Bitcoin Core Version 0.14.0 Released

Compatibility

Bitcoin Core is extensively tested on multiple operating systems using the Linux kernel, macOS 10.8+, and Windows Vista and later.

Microsoft ended support for Windows XP on April 8th, 2014, No attempt is made to prevent installing or running the software on Windows XP, you can still do so at your own risk but be aware that there are known instabilities and issues. Please do not report issues about Windows XP to the issue tracker.

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

Notable changes

Performance Improvements

Validation speed and network propagation performance have been greatly improved, leading to much shorter sync and initial block download times.

• The script signature cache has been reimplemented as a “cuckoo cache”, allowing for more signatures to be cached and faster lookups.
• Assumed-valid blocks have been introduced which allows script validation to be skipped for ancestors of known-good blocks, without changing the security model. See below for more details.
• In some cases, compact blocks are now relayed before being fully validated as per BIP152.
• P2P networking has been refactored with a focus on concurrency and throughput. Network operations are no longer bottlenecked by validation. As a result, block fetching is several times faster than previous releases in many cases.
• The UTXO cache now claims unused mempool memory. This speeds up initial block download as UTXO lookups are a major bottleneck there, and there is no use for the mempool at that stage.

Manual Pruning

Bitcoin Core has supported automatically pruning the blockchain since 0.11. Pruning the blockchain allows for significant storage space savings as the vast majority of the downloaded data can be discarded after processing so very little of it remains on the disk.

Manual block pruning can now be enabled by setting -prune=1. Once that is set, the RPC command pruneblockchain can be used to prune the blockchain up to the specified height or timestamp.

getinfo has been deprecated

The getinfo RPC command has been deprecated. Each field in the RPC call has been moved to another command’s output with that command also giving additional information that getinfo did not provide. The following table shows where each field has been moved to:

ZMQ On Windows

Previously the ZeroMQ notification system was unavailable on Windows due to various issues with ZMQ. These have been fixed upstream and now ZMQ can be used on Windows. Please see this document for help with using ZMQ in general.

Nested RPC Commands in Debug Console

The ability to nest RPC commands has been added to the debug console. This allows users to have the output of a command become the input to another command without running the commands separately.

The nested RPC commands use bracket syntax (i.e. getwalletinfo()) and can be nested (i.e. getblock(getblockhash(1))). Simple queries can be done with square brackets where object values are accessed with either an array index or a non-quoted string. Both commas and spaces can be used to separate parameters in both the bracket syntax and normal RPC command syntax.

Network Activity Toggle

A RPC command and GUI toggle have been added to enable or disable all p2p network activity. The network status icon in the bottom right hand corner is now the GUI toggle. Clicking the icon will either enable or disable all p2p network activity. If network activity is disabled, the icon will be grayed out with an X on top of it.

Additionally the setnetworkactive RPC command has been added which does the same thing as the GUI icon. The command takes one boolean parameter, true enables networking and false disables it.

Out-of-sync Modal Info Layer

When Bitcoin Core is out-of-sync on startup, a semi-transparent information layer will be shown over top of the normal display. This layer contains details about the current sync progress and estimates the amount of time remaining to finish syncing. This layer can also be hidden and subsequently unhidden by clicking on the progress bar at the bottom of the window.

Support for JSON-RPC Named Arguments

Commands sent over the JSON-RPC interface and through the bitcoin-cli binary can now use named arguments. This follows the JSON-RPC specification for passing parameters by-name with an object.

bitcoin-cli has been updated to support this by parsing name=value arguments when the -named option is given.

Some examples:

src/bitcoin-cli -named help command="help" src/bitcoin-cli -named getblockhash height=0 src/bitcoin-cli -named getblock blockhash=000000000019d6689c085ae165831e934... src/bitcoin-cli -named sendtoaddress address="(snip)" amount="1.0" subtractfeefromamount=true

The order of arguments doesn’t matter in this case. Named arguments are also useful to leave out arguments that should stay at their default value. The rarely-used arguments comment and comment_to to sendtoaddress, for example, can be left out. However, this is not yet implemented for many RPC calls, this is expected to land in a later release.

The RPC server remains fully backwards compatible with positional arguments.

Opt into RBF When Sending

A new startup option, -walletrbf, has been added to allow users to have all transactions sent opt into RBF support. The default value for this option is currently false, so transactions will not opt into RBF by default. The new bumpfee RPC can be used to replace transactions that opt into RBF.

Sensitive Data Is No Longer Stored In Debug Console History

The debug console maintains a history of previously entered commands that can be accessed by pressing the Up-arrow key so that users can easily reuse previously entered commands. Commands which have sensitive information such as passphrases and private keys will now have a (...) in place of the parameters when accessed through the history.

Retaining the Mempool Across Restarts

The mempool will be saved to the data directory prior to shutdown to a mempool.dat file. This file preserves the mempool so that when the node restarts the mempool can be filled with transactions without waiting for new transactions to be created. This will also preserve any changes made to a transaction through commands such as prioritisetransaction so that those changes will not be lost.

Final Alert

The Alert System was disabled and deprecated in Bitcoin Core 0.12.1 and removed in 0.13.0. The Alert System was retired with a maximum sequence final alert which causes any nodes supporting the Alert System to display a static hard-coded “Alert Key Compromised” message which also prevents any other alerts from overriding it. This final alert is hard-coded into this release so that all old nodes receive the final alert.

GUI Changes

• After resetting the options by clicking the Reset Options button in the options dialog or with the -resetguioptions startup option, the user will be prompted to choose the data directory again. This is to ensure that custom data directories will be kept after the option reset which clears the custom data directory set via the choose datadir dialog.
• Multiple peers can now be selected in the list of peers in the debug window. This allows for users to ban or disconnect multiple peers simultaneously instead of banning them one at a time.
• An indicator has been added to the bottom right hand corner of the main window to indicate whether the wallet being used is a HD wallet. This icon will be grayed out with an X on top of it if the wallet is not a HD wallet.

Low-level RPC changes

• importprunedfunds only accepts two required arguments. Some versions accept an optional third arg, which was always ignored. Make sure to never pass more than two arguments.
• The first boolean argument to getaddednodeinfo has been removed. This is an incompatible change.
• RPC command getmininginfo loses the “testnet” field in favor of the more generic “chain” (which has been present for years).
• A new RPC command preciousblock has been added which marks a block as precious. A precious block will be treated as if it were received earlier than a competing block.
• A new RPC command importmulti has been added which receives an array of JSON objects representing the intention of importing a public key, a private key, an address and script/p2sh
• Use of getrawtransaction for retrieving confirmed transactions with unspent outputs has been deprecated. For now this will still work, but in the future it may change to only be able to retrieve information about transactions in the mempool or if txindex is enabled.
• A new RPC command getmemoryinfo has been added which will return information about the memory usage of Bitcoin Core. This was added in conjunction with optimizations to memory management. See Pull #8753 for more information.
• A new RPC command bumpfee has been added which allows replacing an unconfirmed wallet transaction that signaled RBF (see the -walletrbf startup option above) with a new transaction that pays a higher fee, and should be more likely to get confirmed quickly.

HTTP REST Changes

• UTXO set query responses were changed to return status code HTTP_BAD_REQUEST (400) instead of HTTP_INTERNAL_SERVER_ERROR (500) when requests contain invalid parameters.

Minimum Fee Rate Policies

Since the changes in 0.12 to automatically limit the size of the mempool and improve the performance of block creation in mining code it has not been important for relay nodes or miners to set -minrelaytxfee. With this release the following concepts that were tied to this option have been separated out:

• incremental relay fee used for calculating BIP 125 replacement and mempool limiting. (1000 satoshis/kB)
• calculation of threshold for a dust output. (effectively 3 * 1000 satoshis/kB)
• minimum fee rate of a package of transactions to be included in a block created by the mining code. If miners wish to set this minimum they can use the new -blockmintxfee option. (defaults to 1000 satoshis/kB)

The -minrelaytxfee option continues to exist but is recommended to be left unset.

Fee Estimation Changes

• Since 0.13.2 fee estimation for a confirmation target of 1 block has been disabled. The fee slider will no longer be able to choose a target of 1 block. This is only a minor behavior change as there was often insufficient data for this target anyway. estimatefee 1 will now always return -1 and estimatesmartfee 1 will start searching at a target of 2.

• The default target for fee estimation is changed to 6 blocks in both the GUI (previously 25) and for RPC calls (previously 2).

Removal of Priority Estimation

• Estimation of “priority” needed for a transaction to be included within a target number of blocks has been removed. The RPC calls are deprecated and will either return -1 or 1e24 appropriately. The format for fee_estimates.dat has also changed to no longer save these priority estimates. It will automatically be converted to the new format which is not readable by prior versions of the software.

• Support for “priority” (coin age) transaction sorting for mining is considered deprecated in Core and will be removed in the next major version. This is not to be confused with the prioritisetransaction RPC which will remain supported by Core for adding fee deltas to transactions.

P2P connection management

• Peers manually added through the -addnode option or addnode RPC now have their own limit of eight connections which does not compete with other inbound or outbound connection usage and is not subject to the limitation imposed by the -maxconnections option.

• New connections to manually added peers are performed more quickly.

Introduction of assumed-valid blocks

• A significant portion of the initial block download time is spent verifying scripts/signatures. Although the verification must pass to ensure the security of the system, no other result from this verification is needed: If the node knew the history of a given block were valid it could skip checking scripts for its ancestors.

• A new configuration option ‘assumevalid’ is provided to express this knowledge to the software. Unlike the ‘checkpoints’ in the past this setting does not force the use of a particular chain: chains that are consistent with it are processed quicker, but other chains are still accepted if they’d otherwise be chosen as best. Also unlike ‘checkpoints’ the user can configure which block history is assumed true, this means that even outdated software can sync more quickly if the setting is updated by the user.

• Because the validity of a chain history is a simple objective fact it is much easier to review this setting. As a result the software ships with a default value adjusted to match the current chain shortly before release. The use of this default value can be disabled by setting -assumevalid=0

Fundrawtransaction change address reuse

• Before 0.14, fundrawtransaction was by default wallet stateless. In almost all cases fundrawtransaction does add a change-output to the outputs of the funded transaction. Before 0.14, the used keypool key was never marked as change-address key and directly returned to the keypool (leading to address reuse). Before 0.14, calling getnewaddress directly after fundrawtransaction did generate the same address as the change-output address.

• Since 0.14, fundrawtransaction does reserve the change-output-key from the keypool by default (optional by setting reserveChangeKey, default = true)

• Users should also consider using getrawchangeaddress() in conjunction with fundrawtransaction’s changeAddress option.

Unused mempool memory used by coincache

• Before 0.14, memory reserved for mempool (using the -maxmempool option) went unused during initial block download, or IBD. In 0.14, the UTXO DB cache (controlled with the -dbcache option) borrows memory from the mempool when there is extra memory available. This may result in an increase in memory usage during IBD for those previously relying on only the -dbcache option to limit memory during that time.

0.14.0 Change log

Detailed release notes follow. This overview includes changes that affect behavior, not code moves, minor refactors and string updates. For convenience in locating the code changes and accompanying discussion, both the pull request and git merge commit are mentioned.

RPC and other APIs

• #8421 b77bb95 httpserver: drop boost dependency (theuni)
• #8638 f061415 rest.cpp: change HTTP_INTERNAL_SERVER_ERROR to HTTP_BAD_REQUEST (djpnewton)
• #8272 91990ee Make the dummy argument to getaddednodeinfo optional (sipa)
• #8722 bb843ad bitcoin-cli: More detailed error reporting (laanwj)
• #6996 7f71a3c Add preciousblock RPC (sipa)
• #8788 97c7f73 Give RPC commands more information about the RPC request (jonasschnelli)
• #7948 5d2c8e5 Augment getblockchaininfo bip9_softforks data (mruddy)
• #8980 0e22855 importmulti: Avoid using boost::variant::operator!=, which is only in newer boost versions (luke-jr)
• #9025 4d8558a Getrawtransaction should take a bool for verbose (jnewbery)
• #8811 5754e03 Add support for JSON-RPC named arguments (laanwj)
• #9520 2456a83 Deprecate non-txindex getrawtransaction and better warning (sipa)
• #9518 a65ced1 Return height of last block pruned by pruneblockchain RPC (ryanofsky)
• #9222 7cb024e Add ‘subtractFeeFromAmount’ option to ‘fundrawtransaction’ (dooglus)
• #8456 2ef52d3 Simplified bumpfee command (mrbandrews)
• #9516 727a798 Bug-fix: listsinceblock: use fork point as reference for blocks in reorg’d chains (kallewoof)
• #9640 7bfb770 Bumpfee: bugfixes for error handling and feerate calculation (sdaftuar)
• #9673 8d6447e Set correct metadata on bumpfee wallet transactions (ryanofsky)
• #9650 40f7e27 Better handle invalid parameters to signrawtransaction (TheBlueMatt)
• #9682 edc9e63 Require timestamps for importmulti keys (ryanofsky)
• #9108 d8e8b06 Use importmulti timestamp when importing watch only keys (on top of #9682) (ryanofsky)
• #9756 7a93af8 Return error when importmulti called with invalid address (ryanofsky)
• #9778 ad168ef Add two hour buffer to manual pruning (morcos)
• #9761 9828f9a Use 2 hour grace period for key timestamps in importmulti rescans (ryanofsky)
• #9474 48d7e0d Mark the minconf parameter to move as ignored (sipa)
• #9619 861cb0c Bugfix: RPC/Mining: GBT should return 1 MB sizelimit before segwit activates (luke-jr)
• #9773 9072395 Return errors from importmulti if complete rescans are not successful (ryanofsky)

Block and transaction handling

• #8391 37d83bb Consensus: Remove ISM (NicolasDorier)
• #8365 618c9dd Treat high-sigop transactions as larger rather than rejecting them (sipa)
• #8814 14b7b3f wallet, policy: ParameterInteraction: Don’t allow 0 fee (MarcoFalke)
• #8515 9bdf526 A few mempool removal optimizations (sipa)
• #8448 101c642 Store mempool and prioritization data to disk (sipa)
• #7730 3c03dc2 Remove priority estimation (morcos)
• #9111 fb15610 Remove unused variable UNLIKELY_PCT from fees.h (fanquake)
• #9133 434e683 Unset fImporting for loading mempool (morcos)
• #9179 b9a87b4 Set DEFAULT_LIMITFREERELAY = 0 kB/minute (MarcoFalke)
• #9239 3fbf079 Disable fee estimates for 1-block target (morcos)
• #7562 1eef038 Bump transaction version default to 2 (btcdrak)
• #9313,#9367 If we don’t allow free txs, always send a fee filter (morcos)
• #9346 b99a093 Batch construct batches (sipa)
• #9262 5a70572 Prefer coins that have fewer ancestors, sanity check txn before ATMP (instagibbs)
• #9288 1ce7ede Fix a bug if the min fee is 0 for FeeFilterRounder (morcos)
• #9395 0fc1c31 Add test for -walletrejectlongchains (morcos)
• #9107 7dac1e5 Safer modify new coins (morcos)
• #9312 a72f76c Increase mempool expiry time to 2 weeks (morcos)
• #8610 c252685 Share unused mempool memory with coincache (sipa)
• #9138 f646275 Improve fee estimation (morcos)
• #9408 46b249e Allow shutdown during LoadMempool, dump only when necessary (jonasschnelli)
• #9310 8c87f17 Assert FRESH validity in CCoinsViewCache::BatchWrite (ryanofsky)
• #7871 e2e624d Manual block file pruning (mrbandrews)
• #9507 0595042 Fix use-after-free in CTxMemPool::removeConflicts() (sdaftuar)
• #9380 dd98f04 Separate different uses of minimum fees (morcos)
• #9596 71148b8 bugfix save feeDelta instead of priorityDelta in DumpMempool (morcos)
• #9371 4a1dc35 Notify on removal (morcos)
• #9519 9b4d267 Exclude RBF replacement txs from fee estimation (morcos)
• #8606 e2a1a1e Fix some locks (sipa)
• #8681 6898213 Performance Regression Fix: Pre-Allocate txChanged vector (JeremyRubin)
• #8223 744d265 c++11: Use std::unique_ptr for block creation (domob1812)
• #9125 7490ae8 Make CBlock a vector of shared_ptr of CTransactions (sipa)
• #8930 93566e0 Move orphan processing to ActivateBestChain (TheBlueMatt)
• #8580 46904ee Make CTransaction actually immutable (sipa)
• #9240 a1dcf2e Remove txConflicted (morcos)
• #8589 e8cfe1e Inline CTxInWitness inside CTxIn (sipa)
• #9349 2db4cbc Make CScript (and prevector) c++11 movable (sipa)
• #9252 ce5c1f4 Release cs_main before calling ProcessNewBlock, or processing headers (cmpctblock handling) (sdaftuar)
• #9283 869781c A few more CTransactionRef optimizations (sipa)
• #9499 9c9af5a Use recent-rejects, orphans, and recently-replaced txn for compact-block-reconstruction (TheBlueMatt)
• #9813 3972a8e Read/write mempool.dat as a binary (paveljanik)

P2P protocol and network code

• #8128 1030fa7 Turn net structures into dumb storage classes (theuni)
• #8282 026c6ed Feeler connections to increase online addrs in the tried table (EthanHeilman)
• #8462 53f8f22 Move AdvertiseLocal debug output to net category (Mirobit)
• #8612 84decb5 Check for compatibility with download in FindNextBlocksToDownload (sipa)
• #8594 5b2ea29 Do not add random inbound peers to addrman (gmaxwell)
• #8085 6423116 Begin encapsulation (theuni)
• #8715 881d7ea only delete CConnman if it’s been created (theuni)
• #8707 f07424a Fix maxuploadtarget setting (theuni)
• #8661 d2e4655 Do not set an addr time penalty when a peer advertises itself (gmaxwell)
• #8822 9bc6a6b Consistent checksum handling (laanwj)
• #8936 1230890 Report NodeId in misbehaving debug (rebroad)
• #8968 3cf496d Don’t hold cs_main when calling ProcessNewBlock from a cmpctblock (TheBlueMatt)
• #9002 e1d1f57 Make connect=0 disable automatic outbound connections (gmaxwell)
• #9050 fcf61b8 Make a few values immutable, and use deterministic randomness for the localnonce (theuni)
• #8969 3665483 Decouple peer-processing-logic from block-connection-logic (#2) (TheBlueMatt)
• #8708 c8c572f have CConnman handle message sending (theuni)
• #8709 1e50d22 Allow filterclear messages for enabling TX relay only (rebroad)
• #9045 9f554e0 Hash P2P messages as they are received instead of at process-time (TheBlueMatt)
• #9026 dc6b940 Fix handling of invalid compact blocks (sdaftuar)
• #8996 ab914a6 Network activity toggle (luke-jr)
• #9131 62af164 fNetworkActive is not protected by a lock, use an atomic (jonasschnelli)
• #8872 0c577f2 Remove block-request logic from INV message processing (TheBlueMatt)
• #8690 791b58d Do not fully sort all nodes for addr relay (sipa)
• #9128 76fec09 Decouple CConnman and message serialization (theuni)
• #9226 3bf06e9 Remove fNetworkNode and pnodeLocalHost (gmaxwell)
• #9352 a7f7651 Attempt reconstruction from all compact block announcements (sdaftuar)
• #9319 a55716a Break addnode out from the outbound connection limits (gmaxwell)
• #9261 2742568 Add unstored orphans with rejected parents to recentRejects (morcos)
• #9441 8b66bf7 Massive speedup. Net locks overhaul (theuni)
• #9375 3908fc4 Relay compact block messages prior to full block connection (TheBlueMatt)
• #9400 8a445c5 Set peers as HB peers upon full block validation (instagibbs)
• #9561 6696b46 Wake message handling thread when we receive a new block (TheBlueMatt)
• #9535 82274c0 Split CNode::cs_vSend: message processing and message sending (TheBlueMatt)
• #9606 3f9f962 Consistently use GetTimeMicros() for inactivity checks (sdaftuar)
• #9594 fd70211 Send final alert message to older peers after connecting (gmaxwell)
• #9626 36966a1 Clean up a few CConnman cs_vNodes/CNode things (TheBlueMatt)
• #9609 4966917 Fix remaining net assertions (theuni)
• #9671 7821db3 Fix super-unlikely race introduced in 236618061a445d2cb11e72 (TheBlueMatt)
• #9730 33f3b21 Remove bitseed.xf2.org form the dns seed list (jonasschnelli)
• #9698 2447c10 Fix socket close race (theuni)
• #9708 a06ede9 Clean up all known races/platform-specific UB at the time PR was opened (TheBlueMatt)
• #9715 b08656e Disconnect peers which we do not receive VERACKs from within 60 sec (TheBlueMatt)
• #9720 e87ce95 Fix banning and disallow sending messages before receiving verack (theuni)
• #9268 09c4fd1 Fix rounding privacy leak introduced in #9260 (TheBlueMatt)
• #9075 9346f84 Decouple peer-processing-logic from block-connection-logic (#3) (TheBlueMatt)
• #8688 047ded0 Move static global randomizer seeds into CConnman (sipa)
• #9289 d9ae1ce net: drop boost::thread_group (theuni)

Validation

• #9014 d04aeba Fix block-connection performance regression (TheBlueMatt)
• #9299 d52ce89 Remove no longer needed check for premature v2 txs (morcos)
• #9273 b68685a Remove unused CDiskBlockPos* argument from ProcessNewBlock (TheBlueMatt)
• #8895 b83264d Better SigCache Implementation (JeremyRubin)
• #9490 e126d0c Replace FindLatestBefore used by importmulti with FindEarliestAtLeast (gmaxwell)
• #9484 812714f Introduce assumevalid setting to skip validation presumed valid scripts (gmaxwell)
• #9511 7884956 Don’t overwrite validation state with corruption check (morcos)
• #9765 1e92e04 Harden against mistakes handling invalid blocks (sdaftuar)
• #9779 3c02b95 Update nMinimumChainWork and defaultAssumeValid (gmaxwell)
• #8524 19b0f33 Precompute sighashes (sipa)
• #9791 1825a03 Avoid VLA in hash.h (sipa)

Build system

• #8238 6caf3ee ZeroMQ 4.1.5 && ZMQ on Windows (fanquake)
• #8520 b40e19c Remove check for openssl/ec.h (laanwj)
• #8617 de07fdc Include instructions to extract Mac OS X SDK on Linux using 7zip and SleuthKit (luke-jr)
• #8566 7b98895 Easy to use gitian building script (achow101)
• #8604 f256843 build,doc: Update for 0.13.0+ and OpenBSD 5.9 (laanwj)
• #8640 2663e51 depends: Remove Qt46 package (fanquake)
• #8645 8ea4440 Remove unused Qt 4.6 patch (droark)
• #8608 7e9ab95 Install manpages via make install, also add some autogenerated manpages (nomnombtc)
• #8781 ca69ef4 contrib: delete qt_translations.py (MarcoFalke)
• #8783 64dc645 share: remove qt/protobuf.pri (MarcoFalke)
• #8423 3166dff depends: expat 2.2.0, ccache 3.3.1, fontconfig 2.12.1 (fanquake)
• #8791 b694b0d travis: cross-mac: explicitly enable gui (MarcoFalke)
• #8820 dc64141 depends: Fix Qt compilation with Xcode 8 (fanquake)
• #8730 489a6ab depends: Add libevent compatibility patch for windows (laanwj)
• #8819 c841816 depends: Boost 1.61.0 (fanquake)
• #8826 f560d95 Do not include env_win.cc on non-Windows systems (paveljanik)
• #8948 e077e00 Reorder Windows gitian build order to match Linux (Michagogo)
• #8568 078900d new var DIST_CONTRIB adds useful things for packagers from contrib (nomnombtc)
• #9114 21e6c6b depends: Set OSX_MIN_VERSION to 10.8 (fanquake)
• #9140 018a4eb Bugfix: Correctly replace generated headers and fail cleanly (luke-jr)
• #9156 a8b2a82 Add compile and link options echo to configure (jonasschnelli)
• #9393 03d85f6 Include cuckoocache header in Makefile (MarcoFalke)
• #9420 bebe369 Fix linker error when configured with –enable-lcov (droark)
• #9412 53442af Fix ‘make deploy’ for OSX (jonasschnelli)
• #9475 7014506 Let autoconf detect presence of EVP_MD_CTX_new (luke-jr)
• #9513 bbf193f Fix qt distdir builds (theuni)
• #9471 ca615e6 depends: libevent 2.1.7rc (fanquake)
• #9468 f9117f2 depends: Dependency updates for 0.14.0 (fanquake)
• #9469 01c4576 depends: Qt 5.7.1 (fanquake)
• #9574 5ac6687 depends: Fix QT build on OSX (fanquake)
• #9646 720b579 depends: Fix cross build for qt5.7 (theuni)
• #9705 6a55515 Add options to override BDB cflags/libs (laanwj)
• #8249 4e1567a Enable (and check for) 64-bit ASLR on Windows (laanwj)
• #9758 476cc47 Selectively suppress deprecation warnings (jonasschnelli)
• #9783 6d61a2b release: bump gitian descriptors for a new 0.14 package cache (theuni)
• #9789 749fe95 build: add –enable-werror and warn on vla’s (theuni)
• #9831 99fd85c build: force a c++ standard to be specified (theuni)

GUI

• #8192 c503863 Remove URLs from About dialog translations (fanquake)
• #8540 36404ae Fix random segfault when closing “Choose data directory” dialog (laanwj)
• #8517 2468292 Show wallet HD state in statusbar (jonasschnelli)
• #8463 62a5a8a Remove Priority from coincontrol dialog (MarcoFalke)
• #7579 0606f95 Show network/chain errors in the GUI (jonasschnelli)
• #8583 c19f8a4 Show XTHIN in GUI (rebroad)
• #7783 4335d5a RPC-Console: support nested commands and simple value queries (jonasschnelli)
• #8672 6052d50 Show transaction size in transaction details window (Cocosoft)
• #8777 fec6af7 WalletModel: Expose disablewallet (MarcoFalke)
• #8371 24f72e9 Add out-of-sync modal info layer (jonasschnelli)
• #8885 b2fec4e Fix ban from qt console (theuni)
• #8821 bf8e68a sync-overlay: Don’t block during reindex (MarcoFalke)
• #8906 088d1f4 sync-overlay: Don’t show progress twice (MarcoFalke)
• #8918 47ace42 Add “Copy URI” to payment request context menu (luke-jr)
• #8925 f628d9a Display minimum ping in debug window (rebroad)
• #8774 3e942a7 Qt refactors to better abstract wallet access (luke-jr)
• #8985 7b1bfa3 Use pindexBestHeader instead of setBlockIndexCandidates for NotifyHeaderTip() (jonasschnelli)
• #8989 d2143dc Overhaul smart-fee slider, adjust default confirmation target (jonasschnelli)
• #9043 273bde3 Return useful error message on ATMP failure (MarcoFalke)
• #9088 4e57824 Reduce ambiguity of warning message (rebroad)
• #8874 e984730 Multiple Selection for peer and ban tables (achow101)
• #9145 924745d Make network disabled icon 50% opaque (MarcoFalke)
• #9130 ac489b2 Mention the new network toggle functionality in the tooltip (paveljanik)
• #9218 4d955fc Show progress overlay when clicking spinner icon (laanwj)
• #9280 e15660c Show ModalOverlay by pressing the progress bar, allow hiding (jonasschnelli)
• #9296 fde7d99 Fix missed change to WalletTx structure (morcos)
• #9266 2044e37 Bugfix: Qt/RPCConsole: Put column enum in the right places (luke-jr)
• #9255 9851a84 layoutAboutToChange signal is called layoutAboutToBeChanged (laanwj)
• #9330 47e6a19 Console: add security warning (jonasschnelli)
• #9329 db45ad8 Console: allow empty arguments (jonasschnelli)
• #8877 6dc4c43 Qt RPC console: history sensitive-data filter, and saving input line when browsing history (luke-jr)
• #9462 649cf5f Do not translate tilde character (MarcoFalke)
• #9457 123ea73 Select more files for translation (MarcoFalke)
• #9413 fd7d8c7 CoinControl: Allow non-wallet owned change addresses (jonasschnelli)
• #9461 b250686 Improve progress display during headers-sync and peer-finding (jonasschnelli)
• #9588 5086452 Use nPowTargetSpacing constant (MarcoFalke)
• #9637 d9e4d1d Fix transaction details output-index to reflect vout index (jonasschnelli)
• #9718 36f9d3a Qt/Intro: Various fixes (luke-jr)
• #9735 ec66d06 devtools: Handle Qt formatting characters edge-case in update-translations.py (laanwj)
• #9755 a441db0 Bugfix: Qt/Options: Restore persistent “restart required” notice (luke-jr)
• #9817 7d75a5a Fix segfault crash when shutdown the GUI in disablewallet mode (jonasschnelli)

Wallet

• #8152 b9c1cd8 Remove CWalletDB* parameter from CWallet::AddToWallet (pstratem)
• #8432 c7e05b3 Make CWallet::fFileBacked private (pstratem)
• #8445 f916700 Move CWallet::setKeyPool to private section of CWallet (pstratem)
• #8564 0168019 Remove unused code/conditions in ReadAtCursor (jonasschnelli)
• #8601 37ac678 Add option to opt into full-RBF when sending funds (rebase, original by petertodd) (laanwj)
• #8494 a5b20ed init, wallet: ParameterInteraction() iff wallet enabled (MarcoFalke)
• #8760 02ac669 init: Get rid of some ENABLE_WALLET (MarcoFalke)
• #8696 a1f8d3e Wallet: Remove last external reference to CWalletDB (pstratem)
• #8768 886e8c9 init: Get rid of fDisableWallet (MarcoFalke)
• #8486 ab0b411 Add high transaction fee warnings (MarcoFalke)
• #8851 940748b Move key derivation logic from GenerateNewKey to DeriveNewChildKey (pstratem)
• #8287 e10af96 Set fLimitFree = true (MarcoFalke)
• #8928 c587577 Fix init segfault where InitLoadWallet() calls ATMP before genesis (TheBlueMatt)
• #7551 f2d7056 Add importmulti RPC call (pedrobranco)
• #9016 0dcb888 Return useful error message on ATMP failure (instagibbs)
• #8753 f8723d2 Locked memory manager (laanwj)
• #8828 a4fd8df Move CWalletDB::ReorderTransactions to CWallet (pstratem)
• #8977 6a1343f Refactor wallet/init interaction (Reaccept wtx, flush thread) (jonasschnelli)
• #9036 ed0cc50 Change default confirm target from 2 to 6 (laanwj)
• #9071 d1871da Declare wallet.h functions inline (sipa)
• #9132 f54e460 Make strWalletFile const (jonasschnelli)
• #9141 5ea5e04 Remove unnecessary calls to CheckFinalTx (jonasschnelli)
• #9165 c01f16a SendMoney: use already-calculated balance (instagibbs)
• #9311 a336d13 Flush wallet after abandontransaction (morcos)
• #8717 38e4887 Addition of ImmatureCreditCached to MarkDirty() (spencerlievens)
• #9446 510c0d9 SetMerkleBranch: remove unused code, remove cs_main lock requirement (jonasschnelli)
• #8776 2a524b8 Wallet refactoring leading up to multiwallet (luke-jr)
• #9465 a7d55c9 Do not perform ECDSA signing in the fee calculation inner loop (gmaxwell)
• #9404 12e3112 Smarter coordination of change and fee in CreateTransaction (morcos)
• #9377 fb75cd0 fundrawtransaction: Keep change-output keys by default, make it optional (jonasschnelli)
• #9578 923dc44 Add missing mempool lock for CalculateMemPoolAncestors (TheBlueMatt)
• #9227 02464da Make nWalletDBUpdated atomic to avoid a potential race (pstratem)
• #9764 f8af89a Prevent “overrides a member function but is not marked ‘override’” warnings (laanwj)
• #9771 e43a585 Add missing cs_wallet lock that triggers new lock held assertion (ryanofsky)
• #9316 3097ea4 Disable free transactions when relay is disabled (MarcoFalke)
• #9615 d2c9e4d Wallet incremental fee (morcos)
• #9760 40c754c Remove importmulti always-true check (ryanofsky)

Tests and QA

• #8270 6e5e5ab Tests: Use portable #! in python scripts (/usr/bin/env) (ChoHag)
• #8534,#8504 Remove java comparison tool (laanwj,MarcoFalke)
• #8482 740cff5 Use single cache dir for chains (MarcoFalke)
• #8450 21857d2 Replace rpc_wallet_tests.cpp with python RPC unit tests (pstratem)
• #8671 ddc3080 Minimal fix to slow prevector tests as stopgap measure (JeremyRubin)
• #8680 666eaf0 Address Travis spurious failures (theuni)
• #8789 e31a43c pull-tester: Only print output when failed (MarcoFalke)
• #8810 14e8f99 tests: Add exception error message for JSONRPCException (laanwj)
• #8830 ef0801b test: Add option to run bitcoin-util-test.py manually (jnewbery)
• #8881 e66cc1d Add some verbose logging to bitcoin-util-test.py (jnewbery)
• #8922 0329511 Send segwit-encoded blocktxn messages in p2p-compactblocks (TheBlueMatt)
• #8873 74dc388 Add microbenchmarks to profile more code paths (ryanofsky)
• #9032 6a8be7b test: Add format-dependent comparison to bctest (laanwj)
• #9023 774db92 Add logging to bitcoin-util-test.py (jnewbery)
• #9065 c9bdf9a Merge doc/unit-tests.md into src/test/README.md (laanwj)
• #9069 ed64bce Clean up bctest.py and bitcoin-util-test.py (jnewbery)
• #9095 b8f43e3 test: Fix test_random includes (MarcoFalke)
• #8894 faec09b Testing: Include fRelay in mininode version messages (jnewbery)
• #9097 e536499 Rework sync_* and preciousblock.py (MarcoFalke)
• #9049 71bc39e Remove duplicatable duplicate-input check from CheckTransaction (TheBlueMatt)
• #9136 b422913 sync_blocks cleanup (ryanofsky)
• #9151 4333b1c proxy_test: Calculate hardcoded port numbers (MarcoFalke)
• #9206 e662d28 Make test constant consistent with consensus.h (btcdrak)
• #9139 0de7fd3 Change sync_blocks to pick smarter maxheight (on top of #9196) (ryanofsky)
• #9100 97ec6e5 tx_valid: re-order inputs to how they are encoded (dcousens)
• #9202 e56cf67 bench: Add support for measuring CPU cycles (laanwj)
• #9223 5412c08 unification of Bloom filter representation (s-matthew-english)
• #9257 d7ba4a2 Dump debug logs on travis failures (sdaftuar)
• #9221 9e4bb31 Get rid of duplicate code (MarcoFalke)
• #9274 919db03 Use cached utxo set to fix performance regression (MarcoFalke)
• #9276 ea33f19 Some minor testing cleanups (morcos)
• #9291 8601784 Remove mapOrphanTransactionsByPrev from DoS_tests (sipa)
• #9309 76fcd9d Wallet needs to stay unlocked for whole test (morcos)
• #9172 5bc209c Resurrect pstratem’s “Simple fuzzing framework” (laanwj)
• #9331 c6fd923 Add test for rescan feature of wallet key import RPCs (ryanofsky)
• #9354 b416095 Make fuzzer actually test CTxOutCompressor (sipa)
• #9390,#9416 travis: make distdir (MarcoFalke)
• #9308 0698639 test: Add CCoinsViewCache Access/Modify/Write tests (ryanofsky)
• #9406 0f921e6 Re-enable a blank v1 Tx JSON test (droark)
• #9435 dbc8a8c Removed unused variable in test, fixing warning (ryanofsky)
• #9436 dce853e test: Include tx data in EXTRA_DIST (MarcoFalke)
• #9525 02e5308 test: Include tx data in EXTRA_DIST (MarcoFalke)
• #9498 054d664 Basic CCheckQueue Benchmarks (JeremyRubin)
• #9554 0b96abc test: Avoid potential NULL pointer dereference in addrman_tests.cpp (practicalswift)
• #9628 f895023 Increase a sync_blocks timeout in pruning.py (sdaftuar)
• #9638 a7ea2f8 Actually test assertions in pruning.py (MarcoFalke)
• #9647 e99f0d7 Skip RAII event tests if libevent is built without event_set_mem_functions (luke-jr)
• #9691 fc67cd2 Init ECC context for test_bitcoin_fuzzy (gmaxwell)
• #9712 d304fef bench: Fix initialization order in registration (laanwj)
• #9707 b860915 Fix RPC failure testing (jnewbery)
• #9269 43e8150 Align struct COrphan definition (sipa)
• #9820 599c69a Fix pruning test broken by 2 hour manual prune window (ryanofsky)
• #9824 260c71c qa: Check return code when stopping nodes (MarcoFalke)
• #9875 50953c2 tests: Fix dangling pwalletMain pointer in wallet tests (laanwj)
• #9839 eddaa6b [qa] Make import-rescan.py watchonly check reliable (ryanofsky)

Documentation

• #8332 806b9e7 Clarify witness branches in transaction.h serialization (dcousens)
• #8935 0306978 Documentation: Building on Windows with WSL (pooleja)
• #9144 c98f6b3 Correct waitforblockheight example help text (fanquake)
• #9407 041331e Added missing colons in when running help command (anditto)
• #9378 870cd2b Add documentation for CWalletTx::fFromMe member (ryanofsky)
• #9297 0b73807 Various RPC help outputs updated (Mirobit)
• #9613 07421cf Clarify getbalance help string to explain interaction with bumpfee (ryanofsky)
• #9663 e30d928 Clarify listunspent amount description (instagibbs)
• #9396 d65a13b Updated listsinceblock rpc documentation (accraze)
• #8747 ce43630 rpc: Fix transaction size comments and RPC help text (jnewbery)
• #8058 bbd9740 Doc: Add issue template (AmirAbrams)
• #8567 85d4e21 Add default port numbers to REST doc (djpnewton)
• #8624 89de153 build: Mention curl (MarcoFalke)
• #8786 9da7366 Mandatory copyright agreement (achow101)
• #8823 7b05af6 Add privacy recommendation when running hidden service (laanwj)
• #9433 caa2f10 Update the Windows build notes (droark)
• #8879 f928050 Rework docs (MarcoFalke)
• #8887 61d191f Improve GitHub issue template (fanquake)
• #8787 279bbad Add missing autogen to example builds (AmirAbrams)
• #8892 d270c30 Add build instructions for FreeBSD (laanwj)
• #8890 c71a654 Update Doxygen configuration file (fanquake)
• #9207 fa1f944 Move comments above bash command in build-unix (AmirAbrams)
• #9219 c4522e7 Improve windows build instructions using Linux subsystem (laanwj)
• #8954 932d02a contrib: Add README for pgp keys (MarcoFalke)
• #9093 2fae5b9 release-process: Mention GitHub release and archived release notes (MarcoFalke)
• #8743 bae178f Remove old manpages from contrib/debian in favour of doc/man (fanquake)
• #9550 4105cb6 Trim down the XP notice and say more about what we support (gmaxwell)
• #9246 9851498 Developer docs about existing subtrees (gmaxwell)
• #9401 c2ea1e6 Make rpcauth help message clearer, add example in example .conf (instagibbs)
• #9022,#9033 Document dropping OS X 10.7 support (fanquake, MarcoFalke)
• #8771 bc9e3ab contributing: Mention not to open several pulls (luke-jr)
• #8852 7b784cc Mention Gitian building script in doc (Laudaa) (laanwj)
• #8915 03dd707 Add copyright/patent issues to possible NACK reasons (petertodd)
• #8965 23e03f8 Mention that PPA doesn’t support Debian (anduck)
• #9115 bfc7aad Mention reporting security issues responsibly (paveljanik)
• #9840 08e0690 Update sendfrom RPC help to correct coin selection misconception (ryanofsky)
• #9865 289204f Change bitcoin address in RPC help message (marijnfs)

Miscellaneous

• #8274 7a2d402 util: Update tinyformat (laanwj)
• #8291 5cac8b1 util: CopyrightHolders: Check for untranslated substitution (MarcoFalke)
• #8557 44691f3 contrib: Rework verifybinaries (MarcoFalke)
• #8621 e8ed6eb contrib: python: Don’t use shell=True (MarcoFalke)
• #8813 fb24d7e bitcoind: Daemonize using daemon(3) (laanwj)
• #9004 67728a3 Clarify listenonion (unsystemizer)
• #8674 bae81b8 tools for analyzing, updating and adding copyright headers in source files (isle2983)
• #8976 8c6218a libconsensus: Add input validation of flags (laanwj)
• #9112 46027e8 Avoid ugly exception in log on unknown inv type (laanwj)
• #8837 2108911 Allow bitcoin-tx to parse partial transactions (jnewbery)
• #9204 74ced54 Clarify CreateTransaction error messages (instagibbs)
• #9265 31bcc66 bitcoin-cli: Make error message less confusing (laanwj)
• #9303 72bf1b3 Update comments in ctaes (sipa)
• #9417 c4b7d4f Do not evaluate hidden LogPrint arguments (sipa)
• #9506 593a00c RFC: Improve style for if indentation (sipa)
• #8883 d5d4ad8 Add all standard TXO types to bitcoin-tx (jnewbery)
• #9531 23281a4 Release notes for estimation changes (morcos)
• #9486 f62bc10 Make peer=%d log prints consistent (TheBlueMatt)
• #9552 41cb05c Add IPv6 support to qos.sh (jamesmacwhite)
• #9542 e9e7993 Docs: Update CONTRIBUTING.md (jnewbery)
• #9649 53ab12d Remove unused clang format dev script (MarcoFalke)
• #9625 77bd8c4 Increase minimum debug.log size to 10MB after shrink (morcos)
• #9070 7b22e50 Lockedpool fixes (kazcw)
• #8779 7008e28 contrib: Delete spendfrom (MarcoFalke)
• #9587,#8793,#9496,#8191,#8109,#8655,#8472,#8677,#8981,#9124 Avoid shadowing of variables (paveljanik)
• #9063 f2a6e82 Use deprecated MAP_ANON if MAP_ANONYMOUS is not defined (paveljanik)
• #9060 1107653 Fix bloom filter init to isEmpty = true (robmcl4)
• #8613 613bda4 LevelDB 1.19 (sipa)
• #9225 5488514 Fix some benign races (TheBlueMatt)
• #8736 5fa7b07 base58: Improve DecodeBase58 performance (wjx)
• #9039 e81df49 Various serialization simplifcations and optimizations (sipa)
• #9010 a143b88 Split up AppInit2 into multiple phases, daemonize after datadir lock errors (laanwj)
• #9230 c79e52a Fix some benign races in timestamp logging (TheBlueMatt)
• #9183,#9260 Mrs Peacock in The Library with The Candlestick (killed main.{h,cpp}) (TheBlueMatt)
• #9236 7f72568 Fix races for strMiscWarning and fLargeWork*Found, make QT runawayException use GetWarnings (gmaxwell)
• #9243 7aa7004 Clean up mapArgs and mapMultiArgs Usage (TheBlueMatt)
• #9387 cfe41d7 RAII of libevent stuff using unique ptrs with deleters (kallewoof)
• #9472 fac0f30 Disentangle progress estimation from checkpoints and update it (sipa)
• #9512 6012967 Fix various things -fsanitize complains about (sipa)
• #9373,#9580 Various linearization script issues (droark)
• #9674 dd163f5 Lock debugging: Always enforce strict lock ordering (try or not) (TheBlueMatt)
• #8453,#9334 Update to latest libsecp256k1 (laanwj,sipa)
• #9656 7c93952 Check verify-commits on pushes to master (TheBlueMatt)
• #9679 a351162 Access WorkQueue::running only within the cs lock (TheBlueMatt)
• #9777 8dee822 Handle unusual maxsigcachesize gracefully (jnewbery)
• #8863,#8807 univalue: Pull subtree (MarcoFalke)
• #9798 e22c067 Fix Issue #9775 (Check returned value of fopen) (kirit93)
• #9856 69832aa Terminate immediately when allocation fails (theuni)

Credits

Thanks to everyone who directly contributed to this release:

• accraze
• adlawren
• Alex Morcos
• Alexey Vesnin
• Amir Abrams
• Anders Øyvind Urke-Sætre
• Anditto Heristyo
• Andrew Chow
• anduck
• Anthony Towns
• Brian Deery
• BtcDrak
• Chris Moore
• Chris Stewart
• Christian Barcenas
• Christian Decker
• Cory Fields
• crowning-
• CryptAxe
• CryptoVote
• Dagur Valberg Johannsson
• Daniel Cousens
• Daniel Kraft
• Derek Miller
• djpnewton
• Don Patterson
• Doug
• Douglas Roark
• Ethan Heilman
• fsb4000
• Gaurav Rana
• Geoffrey Tsui
• Greg Walker
• Gregory Maxwell
• Gregory Sanders
• Hampus Sjöberg
• isle2983
• Ivo van der Sangen
• James White
• Jameson Lopp
• Jeremy Rubin
• Jiaxing Wang
• jnewbery
• John Newbery
• Johnson Lau
• Jon Lund Steffensen
• Jonas Schnelli
• jonnynewbs
• Jorge Timón
• Justin Camarena
• Karl-Johan Alm
• Kaz Wesley
• kirit93
• Koki Takahashi
• Lauda
• leijurv
• lizhi
• Luke Dashjr
• maiiz
• MarcoFalke
• Marijn Stollenga
• Marty Jones
• Masahiko Hyuga
• Matt Corallo
• Matthew King
• matthias
• Micha
• Michael Ford
• Michael Rotarius
• Mitchell Cash
• mrbandrews
• mruddy
• Nicolas DORIER
• nomnombtc
• Patrick Strateman
• Pavel Janík
• Pedro Branco
• Peter Todd
• Pieter Wuille
• poole_party
• practicalswift
• R E Broadley
• randy-waterhouse
• Richard Kiss
• Robert McLaughlin
• rodasmith
• Russell Yanofsky
• S. Matthew English
• Sev
• Spencer Lievens
• Stanislas Marion
• Steven
• Suhas Daftuar
• Thomas Snider
• UdjinM6
• unsystemizer
• whythat
• Will Binns
• Wladimir J. van der Laan
• wodry
• Zak Wilcox

As well as everyone that helped translating on Transifex.