Inside Bitcoin

251- The `resendwallettransactions` RPC throws an error if the `-walletbroadcast` option is set to false (See [PR 10995](https://github.com/bitcoin/bitcoin/pull/10995)).
252
253- The second argument in the `submitblock` RPC argument has been renamed from `parameters` to `dummy`. This argument never had any effect, and the renaming is simply to communicate this fact to the user (See [PR 10191](https://github.com/bitcoin/bitcoin/pull/10191))
254  (Clients should, however, use positional arguments for `submitblock` in order to be compatible with BIP 22.)
255
256- The `verbose` argument of `getblock` has been renamed to `verbosity` and now takes an integer from 0 to 2. Verbose level 0 is equivalent to `verbose=false`. Verbose level 1 is equivalent to `verbose=true`. Verbose level 2 will give the full transaction details of each transaction in the output as given by `getrawtransaction`. The old behavior of using the `verbose` named argument and a boolean value is still maintained for compatibility.
257
258- Error codes have been updated to be more accurate for the following error cases (See [PR 9853](https://github.com/bitcoin/bitcoin/pull/9853)):
259  - `getblock` now returns RPC_MISC_ERROR if the block can't be found on disk (for
260  example if the block has been pruned). Previously returned RPC_INTERNAL_ERROR.
261  - `pruneblockchain` now returns RPC_MISC_ERROR if the blocks cannot be pruned
262  because the node is not in pruned mode. Previously returned RPC_METHOD_NOT_FOUND.
263  - `pruneblockchain` now returns RPC_INVALID_PARAMETER if the blocks cannot be pruned
264  because the supplied timestamp is too late. Previously returned RPC_INTERNAL_ERROR.
265  - `pruneblockchain` now returns RPC_MISC_ERROR if the blocks cannot be pruned
266  because the blockchain is too short. Previously returned RPC_INTERNAL_ERROR.
267  - `setban` now returns RPC_CLIENT_INVALID_IP_OR_SUBNET if the supplied IP address
268  or subnet is invalid. Previously returned RPC_CLIENT_NODE_ALREADY_ADDED.
269  - `setban` now returns RPC_CLIENT_INVALID_IP_OR_SUBNET if the user tries to unban
270  a node that has not previously been banned. Previously returned RPC_MISC_ERROR.
271  - `removeprunedfunds` now returns RPC_WALLET_ERROR if `bitcoind` is unable to remove
272  the transaction. Previously returned RPC_INTERNAL_ERROR.
273  - `removeprunedfunds` now returns RPC_INVALID_PARAMETER if the transaction does not
274  exist in the wallet. Previously returned RPC_INTERNAL_ERROR.
275  - `fundrawtransaction` now returns RPC_INVALID_ADDRESS_OR_KEY if an invalid change
276  address is provided. Previously returned RPC_INVALID_PARAMETER.
277  - `fundrawtransaction` now returns RPC_WALLET_ERROR if `bitcoind` is unable to create
278  the transaction. The error message provides further details. Previously returned
279  RPC_INTERNAL_ERROR.
280  - `bumpfee` now returns RPC_INVALID_PARAMETER if the provided transaction has
281  descendants in the wallet. Previously returned RPC_MISC_ERROR.
282  - `bumpfee` now returns RPC_INVALID_PARAMETER if the provided transaction has
283  descendants in the mempool. Previously returned RPC_MISC_ERROR.
284  - `bumpfee` now returns RPC_WALLET_ERROR if the provided transaction has
285  has been mined or conflicts with a mined transaction. Previously returned
286  RPC_INVALID_ADDRESS_OR_KEY.
287  - `bumpfee` now returns RPC_WALLET_ERROR if the provided transaction is not
288  BIP 125 replaceable. Previously returned RPC_INVALID_ADDRESS_OR_KEY.
289  - `bumpfee` now returns RPC_WALLET_ERROR if the provided transaction has already
290  been bumped by a different transaction. Previously returned RPC_INVALID_REQUEST.
291  - `bumpfee` now returns RPC_WALLET_ERROR if the provided transaction contains
292  inputs which don't belong to this wallet. Previously returned RPC_INVALID_ADDRESS_OR_KEY.
293  - `bumpfee` now returns RPC_WALLET_ERROR if the provided transaction has multiple change
294  outputs. Previously returned RPC_MISC_ERROR.
295  - `bumpfee` now returns RPC_WALLET_ERROR if the provided transaction has no change
296  output. Previously returned RPC_MISC_ERROR.
297  - `bumpfee` now returns RPC_WALLET_ERROR if the fee is too high. Previously returned
298  RPC_MISC_ERROR.
299  - `bumpfee` now returns RPC_WALLET_ERROR if the fee is too low. Previously returned
300  RPC_MISC_ERROR.
301  - `bumpfee` now returns RPC_WALLET_ERROR if the change output is too small to bump the
302  fee. Previously returned RPC_MISC_ERROR.
303
3040.15.0 Change log
305=================
306
307### RPC and other APIs
308- #9485 `61a640e` ZMQ example using python3 and asyncio (mcelrath)
309- #9894 `0496e15` remove 'label' filter for rpc command help (instagibbs)
310- #9853 `02bd6e9` Fix error codes from various RPCs (jnewbery)
311- #9842 `598ef9c` Fix RPC failure testing (continuation of #9707) (jnewbery)
312- #10038 `d34995a` Add mallocinfo mode to `getmemoryinfo` RPC (laanwj)
313- #9500 `3568b30` [Qt][RPC] Autocomplete commands for 'help' command in debug console (achow101)
314- #10056 `e6156a0` [zmq] Call va_end() on va_start()ed args (kallewoof)
315- #10086 `7438cea` Trivial: move rpcserialversion into RPC option group (jlopp)
316- #10150 `350b224` [rpc] Add logging rpc (jnewbery)
317- #10208 `393160c` [wallet] Rescan abortability (kallewoof)
318- #10143 `a987def` [net] Allow disconnectnode RPC to be called with node id (jnewbery)
319- #10281 `0e8499c` doc: Add RPC interface guidelines (laanwj)
320- #9733 `d4732f3` Add getchaintxstats RPC (sipa)
321- #10310 `f4b15e2` [doc] Add hint about getmempoolentry to getrawmempool help (kallewoof)
322- #8704 `96c850c` [RPC] Transaction details in getblock (achow101)
323- #8952 `9390845` Add query options to listunspent RPC call (pedrobranco)
324- #10413 `08ac35a` Fix docs (there's no rpc command setpaytxfee) (RHavar)
325- #8384 `e317c0d` Add witness data output to TxInError messages (instagibbs)
326- #9571 `4677151` RPC: getblockchaininfo returns BIP signaling statistics  (pinheadmz)
327- #10450 `ef2d062` Fix bumpfee rpc "errors" return value (ryanofsky)
328- #10475 `39039b1` [RPC] getmempoolinfo mempoolminfee is a BTC/KB feerate (instagibbs)
329- #10478 `296928e` rpc: Add listen address to incoming connections in `getpeerinfo` (laanwj)
330- #10403 `08d0390` Fix importmulti failure to return rescan errors (ryanofsky)
331- #9740 `9fec4da` Add friendly output to dumpwallet (aideca)
332- #10426 `16f6c98` Replace bytes_serialized with bogosize (sipa)
333- #10252 `980deaf` RPC/Mining: Restore API compatibility for prioritisetransaction (luke-jr)
334- #9672 `46311e7` Opt-into-RBF for RPC & bitcoin-tx (luke-jr)
335- #10481 `9c248e3` Decodehextx scripts sanity check  (achow101)
336- #10488 `fa1f106` Note that the prioritizetransaction dummy value is deprecated, and has no meaning (TheBlueMatt)
337- #9738 `c94b89e` gettxoutproof() should return consistent result (jnewbery)
338- #10191 `00350bd` [trivial] Rename unused RPC arguments 'dummy' (jnewbery)
339- #10627 `b62b4c8` fixed listunspent rpc convert parameter (tnakagawa)
340- #10412 `bef02fb` Improve wallet rescan API (ryanofsky)
341- #10400 `1680ee0` [RPC] Add an uptime command that displays the amount of time (in seconds) bitcoind has been running (rvelhote)
342- #10683 `d81bec7` rpc: Move the `generate` RPC call to rpcwallet (laanwj)
343- #10710 `30bc0f6` REST/RPC example update (Mirobit)
344- #10747 `9edda0c` [rpc] fix verbose argument for getblock in bitcoin-cli (jnewbery)
345- #10589 `104f5f2` More economical fee estimates for RBF and RPC options to control (morcos)
346- #10543 `b27b004` Change API to estimaterawfee (morcos)
347- #10807 `afd2fca` getbalance example covers at least 6 confirms (instagibbs)
348- #10707 `75b5643` Better API for estimatesmartfee RPC  (morcos)
349- #10784 `9e8d6a3` Do not allow users to get keys from keypool without reserving them (TheBlueMatt)
350- #10857 `d445a2c` [RPC] Add a deprecation warning to getinfo's output (achow101)
351- #10571 `adf170d` [RPC]Move transaction combining from signrawtransaction to new RPC (achow101)
352- #10783 `041dad9` [RPC] Various rpc argument fixes (instagibbs)
353- #9622 `6ef3c7e` [rpc] listsinceblock should include lost transactions when parameter is a reorg'd block (kallewoof)
354- #10799 `8537187` Prevent user from specifying conflicting parameters to fundrawtx (TheBlueMatt)
355- #10931 `0b11a07` Fix misleading "Method not found" multiwallet errors (ryanofsky)
356- #10788 `f66c596` [RPC] Fix addwitnessaddress by replacing ismine with producesignature (achow101)
357- #10999 `627c3c0` Fix amounts formatting in `decoderawtransaction` (laanwj)
358- #11002 `4268426` [wallet] return correct error code from resendwallettransaction (jnewbery)
359- #11029 `96a63a3` [RPC] trivial: gettxout no longer shows version of tx (FelixWeis)
360- #11083 `6c2b008` Fix combinerawtransaction RPC help result section (jonasnick)
361- #11027 `07164bb` [RPC] Only return hex field once in getrawtransaction (achow101)
362- #10698 `5af6572` Be consistent in calling transactions "replaceable" for Opt-In RBF (TheBlueMatt)
363
364### Block and transaction handling
365- #9801 `a8c5751` Removed redundant parameter from mempool.PrioritiseTransaction (gubatron)
366- #9819 `1efc99c` Remove harmless read of unusued priority estimates (morcos)
367- #9822 `b7547fa` Remove block file location upgrade code (benma)
368- #9602 `30ff3a2` Remove coin age priority and free transactions - implementation (morcos)
369- #9548 `47510ad` Remove min reasonable fee (morcos)
370- #10249 `c73af54` Switch CCoinsMap from boost to std unordered_map (sipa)
371- #9966 `2a183de` Control mempool persistence using a command line parameter (jnewbery)
372- #10199 `318ea50` Better fee estimates (morcos)
373- #10196 `bee3529` Bugfix: PrioritiseTransaction updates the mempool tx counter (sdaftuar)
374- #10195 `1088b02` Switch chainstate db and cache to per-txout model (sipa)
375- #10284 `c2ab38b` Always log debug information for fee calculation in CreateTransaction (morcos)
376- #10503 `efbcf2b` Use REJECT_DUPLICATE for already known and conflicted txn (sipa)
377- #10537 `b3eb0d6` Few Minor per-utxo assert-semantics re-adds and tweak (TheBlueMatt)
378- #10626 `8c841a3` doc: Remove outdated minrelaytxfee comment (MarcoFalke)
379- #10559 `234ffc6` Change semantics of HaveCoinInCache to match HaveCoin (morcos)
380- #10581 `7878353` Simplify return values of GetCoin/HaveCoin(InCache) (sipa)
381- #10684 `a381f6a` Remove no longer used mempool.exists(outpoint) (morcos)
382- #10148 `d4e551a` Use non-atomic flushing with block replay (sipa)
383- #10685 `30c2130` Clarify CCoinsViewMemPool documentation (TheBlueMatt)
384- #10558 `90a002e` Address nits from per-utxo change (morcos)
385- #10706 `6859ad2` Improve wallet fee logic and fix GUI bugs (morcos)
386- #10526 `754aa02` Force on-the-fly compaction during pertxout upgrade (sipa)
387- #10985 `d896d5c` Add undocumented -forcecompactdb to force LevelDB compactions (sipa)
388- #10292 `e4bbd3d` Improved efficiency in COutPoint constructors (mm-s)
389- #10290 `8d6d43e` Add -stopatheight for benchmarking (sipa)
390
391### P2P protocol and network code
392- #9726 `7639d38` netbase: Do not print an error on connection timeouts through proxy (laanwj)
393- #9805 `5b583ef` Add seed.btc.petertodd.org to mainnet DNS seeds (petertodd)
394- #9861 `22f609f` Trivial: Debug log ambiguity fix for peer addrs (keystrike)
395- #9774 `90cb2a2` Enable host lookups for -proxy and -onion parameters (jmcorgan)
396- #9558 `7b585cf` Clarify assumptions made about when BlockCheck is called (TheBlueMatt)
397- #10135 `e19586a` [p2p] Send the correct error code in reject messages (jnewbery)
398- #9665 `eab00d9` Use cached [compact] blocks to respond to getdata messages (TheBlueMatt)
399- #10215 `a077a90` Check interruptNet during dnsseed lookups (TheBlueMatt)
400- #10234 `faf2dea` [net] listbanned RPC and QT should show correct banned subnets (jnewbery)
401- #10134 `314ebdf` [qa] Fixes segwit block relay test after inv-direct-fetch was disabled (sdaftuar)
402- #10351 `3f57c55` removed unused code in INV message (Greg-Griffith)
403- #10061 `ae78609` [net] Added SetSocketNoDelay() utility function (tjps)
404- #10408 `28c6e8d` Net: Improvements to Tor control port parser (str4d)
405- #10460 `5c63d66` Broadcast address every day, not 9 hours (sipa)
406- #10471 `400fdd0` Denote functions CNode::GetRecvVersion() and CNode::GetRefCount()  as const (pavlosantoniou)
407- #10345 `67700b3` [P2P] Timeout for headers sync (sdaftuar)
408- #10564 `8d9f45e` Return early in IsBanned (gmaxwell)
409- #10587 `de8db47` Net: Fix resource leak in ReadBinaryFile(...) (practicalswift)
410- #9549 `b33ca14` [net] Avoid possibility of NULL pointer dereference in MarkBlockAsInFlight(...) (practicalswift)
411- #10446 `2772dc9` net: avoid extra dns query per seed (theuni)
412- #10824 `9dd6a2b` Avoid unnecessary work in SetNetworkActive (promag)
413- #10948 `df3a6f4` p2p: Hardcoded seeds update pre-0.15 branch (laanwj)
414- #10977 `02f4c4a` [net] Fix use of uninitialized value in getnetworkinfo(const JSONRPCRequest&) (practicalswift)
415- #10982 `c8b62c7` Disconnect network service bits 6 and 8 until Aug 1, 2018 (TheBlueMatt)
416- #11012 `0e5cff6` Make sure to clean up mapBlockSource if we've already seen the block (theuni)
417
418### Validation
419- #9725 `67023e9` CValidationInterface Cleanups (TheBlueMatt)
420- #10178 `2584925` Remove CValidationInterface::UpdatedTransaction (TheBlueMatt)
421- #10201 `a6548a4` pass Consensus::Params& to functions in validation.cpp and make them static (mariodian)
422- #10297 `431a548` Simplify DisconnectBlock arguments/return value (sipa)
423- #10464 `f94b7d5` Introduce static DoWarning (simplify UpdateTip) (jtimon)
424- #10569 `2e7d8f8` Fix stopatheight (achow101)
425- #10192 `2935b46` Cache full script execution results in addition to signatures (TheBlueMatt)
426- #10179 `21ed30a` Give CValidationInterface Support for calling notifications on the CScheduler Thread (TheBlueMatt)
427- #10557 `66270a4` Make check to distinguish between orphan txs and old txs more efficient (morcos)
428- #10775 `7c2400c` nCheckDepth chain height fix (romanornr)
429- #10821 `16240f4` Add SSE4 optimized SHA256 (sipa)
430- #10854 `04d395e` Avoid using sizes on non-fixed-width types to derive protocol constants (gmaxwell)
431- #10945 `2a50b11` Update defaultAssumeValid according to release-process.md (gmaxwell)
432- #10986 `2361208` Update chain transaction statistics (sipa)
433- #11028 `6bdf4b3` Avoid masking of difficulty adjustment errors by checkpoints (sipa)
434- #9533 `cb598cf` Allow non-power-of-2 signature cache sizes (sipa)
435- #9208 `acd9957` Improve DisconnectTip performance (sdaftuar)
436- #10618 `f90603a` Remove confusing MAX_BLOCK_BASE_SIZE (gmaxwell)
437- #10758 `bd92424` Fix some chainstate-init-order bugs (TheBlueMatt)
438- #10550 `b7296bc` Don't return stale data from CCoinsViewCache::Cursor() (ryanofsky)
439- #10998 `2507fd5` Fix upgrade cancel warnings (TheBlueMatt)
440- #9868 `cbdb473` Abstract out the command line options for block assembly (sipa)
441
442### Build system
443- #9727 `5f0556d` Remove fallbacks for boost_filesystem < v3 (laanwj)
444- #9788 `50a2265` gitian: bump descriptors for master (theuni)
445- #9794 `7ca2f54` Minor update to qrencode package builder (mitchellcash)
446- #9514 `2cc0df1` release: Windows signing script (theuni)
447- #9921 `8b789d8` build: Probe MSG_DONTWAIT in the same way as MSG_NOSIGNAL (laanwj)
448- #10011 `32d1b34` build: Fix typo s/HAVE_DONTWAIT/HAVE_MSG_DONTWAIT (laanwj)
449- #9946 `90dd9e6` Fix build errors if spaces in path or parent directory (pinheadmz)
450- #10136 `81da4c7` build: Disable Wshadow warning (laanwj)
451- #10166 `64962ae` Ignore Doxyfile generated from Doxyfile.in template (paveljanik)
452- #10239 `0416ea9` Make Boost use std::atomic internally (sipa)
453- #10228 `27faa6c` build: regenerate bitcoin-config.h as necessary (theuni)
454- #10273 `8979f45` [scripts] Minor improvements to `macdeployqtplus` script (chrisgavin)
455- #10325 `a26280b` 0.15.0 Depends Updates (fanquake)
456- #10328 `79aeff6` Update contrib/debian to latest Ubuntu PPA upload (TheBlueMatt)
457- #7522 `d25449f` Bugfix: Only use git for build info if the repository is actually the right one (luke-jr)
458- #10489 `e654d61` build: silence gcc7's implicit fallthrough warning (theuni)
459- #10549 `ad1a13e` Avoid printing generic and duplicated "checking for QT" during ./configure (drizzt)
460- #10628 `8465b68` [depends] expat 2.2.1 (fanquake)
461- #10806 `db825d2` build: verify that the assembler can handle crc32 functions (theuni)
462- #10766 `b4d03be` Building Environment: Set ARFLAGS to cr (ReneNyffenegger)
463- #10803 `91edda8` Explicitly search for bdb5.3 (pstratem)
464- #10855 `81560b0` random: only use getentropy on openbsd (theuni)
465- #10508 `1caafa6` Run Qt wallet tests on travis (ryanofsky)
466- #10851 `e222618` depends: fix fontconfig with newer glibc (theuni)
467- #10971 `88b1e4b` build: fix missing sse42 in depends builds (theuni)
468- #11097 `129b03f` gitian: quick hack to fix version string in releases (theuni)
469- #10039 `919aaf6` Fix compile errors with Qt 5.3.2 and Boost 1.55.0 (ryanofsky)
470- #10168 `7032021` Fix build warning from #error text (jnewbery)
471- #10301 `318392c` Check if sys/random.h is required for getentropy (jameshilliard)
472
473### GUI
474- #9724 `1a9fd5c` Qt/Intro: Add explanation of IBD process (luke-jr)
475- #9834 `b00ba62` qt: clean up initialize/shutdown signals (benma)
476- #9481 `ce01e62` [Qt] Show more significant warning if we fall back to the default fee (jonasschnelli)
477- #9974 `b9f930b` Add basic Qt wallet test (ryanofsky)
478- #9690 `a387d3a` Change 'Clear' button string to 'Reset' (da2x)
479- #9592 `9c7b7cf` [Qt] Add checkbox in the GUI to opt-in to RBF when creating a transaction (ryanofsky)
480- #10098 `2b477e6` Make qt wallet test compatible with qt4 (ryanofsky)
481- #9890 `1fa4ae6` Add a button to open the config file in a text editor (ericshawlinux)
482- #10156 `51833a1` Fix for issues with startup and multiple monitors on windows (AllanDoensen)
483- #10177 `de01da7` Changed "Send" button default status from true to false (KibbledJiveElkZoo)
484- #10221 `e96486c` Stop treating coinbase outputs differently in GUI: show them at 1conf (TheBlueMatt)
485- #10231 `987a6c0` [Qt] Reduce a significant cs_main lock freeze (jonasschnelli)
486- #10242 `f6f3b58` [qt] Don't call method on null WalletModel object (ryanofsky)
487- #10093 `a3e756b` [Qt] Don't add arguments of sensitive command to console window (jonasschnelli)
488- #10362 `95546c8` [GUI] Add OSX keystroke to RPCConsole info (spencerlievens)
489- #9697 `962cd3f` [Qt] simple fee bumper with user verification (jonasschnelli)
490- #10390 `e477516` [wallet] remove minimum total fee option (instagibbs)
491- #10420 `4314544` Add Qt tests for wallet spends & bumpfee (ryanofsky)
492- #10454 `c1c9a95` Fix broken q4 test build (ryanofsky)
493- #10449 `64beb13` Overhaul Qt fee bumper (jonasschnelli)
494- #10582 `7c72fb9` Pass in smart fee slider value to coin control dialog (morcos)
495- #10673 `4c72cc3` [qt] Avoid potential null pointer dereference in TransactionView::exportClicked() (practicalswift)
496- #10769 `8fdd23a` [Qt] replace fee slider with a Dropdown, extend conf. targets (jonasschnelli)
497- #10870 `412b466` [Qt] Use wallet 0 in rpc console if running with multiple wallets (jonasschnelli)
498- #10988 `a9dd111` qt: Increase BLOCK_CHAIN_SIZE constants (laanwj)
499- #10644 `e292140` Slightly overhaul NSI pixmaps (jonasschnelli)
500- #10660 `0c3542e` Allow to cancel the txdb upgrade via splashscreen keypress 'q' (jonasschnelli)