release-notes-0.21.0.md
1 0.21.0 Release Notes 2 ==================== 3 4 Bitcoin Core version 0.21.0 is now available from: 5 6 <https://bitcoincore.org/bin/bitcoin-core-0.21.0/> 7 8 This release includes new features, various bug fixes and performance 9 improvements, as well as updated translations. 10 11 Please report bugs using the issue tracker at GitHub: 12 13 <https://github.com/bitcoin/bitcoin/issues> 14 15 To receive security and update notifications, please subscribe to: 16 17 <https://bitcoincore.org/en/list/announcements/join/> 18 19 How to Upgrade 20 ============== 21 22 If you are running an older version, shut it down. Wait until it has completely 23 shut down (which might take a few minutes in some cases), then run the 24 installer (on Windows) or just copy over `/Applications/Bitcoin-Qt` (on Mac) 25 or `bitcoind`/`bitcoin-qt` (on Linux). 26 27 Upgrading directly from a version of Bitcoin Core that has reached its EOL is 28 possible, but it might take some time if the data directory needs to be migrated. Old 29 wallet versions of Bitcoin Core are generally supported. 30 31 Compatibility 32 ============== 33 34 Bitcoin Core is supported and extensively tested on operating systems 35 using the Linux kernel, macOS 10.12+, and Windows 7 and newer. Bitcoin 36 Core should also work on most other Unix-like systems but is not as 37 frequently tested on them. It is not recommended to use Bitcoin Core on 38 unsupported systems. 39 40 From Bitcoin Core 0.20.0 onwards, macOS versions earlier than 10.12 are no 41 longer supported. Additionally, Bitcoin Core does not yet change appearance 42 when macOS "dark mode" is activated. 43 44 The node's known peers are persisted to disk in a file called `peers.dat`. The 45 format of this file has been changed in a backwards-incompatible way in order to 46 accommodate the storage of Tor v3 and other BIP155 addresses. This means that if 47 the file is modified by 0.21.0 or newer then older versions will not be able to 48 read it. Those old versions, in the event of a downgrade, will log an error 49 message "Incorrect keysize in addrman deserialization" and will continue normal 50 operation as if the file was missing, creating a new empty one. (#19954, #20284) 51 52 Notable changes 53 =============== 54 55 P2P and network changes 56 ----------------------- 57 58 - The mempool now tracks whether transactions submitted via the wallet or RPCs 59 have been successfully broadcast. Every 10-15 minutes, the node will try to 60 announce unbroadcast transactions until a peer requests it via a `getdata` 61 message or the transaction is removed from the mempool for other reasons. 62 The node will not track the broadcast status of transactions submitted to the 63 node using P2P relay. This version reduces the initial broadcast guarantees 64 for wallet transactions submitted via P2P to a node running the wallet. (#18038) 65 66 - The size of the set of transactions that peers have announced and we consider 67 for requests has been reduced from 100000 to 5000 (per peer), and further 68 announcements will be ignored when that limit is reached. If you need to dump 69 (very) large batches of transactions, exceptions can be made for trusted 70 peers using the "relay" network permission. For localhost for example it can 71 be enabled using the command line option `-whitelist=relay@127.0.0.1`. 72 (#19988) 73 74 - This release adds support for Tor version 3 hidden services, and rumoring them 75 over the network to other peers using 76 [BIP155](https://github.com/bitcoin/bips/blob/master/bip-0155.mediawiki). 77 Version 2 hidden services are still fully supported by Bitcoin Core, but the 78 Tor network will start 79 [deprecating](https://blog.torproject.org/v2-deprecation-timeline) them in the 80 coming months. (#19954) 81 82 - The Tor onion service that is automatically created by setting the 83 `-listenonion` configuration parameter will now be created as a Tor v3 service 84 instead of Tor v2. The private key that was used for Tor v2 (if any) will be 85 left untouched in the `onion_private_key` file in the data directory (see 86 `-datadir`) and can be removed if not needed. Bitcoin Core will no longer 87 attempt to read it. The private key for the Tor v3 service will be saved in a 88 file named `onion_v3_private_key`. To use the deprecated Tor v2 service (not 89 recommended), the `onion_private_key` can be copied over 90 `onion_v3_private_key`, e.g. 91 `cp -f onion_private_key onion_v3_private_key`. (#19954) 92 93 - The client writes a file (`anchors.dat`) at shutdown with the network addresses 94 of the node’s two outbound block-relay-only peers (so called "anchors"). The 95 next time the node starts, it reads this file and attempts to reconnect to those 96 same two peers. This prevents an attacker from using node restarts to trigger a 97 complete change in peers, which would be something they could use as part of an 98 eclipse attack. (#17428) 99 100 - This release adds support for serving 101 [BIP157](https://github.com/bitcoin/bips/blob/master/bip-0157.mediawiki) compact 102 filters to peers on the network when enabled using 103 `-blockfilterindex=1 -peerblockfilters=1`. (#16442) 104 105 - This release adds support for signets 106 ([BIP325](https://github.com/bitcoin/bips/blob/master/bip-0325.mediawiki)) in 107 addition to the existing mainnet, testnet, and regtest networks. Signets are 108 centrally-controlled test networks, allowing them to be more predictable 109 test environments than the older testnet. One public signet is maintained, and 110 selectable using `-signet`. It is also possible to create personal signets. 111 (#18267). 112 113 - This release implements 114 [BIP339](https://github.com/bitcoin/bips/blob/master/bip-0339.mediawiki) 115 wtxid relay. When negotiated, transactions are announced using their wtxid 116 instead of their txid. (#18044). 117 118 - This release implements the proposed Taproot consensus rules 119 ([BIP341](https://github.com/bitcoin/bips/blob/master/bip-0341.mediawiki) and 120 [BIP342](https://github.com/bitcoin/bips/blob/master/bip-0342.mediawiki)), 121 without activation on mainnet. Experimentation with Taproot can be done on 122 signet, where its rules are already active. (#19553) 123 124 Updated RPCs 125 ------------ 126 127 - The `getpeerinfo` RPC has a new `network` field that provides the type of 128 network ("ipv4", "ipv6", or "onion") that the peer connected through. (#20002) 129 130 - The `getpeerinfo` RPC now has additional `last_block` and `last_transaction` 131 fields that return the UNIX epoch time of the last block and the last *valid* 132 transaction received from each peer. (#19731) 133 134 - `getnetworkinfo` now returns two new fields, `connections_in` and 135 `connections_out`, that provide the number of inbound and outbound peer 136 connections. These new fields are in addition to the existing `connections` 137 field, which returns the total number of peer connections. (#19405) 138 139 - Exposed transaction version numbers are now treated as unsigned 32-bit 140 integers instead of signed 32-bit integers. This matches their treatment in 141 consensus logic. Versions greater than 2 continue to be non-standard 142 (matching previous behavior of smaller than 1 or greater than 2 being 143 non-standard). Note that this includes the `joinpsbt` command, which combines 144 partially-signed transactions by selecting the highest version number. 145 (#16525) 146 147 - `getmempoolinfo` now returns an additional `unbroadcastcount` field. The 148 mempool tracks locally submitted transactions until their initial broadcast 149 is acknowledged by a peer. This field returns the count of transactions 150 waiting for acknowledgement. 151 152 - Mempool RPCs such as `getmempoolentry` and `getrawmempool` with 153 `verbose=true` now return an additional `unbroadcast` field. This indicates 154 whether initial broadcast of the transaction has been acknowledged by a 155 peer. `getmempoolancestors` and `getmempooldescendants` are also updated. 156 157 - The `getpeerinfo` RPC no longer returns the `banscore` field unless the configuration 158 option `-deprecatedrpc=banscore` is used. The `banscore` field will be fully 159 removed in the next major release. (#19469) 160 161 - The `testmempoolaccept` RPC returns `vsize` and a `fees` object with the `base` fee 162 if the transaction would pass validation. (#19940) 163 164 - The `getpeerinfo` RPC now returns a `connection_type` field. This indicates 165 the type of connection established with the peer. It will return one of six 166 options. For more information, see the `getpeerinfo` help documentation. 167 (#19725) 168 169 - The `getpeerinfo` RPC no longer returns the `addnode` field by default. This 170 field will be fully removed in the next major release. It can be accessed 171 with the configuration option `-deprecatedrpc=getpeerinfo_addnode`. However, 172 it is recommended to instead use the `connection_type` field (it will return 173 `manual` when addnode is true). (#19725) 174 175 - The `getpeerinfo` RPC no longer returns the `whitelisted` field by default. 176 This field will be fully removed in the next major release. It can be accessed 177 with the configuration option `-deprecatedrpc=getpeerinfo_whitelisted`. However, 178 it is recommended to instead use the `permissions` field to understand if specific 179 privileges have been granted to the peer. (#19770) 180 181 - The `walletcreatefundedpsbt` RPC call will now fail with 182 `Insufficient funds` when inputs are manually selected but are not enough to cover 183 the outputs and fee. Additional inputs can automatically be added through the 184 new `add_inputs` option. (#16377) 185 186 - The `fundrawtransaction` RPC now supports `add_inputs` option that when `false` 187 prevents adding more inputs if necessary and consequently the RPC fails. 188 189 Changes to Wallet or GUI related RPCs can be found in the GUI or Wallet section below. 190 191 New RPCs 192 -------- 193 194 - The `getindexinfo` RPC returns the actively running indices of the node, 195 including their current sync status and height. It also accepts an `index_name` 196 to specify returning the status of that index only. (#19550) 197 198 Build System 199 ------------ 200 201 Updated settings 202 ---------------- 203 204 - The same ZeroMQ notification (e.g. `-zmqpubhashtx=address`) can now be 205 specified multiple times to publish the same notification to different ZeroMQ 206 sockets. (#18309) 207 208 - The `-banscore` configuration option, which modified the default threshold for 209 disconnecting and discouraging misbehaving peers, has been removed as part of 210 changes in 0.20.1 and in this release to the handling of misbehaving peers. 211 Refer to "Changes regarding misbehaving peers" in the 0.20.1 release notes for 212 details. (#19464) 213 214 - The `-debug=db` logging category, which was deprecated in 0.20 and replaced by 215 `-debug=walletdb` to distinguish it from `coindb`, has been removed. (#19202) 216 217 - A `download` permission has been extracted from the `noban` permission. For 218 compatibility, `noban` implies the `download` permission, but this may change 219 in future releases. Refer to the help of the affected settings `-whitebind` 220 and `-whitelist` for more details. (#19191) 221 222 - Netmasks that contain 1-bits after 0-bits (the 1-bits are not contiguous on 223 the left side, e.g. 255.0.255.255) are no longer accepted. They are invalid 224 according to RFC 4632. Netmasks are used in the `-rpcallowip` and `-whitelist` 225 configuration options and in the `setban` RPC. (#19628) 226 227 - The `-blocksonly` setting now completely disables fee estimation. (#18766) 228 229 Changes to Wallet or GUI related settings can be found in the GUI or Wallet section below. 230 231 Tools and Utilities 232 ------------------- 233 234 - A new `bitcoin-cli -netinfo` command provides a network peer connections 235 dashboard that displays data from the `getpeerinfo` and `getnetworkinfo` RPCs 236 in a human-readable format. An optional integer argument from `0` to `4` may 237 be passed to see increasing levels of detail. (#19643) 238 239 - A new `bitcoin-cli -generate` command, equivalent to RPC `generatenewaddress` 240 followed by `generatetoaddress`, can generate blocks for command line testing 241 purposes. This is a client-side version of the former `generate` RPC. See the 242 help for details. (#19133) 243 244 - The `bitcoin-cli -getinfo` command now displays the wallet name and balance for 245 each of the loaded wallets when more than one is loaded (e.g. in multiwallet 246 mode) and a wallet is not specified with `-rpcwallet`. (#18594) 247 248 - The `connections` field of `bitcoin-cli -getinfo` is now expanded to return a JSON 249 object with `in`, `out` and `total` numbers of peer connections. It previously 250 returned a single integer value for the total number of peer connections. (#19405) 251 252 New settings 253 ------------ 254 255 - The `startupnotify` option is used to specify a command to 256 execute when Bitcoin Core has finished with its startup 257 sequence. (#15367) 258 259 Wallet 260 ------ 261 262 - Backwards compatibility has been dropped for two `getaddressinfo` RPC 263 deprecations, as notified in the 0.20 release notes. The deprecated `label` 264 field has been removed as well as the deprecated `labels` behavior of 265 returning a JSON object containing `name` and `purpose` key-value pairs. Since 266 0.20, the `labels` field returns a JSON array of label names. (#19200) 267 268 - To improve wallet privacy, the frequency of wallet rebroadcast attempts is 269 reduced from approximately once every 15 minutes to once every 12-36 hours. 270 To maintain a similar level of guarantee for initial broadcast of wallet 271 transactions, the mempool tracks these transactions as a part of the newly 272 introduced unbroadcast set. See the "P2P and network changes" section for 273 more information on the unbroadcast set. (#18038) 274 275 - The `sendtoaddress` and `sendmany` RPCs accept an optional `verbose=True` 276 argument to also return the fee reason about the sent tx. (#19501) 277 278 - The wallet can create a transaction without change even when the keypool is 279 empty. Previously it failed. (#17219) 280 281 - The `-salvagewallet` startup option has been removed. A new `salvage` command 282 has been added to the `bitcoin-wallet` tool which performs the salvage 283 operations that `-salvagewallet` did. (#18918) 284 285 - A new configuration flag `-maxapsfee` has been added, which sets the max 286 allowed avoid partial spends (APS) fee. It defaults to 0 (i.e. fee is the 287 same with and without APS). Setting it to -1 will disable APS, unless 288 `-avoidpartialspends` is set. (#14582) 289 290 - The wallet will now avoid partial spends (APS) by default, if this does not 291 result in a difference in fees compared to the non-APS variant. The allowed 292 fee threshold can be adjusted using the new `-maxapsfee` configuration 293 option. (#14582) 294 295 - The `createwallet`, `loadwallet`, and `unloadwallet` RPCs now accept 296 `load_on_startup` options to modify the settings list. Unless these options 297 are explicitly set to true or false, the list is not modified, so the RPC 298 methods remain backwards compatible. (#15937) 299 300 - A new `send` RPC with similar syntax to `walletcreatefundedpsbt`, including 301 support for coin selection and a custom fee rate, is added. The `send` RPC is 302 experimental and may change in subsequent releases. (#16378) 303 304 - The `estimate_mode` parameter is now case-insensitive in the `bumpfee`, 305 `fundrawtransaction`, `sendmany`, `sendtoaddress`, `send` and 306 `walletcreatefundedpsbt` RPCs. (#11413) 307 308 - The `bumpfee` RPC now uses `conf_target` rather than `confTarget` in the 309 options. (#11413) 310 311 - `fundrawtransaction` and `walletcreatefundedpsbt` when used with the 312 `lockUnspents` argument now lock manually selected coins, in addition to 313 automatically selected coins. Note that locked coins are never used in 314 automatic coin selection, but can still be manually selected. (#18244) 315 316 - The `-zapwallettxes` startup option has been removed and its functionality 317 removed from the wallet. This option was originally intended to allow for 318 rescuing wallets which were affected by a malleability attack. More recently, 319 it has been used in the fee bumping of transactions that did not signal RBF. 320 This functionality has been superseded with the abandon transaction feature. (#19671) 321 322 - The error code when no wallet is loaded, but a wallet RPC is called, has been 323 changed from `-32601` (method not found) to `-18` (wallet not found). 324 (#20101) 325 326 ### Automatic wallet creation removed 327 328 Bitcoin Core will no longer automatically create new wallets on startup. It will 329 load existing wallets specified by `-wallet` options on the command line or in 330 `bitcoin.conf` or `settings.json` files. And by default it will also load a 331 top-level unnamed ("") wallet. However, if specified wallets don't exist, 332 Bitcoin Core will now just log warnings instead of creating new wallets with 333 new keys and addresses like previous releases did. 334 335 New wallets can be created through the GUI (which has a more prominent create 336 wallet option), through the `bitcoin-cli createwallet` or `bitcoin-wallet 337 create` commands, or the `createwallet` RPC. (#15454, #20186) 338 339 ### Experimental Descriptor Wallets 340 341 Please note that Descriptor Wallets are still experimental and not all expected functionality 342 is available. Additionally there may be some bugs and current functions may change in the future. 343 Bugs and missing functionality can be reported to the [issue tracker](https://github.com/bitcoin/bitcoin/issues). 344 345 0.21 introduces a new type of wallet - Descriptor Wallets. Descriptor Wallets store 346 scriptPubKey information using output descriptors. This is in contrast to the Legacy Wallet 347 structure where keys are used to implicitly generate scriptPubKeys and addresses. Because of this 348 shift to being script based instead of key based, many of the confusing things that Legacy 349 Wallets do are not possible with Descriptor Wallets. Descriptor Wallets use a definition 350 of "mine" for scripts which is simpler and more intuitive than that used by Legacy Wallets. 351 Descriptor Wallets also uses different semantics for watch-only things and imports. 352 353 As Descriptor Wallets are a new type of wallet, their introduction does not affect existing wallets. 354 Users who already have a Bitcoin Core wallet can continue to use it as they did before without 355 any change in behavior. Newly created Legacy Wallets (which remains the default type of wallet) will 356 behave as they did in previous versions of Bitcoin Core. 357 358 The differences between Descriptor Wallets and Legacy Wallets are largely limited to non user facing 359 things. They are intended to behave similarly except for the import/export and watchonly functionality 360 as described below. 361 362 #### Creating Descriptor Wallets 363 364 Descriptor wallets are not the default type of wallet. 365 366 In the GUI, a checkbox has been added to the Create Wallet Dialog to indicate that a 367 Descriptor Wallet should be created. And a `descriptors` option has been added to `createwallet` RPC. 368 Setting `descriptors` to `true` will create a Descriptor Wallet instead of a Legacy Wallet. 369 370 Without those options being set, a Legacy Wallet will be created instead. 371 372 #### `IsMine` Semantics 373 374 `IsMine` refers to the function used to determine whether a script belongs to the wallet. 375 This is used to determine whether an output belongs to the wallet. `IsMine` in Legacy Wallets 376 returns true if the wallet would be able to sign an input that spends an output with that script. 377 Since keys can be involved in a variety of different scripts, this definition for `IsMine` can 378 lead to many unexpected scripts being considered part of the wallet. 379 380 With Descriptor Wallets, descriptors explicitly specify the set of scripts that are owned by 381 the wallet. Since descriptors are deterministic and easily enumerable, users will know exactly 382 what scripts the wallet will consider to belong to it. Additionally the implementation of `IsMine` 383 in Descriptor Wallets is far simpler than for Legacy Wallets. Notably, in Legacy Wallets, `IsMine` 384 allowed for users to take one type of address (e.g. P2PKH), mutate it into another address type 385 (e.g. P2WPKH), and the wallet would still detect outputs sending to the new address type 386 even without that address being requested from the wallet. Descriptor Wallets do not 387 allow for this and will only watch for the addresses that were explicitly requested from the wallet. 388 389 These changes to `IsMine` will make it easier to reason about what scripts the wallet will 390 actually be watching for in outputs. However for the vast majority of users, this change is 391 largely transparent and will not have noticeable effect. 392 393 #### Imports and Exports 394 395 In Legacy Wallets, raw scripts and keys could be imported to the wallet. Those imported scripts 396 and keys are treated separately from the keys generated by the wallet. This complicates the `IsMine` 397 logic as it has to distinguish between spendable and watchonly. 398 399 Descriptor Wallets handle importing scripts and keys differently. Only complete descriptors can be 400 imported. These descriptors are then added to the wallet as if it were a descriptor generated by 401 the wallet itself. This simplifies the `IsMine` logic so that it no longer has to distinguish 402 between spendable and watchonly. As such, the watchonly model for Descriptor Wallets is also 403 different and described in more detail in the next section. 404 405 To import into a Descriptor Wallet, a new `importdescriptors` RPC has been added that uses a syntax 406 similar to that of `importmulti`. 407 408 As Legacy Wallets and Descriptor Wallets use different mechanisms for storing and importing scripts and keys 409 the existing import RPCs have been disabled for descriptor wallets. 410 New export RPCs for Descriptor Wallets have not yet been added. 411 412 The following RPCs are disabled for Descriptor Wallets: 413 414 * `importprivkey` 415 * `importpubkey` 416 * `importaddress` 417 * `importwallet` 418 * `dumpprivkey` 419 * `dumpwallet` 420 * `importmulti` 421 * `addmultisigaddress` 422 * `sethdseed` 423 424 #### Watchonly Wallets 425 426 A Legacy Wallet contains both private keys and scripts that were being watched. 427 Those watched scripts would not contribute to your normal balance. In order to see the watchonly 428 balance and to use watchonly things in transactions, an `include_watchonly` option was added 429 to many RPCs that would allow users to do that. However it is easy to forget to include this option. 430 431 Descriptor Wallets move to a per-wallet watchonly model. Instead an entire wallet is considered to be 432 watchonly depending on whether it was created with private keys disabled. This eliminates the need 433 to distinguish between things that are watchonly and things that are not within a wallet itself. 434 435 This change does have a caveat. If a Descriptor Wallet with private keys *enabled* has 436 a multiple key descriptor without all of the private keys (e.g. `multi(...)` with only one private key), 437 then the wallet will fail to sign and broadcast transactions. Such wallets would need to use the PSBT 438 workflow but the typical GUI Send, `sendtoaddress`, etc. workflows would still be available, just 439 non-functional. 440 441 This issue is worsened if the wallet contains both single key (e.g. `wpkh(...)`) descriptors and such 442 multiple key descriptors as some transactions could be signed and broadcast and others not. This is 443 due to some transactions containing only single key inputs, while others would contain both single 444 key and multiple key inputs, depending on which are available and how the coin selection algorithm 445 selects inputs. However this is not considered to be a supported use case; multisigs 446 should be in their own wallets which do not already have descriptors. Although users cannot export 447 descriptors with private keys for now as explained earlier. 448 449 #### BIP 44/49/84 Support 450 451 The change to using descriptors changes the default derivation paths used by Bitcoin Core 452 to adhere to BIP 44/49/84. Descriptors with different derivation paths can be imported without 453 issue. 454 455 #### SQLite Database Backend 456 457 Descriptor wallets use SQLite for the wallet file instead of the Berkeley DB used in legacy wallets. 458 This will break compatibility with any existing tooling that operates on wallets, however compatibility 459 was already being broken by the move to descriptors. 460 461 ### Wallet RPC changes 462 463 - The `upgradewallet` RPC replaces the `-upgradewallet` command line option. 464 (#15761) 465 466 - The `settxfee` RPC will fail if the fee was set higher than the `-maxtxfee` 467 command line setting. The wallet will already fail to create transactions 468 with fees higher than `-maxtxfee`. (#18467) 469 470 - A new `fee_rate` parameter/option denominated in satoshis per vbyte (sat/vB) 471 is introduced to the `sendtoaddress`, `sendmany`, `fundrawtransaction` and 472 `walletcreatefundedpsbt` RPCs as well as to the experimental new `send` 473 RPC. The legacy `feeRate` option in `fundrawtransaction` and 474 `walletcreatefundedpsbt` still exists for setting a fee rate in BTC per 1,000 475 vbytes (BTC/kvB), but it is expected to be deprecated soon to avoid 476 confusion. For these RPCs, the fee rate error message is updated from BTC/kB 477 to sat/vB and the help documentation in BTC/kB is updated to BTC/kvB. The 478 `send` and `sendtoaddress` RPC examples are updated to aid users in creating 479 transactions with explicit fee rates. (#20305, #11413) 480 481 - The `bumpfee` RPC `fee_rate` option is changed from BTC/kvB to sat/vB and the 482 help documentation is updated. Users are warned that this is a breaking API 483 change, but it should be relatively benign: the large (100,000 times) 484 difference between BTC/kvB and sat/vB units means that a transaction with a 485 fee rate mistakenly calculated in BTC/kvB rather than sat/vB should raise an 486 error due to the fee rate being set too low. In the worst case, the 487 transaction may send at 1 sat/vB, but as Replace-by-Fee (BIP125 RBF) is active 488 by default when an explicit fee rate is used, the transaction fee can be 489 bumped. (#20305) 490 491 GUI changes 492 ----------- 493 494 - Wallets created or loaded in the GUI will now be automatically loaded on 495 startup, so they don't need to be manually reloaded next time Bitcoin Core is 496 started. The list of wallets to load on startup is stored in 497 `\<datadir\>/settings.json` and augments any command line or `bitcoin.conf` 498 `-wallet=` settings that specify more wallets to load. Wallets that are 499 unloaded in the GUI get removed from the settings list so they won't load 500 again automatically next startup. (#19754) 501 502 - The GUI Peers window no longer displays a "Ban Score" field. This is part of 503 changes in 0.20.1 and in this release to the handling of misbehaving 504 peers. Refer to "Changes regarding misbehaving peers" in the 0.20.1 release 505 notes for details. (#19512) 506 507 Low-level changes 508 ================= 509 510 RPC 511 --- 512 513 - To make RPC `sendtoaddress` more consistent with `sendmany` the following error 514 `sendtoaddress` codes were changed from `-4` to `-6`: 515 - Insufficient funds 516 - Fee estimation failed 517 - Transaction has too long of a mempool chain 518 519 - The `sendrawtransaction` error code for exceeding `maxfeerate` has been changed from 520 `-26` to `-25`. The error string has been changed from "absurdly-high-fee" to 521 "Fee exceeds maximum configured by user (e.g. -maxtxfee, maxfeerate)." The 522 `testmempoolaccept` RPC returns `max-fee-exceeded` rather than `absurdly-high-fee` 523 as the `reject-reason`. (#19339) 524 525 - To make wallet and rawtransaction RPCs more consistent, the error message for 526 exceeding maximum feerate has been changed to "Fee exceeds maximum configured by user 527 (e.g. -maxtxfee, maxfeerate)." (#19339) 528 529 Tests 530 ----- 531 532 - The BIP 325 default signet can be enabled by the `-chain=signet` or `-signet` 533 setting. The settings `-signetchallenge` and `-signetseednode` allow 534 enabling a custom signet. 535 536 - The `generateblock` RPC allows testers using regtest mode to 537 generate blocks that consist of a custom set of transactions. (#17693) 538 539 0.21.0 change log 540 ================= 541 542 ### Consensus 543 - #18267 BIP-325: Signet (kallewoof) 544 - #20016 uint256: 1 is a constant (ajtowns) 545 - #20006 Fix misleading error message: Clean stack rule (sanket1729) 546 - #19953 Implement BIP 340-342 validation (Schnorr/taproot/tapscript) (sipa) 547 - #20169 Taproot follow-up: Make ComputeEntrySchnorr and ComputeEntryECDSA const to clarify contract (practicalswift) 548 549 ### Policy 550 - #18766 Disable fee estimation in blocksonly mode (darosior) 551 - #19630 Cleanup fee estimation code (darosior) 552 - #20165 Only relay Taproot spends if next block has it active (sipa) 553 554 ### Mining 555 - #17946 Fix GBT: Restore "!segwit" and "csv" to "rules" key (luke-jr) 556 557 ### Privacy 558 - #16432 Add privacy to the Overview page (hebasto) 559 - #18861 Do not answer GETDATA for to-be-announced tx (sipa) 560 - #18038 Mempool tracks locally submitted transactions to improve wallet privacy (amitiuttarwar) 561 - #19109 Only allow getdata of recently announced invs (sipa) 562 563 ### Block and transaction handling 564 - #17737 Add ChainstateManager, remove BlockManager global (jamesob) 565 - #18960 indexes: Add compact block filter headers cache (jnewbery) 566 - #13204 Faster sigcache nonce (JeremyRubin) 567 - #19088 Use std::chrono throughout some validation functions (fanquake) 568 - #19142 Make VerifyDB level 4 interruptible (MarcoFalke) 569 - #17994 Flush undo files after last block write (kallewoof) 570 - #18990 log: Properly log txs rejected from mempool (MarcoFalke) 571 - #18984 Remove unnecessary input blockfile SetPos (dgenr8) 572 - #19526 log: Avoid treating remote misbehvior as local system error (MarcoFalke) 573 - #18044 Use wtxid for transaction relay (sdaftuar) 574 - #18637 coins: allow cache resize after init (jamesob) 575 - #19854 Avoid locking CTxMemPool::cs recursively in simple cases (hebasto) 576 - #19478 Remove CTxMempool::mapLinks data structure member (JeremyRubin) 577 - #19927 Reduce direct `g_chainman` usage (dongcarl) 578 - #19898 log: print unexpected version warning in validation log category (n-thumann) 579 - #20036 signet: Add assumed values for default signet (MarcoFalke) 580 - #20048 chainparams: do not log signet startup messages for other chains (jonatack) 581 - #19339 re-delegate absurd fee checking from mempool to clients (glozow) 582 - #20035 signet: Fix uninitialized read in validation (MarcoFalke) 583 - #20157 Bugfix: chainparams: Add missing (always enabled) Taproot deployment for Signet (luke-jr) 584 - #20263 Update assumed chain params (MarcoFalke) 585 - #20372 Avoid signed integer overflow when loading a mempool.dat file with a malformed time field (practicalswift) 586 - #18621 script: Disallow silent bool -> cscript conversion (MarcoFalke) 587 - #18612, #18732 script: Remove undocumented and unused operator+ (MarcoFalke) 588 - #19317 Add a left-justified width field to `log2_work` component for a uniform debug.log output (jamesgmorgan) 589 590 ### P2P protocol and network code 591 - #18544 Limit BIP37 filter lifespan (active between `filterload`..`filterclear`) (theStack) 592 - #18806 Remove is{Empty,Full} flags from CBloomFilter, clarify CVE fix (theStack) 593 - #18512 Improve asmap checks and add sanity check (sipa) 594 - #18877 Serve cfcheckpt requests (jnewbery) 595 - #18895 Unbroadcast followups: rpcs, nLastResend, mempool sanity check (gzhao408) 596 - #19010 net processing: Add support for `getcfheaders` (jnewbery) 597 - #16939 Delay querying DNS seeds (ajtowns) 598 - #18807 Unbroadcast follow-ups (amitiuttarwar) 599 - #19044 Add support for getcfilters (jnewbery) 600 - #19084 improve code documentation for dns seed behaviour (ajtowns) 601 - #19260 disconnect peers that send filterclear + update existing filter msg disconnect logic (gzhao408) 602 - #19284 Add seed.bitcoin.wiz.biz to DNS seeds (wiz) 603 - #19322 split PushInventory() (jnewbery) 604 - #19204 Reduce inv traffic during IBD (MarcoFalke) 605 - #19470 banlist: log post-swept banlist size at startup (fanquake) 606 - #19191 Extract download permission from noban (MarcoFalke) 607 - #14033 Drop `CADDR_TIME_VERSION` checks now that `MIN_PEER_PROTO_VERSION` is greater (Empact) 608 - #19464 net, rpc: remove -banscore option, deprecate banscore in getpeerinfo (jonatack) 609 - #19514 [net/net processing] check banman pointer before dereferencing (jnewbery) 610 - #19512 banscore updates to gui, tests, release notes (jonatack) 611 - #19360 improve encapsulation of CNetAddr (vasild) 612 - #19217 disambiguate block-relay-only variable names from blocksonly variables (glowang) 613 - #19473 Add -networkactive option (hebasto) 614 - #19472 [net processing] Reduce `cs_main` scope in MaybeDiscourageAndDisconnect() (jnewbery) 615 - #19583 clean up Misbehaving() (jnewbery) 616 - #19534 save the network type explicitly in CNetAddr (vasild) 617 - #19569 Enable fetching of orphan parents from wtxid peers (sipa) 618 - #18991 Cache responses to GETADDR to prevent topology leaks (naumenkogs) 619 - #19596 Deduplicate parent txid loop of requested transactions and missing parents of orphan transactions (sdaftuar) 620 - #19316 Cleanup logic around connection types (amitiuttarwar) 621 - #19070 Signal support for compact block filters with `NODE_COMPACT_FILTERS` (jnewbery) 622 - #19705 Shrink CAddress from 48 to 40 bytes on x64 (vasild) 623 - #19704 Move ProcessMessage() to PeerLogicValidation (jnewbery) 624 - #19628 Change CNetAddr::ip to have flexible size (vasild) 625 - #19797 Remove old check for 3-byte shifted IP addresses from pre-0.2.9 nodes (#19797) 626 - #19607 Add Peer struct for per-peer data in net processing (jnewbery) 627 - #19857 improve nLastBlockTime and nLastTXTime documentation (jonatack) 628 - #19724 Cleanup connection types- followups (amitiuttarwar) 629 - #19670 Protect localhost and block-relay-only peers from eviction (sdaftuar) 630 - #19728 Increase the ip address relay branching factor for unreachable networks (sipa) 631 - #19879 Miscellaneous wtxid followups (amitiuttarwar) 632 - #19697 Improvements on ADDR caching (naumenkogs) 633 - #17785 Unify Send and Receive protocol versions (hebasto) 634 - #19845 CNetAddr: add support to (un)serialize as ADDRv2 (vasild) 635 - #19107 Move all header verification into the network layer, extend logging (troygiorshev) 636 - #20003 Exit with error message if -proxy is specified without arguments (instead of continuing without proxy server) (practicalswift) 637 - #19991 Use alternative port for incoming Tor connections (hebasto) 638 - #19723 Ignore unknown messages before VERACK (sdaftuar) 639 - #19954 Complete the BIP155 implementation and upgrade to TORv3 (vasild) 640 - #20119 BIP155 follow-ups (sipa) 641 - #19988 Overhaul transaction request logic (sipa) 642 - #17428 Try to preserve outbound block-relay-only connections during restart (hebasto) 643 - #19911 Guard `vRecvGetData` with `cs_vRecv` and `orphan_work_set` with `g_cs_orphans` (narula) 644 - #19753 Don't add AlreadyHave transactions to recentRejects (troygiorshev) 645 - #20187 Test-before-evict bugfix and improvements for block-relay-only peers (sdaftuar) 646 - #20237 Hardcoded seeds update for 0.21 (laanwj) 647 - #20212 Fix output of peer address in version message (vasild) 648 - #20284 Ensure old versions don't parse peers.dat (vasild) 649 - #20405 Avoid calculating onion address checksum when version is not 3 (lontivero) 650 - #20564 Don't send 'sendaddrv2' to pre-70016 software, and send before 'verack' (sipa) 651 - #20660 Move signet onion seed from v2 to v3 (Sjors) 652 653 ### Wallet 654 - #18262 Exit selection when `best_waste` is 0 (achow101) 655 - #17824 Prefer full destination groups in coin selection (fjahr) 656 - #17219 Allow transaction without change if keypool is empty (Sjors) 657 - #15761 Replace -upgradewallet startup option with upgradewallet RPC (achow101) 658 - #18671 Add BlockUntilSyncedToCurrentChain to dumpwallet (MarcoFalke) 659 - #16528 Native Descriptor Wallets using DescriptorScriptPubKeyMan (achow101) 660 - #18777 Recommend absolute path for dumpwallet (MarcoFalke) 661 - #16426 Reverse `cs_main`, `cs_wallet` lock order and reduce `cs_main` locking (ariard) 662 - #18699 Avoid translating RPC errors (MarcoFalke) 663 - #18782 Make sure no DescriptorScriptPubKeyMan or WalletDescriptor members are left uninitialized after construction (practicalswift) 664 - #9381 Remove CWalletTx merging logic from AddToWallet (ryanofsky) 665 - #16946 Include a checksum of encrypted private keys (achow101) 666 - #17681 Keep inactive seeds after sethdseed and derive keys from them as needed (achow101) 667 - #18918 Move salvagewallet into wallettool (achow101) 668 - #14988 Fix for confirmed column in csv export for payment to self transactions (benthecarman) 669 - #18275 Error if an explicit fee rate was given but the needed fee rate differed (kallewoof) 670 - #19054 Skip hdKeypath of 'm' when determining inactive hd seeds (achow101) 671 - #17938 Disallow automatic conversion between disparate hash types (Empact) 672 - #19237 Check size after unserializing a pubkey (elichai) 673 - #11413 sendtoaddress/sendmany: Add explicit feerate option (kallewoof) 674 - #18850 Fix ZapSelectTx to sync wallet spends (bvbfan) 675 - #18923 Never schedule MaybeCompactWalletDB when `-flushwallet` is off (MarcoFalke) 676 - #19441 walletdb: Don't reinitialize desc cache with multiple cache entries (achow101) 677 - #18907 walletdb: Don't remove database transaction logs and instead error (achow101) 678 - #19334 Introduce WalletDatabase abstract class (achow101) 679 - #19335 Cleanup and separate BerkeleyDatabase and BerkeleyBatch (achow101) 680 - #19102 Introduce and use DummyDatabase instead of dummy BerkeleyDatabase (achow101) 681 - #19568 Wallet should not override signing errors (fjahr) 682 - #17204 Do not turn `OP_1NEGATE` in scriptSig into `0x0181` in signing code (sipa) (meshcollider) 683 - #19457 Cleanup wallettool salvage and walletdb extraneous declarations (achow101) 684 - #15937 Add loadwallet and createwallet `load_on_startup` options (ryanofsky) 685 - #16841 Replace GetScriptForWitness with GetScriptForDestination (meshcollider) 686 - #14582 always do avoid partial spends if fees are within a specified range (kallewoof) 687 - #19743 -maxapsfee follow-up (kallewoof) 688 - #19289 GetWalletTx and IsMine require `cs_wallet` lock (promag) 689 - #19671 Remove -zapwallettxes (achow101) 690 - #19805 Avoid deserializing unused records when salvaging (achow101) 691 - #19754 wallet, gui: Reload previously loaded wallets on startup (achow101) 692 - #19738 Avoid multiple BerkeleyBatch in DelAddressBook (promag) 693 - #19919 bugfix: make LoadWallet assigns status always (AkioNak) 694 - #16378 The ultimate send RPC (Sjors) 695 - #15454 Remove the automatic creation and loading of the default wallet (achow101) 696 - #19501 `send*` RPCs in the wallet returns the "fee reason" (stackman27) 697 - #20130 Remove db mode string (S3RK) 698 - #19077 Add sqlite as an alternative wallet database and use it for new descriptor wallets (achow101) 699 - #20125 Expose database format in getwalletinfo (promag) 700 - #20198 Show name, format and if uses descriptors in bitcoin-wallet tool (jonasschnelli) 701 - #20216 Fix buffer over-read in SQLite file magic check (theStack) 702 - #20186 Make -wallet setting not create wallets (ryanofsky) 703 - #20230 Fix bug when just created encrypted wallet cannot get address (hebasto) 704 - #20282 Change `upgradewallet` return type to be an object (jnewbery) 705 - #20220 Explicit fee rate follow-ups/fixes for 0.21 (jonatack) 706 - #20199 Ignore (but warn) on duplicate -wallet parameters (jonasschnelli) 707 - #20324 Set DatabaseStatus::SUCCESS in MakeSQLiteDatabase (MarcoFalke) 708 - #20266 Fix change detection of imported internal descriptors (achow101) 709 - #20153 Do not import a descriptor with hardened derivations into a watch-only wallet (S3RK) 710 - #20344 Fix scanning progress calculation for single block range (theStack) 711 - #19502 Bugfix: Wallet: Soft-fail exceptions within ListWalletDir file checks (luke-jr) 712 - #20378 Fix potential division by 0 in WalletLogPrintf (jonasschnelli) 713 - #18836 Upgradewallet fixes and additional tests (achow101) 714 - #20139 Do not return warnings from UpgradeWallet() (stackman27) 715 - #20305 Introduce `fee_rate` sat/vB param/option (jonatack) 716 - #20426 Allow zero-fee fundrawtransaction/walletcreatefundedpsbt and other fixes (jonatack) 717 - #20573 wallet, bugfix: allow send with string `fee_rate` amounts (jonatack) 718 719 ### RPC and other APIs 720 - #18574 cli: Call getbalances.ismine.trusted instead of getwalletinfo.balance (jonatack) 721 - #17693 Add `generateblock` to mine a custom set of transactions (andrewtoth) 722 - #18495 Remove deprecated migration code (vasild) 723 - #18493 Remove deprecated "size" from mempool txs (vasild) 724 - #18467 Improve documentation and return value of settxfee (fjahr) 725 - #18607 Fix named arguments in documentation (MarcoFalke) 726 - #17831 doc: Fix and extend getblockstats examples (asoltys) 727 - #18785 Prevent valgrind false positive in `rest_blockhash_by_height` (ryanofsky) 728 - #18999 log: Remove "No rpcpassword set" from logs (MarcoFalke) 729 - #19006 Avoid crash when `g_thread_http` was never started (MarcoFalke) 730 - #18594 cli: Display multiwallet balances in -getinfo (jonatack) 731 - #19056 Make gettxoutsetinfo/GetUTXOStats interruptible (MarcoFalke) 732 - #19112 Remove special case for unknown service flags (MarcoFalke) 733 - #18826 Expose txinwitness for coinbase in JSON form from RPC (rvagg) 734 - #19282 Rephrase generatetoaddress help, and use `PACKAGE_NAME` (luke-jr) 735 - #16377 don't automatically append inputs in walletcreatefundedpsbt (Sjors) 736 - #19200 Remove deprecated getaddressinfo fields (jonatack) 737 - #19133 rpc, cli, test: add bitcoin-cli -generate command (jonatack) 738 - #19469 Deprecate banscore field in getpeerinfo (jonatack) 739 - #16525 Dump transaction version as an unsigned integer in RPC/TxToUniv (TheBlueMatt) 740 - #19555 Deduplicate WriteHDKeypath() used in decodepsbt (theStack) 741 - #19589 Avoid useless mempool query in gettxoutproof (MarcoFalke) 742 - #19585 RPCResult Type of MempoolEntryDescription should be OBJ (stylesuxx) 743 - #19634 Document getwalletinfo's `unlocked_until` field as optional (justinmoon) 744 - #19658 Allow RPC to fetch all addrman records and add records to addrman (jnewbery) 745 - #19696 Fix addnode remove command error (fjahr) 746 - #18654 Separate bumpfee's psbt creation function into psbtbumpfee (achow101) 747 - #19655 Catch listsinceblock `target_confirmations` exceeding block count (adaminsky) 748 - #19644 Document returned error fields as optional if applicable (theStack) 749 - #19455 rpc generate: print useful help and error message (jonatack) 750 - #19550 Add listindices RPC (fjahr) 751 - #19169 Validate provided keys for `query_options` parameter in listunspent (PastaPastaPasta) 752 - #18244 fundrawtransaction and walletcreatefundedpsbt also lock manually selected coins (Sjors) 753 - #14687 zmq: Enable TCP keepalive (mruddy) 754 - #19405 Add network in/out connections to `getnetworkinfo` and `-getinfo` (jonatack) 755 - #19878 rawtransaction: Fix argument in combinerawtransaction help message (pinheadmz) 756 - #19940 Return fee and vsize from testmempoolaccept (gzhao408) 757 - #13686 zmq: Small cleanups in the ZMQ code (domob1812) 758 - #19386, #19528, #19717, #19849, #19994 Assert that RPCArg names are equal to CRPCCommand ones (MarcoFalke) 759 - #19725 Add connection type to getpeerinfo, improve logs (amitiuttarwar) 760 - #19969 Send RPC bug fix and touch-ups (Sjors) 761 - #18309 zmq: Add support to listen on multiple interfaces (n-thumann) 762 - #20055 Set HTTP Content-Type in bitcoin-cli (laanwj) 763 - #19956 Improve invalid vout value rpc error message (n1rna) 764 - #20101 Change no wallet loaded message to be clearer (achow101) 765 - #19998 Add `via_tor` to `getpeerinfo` output (hebasto) 766 - #19770 getpeerinfo: Deprecate "whitelisted" field (replaced by "permissions") (luke-jr) 767 - #20120 net, rpc, test, bugfix: update GetNetworkName, GetNetworksInfo, regression tests (jonatack) 768 - #20595 Improve heuristic hex transaction decoding (sipa) 769 - #20731 Add missing description of vout in getrawtransaction help text (benthecarman) 770 - #19328 Add gettxoutsetinfo `hash_type` option (fjahr) 771 - #19731 Expose nLastBlockTime/nLastTXTime as last `block/last_transaction` in getpeerinfo (jonatack) 772 - #19572 zmq: Create "sequence" notifier, enabling client-side mempool tracking (instagibbs) 773 - #20002 Expose peer network in getpeerinfo; simplify/improve -netinfo (jonatack) 774 775 ### GUI 776 - #17905 Avoid redundant tx status updates (ryanofsky) 777 - #18646 Use `PACKAGE_NAME` in exception message (fanquake) 778 - #17509 Save and load PSBT (Sjors) 779 - #18769 Remove bug fix for Qt < 5.5 (10xcryptodev) 780 - #15768 Add close window shortcut (IPGlider) 781 - #16224 Bilingual GUI error messages (hebasto) 782 - #18922 Do not translate InitWarning messages in debug.log (hebasto) 783 - #18152 Use NotificationStatus enum for signals to GUI (hebasto) 784 - #18587 Avoid wallet tryGetBalances calls in WalletModel::pollBalanceChanged (ryanofsky) 785 - #17597 Fix height of QR-less ReceiveRequestDialog (hebasto) 786 - #17918 Hide non PKHash-Addresses in signing address book (emilengler) 787 - #17956 Disable unavailable context menu items in transactions tab (kristapsk) 788 - #17968 Ensure that ModalOverlay is resized properly (hebasto) 789 - #17993 Balance/TxStatus polling update based on last block hash (furszy) 790 - #18424 Use parent-child relation to manage lifetime of OptionsModel object (hebasto) 791 - #18452 Fix shutdown when `waitfor*` cmds are called from RPC console (hebasto) 792 - #15202 Add Close All Wallets action (promag) 793 - #19132 lock `cs_main`, `m_cached_tip_mutex` in that order (vasild) 794 - #18898 Display warnings as rich text (hebasto) 795 - #19231 add missing translation.h include to fix build (fanquake) 796 - #18027 "PSBT Operations" dialog (gwillen) 797 - #19256 Change combiner for signals to `optional_last_value` (fanquake) 798 - #18896 Reset toolbar after all wallets are closed (hebasto) 799 - #18993 increase console command max length (10xcryptodev) 800 - #19323 Fix regression in *txoutset* in GUI console (hebasto) 801 - #19210 Get rid of cursor in out-of-focus labels (hebasto) 802 - #19011 Reduce `cs_main` lock accumulation during GUI startup (jonasschnelli) 803 - #19844 Remove usage of boost::bind (fanquake) 804 - #20479 Fix QPainter non-determinism on macOS (0.21 backport) (laanwj) 805 - gui#6 Do not truncate node flag strings in debugwindow peers details tab (Saibato) 806 - gui#8 Fix regression in TransactionTableModel (hebasto) 807 - gui#17 doc: Remove outdated comment in TransactionTablePriv (MarcoFalke) 808 - gui#20 Wrap tooltips in the intro window (hebasto) 809 - gui#30 Disable the main window toolbar when the modal overlay is shown (hebasto) 810 - gui#34 Show permissions instead of whitelisted (laanwj) 811 - gui#35 Parse params directly instead of through node (ryanofsky) 812 - gui#39 Add visual accenting for the 'Create new receiving address' button (hebasto) 813 - gui#40 Clarify block height label (hebasto) 814 - gui#43 bugfix: Call setWalletActionsEnabled(true) only for the first wallet (hebasto) 815 - gui#97 Relax GUI freezes during IBD (jonasschnelli) 816 - gui#71 Fix visual quality of text in QR image (hebasto) 817 - gui#96 Slight improve create wallet dialog (Sjors) 818 - gui#102 Fix SplashScreen crash when run with -disablewallet (hebasto) 819 - gui#116 Fix unreasonable default size of the main window without loaded wallets (hebasto) 820 - gui#120 Fix multiwallet transaction notifications (promag) 821 822 ### Build system 823 - #18504 Drop bitcoin-tx and bitcoin-wallet dependencies on libevent (ryanofsky) 824 - #18586 Bump gitian descriptors to 0.21 (laanwj) 825 - #17595 guix: Enable building for `x86_64-w64-mingw32` target (dongcarl) 826 - #17929 add linker optimisation flags to gitian & guix (Linux) (fanquake) 827 - #18556 Drop make dist in gitian builds (hebasto) 828 - #18088 ensure we aren't using GNU extensions (fanquake) 829 - #18741 guix: Make source tarball using git-archive (dongcarl) 830 - #18843 warn on potentially uninitialized reads (vasild) 831 - #17874 make linker checks more robust (fanquake) 832 - #18535 remove -Qunused-arguments workaround for clang + ccache (fanquake) 833 - #18743 Add --sysroot option to mac os native compile flags (ryanofsky) 834 - #18216 test, build: Enable -Werror=sign-compare (Empact) 835 - #18928 don't pass -w when building for Windows (fanquake) 836 - #16710 Enable -Wsuggest-override if available (hebasto) 837 - #18738 Suppress -Wdeprecated-copy warnings (hebasto) 838 - #18862 Remove fdelt_chk back-compat code and sanity check (fanquake) 839 - #18887 enable -Werror=gnu (vasild) 840 - #18956 enforce minimum required Windows version (7) (fanquake) 841 - #18958 guix: Make V=1 more powerful for debugging (dongcarl) 842 - #18677 Multiprocess build support (ryanofsky) 843 - #19094 Only allow ASCII identifiers (laanwj) 844 - #18820 Propagate well-known vars into depends (dongcarl) 845 - #19173 turn on --enable-c++17 by --enable-fuzz (vasild) 846 - #18297 Use pkg-config in BITCOIN_QT_CONFIGURE for all hosts including Windows (hebasto) 847 - #19301 don't warn when doxygen isn't found (fanquake) 848 - #19240 macOS toolchain simplification and bump (dongcarl) 849 - #19356 Fix search for brew-installed BDB 4 on OS X (gwillen) 850 - #19394 Remove unused `RES_IMAGES` (Bushstar) 851 - #19403 improve `__builtin_clz*` detection (fanquake) 852 - #19375 target Windows 7 when building libevent and fix ipv6 usage (fanquake) 853 - #19331 Do not include server symbols in wallet (MarcoFalke) 854 - #19257 remove BIP70 configure option (fanquake) 855 - #18288 Add MemorySanitizer (MSan) in Travis to detect use of uninitialized memory (practicalswift) 856 - #18307 Require pkg-config for all of the hosts (hebasto) 857 - #19445 Update msvc build to use ISO standard C++17 (sipsorcery) 858 - #18882 fix -Wformat-security check when compiling with GCC (fanquake) 859 - #17919 Allow building with system clang (dongcarl) 860 - #19553 pass -fcommon when building genisoimage (fanquake) 861 - #19565 call `AC_PATH_TOOL` for dsymutil in macOS cross-compile (fanquake) 862 - #19530 build LTO support into Apple's ld64 (theuni) 863 - #19525 add -Wl,-z,separate-code to hardening flags (fanquake) 864 - #19667 set minimum required Boost to 1.58.0 (fanquake) 865 - #19672 make clean removes .gcda and .gcno files from fuzz directory (Crypt-iQ) 866 - #19622 Drop ancient hack in gitian-linux descriptor (hebasto) 867 - #19688 Add support for llvm-cov (hebasto) 868 - #19718 Add missed gcov files to 'make clean' (hebasto) 869 - #19719 Add Werror=range-loop-analysis (MarcoFalke) 870 - #19015 Enable some commonly enabled compiler diagnostics (practicalswift) 871 - #19689 build, qt: Add Qt version checking (hebasto) 872 - #17396 modest Android improvements (icota) 873 - #18405 Drop all of the ZeroMQ patches (hebasto) 874 - #15704 Move Win32 defines to configure.ac to ensure they are globally defined (luke-jr) 875 - #19761 improve sed robustness by not using sed (fanquake) 876 - #19758 Drop deprecated and unused `GUARDED_VAR` and `PT_GUARDED_VAR` annotations (hebasto) 877 - #18921 add stack-clash and control-flow protection options to hardening flags (fanquake) 878 - #19803 Bugfix: Define and use `HAVE_FDATASYNC` correctly outside LevelDB (luke-jr) 879 - #19685 CMake invocation cleanup (dongcarl) 880 - #19861 add /usr/local/ to `LCOV_FILTER_PATTERN` for macOS builds (Crypt-iQ) 881 - #19916 allow user to specify `DIR_FUZZ_SEED_CORPUS` for `cov_fuzz` (Crypt-iQ) 882 - #19944 Update secp256k1 subtree (including BIP340 support) (sipa) 883 - #19558 Split pthread flags out of ldflags and dont use when building libconsensus (fanquake) 884 - #19959 patch qt libpng to fix powerpc build (fanquake) 885 - #19868 Fix target name (hebasto) 886 - #19960 The vcpkg tool has introduced a proper way to use manifests (sipsorcery) 887 - #20065 fuzz: Configure check for main function (MarcoFalke) 888 - #18750 Optionally skip external warnings (vasild) 889 - #20147 Update libsecp256k1 (endomorphism, test improvements) (sipa) 890 - #20156 Make sqlite support optional (compile-time) (luke-jr) 891 - #20318 Ensure source tarball has leading directory name (MarcoFalke) 892 - #20447 Patch `qt_intersect_spans` to avoid non-deterministic behavior in LLVM 8 (achow101) 893 - #20505 Avoid secp256k1.h include from system (dergoegge) 894 - #20527 Do not ignore Homebrew's SQLite on macOS (hebasto) 895 - #20478 Don't set BDB flags when configuring without (jonasschnelli) 896 - #20563 Check that Homebrew's berkeley-db4 package is actually installed (hebasto) 897 - #19493 Fix clang build on Mac (bvbfan) 898 899 ### Tests and QA 900 - #18593 Complete impl. of `msg_merkleblock` and `wait_for_merkleblock` (theStack) 901 - #18609 Remove REJECT message code (hebasto) 902 - #18584 Check that the version message does not leak the local address (MarcoFalke) 903 - #18597 Extend `wallet_dump` test to cover comments (MarcoFalke) 904 - #18596 Try once more when RPC connection fails on Windows (MarcoFalke) 905 - #18451 shift coverage from getunconfirmedbalance to getbalances (jonatack) 906 - #18631 appveyor: Disable functional tests for now (MarcoFalke) 907 - #18628 Add various low-level p2p tests (MarcoFalke) 908 - #18615 Avoid accessing free'd memory in `validation_chainstatemanager_tests` (MarcoFalke) 909 - #18571 fuzz: Disable debug log file (MarcoFalke) 910 - #18653 add coverage for bitcoin-cli -rpcwait (jonatack) 911 - #18660 Verify findCommonAncestor always initializes outputs (ryanofsky) 912 - #17669 Have coins simulation test also use CCoinsViewDB (jamesob) 913 - #18662 Replace gArgs with local argsman in bench (MarcoFalke) 914 - #18641 Create cached blocks not in the future (MarcoFalke) 915 - #18682 fuzz: `http_request` workaround for libevent < 2.1.1 (theStack) 916 - #18692 Bump timeout in `wallet_import_rescan` (MarcoFalke) 917 - #18695 Replace boost::mutex with std::mutex (hebasto) 918 - #18633 Properly raise FailedToStartError when rpc shutdown before warmup finished (MarcoFalke) 919 - #18675 Don't initialize PrecomputedTransactionData in txvalidationcache tests (jnewbery) 920 - #18691 Add `wait_for_cookie_credentials()` to framework for rpcwait tests (jonatack) 921 - #18672 Add further BIP37 size limit checks to `p2p_filter.py` (theStack) 922 - #18721 Fix linter issue (hebasto) 923 - #18384 More specific `feature_segwit` test error messages and fixing incorrect comments (gzhao408) 924 - #18575 bench: Remove requirement that all benches use same testing setup (MarcoFalke) 925 - #18690 Check object hashes in `wait_for_getdata` (robot-visions) 926 - #18712 display command line options passed to `send_cli()` in debug log (jonatack) 927 - #18745 Check submitblock return values (MarcoFalke) 928 - #18756 Use `wait_for_getdata()` in `p2p_compactblocks.py` (theStack) 929 - #18724 Add coverage for -rpcwallet cli option (jonatack) 930 - #18754 bench: Add caddrman benchmarks (vasild) 931 - #18585 Use zero-argument super() shortcut (Python 3.0+) (theStack) 932 - #18688 fuzz: Run in parallel (MarcoFalke) 933 - #18770 Remove raw-tx byte juggling in `mempool_reorg` (MarcoFalke) 934 - #18805 Add missing `sync_all` to `wallet_importdescriptors.py` (achow101) 935 - #18759 bench: Start nodes with -nodebuglogfile (MarcoFalke) 936 - #18774 Added test for upgradewallet RPC (brakmic) 937 - #18485 Add `mempool_updatefromblock.py` (hebasto) 938 - #18727 Add CreateWalletFromFile test (ryanofsky) 939 - #18726 Check misbehavior more independently in `p2p_filter.py` (robot-visions) 940 - #18825 Fix message for `ECC_InitSanityCheck` test (fanquake) 941 - #18576 Use unittest for `test_framework` unit testing (gzhao408) 942 - #18828 Strip down previous releases boilerplate (MarcoFalke) 943 - #18617 Add factor option to adjust test timeouts (brakmic) 944 - #18855 `feature_backwards_compatibility.py` test downgrade after upgrade (achow101) 945 - #18864 Add v0.16.3 backwards compatibility test, bump v0.19.0.1 to v0.19.1 (Sjors) 946 - #18917 fuzz: Fix vector size problem in system fuzzer (brakmic) 947 - #18901 fuzz: use std::optional for `sep_pos_opt` variable (brakmic) 948 - #18888 Remove RPCOverloadWrapper boilerplate (MarcoFalke) 949 - #18952 Avoid os-dependent path (fametrano) 950 - #18938 Fill fuzzing coverage gaps for functions in consensus/validation.h, primitives/block.h and util/translation.h (practicalswift) 951 - #18986 Add capability to disable RPC timeout in functional tests (rajarshimaitra) 952 - #18530 Add test for -blocksonly and -whitelistforcerelay param interaction (glowang) 953 - #19014 Replace `TEST_PREVIOUS_RELEASES` env var with `test_framework` option (MarcoFalke) 954 - #19052 Don't limit fuzzing inputs to 1 MB for afl-fuzz (now: ∞ ∀ fuzzers) (practicalswift) 955 - #19060 Remove global `wait_until` from `p2p_getdata` (MarcoFalke) 956 - #18926 Pass ArgsManager into `getarg_tests` (glowang) 957 - #19110 Explain that a bug should be filed when the tests fail (MarcoFalke) 958 - #18965 Implement `base58_decode` (10xcryptodev) 959 - #16564 Always define the `raii_event_tests` test suite (candrews) 960 - #19122 Add missing `sync_blocks` to `wallet_hd` (MarcoFalke) 961 - #18875 fuzz: Stop nodes in `process_message*` fuzzers (MarcoFalke) 962 - #18974 Check that invalid witness destinations can not be imported (MarcoFalke) 963 - #18210 Type hints in Python tests (kiminuo) 964 - #19159 Make valgrind.supp work on aarch64 (MarcoFalke) 965 - #19082 Moved the CScriptNum asserts into the unit test in script.py (gillichu) 966 - #19172 Do not swallow flake8 exit code (hebasto) 967 - #19188 Avoid overwriting the NodeContext member of the testing setup [-Wshadow-field] (MarcoFalke) 968 - #18890 `disconnect_nodes` should warn if nodes were already disconnected (robot-visions) 969 - #19227 change blacklist to blocklist (TrentZ) 970 - #19230 Move base58 to own module to break circular dependency (sipa) 971 - #19083 `msg_mempool`, `fRelay`, and other bloomfilter tests (gzhao408) 972 - #16756 Connection eviction logic tests (mzumsande) 973 - #19177 Fix and clean `p2p_invalid_messages` functional tests (troygiorshev) 974 - #19264 Don't import asyncio to test magic bytes (jnewbery) 975 - #19178 Make `mininode_lock` non-reentrant (jnewbery) 976 - #19153 Mempool compatibility test (S3RK) 977 - #18434 Add a test-security target and run it in CI (fanquake) 978 - #19252 Wait for disconnect in `disconnect_p2ps` + bloomfilter test followups (gzhao408) 979 - #19298 Add missing `sync_blocks` (MarcoFalke) 980 - #19304 Check that message sends successfully when header is split across two buffers (troygiorshev) 981 - #19208 move `sync_blocks` and `sync_mempool` functions to `test_framework.py` (ycshao) 982 - #19198 Check that peers with forcerelay permission are not asked to feefilter (MarcoFalke) 983 - #19351 add two edge case tests for CSubNet (vasild) 984 - #19272 net, test: invalid p2p messages and test framework improvements (jonatack) 985 - #19348 Bump linter versions (duncandean) 986 - #19366 Provide main(…) function in fuzzer. Allow building uninstrumented harnesses with --enable-fuzz (practicalswift) 987 - #19412 move `TEST_RUNNER_EXTRA` into native tsan setup (fanquake) 988 - #19368 Improve functional tests compatibility with BSD/macOS (S3RK) 989 - #19028 Set -logthreadnames in unit tests (MarcoFalke) 990 - #18649 Add std::locale::global to list of locale dependent functions (practicalswift) 991 - #19140 Avoid fuzzer-specific nullptr dereference in libevent when handling PROXY requests (practicalswift) 992 - #19214 Auto-detect SHA256 implementation in benchmarks (sipa) 993 - #19353 Fix mistakenly swapped "previous" and "current" lock orders (hebasto) 994 - #19533 Remove unnecessary `cs_mains` in `denialofservice_tests` (jnewbery) 995 - #19423 add functional test for txrelay during and after IBD (gzhao408) 996 - #16878 Fix non-deterministic coverage of test `DoS_mapOrphans` (davereikher) 997 - #19548 fuzz: add missing overrides to `signature_checker` (jonatack) 998 - #19562 Fix fuzzer compilation on macOS (freenancial) 999 - #19370 Static asserts for consistency of fee defaults (domob1812) 1000 - #19599 clean `message_count` and `last_message` (troygiorshev) 1001 - #19597 test decodepsbt fee calculation (count input value only once per UTXO) (theStack) 1002 - #18011 Replace current benchmarking framework with nanobench (martinus) 1003 - #19489 Fail `wait_until` early if connection is lost (MarcoFalke) 1004 - #19340 Preserve the `LockData` initial state if "potential deadlock detected" exception thrown (hebasto) 1005 - #19632 Catch decimal.InvalidOperation from `TestNodeCLI#send_cli` (Empact) 1006 - #19098 Remove duplicate NodeContext hacks (ryanofsky) 1007 - #19649 Restore test case for p2p transaction blinding (instagibbs) 1008 - #19657 Wait until `is_connected` in `add_p2p_connection` (MarcoFalke) 1009 - #19631 Wait for 'cmpctblock' in `p2p_compactblocks` when it is expected (Empact) 1010 - #19674 use throwaway _ variable for unused loop counters (theStack) 1011 - #19709 Fix 'make cov' with clang (hebasto) 1012 - #19564 `p2p_feefilter` improvements (logging, refactoring, speedup) (theStack) 1013 - #19756 add `sync_all` to fix race condition in wallet groups test (kallewoof) 1014 - #19727 Removing unused classes from `p2p_leak.py` (dhruv) 1015 - #19722 Add test for getblockheader verboseness (torhte) 1016 - #19659 Add a seed corpus generation option to the fuzzing `test_runner` (darosior) 1017 - #19775 Activate segwit in TestChain100Setup (MarcoFalke) 1018 - #19760 Remove confusing mininode terminology (jnewbery) 1019 - #19752 Update `wait_until` usage in tests not to use the one from utils (slmtpz) 1020 - #19839 Set appveyor VM version to previous Visual Studio 2019 release (sipsorcery) 1021 - #19830 Add tsan supp for leveldb::DBImpl::DeleteObsoleteFiles (MarcoFalke) 1022 - #19710 bench: Prevent thread oversubscription and decreases the variance of result values (hebasto) 1023 - #19842 Update the vcpkg checkout commit ID in appveyor config (sipsorcery) 1024 - #19507 Expand functional zmq transaction tests (instagibbs) 1025 - #19816 Rename wait until helper to `wait_until_helper` (MarcoFalke) 1026 - #19859 Fixes failing functional test by changing version (n-thumann) 1027 - #19887 Fix flaky `wallet_basic` test (fjahr) 1028 - #19897 Change `FILE_CHAR_BLOCKLIST` to `FILE_CHARS_DISALLOWED` (verretor) 1029 - #19800 Mockwallet (MarcoFalke) 1030 - #19922 Run `rpc_txoutproof.py` even with wallet disabled (MarcoFalke) 1031 - #19936 batch rpc with params (instagibbs) 1032 - #19971 create default wallet in extended tests (Sjors) 1033 - #19781 add parameterized constructor for `msg_sendcmpct()` (theStack) 1034 - #19963 Clarify blocksonly whitelistforcerelay test (t-bast) 1035 - #20022 Use explicit p2p objects where available (guggero) 1036 - #20028 Check that invalid peer traffic is accounted for (MarcoFalke) 1037 - #20004 Add signet witness commitment section parse tests (MarcoFalke) 1038 - #20034 Get rid of default wallet hacks (ryanofsky) 1039 - #20069 Mention commit id in scripted diff error (laanwj) 1040 - #19947 Cover `change_type` option of "walletcreatefundedpsbt" RPC (guggero) 1041 - #20126 `p2p_leak_tx.py` improvements (use MiniWallet, add `p2p_lock` acquires) (theStack) 1042 - #20129 Don't export `in6addr_loopback` (vasild) 1043 - #20131 Remove unused nVersion=1 in p2p tests (MarcoFalke) 1044 - #20161 Minor Taproot follow-ups (sipa) 1045 - #19401 Use GBT to get block versions correct (luke-jr) 1046 - #20159 `mining_getblocktemplate_longpoll.py` improvements (use MiniWallet, add logging) (theStack) 1047 - #20039 Convert amounts from float to decimal (prayank23) 1048 - #20112 Speed up `wallet_resendwallettransactions` with mockscheduler RPC (MarcoFalke) 1049 - #20247 fuzz: Check for addrv1 compatibility before using addrv1 serializer. Fuzz addrv2 serialization (practicalswift) 1050 - #20167 Add test for -blockversion (MarcoFalke) 1051 - #19877 Clarify `rpc_net` & `p2p_disconnect_ban functional` tests (amitiuttarwar) 1052 - #20258 Remove getnettotals/getpeerinfo consistency test (jnewbery) 1053 - #20242 fuzz: Properly initialize PrecomputedTransactionData (MarcoFalke) 1054 - #20262 Skip --descriptor tests if sqlite is not compiled (achow101) 1055 - #18788 Update more tests to work with descriptor wallets (achow101) 1056 - #20289 fuzz: Check for addrv1 compatibility before using addrv1 serializer/deserializer on CService (practicalswift) 1057 - #20290 fuzz: Fix DecodeHexTx fuzzing harness issue (practicalswift) 1058 - #20245 Run `script_assets_test` even if built --with-libs=no (MarcoFalke) 1059 - #20300 fuzz: Add missing `ECC_Start` to `descriptor_parse` test (S3RK) 1060 - #20283 Only try witness deser when checking for witness deser failure (MarcoFalke) 1061 - #20303 fuzz: Assert expected DecodeHexTx behaviour when using legacy decoding (practicalswift) 1062 - #20316 Fix `wallet_multiwallet` test issue on Windows (MarcoFalke) 1063 - #20326 Fix `ecdsa_verify` in test framework (stepansnigirev) 1064 - #20328 cirrus: Skip tasks on the gui repo main branch (MarcoFalke) 1065 - #20355 fuzz: Check for addrv1 compatibility before using addrv1 serializer/deserializer on CSubNet (practicalswift) 1066 - #20332 Mock IBD in `net_processing` fuzzers (MarcoFalke) 1067 - #20218 Suppress `epoll_ctl` data race (MarcoFalke) 1068 - #20375 fuzz: Improve coverage for CPartialMerkleTree fuzzing harness (practicalswift) 1069 - #19669 contrib: Fixup valgrind suppressions file (MarcoFalke) 1070 - #18879 valgrind: remove outdated suppressions (fanquake) 1071 - #19226 Add BerkeleyDatabase tsan suppression (MarcoFalke) 1072 - #20379 Remove no longer needed UBSan suppression (float divide-by-zero in validation.cpp) (practicalswift) 1073 - #18190, #18736, #18744, #18775, #18783, #18867, #18994, #19065, 1074 #19067, #19143, #19222, #19247, #19286, #19296, #19379, #19934, 1075 #20188, #20395 Add fuzzing harnessses (practicalswift) 1076 - #18638 Use mockable time for ping/pong, add tests (MarcoFalke) 1077 - #19951 CNetAddr scoped ipv6 test coverage, rename scopeId to `m_scope_id` (jonatack) 1078 - #20027 Use mockable time everywhere in `net_processing` (sipa) 1079 - #19105 Add Muhash3072 implementation in Python (fjahr) 1080 - #18704, #18752, #18753, #18765, #18839, #18866, #18873, #19022, 1081 #19023, #19429, #19552, #19778, #20176, #20179, #20214, #20292, 1082 #20299, #20322 Fix intermittent test issues (MarcoFalke) 1083 - #20390 CI/Cirrus: Skip `merge_base` step for non-PRs (luke-jr) 1084 - #18634 ci: Add fuzzbuzz integration configuration file (practicalswift) 1085 - #18591 Add C++17 build to Travis (sipa) 1086 - #18581, #18667, #18798, #19495, #19519, #19538 CI improvements (hebasto) 1087 - #18683, #18705, #18735, #18778, #18799, #18829, #18912, #18929, 1088 #19008, #19041, #19164, #19201, #19267, #19276, #19321, #19371, 1089 #19427, #19730, #19746, #19881, #20294, #20339, #20368 CI improvements (MarcoFalke) 1090 - #20489, #20506 MSVC CI improvements (sipsorcery) 1091 1092 ### Miscellaneous 1093 - #18713 scripts: Add macho stack canary check to security-check.py (fanquake) 1094 - #18629 scripts: Add pe .reloc section check to security-check.py (fanquake) 1095 - #18437 util: `Detect posix_fallocate()` instead of assuming (vasild) 1096 - #18413 script: Prevent ub when computing abs value for num opcode serialize (pierreN) 1097 - #18443 lockedpool: avoid sensitive data in core files (FreeBSD) (vasild) 1098 - #18885 contrib: Move optimize-pngs.py script to the maintainer repo (MarcoFalke) 1099 - #18317 Serialization improvements step 6 (all except wallet/gui) (sipa) 1100 - #16127 More thread safety annotation coverage (ajtowns) 1101 - #19228 Update libsecp256k1 subtree (sipa) 1102 - #19277 util: Add assert identity function (MarcoFalke) 1103 - #19491 util: Make assert work with any value (MarcoFalke) 1104 - #19205 script: `previous_release.sh` rewritten in python (bliotti) 1105 - #15935 Add <datadir>/settings.json persistent settings storage (ryanofsky) 1106 - #19439 script: Linter to check commit message formatting (Ghorbanian) 1107 - #19654 lint: Improve commit message linter in travis (fjahr) 1108 - #15382 util: Add runcommandparsejson (Sjors) 1109 - #19614 util: Use `have_fdatasync` to determine fdatasync() use (fanquake) 1110 - #19813 util, ci: Hard code previous release tarball checksums (hebasto) 1111 - #19841 Implement Keccak and `SHA3_256` (sipa) 1112 - #19643 Add -netinfo peer connections dashboard (jonatack) 1113 - #15367 feature: Added ability for users to add a startup command (benthecarman) 1114 - #19984 log: Remove static log message "Initializing chainstate Chainstate [ibd] @ height -1 (null)" (practicalswift) 1115 - #20092 util: Do not use gargs global in argsmanager member functions (hebasto) 1116 - #20168 contrib: Fix `gen_key_io_test_vectors.py` imports (MarcoFalke) 1117 - #19624 Warn on unknown `rw_settings` (MarcoFalke) 1118 - #20257 Update secp256k1 subtree to latest master (sipa) 1119 - #20346 script: Modify security-check.py to use "==" instead of "is" for literal comparison (tylerchambers) 1120 - #18881 Prevent UB in DeleteLock() function (hebasto) 1121 - #19180, #19189, #19190, #19220, #19399 Replace RecursiveMutex with Mutex (hebasto) 1122 - #19347 Make `cs_inventory` nonrecursive (jnewbery) 1123 - #19773 Avoid recursive lock in IsTrusted (promag) 1124 - #18790 Improve thread naming (hebasto) 1125 - #20140 Restore compatibility with old CSubNet serialization (sipa) 1126 - #17775 DecodeHexTx: Try case where txn has inputs first (instagibbs) 1127 1128 ### Documentation 1129 - #18502 Update docs for getbalance (default minconf should be 0) (uzyn) 1130 - #18632 Fix macos comments in release-notes (MarcoFalke) 1131 - #18645 Update thread information in developer docs (jnewbery) 1132 - #18709 Note why we can't use `thread_local` with glibc back compat (fanquake) 1133 - #18410 Improve commenting for coins.cpp|h (jnewbery) 1134 - #18157 fixing init.md documentation to not require rpcpassword (jkcd) 1135 - #18739 Document how to fuzz Bitcoin Core using Honggfuzz (practicalswift) 1136 - #18779 Better explain GNU ld's dislike of ld64's options (fanquake) 1137 - #18663 Mention build docs in README.md (saahilshangle) 1138 - #18810 Update rest info on block size and json (chrisabrams) 1139 - #18939 Add c++17-enable flag to fuzzing instructions (mzumsande) 1140 - #18957 Add a link from ZMQ doc to ZMQ example in contrib/ (meeDamian) 1141 - #19058 Drop protobuf stuff (hebasto) 1142 - #19061 Add link to Visual Studio build readme (maitrebitcoin) 1143 - #19072 Expand section on Getting Started (MarcoFalke) 1144 - #18968 noban precludes maxuploadtarget disconnects (MarcoFalke) 1145 - #19005 Add documentation for 'checklevel' argument in 'verifychain' RPC… (kcalvinalvin) 1146 - #19192 Extract net permissions doc (MarcoFalke) 1147 - #19071 Separate repository for the gui (MarcoFalke) 1148 - #19018 fixing description of the field sequence in walletcreatefundedpsbt RPC method (limpbrains) 1149 - #19367 Span pitfalls (sipa) 1150 - #19408 Windows WSL build recommendation to temporarily disable Win32 PE support (sipsorcery) 1151 - #19407 explain why passing -mlinker-version is required when cross-compiling (fanquake) 1152 - #19452 afl fuzzing comment about afl-gcc and afl-g++ (Crypt-iQ) 1153 - #19258 improve subtree check instructions (Sjors) 1154 - #19474 Use precise permission flags where possible (MarcoFalke) 1155 - #19494 CONTRIBUTING.md improvements (jonatack) 1156 - #19268 Add non-thread-safe note to FeeFilterRounder::round() (hebasto) 1157 - #19547 Update macOS cross compilation dependencies for Focal (hebasto) 1158 - #19617 Clang 8 or later is required with `FORCE_USE_SYSTEM_CLANG` (fanquake) 1159 - #19639 Remove Reference Links #19582 (RobertHosking) 1160 - #19605 Set `CC_FOR_BUILD` when building on OpenBSD (fanquake) 1161 - #19765 Fix getmempoolancestors RPC result doc (MarcoFalke) 1162 - #19786 Remove label from good first issue template (MarcoFalke) 1163 - #19646 Updated outdated help command for getblocktemplate (jakeleventhal) 1164 - #18817 Document differences in bitcoind and bitcoin-qt locale handling (practicalswift) 1165 - #19870 update PyZMQ install instructions, fix `zmq_sub.py` file permissions (jonatack) 1166 - #19903 Update build-openbsd.md with GUI support (grubles) 1167 - #19241 help: Generate checkpoint height from chainparams (luke-jr) 1168 - #18949 Add CODEOWNERS file to automatically nominate PR reviewers (adamjonas) 1169 - #20014 Mention signet in -help output (hebasto) 1170 - #20015 Added default signet config for linearize script (gr0kchain) 1171 - #19958 Better document features of feelers (naumenkogs) 1172 - #19871 Clarify scope of eviction protection of outbound block-relay peers (ariard) 1173 - #20076 Update and improve files.md (hebasto) 1174 - #20107 Collect release-notes snippets (MarcoFalke) 1175 - #20109 Release notes and followups from 19339 (glozow) 1176 - #20090 Tiny followups to new getpeerinfo connection type field (amitiuttarwar) 1177 - #20152 Update wallet files in files.md (hebasto) 1178 - #19124 Document `ALLOW_HOST_PACKAGES` dependency option (skmcontrib) 1179 - #20271 Document that wallet salvage is experimental (MarcoFalke) 1180 - #20281 Correct getblockstats documentation for `(sw)total_weight` (shesek) 1181 - #20279 release process updates/fixups (jonatack) 1182 - #20238 Missing comments for signet parameters (decryp2kanon) 1183 - #20756 Add missing field (permissions) to the getpeerinfo help (amitiuttarwar) 1184 - #20668 warn that incoming conns are unlikely when not using default ports (adamjonas) 1185 - #19961 tor.md updates (jonatack) 1186 - #19050 Add warning for rest interface limitation (fjahr) 1187 - #19390 doc/REST-interface: Remove stale info (luke-jr) 1188 - #19344 docs: update testgen usage example (Bushstar) 1189 1190 Credits 1191 ======= 1192 1193 Thanks to everyone who directly contributed to this release: 1194 1195 - 10xcryptodev 1196 - Aaron Clauson 1197 - Aaron Hook 1198 - Adam Jonas 1199 - Adam Soltys 1200 - Adam Stein 1201 - Akio Nakamura 1202 - Alex Willmer 1203 - Amir Ghorbanian 1204 - Amiti Uttarwar 1205 - Andrew Chow 1206 - Andrew Toth 1207 - Anthony Fieroni 1208 - Anthony Towns 1209 - Antoine Poinsot 1210 - Antoine Riard 1211 - Ben Carman 1212 - Ben Woosley 1213 - Benoit Verret 1214 - Brian Liotti 1215 - Bushstar 1216 - Calvin Kim 1217 - Carl Dong 1218 - Chris Abrams 1219 - Chris L 1220 - Christopher Coverdale 1221 - codeShark149 1222 - Cory Fields 1223 - Craig Andrews 1224 - Damian Mee 1225 - Daniel Kraft 1226 - Danny Lee 1227 - David Reikher 1228 - DesWurstes 1229 - Dhruv Mehta 1230 - Duncan Dean 1231 - Elichai Turkel 1232 - Elliott Jin 1233 - Emil Engler 1234 - Ethan Heilman 1235 - eugene 1236 - Fabian Jahr 1237 - fanquake 1238 - Ferdinando M. Ametrano 1239 - freenancial 1240 - furszy 1241 - Gillian Chu 1242 - Gleb Naumenko 1243 - Glenn Willen 1244 - Gloria Zhao 1245 - glowang 1246 - gr0kchain 1247 - Gregory Sanders 1248 - grubles 1249 - gzhao408 1250 - Harris 1251 - Hennadii Stepanov 1252 - Hugo Nguyen 1253 - Igor Cota 1254 - Ivan Metlushko 1255 - Ivan Vershigora 1256 - Jake Leventhal 1257 - James O'Beirne 1258 - Jeremy Rubin 1259 - jgmorgan 1260 - Jim Posen 1261 - “jkcd” 1262 - jmorgan 1263 - John Newbery 1264 - Johnson Lau 1265 - Jon Atack 1266 - Jonas Schnelli 1267 - Jonathan Schoeller 1268 - João Barbosa 1269 - Justin Moon 1270 - kanon 1271 - Karl-Johan Alm 1272 - Kiminuo 1273 - Kristaps Kaupe 1274 - lontivero 1275 - Luke Dashjr 1276 - Marcin Jachymiak 1277 - MarcoFalke 1278 - Martin Ankerl 1279 - Martin Zumsande 1280 - maskoficarus 1281 - Matt Corallo 1282 - Matthew Zipkin 1283 - MeshCollider 1284 - Miguel Herranz 1285 - MIZUTA Takeshi 1286 - mruddy 1287 - Nadav Ivgi 1288 - Neha Narula 1289 - Nicolas Thumann 1290 - Niklas Gögge 1291 - Nima Yazdanmehr 1292 - nsa 1293 - nthumann 1294 - Oliver Gugger 1295 - pad 1296 - pasta 1297 - Peter Bushnell 1298 - pierrenn 1299 - Pieter Wuille 1300 - practicalswift 1301 - Prayank 1302 - Raúl Martínez (RME) 1303 - RandyMcMillan 1304 - Rene Pickhardt 1305 - Riccardo Masutti 1306 - Robert 1307 - Rod Vagg 1308 - Roy Shao 1309 - Russell Yanofsky 1310 - Saahil Shangle 1311 - sachinkm77 1312 - saibato 1313 - Samuel Dobson 1314 - sanket1729 1315 - Sebastian Falbesoner 1316 - Seleme Topuz 1317 - Sishir Giri 1318 - Sjors Provoost 1319 - skmcontrib 1320 - Stepan Snigirev 1321 - Stephan Oeste 1322 - Suhas Daftuar 1323 - t-bast 1324 - Tom Harding 1325 - Torhte Butler 1326 - TrentZ 1327 - Troy Giorshev 1328 - tryphe 1329 - Tyler Chambers 1330 - U-Zyn Chua 1331 - Vasil Dimov 1332 - wiz 1333 - Wladimir J. van der Laan 1334 1335 As well as to everyone that helped with translations on 1336 [Transifex](https://www.transifex.com/bitcoin/bitcoin/).