398d7` Avoid "duplicate" return value for invalid submitblock (TheBlueMatt)
- #13570 `a247594` Add new "getzmqnotifications" method (domob1812)
- #13072 `b25a4c2` Update createmultisig RPC to support segwit (ajtowns)
- #12196 `8fceae0` Add scantxoutset RPC method (jonasschnelli)
- #13557 `b654723` BIP 174 PSBT Serializations and RPCs (achow101)
- #13697 `f030410` Support output descriptors in scantxoutset (sipa)
- #13927 `bced8ea` Use pushKV in some new PSBT RPCs (domob1812)
- #13918 `a9c56b6` Replace median fee rate with feerate percentiles in getblockstats (marcinja)
- #13721 `9f23c16` Bugfixes for BIP 174 combining and deserialization (achow101)
- #13960 `517010e` Fix PSBT deserialization of 0-input transactions (achow101)

### GUI
- #12416 `c997f88` Fix Windows build errors introduced in #10498 (practicalswift)
- #11733 `e782099` Remove redundant locks (practicalswift)
- #12426 `bfa3911` Initialize members in WalletModel (MarcoFalke)
- #12489 `e117cfe` Bugfix: respect user defined configuration file (-conf) in QT settings (jonasschnelli)
- #12421 `be263fa` navigate to  transaction history page after send (Sjors)
- #12580 `ce56fdd` Show a transaction's virtual size in its details dialog (dooglus)
- #12501 `c8ea91a` Improved "custom fee" explanation in tooltip (randolf)
- #12616 `cff95a6` Set modal overlay hide button as default (promag)
- #12620 `8a43bdc` Remove TransactionTableModel::TxIDRole (promag)
- #12080 `56cc022` Add support to search the address book (promag)
- #12621 `2bac3e4` Avoid querying unnecessary model data when filtering transactions (promag)
- #12721 `e476826` remove "new" button during receive-mode in addressbook (jonasschnelli)
- #12723 `310dc61` Qt5: Warning users about invalid-BIP21 URI bitcoin:// (krab)
- #12610 `25cf18f` Multiwallet for the GUI (jonasschnelli)
- #12779 `f4353da` Remove unused method setupAmountWidget() (practicalswift)
- #12795 `68484d6` do not truncate .dat extension for wallets in gui (instagibbs)
- #12870 `1d54004` make clean removes `src/qt/moc_` files (Sjors)
- #13055 `bdda14d` Don't log to console by default (laanwj)
- #13141 `57c57df` fixes broken link on readme (marcoagner)
- #12928 `ef006d9` Initialize non-static class members that were previously neither initialized where defined nor in constructor (practicalswift)
- #13158 `81c533c` Improve sendcoinsdialog readability (marcoagner)
- #11491 `40c34a0` Add proxy icon in statusbar (mess110)
- #13264 `2a7c53b` Satoshi unit (GreatSock)
- #13097 `e545503` Support wallets loaded dynamically (promag)
- #13284 `f8be434` fix visual "overflow" of amount input (brandonrninefive)
- #13275 `a315b79` use `[default wallet]` as name for wallet with no name (jonasschnelli)
- #13273 `3fd0c23` Qt/Bugfix: fix handling default wallet with no name (jonasschnelli)
- #13341 `25d2df2` Stop translating command line options (laanwj)
- #13043 `6e249e4` OptionsDialog: add prune setting (Sjors)
- #13506 `6579d80` load wallet in UI after possible init aborts (jonasschnelli)
- #13458 `dc53f7f` Drop qt4 support (laanwj)
- #13528 `b877c39` Move BitcoinGUI initializers to class, fix initializer order warning (laanwj)
- #13536 `baf3a3a` coincontrol: Remove unused qt4 workaround (MarcoFalke)
- #13537 `10ffca7` Peer table: Visualize inbound/outbound state for every row (wodry)
- #13791 `2c14c1f` Reject dialogs if key escape is pressed (promag)

### Build system
- #12371 `c9ca4f6` Add gitian PGP key: akx20000 (ghost)
- #11966 `f4f4f51` clientversion: Use full commit hash for commit-based version descriptions (luke-jr)
- #12417 `ae0fbf0` Upgrade `mac_alias` to 2.0.7 (droark)
- #12444 `1f055ef` gitian: Bump descriptors for (0.)17 (theuni)
- #12402 `59e032b` expat 2.2.5, ccache 3.4.1, miniupnpc 2.0.20180203 (fanquake)
- #12029 `daa84b3` Add a makefile target for Doxygen documentation (Ov3rlo4d)
- #12466 `6645eaf` Only use `D_DARWIN_C_SOURCE` when building miniupnpc on darwin (fanquake)
- #11986 `765a3eb` zeromq 4.2.3 (fanquake)
- #12373 `f13d756` Add build support for profiling (murrayn)
- #12631 `a312e20` gitian: Alphabetize signing keys & add kallewoof key (kallewoof)
- #12607 `29fad97` Remove ccache (fanquake)
- #12625 `c4219ff` biplist 1.0.3 (fanquake)
- #12666 `05042d3` configure: UniValue 1.0.4 is required for pushKV(, bool) (luke-jr)
- #12678 `6324c68` Fix a few compilation issues with Clang 7 and -Werror (vasild)
- #12692 `de6bdfd` Add configure options for various -fsanitize flags (eklitzke)
- #12901 `7e23972` Show enabled sanitizers in configure output (practicalswift)
- #12899 `3076993` macOS: Prevent Xcode 9.3 build warnings (AkioNak)
- #12715 `8fd6243` Add 'make clean' rule (hkjn)
- #13133 `a024a18` Remove python2 from (ken2812221)
- #13005 `cb088b1` Make --enable-debug to pick better options (practicalswift)
- #13254 `092b366` Remove improper `qt/moc_*` cleaning glob from the general Makefile (Empact)
- #13306 `f5a7733` split warnings out of CXXFLAGS (theuni)
- #13385 `7c7508c` Guard against accidental introduction of new Boost dependencies (practicalswift)
- #13041 `5779dc4` Add linter checking for accidental introduction of locale dependence (practicalswift)
- #13408 `70a03c6` crypto: cleanup sha256 build (theuni)
- #13435 `cf7ca60` When build fails due to lib missing, indicate which one (Empact)
- #13445 `8eb76f3` Reset default -g -O2 flags when enable debug (ken2812221)
- #13465 `81069a7` Avoid concurrency issue when make multiple target (ken2812221)
- #13454 `45c00f8` Make sure `LC_ALL=C` is set in all shell scripts (practicalswift)
- #13480 `31145a3` Avoid copies in range-for loops and add a warning to detect them (theuni)
- #13486 `66e1a08` Move rpc/util.cpp from libbitcoin-util to libbitcoin-server (ken2812221)
- #13580 `40334c7` Detect if char equals `int8_t` (ken2812221)
- #12788 `287e4ed` Tune wildcards for LIBSECP256K1 target (kallewoof)
- #13611 `b55f0c3` bugfix: Use `__cpuid_count` for gnu C to avoid gitian build fail (ken2812221)
- #12971 `a6d14b1` Upgrade Qt to 5.9.6 (TheCharlatan)
- #13543 `6c6a300` Add RISC-V support (laanwj)
- #13177 `dcb154e` GCC-7 and glibc-2.27 back compat code (ken2812221)
- #13659 `90b1c7e` add missing leveldb defines (theuni)
- #13368 `c0f1569` Update for docker (achow101)
- #13171 `19d8ca5` Change gitian-descriptors to use bionic instead (ken2812221)
- #13604 `75bea05` Add depends 32-bit arm support for bitcoin-qt (TheCharlatan)
- #13623 `9cdb19f` Migrate to python (ken2812221)
- #13689 `8c36432` disable Werror when building zmq (greenaddress)
- #13617 `cf7f9ae` release: Require macos 10.10+ (fanquake)
- #13750 `c883653` use MacOS friendly sed syntax in (Sjors)
- #13095 `415f2bf` update `ax_boost_chrono`/`unit_test_framework` (fanquake)
- #13732 `e8ffec6` Fix Qt's rcc determinism (Fuzzbawls)
- #13782 `8284f1d` Fix osslsigncode compile issue in gitian-build (ken2812221)
- #13696 `2ab7208` Add aarch64 qt depends support for cross compiling bitcoin-qt (TheCharlatan)
- #13705 `b413ba0` Add format string linter (practicalswift)
- #14000 `48c8459` fix qt determinism (theuni)
- #14018 `3e4829a` Bugfix: NSIS: Exclude `Makefile*` from docs (luke-jr)
- #12906 `048ac83` Avoid `interface` keyword to fix windows gitian build (ryanofsky)
- #13314 `a9b6957` Fix FreeBSD build by including utilstrencodings.h (laanwj)

### Tests and QA
- #12252 `8d57319` Require all tests to follow naming convention (ajtowns)
- #12295 `935eb8d` Enable flake8 warnings for all currently non-violated rules (practicalswift)
- #11858 `b4d8549` Prepare tests for Windows (MarcoFalke)
- #11771 `2dbc4a4` Change invalidtxrequest to use BitcoinTestFramework (jnewbery)
- #12200 `d09968f` Bind functional test nodes to (Sjors)
- #12425 `26dc2da` Add some script tests (richardkiss)
- #12455 `23481fa` Fix bip68 sequence test to reflect updated rpc error message (Empact)
- #12477 `acd1e61` Plug memory leaks and stack-use-after-scope (MarcoFalke)
- #12443 `07090c5` Move common args to bitcoin.conf (MarcoFalke)
- #12570 `39dcac2` Add test cases for HexStr (`std::reverse_iterator` and corner cases) (kostaz)
- #12582 `6012f1c` Fix ListCoins test failure due to unset `g_wallet_allow_fallback_fee` (ryanofsky)
- #12516 `7f99964` Avoid unintentional unsigned integer wraparounds in tests (practicalswift)
- #12512 `955fd23` Don't test against the mempool min fee information in (Empact)
- #12600 `29088b1` Add a test for large tx output scripts with segwit input (richardkiss)
- #12627 `791c3ea` Fix some tests to work on native windows (MarcoFalke)
- #12405 `0f58d7f` travis: Full clone for git subtree check (MarcoFalke)
- #11772 `0630974` Change invalidblockrequest to use BitcoinTestFramework (jnewbery)
- #12681 `1846296` Fix ComputeTimeSmart test failure with `-DDEBUG_LOCKORDER` (ryanofsky)
- #12682 `9f04c8e` travis: Clone depth 1 unless `$check_doc` (MarcoFalke)
- #12710 `00d1680` Append scripts to new `test_list` array to fix bad assignment (jeffrade)
- #12720 `872c921` Avoiding 'file' function name from python2 (jeffrade)
- #12728 `4ba3d4f` rename TestNode to TestP2PConn in tests (jnewbery)
- #12746 `2405ce1` Remove unused argument `max_invalid` from `check_estimates()` (practicalswift)
- #12718 `185d484` Require exact match in `assert_start_raises_init_eror` (jnewbery, MarcoFalke)
- #12076 `6d36f59` Use node.datadir instead of tmpdir in test framework (MarcoFalke)
- #12772 `b43aba8` ci: Bump travis timeout for make check to 50m (jnewbery)
- #12806 `18606eb` Fix function names in `feature_blocksdir` (MarcoFalke)
- #12811 `0d8fc8d` Make summary row bold-red if any test failed and show failed tests at end of table (laanwj)
- #12790 `490644d` Use blockmaxweight where tests previously had blockmaxsize (conscott)
- #11773 `f0f9732` Change `` to use BitcoinTestFramework (jnewbery)
- #12839 `40f4baf` Remove travis checkout depth (laanwj)
- #11817 `2a09a78` Change `` to use BitcoinTestFramework (jnewbery)
- #12284 `fa5825d` Remove assigned but never used local variables. Enable Travis checking for unused local variables (practicalswift)
- #12719 `9beded5` Add note about test suite naming convention in (practicalswift)
- #12861 `c564424` Stop `` from blowing up memory (jnewbery)
- #12851 `648252e` travis: Run verify-commits only on cron jobs (MarcoFalke)
- #12853 `2106c4c` Match full plain text by default (MarcoFalke)
- #11818 `9a2db3b` I accidentally (deliberately) killed it (the ComparisonTestFramework) (jnewbery)
- #12766 `69310a3` Tidy up REST interface functional tests (romanz)
- #12849 `83c7533` Add logging in loops in `` (ccdle12)
- #12895 `d6f10b2` Add note about test suite name uniqueness requirement to developer notes (practicalswift)
- #12856 `27278df` Add Metaclass for BitcoinTestFramework (WillAyd)
- #12918 `6fc5a05` Assert on correct variable (kallewoof)
- #11878 `a04440f` Add Travis check for duplicate includes (practicalswift)
- #12917 `cf8073f` Windows fixups for functional tests (MarcoFalke)
- #12926 `dd1ca9e` Run unit tests in parallel (sipa)
- #12920 `b1fdfc1` Fix sign for expected values (kallewoof)
- #12947 `979f598` Wallet hd functional test speedup and clarification (instagibbs)
- #12993 `0d69921` Remove compatibility code not needed now when we're on Python 3 (practicalswift)
- #12996 `6a278e0` Remove redundant bytes() calls (practicalswift)
- #12949 `6b46288` Avoid copies of CTransaction (MarcoFalke)
- #13007 `0d12570` Fix dangling wallet pointer in vpwallets (promag)
- #13048 `cac6d11` Fix `feature_block` flakiness (jnewbery)
- #12510 `d5b2e98` Add `rpc_bind` test to default-run tests (laanwj)
- #13022 `896a9d0` Attach node index to `test_node` AssertionError and print messages (jamesob)
- #13024 `018c7e5` Add rpcauth pair that generated by (ken2812221)
- #13013 `a0079d4` bench: Amend `mempool_eviction` test for witness txs (MarcoFalke)
- #13051 `e074097` Normalize executable location (MarcoFalke)
- #13056 `106d929` Make testable and add unit tests (nixbox)
- #13073 `a785bc3` add rpcauth-test to `AC_CONFIG_LINKS` to fix out-of-tree make check (laanwj)
- #12830 `25ad2f7` Clarify address book error messages, add tests (jamesob)
- #13082 `24106a8` don't test against min relay fee information in `` (kristapsk)
- #13003 `8d045a0` Add test for orphan handling (MarcoFalke)
- #13105 `9e9b48d` Add --failfast option to functional test runner (jamesob)
- #13130 `3186ad4` Fix race in `` (jnewbery)
- #13136 `baf6b4e` Fix flake8 warnings in several wallet functional tests (jnewbery)
- #13094 `bf9b03d` Add test for 64-bit Windows PE, modify 32-bit test results (ken2812221)
- #13183 `9458b05` travis: New travis job for `check_docs` steps (glaksmono)
- #12265 `1834d4d` fundrawtransaction: lock watch-only shared address (kallewoof)
- #13188 `4a50ec0` Remove unused option --srcdir (MarcoFalke)
- #12755 `612ba35` Better stderr testing (jnewbery)
- #13198 `196c5a9` Avoid printing to console during cache creation (sdaftuar)
- #13075 `cb9bbf7` Remove 'account' API from wallet functional tests (jnewbery)
- #13221 `ffa86af` travis: Rename the build stage `check_doc` to `lint` (practicalswift)
- #13205 `3cbd25f` Remove spurious error log in `` (jnewbery)
- #13291 `536120e` Don't include torcontrol.cpp into the test file (Empact)
- #13281 `2ac6315` Move linters to test/lint, add readme (MarcoFalke)
- #13215 `f8a29ca` travis: Build tests on ubuntu 18.04 with docker (ken2812221)
- #13349 `24f7011` bench: Don't return a bool from main (laanwj)
- #13347 `87a9d03` travis: Skip cache for lint stage (MarcoFalke)
- #13355 `0b1c0c4` Fix "gmake check" under OpenBSD 6.3 (probably `*BSD`): Avoid using GNU grep specific regexp handling (practicalswift)
- #13353 `d4f6dac` Fixup setting of PATH env var (MarcoFalke)
- #13352 `e24bf1c` Avoid checking reject code for now (MarcoFalke)
- #13383 `2722a1f` bench: Use non-throwing parsedouble() instead of throwing boost::lexical_cast<double>() (practicalswift)
- #13367 `264efdc` Increase includeconf test coverage (MarcoFalke)
- #13404 `3d3d8ae` speed up of `tx_validationcache_tests` by reusing of CTransaction (lucash-dev)
- #13421 `531a033` Remove `portseed_offset` from test runner (MarcoFalke)
- #13440 `5315660` Log as utf-8 (MarcoFalke)
- #13066 `fa4b906` Migrate verify-commits script to python, run in travis (ken2812221)
- #13447 `4b1edd3` travis: Increase `travis_wait` time while verifying commits (ken2812221)
- #13350 `f532d52` Add logging to provide anchor points when debugging p2p_sendheaders (lmanners)
- #13406 `4382f19` travis: Change mac goal to all deploy (ken2812221)
- #13457 `b222138` Drop variadic macro (MarcoFalke)
- #13512 `3a45493` mininode: Expose connection state through `is_connected` (MarcoFalke)
- #13496 `9ab4c2a` Harden (wodry)
- #13219 `08516e0` bench: Add block assemble benchmark (MarcoFalke)
- #13530 `b1dc39d` bench: Add missing pow.h header (laanwj)
- #12686 `2643fa5` Add -ftrapv to CFLAGS and CXXFLAGS when --enable-debug is used. Enable -ftrapv in Travis (practicalswift)
- #12882 `d96bdd7` Make `test_bitcoin` pass under ThreadSanitzer (clang). Fix lock-order-inversion (potential deadlock) (practicalswift)
- #13535 `2328039` `wallet_basic`: Specify minimum required amount for listunspent (MarcoFalke)
- #13551 `c93c360` Fix incorrect documentation for test case `cuckoocache_hit_rate_ok` (practicalswift)
- #13563 `b330f3f` bench: Simplify coinselection (promag)
- #13517 `a6ed99a` Remove need to handle the network thread in tests (MarcoFalke)
- #13522 `686e97a` Fix `p2p_sendheaders` race (jnewbery)
- #13467 `3dc2dcf` Make `p2p_segwit` easier to debug (jnewbery)
- #13598 `0212187` bench: Fix incorrect behaviour in prevector.cpp (AkioNak)
- #13565 `b05ded1` Fix AreInputsStandard test to reference the proper scriptPubKey (Empact)
- #13145 `d3dae3d` Use common getPath method to create temp directory in tests (winder)
- #13645 `2ea7eb6` skip `rpc_zmq` functional test as necessary (jamesob)
- #13626 `8f1106d` Fix some TODOs in `p2p_segwit` (MarcoFalke)
- #13138 `8803c91` Remove accounts from `` (jnewbery)
- #13663 `cbc9b50` Avoid read/write to default datadir (MarcoFalke)
- #13682 `f8a32a3` bench: Remove unused variable (practicalswift)
- #13638 `6fcdb5e` Use `MAX_SCRIPT_ELEMENT_SIZE` from (domob1812)
- #13687 `9d26b69` travis: Check that ~/.bitcoin is never created (MarcoFalke)
- #13715 `e1260a7` fixes mininode's P2PConnection sending messages on closing transport (marcoagner)
- #13729 `aa9429a` travis: Avoid unnecessarily setting env variables on the lint build (Empact)
- #13747 `ab28b5b` Skip P2PConnection's `is_closing()` check when not available (domob1812)
- #13650 `7a9bca6` travis: Don't store debug info if --enable-debug is set (ken2812221)
- #13711 `f98d1e0` bench: Add benchmark for unserialize prevector (AkioNak)
- #13771 `365384f` travis: Retry to fetch docker image (MarcoFalke)
- #13806 `4d550ff` Fix `bench/block_assemble` assert failure (jamesob)
- #13779 `d25079a` travis: Improve readability of travis.yml and log outputs (scravy)
- #13822 `0fb9c87` bench: Make coinselection output groups pass eligibility filter (achow101)
- #13247 `e83d82a` Add tests to SingleThreadedSchedulerClient() and document the memory model (skeees)
- #13811 `660abc1` travis: Run `bench_bitcoin` once (MarcoFalke)
- #13837 `990e182` Extract `rpc_timewait` as test param (MarcoFalke)
- #13851 `9c4324d` fix locale for lint-shell (scravy)
- #13823 `489b51b` quote path in authproxy for external multiwallets (MarcoFalke)
- #13849 `2b67354` travis: Use only travis jobs: instead of mix of jobs+matrix (scravy)
- #13859 `2384323` Add emojis to `test_runner` path and wallet filename (MarcoFalke)
- #13916 `8ac7125` `wait_for_verack` by default (MarcoFalke)
- #13669 `f66e1c7` Cleanup `create_transaction` implementations (conscott)
- #13924 `09ada21` Simplify comparison in `` (domob1812)
- #13913 `a08533c` Remove redundant checkmempool/checkblockindex `extra_args` (MarcoFalke)
- #13915 `a04888a` Add test for max number of entries in locator (MarcoFalke)
- #13867 `1b04b55` Make extended tests pass on native Windows (MarcoFalke)
- #13944 `0df7a6c` Port usage of deprecated optparse module to argparse module (Kvaciral)
- #13928 `b8eb0df` blocktools enforce named args for amount (MarcoFalke)
- #13054 `bffb35f` Enable automatic detection of undefined names in Python tests scripts. Remove wildcard imports (practicalswift)
- #14069 `cf3d7f9` Use assert not `BOOST_CHECK_*` from multithreaded tests (skeees)
- #14071 `fab0fbe` Stop txindex thread before calling destructor (MarcoFalke)

### Miscellaneous
- #11909 `8897135` contrib: Replace developer keys with list of pgp fingerprints (MarcoFalke)
- #12394 `fe53d5f` fix --setup doc, since lxc is default (Sjors)
- #12468 `294a766` Add missing newline in init.cpp log message (Aesti)
- #12308 `dcfe218` contrib: Add support for out-of-tree builds in (laanwj)
- #12451 `aae64a2` Bump leveldb subtree (MarcoFalke)
- #12527 `d77b4a7` fix signProg being recognized as two parameters (ken2812221)
- #12588 `d74b01d` utils: Remove deprecated pyzmq call from python zmq example (kosciej)
- #10271 `bc67982` Use `std::thread::hardware_concurrency`, instead of Boost, to determine available cores (fanquake)
- #12097 `14475e2` scripts: Lint-whitespace: use perl instead of grep -p (Sjors)
- #12098 `17c44b2` scripts: Lint-whitespace: add param to check last n commits (Sjors)
- #11900 `842f61a` script: Simplify checkminimalpush checks, add safety assert (instagibbs)
- #12567 `bb98aec` util: Print timestamp strings in logs using iso 8601 formatting (practicalswift)
- #12572 `d8d9162` script: Lint-whitespace: find errors more easily (AkioNak)
- #10694 `ae5bcc7` Remove redundant code in MutateTxSign(CMutableTransaction&, const std::string&) (practicalswift)
- #12659 `3d16f58` Improve Fatal LevelDB Log Messages (eklitzke)
- #12643 `0f0229d` util: Remove unused `sync_chain` (MarcoFalke)
- #12102 `7fb8fb4` Apply hardening measures in bitcoind systemd service file (Flowdalic)
- #12652 `55f490a` bitcoin-cli: Provide a better error message when bitcoind is not running (practicalswift)
- #12630 `c290508` Provide useful error message if datadir is not writable (murrayn)
- #11881 `624bee9` Remove Python2 support (jnewbery)
- #12821 `082e26c` contrib: Remove unused import string (MarcoFalke)
- #12829 `252c1b0` Python3 fixup (jnewbery)
- #12822 `ff48f62` Revert 7deba93bdc76616011a9f493cbc203d60084416f and fix expired-key-sigs properly (TheBlueMatt)
- #12820 `5e53b80` contrib: Fix check-doc script regexes (MarcoFalke)
- #12713 `4490871` Track negated options in the option parser (eklitzke)
- #12708 `b2e5fe8` Make test that merges are clean (sipa)
- #12891 `3190785` logging: Add to check for newline termination (jnewbery)
- #12923 `a7cbe38` util: Pass `pthread_self()` to `pthread_setschedparam` instead of 0 (laanwj)
- #12871 `fb17fae` Add shell script linting: Check for shellcheck warnings in shell scripts (practicalswift)
- #12970 `5df84de` logging: Bypass timestamp formatting when not logging (theuni)
- #12987 `fe8fa22` tests/tools: Enable additional Python flake8 rules for automatic linting via Travis (practicalswift)
- #12972 `0782508` Add python3 script shebang lint (ken2812221)
- #13004 `58bbc55` Print to console by default when not run with -daemon (practicalswift)
- #13039 `8b4081a` Add logging and error handling for file syncing (laanwj)
- #13020 `4741ca5` Consistently log CValidationState on call failure (Empact)
- #13031 `826acc9` Fix for utiltime to compile with msvc (sipsorcery)
- #13119 `81743b5` Remove script to clean up datadirs (MarcoFalke)
- #12954 `5a66642` util: Refactor logging code into a global object (jimpo)
- #12769 `35eb9d6` Add systemd service to bitcoind in debian package (ghost)
- #13146 `0bc980b` rpcauth: Make it possible to provide a custom password (laanwj)
- #13148 `b62b437` logging: Fix potential use-after-free in logprintstr() (practicalswift)
- #13214 `0612d96` Enable Travis checking for two Python linting rules we are currently not violating (practicalswift)
- #13197 `6826989` util: Warn about ignored recursive -includeconf calls (kallewoof)
- #13176 `d9ebb63` Improve CRollingBloomFilter performance: replace modulus with FastMod (martinus)
- #13228 `d792e47` Add script to detect circular dependencies between source modules (sipa)
- #13320 `e08c130` Ensure uses bash (jhfrontz)
- #13301 `e4082d5` lint: Add linter to error on `#include <*.cpp>` (Empact)
- #13374 `56f6936` utils and libraries: checking for bitcoin address in translations (kaplanmaxe)
- #13230 `7c32b41` Simplify include analysis by enforcing the developer guide's include syntax (practicalswift)
- #13450 `32bf4c6` Add linter: Enforce the source code file naming convention described in the developer notes (practicalswift)
- #13479 `fa2ea37` contrib: Fix cve-2018-12356 by hardening the regex (loganaden)
- #13448 `a90ca40` Add linter: Make sure we explicitly open all text files using UTF-8 encoding in Python (practicalswift)
- #13494 `d67eff8` Follow-up to #13454: Fix broken build by exporting `LC_ALL=C` (practicalswift)
- #13510 `03f3925` Scripts and tools: Obsolete #!/bin/bash shebang (DesWurstes)
- #13577 `c9eb8d1` logging: Avoid nstart may be used uninitialized in appinitmain warning (mruddy)
- #13603 `453ae5e` bitcoin-tx: Stricter check for valid integers (domob1812)
- #13118 `c05c93c` RPCAuth Detection in Logs (Linrono)
- #13647 `4027ec1` Scripts and tools: Fix `BIND_NOW` check in (conradoplg)
- #13692 `f5d166a` contrib: Clone core repo in gitian-build (MarcoFalke)
- #13699 `4c6d1b9` contrib: Correct version check (kallewoof)
- #13695 `dcc0cff` lint: Add linter for circular dependencies (Empact)
- #13733 `0d1ebf4` utils: Refactor argsmanager a little (AtsukiTak)
- #13714 `29b4ee6` contrib: Add lxc network setup for bionic host (ken2812221)
- #13764 `f8685f4` contrib: Fix test-security-check fail in ubuntu 18.04 (ken2812221)
- #13809 `77168f7` contrib: Remove debian and rpm subfolder (MarcoFalke)
- #13799 `230652c` Ignore unknown config file options; warn instead of error (sipa)
- #13894 `df9f712` shutdown: Stop threads before resetting ptrs (MarcoFalke)
- #13925 `71dec5c` Merge leveldb subtree (MarcoFalke)
- #13939 `ef86f26` lint: Make format string linter understand basic template parameter syntax (practicalswift)
- #14105 `eb202ea` util: Report parse errors in configuration file (laanwj)
- #12604 `9903537` Add DynamicMemoryUsage() to CDBWrapper to estimate LevelDB memory use (eklitzke)
- #12495 `047865e` Increase LevelDB `max_open_files` (eklitzke)
- #12784 `e80716d` Fix bug in memory usage calculation (unintended integer division) (practicalswift)
- #12618 `becd8dd` Set `SCHED_BATCH` priority on the loadblk thread (eklitzke)
- #12854 `5ca1509` Add P2P, Network, and Qt categories to the desktop icon (luke-jr)
- #11862 `4366f61` Network specific conf sections (ajtowns)
- #13441 `4a7e64f` Prevent shared conf files from failing with different available options in different binaries (achow101)
- #13471 `5eca4e8` For AVX2 code, also check for AVX, XSAVE, and OS support (sipa)
- #13503 `c655b2c` Document FreeBSD quirk. Fix FreeBSD build: Use std::min<int>() to allow for compilation under certain FreeBSD versions (practicalswift)
- #13725 `07ce278` Fix bitcoin-cli --version (Empact)

### Documentation
- #12306 `216f9a4` Improvements to UNIX documentation (axvr)
- #12309 `895fbd7` Explain how to update chainTxData in release process (laanwj)
- #12317 `85123be` Document method for reviewers to verify chainTxData (jnewbery)
- #12331 `d32528e` Properly alphabetize output of CLI --help option (murrayn)
- #12322 `c345148` Remove step making cloned repository world-writable for Windows build (murrayn)
- #12354 `b264528` add gpg key for fivepiece (fivepiece)
- #11761 `89005dd` initial QT documentation (Sjors)
- #12232 `fdc2188` Improve "Turn Windows Features On or Off" step (MCFX2)
- #12487 `4528f74` init: Remove translation for `-blockmaxsize` option help (laanwj)
- #12546 `a4a5fc7` Minor improvements to Compatibility Notes (randolf)
- #12434 `21e2670` dev-notes: Members should be initialized (MarcoFalke)
- #12452 `71f56da` clarified systemd installation instructions in for Ubuntu users (DaveFromBinary)
- #12615 `1f93491` allow for SIGNER containing spaces (ken2812221)
- #12603 `85424d7` PeerLogicValidation interface (jamesob)
- #12581 `12ac2f0` Mention configure without wallet in FreeBSD instructions (dbolser)
- #12619 `8a709fb` Give hint about gitian not able to download (kallewoof)
- #12668 `de2fcaa` do update before fetching packages in WSL build guide (nvercamm)
- #12586 `e7721e6` Update osx brew install instruction (fanquake)
- #12760 `7466a26` Improve documentation on standard communication channels (jimpo)
- #12797 `0415b1e` init: Fix help message for checkblockindex (MarcoFalke)
- #12800 `2d97611` Add note about our preference for scoped enumerations ("enum class") (practicalswift)
- #12798 `174d016` Refer to witness reserved value as spec. in the BIP (MarcoFalke)
- #12759 `d3908e2` Improve formatting of developer notes (eklitzke)
- #12877 `2b54155` Use bitcoind in Tor documentation (knoxcard)
- #12896 `b15485e` Fix conflicting statements about initialization in developer notes (practicalswift)
- #12850 `319991d` add qrencode to brew install instructions (buddilla)
- #12007 `cd8e45b` Clarify the meaning of fee delta not being a fee rate in prioritisetransaction RPC (honzik666)
- #12927 `06ead15` fixed link, replaced QT with Qt (trulex)
- #12852 `ebd786b` devtools: Setup ots git integration (MarcoFalke)
- #12933 `3cf76c2` Refine header include policy (MarcoFalke)
- #12951 `6df0c6c` Fix comment in FindForkInGlobalIndex (jamesob)
- #12982 `a63b4e3` Fix inconsistent namespace formatting guidelines (ryanofsky)
- #13026 `9b3a67e` Fix include comment in src/interfaces/wallet.h (promag)
- #13012 `d1e3c5e` Add comments for chainparams.h, validation.cpp (jamesob)
- #13064 `569e381` List support for BIP173 in (sipa)
- #12997 `646b7f6` build-windows: Switch to Artful, since Zesty is EOL (MarcoFalke)
- #12384 `c5f7efe` Add version footnote to (Willtech)
- #13165 `627c376` Mention good first issue list in (fanquake)
- #13295 `fb77310` Update OpenBSD build instructions for OpenBSD 6.3 (practicalswift)
- #13340 `3a8e3f4` remove leftover check-doc documentation (fanquake)
- #13346 `60f0358` update bitcoin-dot-org links in (fanquake)
- #13372 `f014933` split FreeBSD build instructions out of (steverusso)
- #13366 `861de3b` Rename OS X to the newer macOS convention (giulio92)
- #13369 `f8bcef3` update transifex doc link (mess110)
- #13312 `b22115d` Add a note about the source code filename naming convention (practicalswift)
- #13460 `1939536` Remove note to install all boost dev packages (MarcoFalke)
- #13476 `9501938` Fix incorrect shell quoting in FreeBSD build instructions (murrayn)
- #13402 `43fa355` Document validationinterace callback blocking deadlock potential (TheBlueMatt)
- #13488 `d6cf4bd` Improve readability of "Squashing commits" (wodry)
- #13531 `ee02deb` Clarify that mempool txiter is `const_iterator` (MarcoFalke)
- #13418 `01f9098` More precise explanation of parameter onlynet (wodry)
- #13592 `1756cb4` Modify policy to not translate command-line help (ken2812221)
- #13588 `b77c38e` Improve doc of options addnode, connect, seednode (wodry)
- #13614 `17e9106` Update command line help for -printtoconsole and -debuglogfile (satwo, fanquake)
- #13605 `8cc048e` corrected text to reflect new(er) process of specifying fingerprints (jhfrontz)
- #13481 `b641f60` Rewrite some validation docs as lock annotations (MarcoFalke)
- #13680 `30640f8` Remove outdated comment about miner ignoring CPFP (jamesob)
- #13625 `7146672` Add release notes for -printtoconsole and -debuglogfile changes (satwo)
- #13718 `f7f574d` Specify preferred Python string formatting technique (masonicboom)
- #12764 `10b9a81` Remove field in getblocktemplate help that has never been used (conscott)
- #13742 `d2186b3` Adjust links (MarcoFalke)
- #13706 `94dd89e` Minor improvements to (MitchellCash)
- #13775 `ef4fac0` Remove newlines from error message (practicalswift)
- #13803 `feb7dd9` add note to contributor docs about warranted PR's (kallewoof)
- #13814 `67af7ef` Add BIP174 to list of implemented BIPs (sipa)
- #13835 `c1cba35` Fix memory consistency model in comment (skeees)
- #13824 `aa30e4b` Remove outdated net comment (MarcoFalke)
- #13853 `317477a` correct versions in (fanquake)
- #13872 `37ab117` Reformat -help output for help2man (real-or-random)
- #13717 `8c3c402` Link to python style guidelines from developer notes (masonicboom)
- #13895 `1cd5f2c` fix GetWarnings docs to reflect behavior (Empact)
- #13911 `3e3a50a` Revert translated string change, clarify wallet log messages (PierreRochard)
- #13908 `d6faea4` upgrade rescan time warning from minutes to >1 hour (masonicboom)
- #13905 `73a09b4` fixed bitcoin-cli -help output for help2man (hebasto)
- #14100 `2936dbc` Change documentation for =0 for non-boolean options (laanwj)
- #14096 `465a583` Add reference documentation for descriptors language (sipa)
- #12757 `0c5f67b` Clarify include guard naming convention (practicalswift)
- #13844 `d3325b0` Correct the help output for `-prune` (hebasto)


Thanks to everyone who directly contributed to this release:

- 251
- 532479301
- Aaron Clauson
- Akio Nakamura
- Akira Takizawa
- Alex Morcos
- Alex Vear
- Alexey Ivanov
- Alin Rus
- Andrea Comand
- Andrew Chow
- Anthony Towns
- AtsukiTak
- Ben Woosley
- Bernhard M. Wiedemann
- Brandon Ruggles
- buddilla
- ccdle12
- Chris Moore
- Chun Kuan Lee
- Clem Taylor
- Conor Scott
- Conrado Gouvea
- Cory Fields
- Cristian Mircea Messel
- ctp-tsteenholdt
- Damian Williamson
- Dan Bolser
- Daniel Kraft
- Darko Janković
- DaveFromBinary
- David A. Harding
- DesWurstes
- Dimitris Apostolou
- donaloconnor
- Douglas Roark
- DrahtBot
- Drew Rasmussen
- e0
- Ernest Hemingway
- Ethan Heilman
- Evan Klitzke
- fanquake
- Felix Wolfsteller
- fivepiece
- Florian Schmaus
- Fuzzbawls
- Gabriel Davidian
- Giulio Lombardo
- Gleb
- Grady Laksmono
- GreatSock
- Gregory Maxwell
- Gregory Sanders
- Hennadii Stepanov
- Henrik Jonsson
- James O'Beirne
- Jan Čapek
- Jeff Frontz
- Jeff Rade
- Jeremy Rubin
- JeremyRand
- Jesse Cohen
- Jim Posen
- joemphilips
- John Bampton
- John Newbery
- johnlow95
- Johnson Lau
- Jonas Nick
- Jonas Schnelli
- Joo Barbosa
- Jorge Timn
- Josh Hartshorn
- Julian Fleischer
- kallewoof
- Karel Bilek
- Karl-Johan Alm
- Ken Lee
- Kevin Pan
- Kosta Zertsekel
- Kristaps Kaupe
- Kvaciral
- Lawrence Nahum
- Linrono
- lmanners
- Loganaden Velvindron
- Lowell Manners
- [email protected]
- Luke Dashjr
- lutangar
- Marcin Jachymiak
- marcoagner
- MarcoFalke
- Mark Erhardt
- Mark Friedenbach
- Martin Ankerl
- Mason Simon
- Matt Corallo
- Matteo Sumberaz
- Max Kaplan
- MeshCollider
- Michał Zabielski
- Mitchell Cash
- mruddy
- mryandao
- murrayn
- Nick Vercammen
- Nicolas Dorier
- Nikolay Mitev
- okayplanet
- Pierre Rochard
- Pieter Wuille
- practicalswift
- Qasim Javed
- Randolf Richardson
- Richard Kiss
- Roman Zeyde
- Russell Yanofsky
- Samuel B. Atwood
- Sebastian Kung
- Sjors Provoost
- Steve Lee
- steverusso
- Suhas Daftuar
- Tamas Blummer
- TheCharlatan
- Thomas Kerin
- Thomas Snider
- Tim Ruffing
- Varunram
- Vasil Dimov
- Will Ayd
- William Robinson
- winder
- Wladimir J. van der Laan
- wodry

And to those that reported security issues:

- awemany (for CVE-2018-17144, previously credited as "anonymous reporter")

As well as everyone that helped translating on [Transifex](

Hash: SHA256

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Version: GnuPG v1.4.11 (GNU/Linux)

38  Bitcoin / Bitcoin Discussion / Bitcoin Core 0.17.0 Released on: October 03, 2018, 01:24:29 PM
Bitcoin Core version 0.17.0 is now available from:


This is a new major version release, including new features, various bugfixes
and performance improvements, as well as updated translations.

Please report bugs using the issue tracker at GitHub:


To receive security and update notifications, please subscribe to:


How to Upgrade

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).

If your node has a txindex, the txindex db will be migrated the first time you run 0.17.0 or newer, which may take up to a few hours. Your node will not be functional until this migration completes.

The first time you run version 0.15.0 or newer, your chainstate database will be converted to a
new format, which will take anywhere from a few minutes to half an hour,
depending on the speed of your machine.

Note that the block database format also changed in version 0.8.0 and there is no
automatic upgrade code from before version 0.8 to version 0.15.0. Upgrading
directly from 0.7.x and earlier without redownloading the blockchain is not supported.
However, as usual, old wallet versions are still supported.

Downgrading warning

The chainstate database for this release is not compatible with previous
releases, so if you run 0.15 and then decide to switch back to any
older version, you will need to run the old release with the `-reindex-chainstate`
option to rebuild the chainstate data structures in the old format.

If your node has pruning enabled, this will entail re-downloading and
processing the entire blockchain.


Bitcoin Core is extensively tested on multiple operating systems using
the Linux kernel, macOS 10.10+, and Windows 7 and newer (Windows XP is not supported).

Bitcoin Core should also work on most other Unix-like systems but is not
frequently tested on them.

From 0.17.0 onwards macOS <10.10 is no longer supported. 0.17.0 is built using Qt 5.9.x, which doesn't
support versions of macOS older than 10.10.

Known issues

- Upgrading from 0.13.0 or older currently results in memory blow-up during the roll-back of blocks to the SegWit activation point. In these cases, a full `-reindex` is necessary.

- The GUI suffers from visual glitches in the new MacOS dark mode. This has to do with our Qt theme handling and is not a new problem in 0.17.0, but is expected to be resolved in 0.17.1.

Notable changes

Changed configuration options

- `-includeconf=<file>` can be used to include additional configuration files.
  Only works inside the `bitcoin.conf` file, not inside included files or from
  command-line. Multiple files may be included. Can be disabled from command-
  line via `-noincludeconf`. Note that multi-argument commands like
  `-includeconf` will override preceding `-noincludeconf`, i.e.

  as bitcoin.conf will still include `relative.conf`.

GUI changes

- Block storage can be limited under Preferences, in the Main tab. Undoing this setting requires downloading the full blockchain again. This mode is incompatible with -txindex and -rescan.

External wallet files

The `-wallet=<path>` option now accepts full paths instead of requiring wallets
to be located in the -walletdir directory.

Newly created wallet format

If `-wallet=<path>` is specified with a path that does not exist, it will now
create a wallet directory at the specified location (containing a wallet.dat
data file, a db.log file, and database/log.HuhHuhHuh? files) instead of just
creating a data file at the path and storing log files in the parent
directory. This should make backing up wallets more straightforward than
before because the specified wallet path can just be directly archived without
having to look in the parent directory for transaction log files.

For backwards compatibility, wallet paths that are names of existing data files
in the `-walletdir` directory will continue to be accepted and interpreted the
same as before.

Dynamic loading and creation of wallets

Previously, wallets could only be loaded or created at startup, by specifying `-wallet` parameters on the command line or in the bitcoin.conf file. It is now possible to load, create and unload wallets dynamically at runtime:

- Existing wallets can be loaded by calling the `loadwallet` RPC. The wallet can be specified as file/directory basename (which must be located in the `walletdir` directory), or as an absolute path to a file/directory.
- New wallets can be created (and loaded) by calling the `createwallet` RPC. The provided name must not match a wallet file in the `walletdir` directory or the name of a wallet that is currently loaded.
- Loaded wallets can be unloaded by calling the `unloadwallet` RPC.

This feature is currently only available through the RPC interface.

Coin selection

### Partial spend avoidance

When an address is paid multiple times the coins from those separate payments can be spent separately which hurts privacy due to linking otherwise separate addresses. A new `-avoidpartialspends` flag has been added (default=false). If enabled, the wallet will always spend existing UTXO to the same address together even if it results in higher fees. If someone were to send coins to an address after it was used, those coins will still be included in future coin selections.

Configuration sections for testnet and regtest

It is now possible for a single configuration file to set different
options for different networks. This is done by using sections or by
prefixing the option with the network, such as:


If the following options are not in a section, they will only apply to mainnet:
`addnode=`, `connect=`, `port=`, `bind=`, `rpcport=`, `rpcbind=` and `wallet=`.
The options to choose a network (`regtest=` and `testnet=`) must be specified
outside of sections.

'label' and 'account' APIs for wallet

A new 'label' API has been introduced for the wallet. This is intended as a
replacement for the deprecated 'account' API. The 'account' can continue to
be used in V0.17 by starting bitcoind with the '-deprecatedrpc=accounts'
argument, and will be fully removed in V0.18.

The label RPC methods mirror the account functionality, with the following functional differences:

- Labels can be set on any address, not just receiving addresses. This functionality was previously only available through the GUI.
- Labels can be deleted by reassigning all addresses using the `setlabel` RPC method.
- There isn't support for sending transactions _from_ a label, or for determining which label a transaction was sent from.
- Labels do not have a balance.

Here are the changes to RPC methods:

| Deprecated Method       | New Method            | Notes       |
| :---------------------- | :-------------------- | :-----------|
| `getaccount`            | `getaddressinfo`      | `getaddressinfo` returns a json object with address information instead of just the name of the account as a string. |
| `getaccountaddress`     | n/a                   | There is no replacement for `getaccountaddress` since labels do not have an associated receive address. |
| `getaddressesbyaccount` | `getaddressesbylabel` | `getaddressesbylabel` returns a json object with the addresses as keys, instead of a list of strings. |
| `getreceivedbyaccount`  | `getreceivedbylabel`  | _no change in behavior_ |
| `listaccounts`          | `listlabels`          | `listlabels` does not return a balance or accept `minconf` and `watchonly` arguments. |
| `listreceivedbyaccount` | `listreceivedbylabel` | Both methods return new `label` fields, along with `account` fields for backward compatibility. |
| `move`                  | n/a                   | _no replacement_ |
| `sendfrom`              | n/a                   | _no replacement_ |
| `setaccount`            | `setlabel`            | Both methods now: <ul><li>allow assigning labels to any address, instead of raising an error if the address is not receiving address.<li>delete the previous label associated with an address when the final address using that label is reassigned to a different label, instead of making an implicit `getaccountaddress` call to ensure the previous label still has a receiving address. |

| Changed Method         | Notes   |
| :--------------------- | :------ |
| `addmultisigaddress`   | Renamed `account` named parameter to `label`. Still accepts `account` for backward compatibility if running with '-deprecatedrpc=accounts'. |
| `getnewaddress`        | Renamed `account` named parameter to `label`. Still accepts `account` for backward compatibility. if running with '-deprecatedrpc=accounts' |
| `listunspent`          | Returns new `label` fields. `account` field will be returned for backward compatibility if running with '-deprecatedrpc=accounts' |
| `sendmany`             | The `account` named parameter has been renamed to `dummy`. If provided, the `dummy` parameter must be set to the empty string, unless running with the `-deprecatedrpc=accounts` argument (in which case functionality is unchanged). |
| `listtransactions`     | The `account` named parameter has been renamed to `dummy`. If provided, the `dummy` parameter must be set to the string `*`, unless running with the `-deprecatedrpc=accounts` argument (in which case functionality is unchanged). |
| `getbalance`           | `account`, `minconf` and `include_watchonly` parameters are deprecated, and can only be used if running with '-deprecatedrpc=accounts' |

BIP 174 Partially Signed Bitcoin Transactions support

[BIP 174 PSBT]( is an interchange format for Bitcoin transactions that are not fully signed
yet, together with relevant metadata to help entities work towards signing it.
It is intended to simplify workflows where multiple parties need to cooperate to
produce a transaction. Examples include hardware wallets, multisig setups, and
[CoinJoin]( transactions.

### Overall workflow

Overall, the construction of a fully signed Bitcoin transaction goes through the
following steps:

- A **Creator** proposes a particular transaction to be created. He constructs
  a PSBT that contains certain inputs and outputs, but no additional metadata.
- For each input, an **Updater** adds information about the UTXOs being spent by
  the transaction to the PSBT.
- A potentially other Updater adds information about the scripts and public keys
  involved in each of the inputs (and possibly outputs) of the PSBT.
- **Signers** inspect the transaction and its metadata to decide whether they
  agree with the transaction. They can use amount information from the UTXOs
  to assess the values and fees involved. If they agree, they produce a
  partial signature for the inputs for which they have relevant key(s).
- A **Finalizer** is run for each input to convert the partial signatures and
  possibly script information into a final `scriptSig` and/or `scriptWitness`.
- An **Extractor** produces a valid Bitcoin transaction (in network format)
  from a PSBT for which all inputs are finalized.

Generally, each of the above (excluding Creator and Extractor) will simply
add more and more data to a particular PSBT. In a naive workflow, they all have
to operate sequentially, passing the PSBT from one to the next, until the
Extractor can convert it to a real transaction. In order to permit parallel
operation, **Combiners** can be employed which merge metadata from different
PSBTs for the same unsigned transaction.

The names above in bold are the names of the roles defined in BIP174. They're
useful in understanding the underlying steps, but in practice, software and
hardware implementations will typically implement multiple roles simultaneously.

### RPCs

- **`converttopsbt` (Creator)** is a utility RPC that converts an
  unsigned raw transaction to PSBT format. It ignores existing signatures.
- **`createpsbt` (Creator)** is a utility RPC that takes a list of inputs and
  outputs and converts them to a PSBT with no additional information. It is
  equivalent to calling `createrawtransaction` followed by `converttopsbt`.
- **`walletcreatefundedpsbt` (Creator, Updater)** is a wallet RPC that creates a
  PSBT with the specified inputs and outputs, adds additional inputs and change
  to it to balance it out, and adds relevant metadata. In particular, for inputs
  that the wallet knows about (counting towards its normal or watch-only
  balance), UTXO information will be added. For outputs and inputs with UTXO
  information present, key and script information will be added which the wallet
  knows about. It is equivalent to running `createrawtransaction`, followed by
  `fundrawtransaction`, and `converttopsbt`.
- **`walletprocesspsbt` (Updater, Signer, Finalizer)** is a wallet RPC that takes as
  input a PSBT, adds UTXO, key, and script data to inputs and outputs that miss
  it, and optionally signs inputs. Where possible it also finalizes the partial
- **`finalizepsbt` (Finalizer, Extractor)** is a utility RPC that finalizes any
  partial signatures, and if all inputs are finalized, converts the result to a
  fully signed transaction which can be broadcast with `sendrawtransaction`.
- **`combinepsbt` (Combiner)** is a utility RPC that implements a Combiner. It
  can be used at any point in the workflow to merge information added to
  different versions of the same PSBT. In particular it is useful to combine the
  output of multiple Updaters or Signers.
- **`decodepsbt`** is a diagnostic utility RPC which will show all information in
  a PSBT in human-readable form, as well as compute its eventual fee if known.

Upgrading non-HD wallets to HD wallets

Since Bitcoin Core 0.13.0, creating new BIP 32 Hierarchical Deterministic wallets has been supported by Bitcoin Core but old non-HD wallets could not be upgraded to HD. Now non-HD wallets can be upgraded to HD using the `-upgradewallet` command line option. This upgrade will result in the all keys in the keypool being marked as used and a new keypool generated. **A new backup must be made when this upgrade is performed.**

Additionally, `-upgradewallet` can be used to upgraded from a non-split HD chain (all keys generated with `m/0'/0'/i'`) to a split HD chain (receiving keys generated with `'m/0'/0'/i'` and change keys generated with `m'/0'/1'/i'`). When this upgrade occurs, all keys already in the keypool will remain in the keypool to be used until all keys from before the upgrade are exhausted. This is to avoid issues with backups and downgrades when some keys may come from the change key keypool. Users can begin using the new split HD chain keypools by using the `newkeypool` RPC to mark all keys in the keypool as used and begin using a new keypool generated from the split HD chain.

HD Master key rotation

A new RPC, `sethdseed`, has been introduced which allows users to set a new HD seed or set their own HD seed. This allows for a new HD seed to be used. **A new backup must be made when a new HD seed is set.**

Low-level RPC changes

- The new RPC `scantxoutset` can be used to scan the UTXO set for entries
  that match certain output descriptors. Refer to the [output descriptors
  reference documentation](doc/ for more details. This call
  is similar to `listunspent` but does not use a wallet, meaning that the
  wallet can be disabled at compile or run time. This call is experimental,
  as such, is subject to changes or removal in future releases.

- The `createrawtransaction` RPC will now accept an array or dictionary (kept for compatibility) for the `outputs` parameter. This means the order of transaction outputs can be specified by the client.
- The `fundrawtransaction` RPC will reject the previously deprecated `reserveChangeKey` option.
- `sendmany` now shuffles outputs to improve privacy, so any previously expected behavior with regards to output ordering can no longer be relied upon.
- The new RPC `testmempoolaccept` can be used to test acceptance of a transaction to the mempool without adding it.
- JSON transaction decomposition now includes a `weight` field which provides
  the transaction's exact weight. This is included in REST /rest/tx/ and
  /rest/block/ endpoints when in json mode. This is also included in `getblock`
  (with verbosity=2), `listsinceblock`, `listtransactions`, and
  `getrawtransaction` RPC commands.
- New `fees` field introduced in `getrawmempool`, `getmempoolancestors`, `getmempooldescendants` and
   `getmempoolentry` when verbosity is set to `true` with sub-fields `ancestor`, `base`, `modified`
   and `descendant` denominated in BTC. This new field deprecates previous fee fields, such as
   `fee`, `modifiedfee`, `ancestorfee` and `descendantfee`.
- The new RPC `getzmqnotifications` returns information about active ZMQ
- When bitcoin is not started with any `-wallet=<path>` options, the name of
  the default wallet returned by `getwalletinfo` and `listwallets` RPCs is
  now the empty string `""` instead of `"wallet.dat"`. If bitcoin is started
  with any `-wallet=<path>` options, there is no change in behavior, and the
  name of any wallet is just its `<path>` string.
- Passing an empty string (`""`) as the `address_type` parameter to
  `getnewaddress`, `getrawchangeaddress`, `addmultisigaddress`,
  `fundrawtransaction` RPCs is now an error. Previously, this would fall back
  to using the default address type. It is still possible to pass null or leave
  the parameter unset to use the default address type.

- Bare multisig outputs to our keys are no longer automatically treated as
  incoming payments. As this feature was only available for multisig outputs for
  which you had all private keys in your wallet, there was generally no use for
  them compared to single-key schemes. Furthermore, no address format for such
  outputs is defined, and wallet software can't easily send to it. These outputs
  will no longer show up in `listtransactions`, `listunspent`, or contribute to
  your balance, unless they are explicitly watched (using `importaddress` or
  `importmulti` with hex script argument). `signrawtransaction*` also still
  works for them.

- The `getwalletinfo` RPC method now returns an `hdseedid` value, which is always the same as the incorrectly-named `hdmasterkeyid` value. `hdmasterkeyid` will be removed in V0.18.
- The `getaddressinfo` RPC method now returns an `hdseedid` value, which is always the same as the incorrectly-named `hdmasterkeyid` value. `hdmasterkeyid` will be removed in V0.18.

- Parts of the `validateaddress` RPC method have been deprecated and moved to
  `getaddressinfo`. Clients must transition to using `getaddressinfo` to access
  this information before upgrading to v0.18. The following deprecated fields
  have moved to `getaddressinfo` and will only be shown with
  `-deprecatedrpc=validateaddress`: `ismine`, `iswatchonly`, `script`, `hex`,
  `pubkeys`, `sigsrequired`, `pubkey`, `addresses`, `embedded`, `iscompressed`,
  `account`, `timestamp`, `hdkeypath`, `hdmasterkeyid`.
- `signrawtransaction` is deprecated and will be fully removed in v0.18. To use
  `signrawtransaction` in v0.17, restart bitcoind with
  `-deprecatedrpc=signrawtransaction`. Projects should transition to using
  `signrawtransactionwithkey` and `signrawtransactionwithwallet` before
  upgrading to v0.18.

Other API changes

- The `inactivehdmaster` property in the `dumpwallet` output has been corrected to `inactivehdseed`

### Logging

- The log timestamp format is now ISO 8601 (e.g. "2018-02-28T12:34:56Z").

- When running bitcoind with `-debug` but without `-daemon`, logging to stdout
  is now the default behavior. Setting `-printtoconsole=1` no longer implicitly
  disables logging to debug.log. Instead, logging to file can be explicitly disabled
  by setting `-debuglogfile=0`.

Transaction index changes

The transaction index is now built separately from the main node procedure,
meaning the `-txindex` flag can be toggled without a full reindex. If bitcoind
is run with `-txindex` on a node that is already partially or fully synced
without one, the transaction index will be built in the background and become
available once caught up. When switching from running `-txindex` to running
without the flag, the transaction index database will *not* be deleted
automatically, meaning it could be turned back on at a later time without a full

Miner block size removed

The `-blockmaxsize` option for miners to limit their blocks' sizes was
deprecated in V0.15.1, and has now been removed. Miners should use the
`-blockmaxweight` option if they want to limit the weight of their blocks.

Python Support

Support for Python 2 has been discontinued for all test files and tools.
39  Bitcoin / Bitcoin Technical Support / Re: trouble syncing new install? on: October 03, 2018, 01:21:17 AM
definitely not overclocked, never do that. has the factory cooler and i just blasted everything with air sunday night.

recently ran a bunch of memtests, both using windows built in diagnostic and memtest86. results were... inconclusive? i've been having random hard crashes where the whole system locks up for over a year now. but recently finally replaced the SSD and reinstalled windows, as well as the video card. after that and blasting the insides with air sunday it's been running fine.

HDD looks to have a warning about some sectors if i'm interpreting HDDscan correctly. not surprisingly, it's 8 years old. i'll do some investigation on that and probasbly replace the drive when i can.
Usually these kind of issues are due to bad memory. If memtests were inconclusive, you might want to consider replacing or removing some of your RAM to see if you can identify which modules are bad.
40  Bitcoin / Development & Technical Discussion / Re: [Discussion] Dandelion - A protocol to hide transaction origin on: October 03, 2018, 01:18:37 AM
Suppose I automatically generate two dandelion transactions, with some relationship with each other, like parent/child and relay them at the same time.  Not seeing the first transaction makes the second invalid, but if they both relay through dandelion, won't there be situations where the second transaction is seen by the Bitcoin network first and rejected as invalid because the first is still swimming around in dandelion relays somewhere?
You would have the same problem today. If you relayed both transactions to your peers at the same time, the second would also be invalid because the first hadn't propagated fully yet. The solution to this "problem" is to wait a few seconds before sending the second transaction. With Dandelion, it is easier to tell if the network has heard your transaction because you will get INVs from the rest of your peers (the ones you hadn't sent the tx to) saying that they have your transaction. At that point, you can broadcast the second one.

Or are both somehow routing through the same route?  Huh
They could be routed through the same route. For a given inbound connection, all dandelion transactions received from the connection must be sent through the same outbound connection. As the creator of a transaction, you can choose which outbound connection you wish sent your dandelion transaction to. So if you choose the same node as the first one, then your transaction will most likely end up going through the same route. Of course, each node should also be periodically reselecting which outbound node they will send dandelion transactions to for each incoming connection, so it is possible that you will end up with a different route.

Additionally, from what I read, every dandelion ready node can turn any dandelion transaction into a normal Bitcoin transaction and broadcast it.  There isn't anything like onion routing preventing intermediaries from reading what they're sending along in the next hop.  What if you set up a few nodes, but instead of "fluffing" a transaction 10% of the time, you do it 50%.  Doesn't that degrade the overall security assumptions?
What security assumptions?

All that Dandelion guarantees is that an adversary will have a harder time connecting transactions to IP addresses. Even if you have a node that fluffs 100% of the time, this guarantee still holds because it is not you who sent the transaction to the network, it was someone else. So long as you follow the protocol, your transactions will be harder to deanonymize. Furthermore, you don't stick with the same outbound peer forever. You change which peer to relay dandelion transactions to periodically, so eventually you will get an honest node.
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