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diff --git a/doc/release-notes/release-notes-0.21.0.md b/doc/release-notes/release-notes-0.21.0.md new file mode 100644 index 0000000000..66aee77643 --- /dev/null +++ b/doc/release-notes/release-notes-0.21.0.md @@ -0,0 +1,1336 @@ +0.21.0 Release Notes +==================== + +Bitcoin Core version 0.21.0 is now available from: + + <https://bitcoincore.org/bin/bitcoin-core-0.21.0/> + +This release includes new features, various bug fixes and performance +improvements, as well as updated translations. + +Please report bugs using the issue tracker at GitHub: + + <https://github.com/bitcoin/bitcoin/issues> + +To receive security and update notifications, please subscribe to: + + <https://bitcoincore.org/en/list/announcements/join/> + +How to Upgrade +============== + +If you are running an older version, shut it down. Wait until it has completely +shut down (which might take a few minutes in some cases), then run the +installer (on Windows) or just copy over `/Applications/Bitcoin-Qt` (on Mac) +or `bitcoind`/`bitcoin-qt` (on Linux). + +Upgrading directly from a version of Bitcoin Core that has reached its EOL is +possible, but it might take some time if the data directory needs to be migrated. Old +wallet versions of Bitcoin Core are generally supported. + +Compatibility +============== + +Bitcoin Core is supported and extensively tested on operating systems +using the Linux kernel, macOS 10.12+, and Windows 7 and newer. Bitcoin +Core should also work on most other Unix-like systems but is not as +frequently tested on them. It is not recommended to use Bitcoin Core on +unsupported systems. + +From Bitcoin Core 0.20.0 onwards, macOS versions earlier than 10.12 are no +longer supported. Additionally, Bitcoin Core does not yet change appearance +when macOS "dark mode" is activated. + +The node's known peers are persisted to disk in a file called `peers.dat`. The +format of this file has been changed in a backwards-incompatible way in order to +accommodate the storage of Tor v3 and other BIP155 addresses. This means that if +the file is modified by 0.21.0 or newer then older versions will not be able to +read it. Those old versions, in the event of a downgrade, will log an error +message "Incorrect keysize in addrman deserialization" and will continue normal +operation as if the file was missing, creating a new empty one. (#19954, #20284) + +Notable changes +=============== + +P2P and network changes +----------------------- + +- The mempool now tracks whether transactions submitted via the wallet or RPCs + have been successfully broadcast. Every 10-15 minutes, the node will try to + announce unbroadcast transactions until a peer requests it via a `getdata` + message or the transaction is removed from the mempool for other reasons. + The node will not track the broadcast status of transactions submitted to the + node using P2P relay. This version reduces the initial broadcast guarantees + for wallet transactions submitted via P2P to a node running the wallet. (#18038) + +- The size of the set of transactions that peers have announced and we consider + for requests has been reduced from 100000 to 5000 (per peer), and further + announcements will be ignored when that limit is reached. If you need to dump + (very) large batches of transactions, exceptions can be made for trusted + peers using the "relay" network permission. For localhost for example it can + be enabled using the command line option `-whitelist=relay@127.0.0.1`. + (#19988) + +- This release adds support for Tor version 3 hidden services, and rumoring them + over the network to other peers using + [BIP155](https://github.com/bitcoin/bips/blob/master/bip-0155.mediawiki). + Version 2 hidden services are still fully supported by Bitcoin Core, but the + Tor network will start + [deprecating](https://blog.torproject.org/v2-deprecation-timeline) them in the + coming months. (#19954) + +- The Tor onion service that is automatically created by setting the + `-listenonion` configuration parameter will now be created as a Tor v3 service + instead of Tor v2. The private key that was used for Tor v2 (if any) will be + left untouched in the `onion_private_key` file in the data directory (see + `-datadir`) and can be removed if not needed. Bitcoin Core will no longer + attempt to read it. The private key for the Tor v3 service will be saved in a + file named `onion_v3_private_key`. To use the deprecated Tor v2 service (not + recommended), the `onion_private_key` can be copied over + `onion_v3_private_key`, e.g. + `cp -f onion_private_key onion_v3_private_key`. (#19954) + +- The client writes a file (`anchors.dat`) at shutdown with the network addresses + of the node’s two outbound block-relay-only peers (so called "anchors"). The + next time the node starts, it reads this file and attempts to reconnect to those + same two peers. This prevents an attacker from using node restarts to trigger a + complete change in peers, which would be something they could use as part of an + eclipse attack. (#17428) + +- This release adds support for serving + [BIP157](https://github.com/bitcoin/bips/blob/master/bip-0157.mediawiki) compact + filters to peers on the network when enabled using + `-blockfilterindex=1 -peercfilters=1`. (#16442) + +- This release adds support for signets + ([BIP325](https://github.com/bitcoin/bips/blob/master/bip-0325.mediawiki)) in + addition to the existing mainnet, testnet, and regtest networks. Signets are + centrally-controlled test networks, allowing them to be more predictable + test environments than the older testnet. One public signet is maintained, and + selectable using `-signet`. It is also possible to create personal signets. + (#18267). + +- This release implements + [BIP339](https://github.com/bitcoin/bips/blob/master/bip-0339.mediawiki) + wtxid relay. When negotiated, transactions are announced using their wtxid + instead of their txid. (#18044). + +- This release implements the proposed Taproot consensus rules + ([BIP341](https://github.com/bitcoin/bips/blob/master/bip-0341.mediawiki) and + [BIP342](https://github.com/bitcoin/bips/blob/master/bip-0342.mediawiki)), + without activation on mainnet. Experimentation with Taproot can be done on + signet, where its rules are already active. (#19553) + +Updated RPCs +------------ + +- The `getpeerinfo` RPC has a new `network` field that provides the type of + network ("ipv4", "ipv6", or "onion") that the peer connected through. (#20002) + +- The `getpeerinfo` RPC now has additional `last_block` and `last_transaction` + fields that return the UNIX epoch time of the last block and the last *valid* + transaction received from each peer. (#19731) + +- `getnetworkinfo` now returns two new fields, `connections_in` and + `connections_out`, that provide the number of inbound and outbound peer + connections. These new fields are in addition to the existing `connections` + field, which returns the total number of peer connections. (#19405) + +- Exposed transaction version numbers are now treated as unsigned 32-bit + integers instead of signed 32-bit integers. This matches their treatment in + consensus logic. Versions greater than 2 continue to be non-standard + (matching previous behavior of smaller than 1 or greater than 2 being + non-standard). Note that this includes the `joinpsbt` command, which combines + partially-signed transactions by selecting the highest version number. + (#16525) + +- `getmempoolinfo` now returns an additional `unbroadcastcount` field. The + mempool tracks locally submitted transactions until their initial broadcast + is acknowledged by a peer. This field returns the count of transactions + waiting for acknowledgement. + +- Mempool RPCs such as `getmempoolentry` and `getrawmempool` with + `verbose=true` now return an additional `unbroadcast` field. This indicates + whether initial broadcast of the transaction has been acknowledged by a + peer. `getmempoolancestors` and `getmempooldescendants` are also updated. + +- The `getpeerinfo` RPC no longer returns the `banscore` field unless the configuration + option `-deprecatedrpc=banscore` is used. The `banscore` field will be fully + removed in the next major release. (#19469) + +- The `testmempoolaccept` RPC returns `vsize` and a `fees` object with the `base` fee + if the transaction would pass validation. (#19940) + +- The `getpeerinfo` RPC now returns a `connection_type` field. This indicates + the type of connection established with the peer. It will return one of six + options. For more information, see the `getpeerinfo` help documentation. + (#19725) + +- The `getpeerinfo` RPC no longer returns the `addnode` field by default. This + field will be fully removed in the next major release. It can be accessed + with the configuration option `-deprecatedrpc=getpeerinfo_addnode`. However, + it is recommended to instead use the `connection_type` field (it will return + `manual` when addnode is true). (#19725) + +- The `getpeerinfo` RPC no longer returns the `whitelisted` field by default. + This field will be fully removed in the next major release. It can be accessed + with the configuration option `-deprecatedrpc=getpeerinfo_whitelisted`. However, + it is recommended to instead use the `permissions` field to understand if specific + privileges have been granted to the peer. (#19770) + +- The `walletcreatefundedpsbt` RPC call will now fail with + `Insufficient funds` when inputs are manually selected but are not enough to cover + the outputs and fee. Additional inputs can automatically be added through the + new `add_inputs` option. (#16377) + +- The `fundrawtransaction` RPC now supports `add_inputs` option that when `false` + prevents adding more inputs if necessary and consequently the RPC fails. + +Changes to Wallet or GUI related RPCs can be found in the GUI or Wallet section below. + +New RPCs +-------- + +- The `getindexinfo` RPC returns the actively running indices of the node, + including their current sync status and height. It also accepts an `index_name` + to specify returning the status of that index only. (#19550) + +Build System +------------ + +Updated settings +---------------- + +- The same ZeroMQ notification (e.g. `-zmqpubhashtx=address`) can now be + specified multiple times to publish the same notification to different ZeroMQ + sockets. (#18309) + +- The `-banscore` configuration option, which modified the default threshold for + disconnecting and discouraging misbehaving peers, has been removed as part of + changes in 0.20.1 and in this release to the handling of misbehaving peers. + Refer to "Changes regarding misbehaving peers" in the 0.20.1 release notes for + details. (#19464) + +- The `-debug=db` logging category, which was deprecated in 0.20 and replaced by + `-debug=walletdb` to distinguish it from `coindb`, has been removed. (#19202) + +- A `download` permission has been extracted from the `noban` permission. For + compatibility, `noban` implies the `download` permission, but this may change + in future releases. Refer to the help of the affected settings `-whitebind` + and `-whitelist` for more details. (#19191) + +- Netmasks that contain 1-bits after 0-bits (the 1-bits are not contiguous on + the left side, e.g. 255.0.255.255) are no longer accepted. They are invalid + according to RFC 4632. Netmasks are used in the `-rpcallowip` and `-whitelist` + configuration options and in the `setban` RPC. (#19628) + +- The `-blocksonly` setting now completely disables fee estimation. (#18766) + +Changes to Wallet or GUI related settings can be found in the GUI or Wallet section below. + +Tools and Utilities +------------------- + +- A new `bitcoin-cli -netinfo` command provides a network peer connections + dashboard that displays data from the `getpeerinfo` and `getnetworkinfo` RPCs + in a human-readable format. An optional integer argument from `0` to `4` may + be passed to see increasing levels of detail. (#19643) + +- A new `bitcoin-cli -generate` command, equivalent to RPC `generatenewaddress` + followed by `generatetoaddress`, can generate blocks for command line testing + purposes. This is a client-side version of the former `generate` RPC. See the + help for details. (#19133) + +- The `bitcoin-cli -getinfo` command now displays the wallet name and balance for + each of the loaded wallets when more than one is loaded (e.g. in multiwallet + mode) and a wallet is not specified with `-rpcwallet`. (#18594) + +- The `connections` field of `bitcoin-cli -getinfo` is now expanded to return a JSON + object with `in`, `out` and `total` numbers of peer connections. It previously + returned a single integer value for the total number of peer connections. (#19405) + +New settings +------------ + +- The `startupnotify` option is used to specify a command to + execute when Bitcoin Core has finished with its startup + sequence. (#15367) + +Wallet +------ + +- Backwards compatibility has been dropped for two `getaddressinfo` RPC + deprecations, as notified in the 0.20 release notes. The deprecated `label` + field has been removed as well as the deprecated `labels` behavior of + returning a JSON object containing `name` and `purpose` key-value pairs. Since + 0.20, the `labels` field returns a JSON array of label names. (#19200) + +- To improve wallet privacy, the frequency of wallet rebroadcast attempts is + reduced from approximately once every 15 minutes to once every 12-36 hours. + To maintain a similar level of guarantee for initial broadcast of wallet + transactions, the mempool tracks these transactions as a part of the newly + introduced unbroadcast set. See the "P2P and network changes" section for + more information on the unbroadcast set. (#18038) + +- The `sendtoaddress` and `sendmany` RPCs accept an optional `verbose=True` + argument to also return the fee reason about the sent tx. (#19501) + +- The wallet can create a transaction without change even when the keypool is + empty. Previously it failed. (#17219) + +- The `-salvagewallet` startup option has been removed. A new `salvage` command + has been added to the `bitcoin-wallet` tool which performs the salvage + operations that `-salvagewallet` did. (#18918) + +- A new configuration flag `-maxapsfee` has been added, which sets the max + allowed avoid partial spends (APS) fee. It defaults to 0 (i.e. fee is the + same with and without APS). Setting it to -1 will disable APS, unless + `-avoidpartialspends` is set. (#14582) + +- The wallet will now avoid partial spends (APS) by default, if this does not + result in a difference in fees compared to the non-APS variant. The allowed + fee threshold can be adjusted using the new `-maxapsfee` configuration + option. (#14582) + +- The `createwallet`, `loadwallet`, and `unloadwallet` RPCs now accept + `load_on_startup` options to modify the settings list. Unless these options + are explicitly set to true or false, the list is not modified, so the RPC + methods remain backwards compatible. (#15937) + +- A new `send` RPC with similar syntax to `walletcreatefundedpsbt`, including + support for coin selection and a custom fee rate, is added. The `send` RPC is + experimental and may change in subsequent releases. (#16378) + +- The `estimate_mode` parameter is now case-insensitive in the `bumpfee`, + `fundrawtransaction`, `sendmany`, `sendtoaddress`, `send` and + `walletcreatefundedpsbt` RPCs. (#11413) + +- The `bumpfee` RPC now uses `conf_target` rather than `confTarget` in the + options. (#11413) + +- `fundrawtransaction` and `walletcreatefundedpsbt` when used with the + `lockUnspents` argument now lock manually selected coins, in addition to + automatically selected coins. Note that locked coins are never used in + automatic coin selection, but can still be manually selected. (#18244) + +- The `-zapwallettxes` startup option has been removed and its functionality + removed from the wallet. This option was originally intended to allow for + rescuing wallets which were affected by a malleability attack. More recently, + it has been used in the fee bumping of transactions that did not signal RBF. + This functionality has been superseded with the abandon transaction feature. (#19671) + +- The error code when no wallet is loaded, but a wallet RPC is called, has been + changed from `-32601` (method not found) to `-18` (wallet not found). + (#20101) + +### Automatic wallet creation removed + +Bitcoin Core will no longer automatically create new wallets on startup. It will +load existing wallets specified by `-wallet` options on the command line or in +`bitcoin.conf` or `settings.json` files. And by default it will also load a +top-level unnamed ("") wallet. However, if specified wallets don't exist, +Bitcoin Core will now just log warnings instead of creating new wallets with +new keys and addresses like previous releases did. + +New wallets can be created through the GUI (which has a more prominent create +wallet option), through the `bitcoin-cli createwallet` or `bitcoin-wallet +create` commands, or the `createwallet` RPC. (#15454, #20186) + +### Experimental Descriptor Wallets + +Please note that Descriptor Wallets are still experimental and not all expected functionality +is available. Additionally there may be some bugs and current functions may change in the future. +Bugs and missing functionality can be reported to the [issue tracker](https://github.com/bitcoin/bitcoin/issues). + +0.21 introduces a new type of wallet - Descriptor Wallets. Descriptor Wallets store +scriptPubKey information using output descriptors. This is in contrast to the Legacy Wallet +structure where keys are used to implicitly generate scriptPubKeys and addresses. Because of this +shift to being script based instead of key based, many of the confusing things that Legacy +Wallets do are not possible with Descriptor Wallets. Descriptor Wallets use a definition +of "mine" for scripts which is simpler and more intuitive than that used by Legacy Wallets. +Descriptor Wallets also uses different semantics for watch-only things and imports. + +As Descriptor Wallets are a new type of wallet, their introduction does not affect existing wallets. +Users who already have a Bitcoin Core wallet can continue to use it as they did before without +any change in behavior. Newly created Legacy Wallets (which remains the default type of wallet) will +behave as they did in previous versions of Bitcoin Core. + +The differences between Descriptor Wallets and Legacy Wallets are largely limited to non user facing +things. They are intended to behave similarly except for the import/export and watchonly functionality +as described below. + +#### Creating Descriptor Wallets + +Descriptor wallets are not the default type of wallet. + +In the GUI, a checkbox has been added to the Create Wallet Dialog to indicate that a +Descriptor Wallet should be created. And a `descriptors` option has been added to `createwallet` RPC. +Setting `descriptors` to `true` will create a Descriptor Wallet instead of a Legacy Wallet. + +Without those options being set, a Legacy Wallet will be created instead. + +#### `IsMine` Semantics + +`IsMine` refers to the function used to determine whether a script belongs to the wallet. +This is used to determine whether an output belongs to the wallet. `IsMine` in Legacy Wallets +returns true if the wallet would be able to sign an input that spends an output with that script. +Since keys can be involved in a variety of different scripts, this definition for `IsMine` can +lead to many unexpected scripts being considered part of the wallet. + +With Descriptor Wallets, descriptors explicitly specify the set of scripts that are owned by +the wallet. Since descriptors are deterministic and easily enumerable, users will know exactly +what scripts the wallet will consider to belong to it. Additionally the implementation of `IsMine` +in Descriptor Wallets is far simpler than for Legacy Wallets. Notably, in Legacy Wallets, `IsMine` +allowed for users to take one type of address (e.g. P2PKH), mutate it into another address type +(e.g. P2WPKH), and the wallet would still detect outputs sending to the new address type +even without that address being requested from the wallet. Descriptor Wallets do not +allow for this and will only watch for the addresses that were explicitly requested from the wallet. + +These changes to `IsMine` will make it easier to reason about what scripts the wallet will +actually be watching for in outputs. However for the vast majority of users, this change is +largely transparent and will not have noticeable effect. + +#### Imports and Exports + +In Legacy Wallets, raw scripts and keys could be imported to the wallet. Those imported scripts +and keys are treated separately from the keys generated by the wallet. This complicates the `IsMine` +logic as it has to distinguish between spendable and watchonly. + +Descriptor Wallets handle importing scripts and keys differently. Only complete descriptors can be +imported. These descriptors are then added to the wallet as if it were a descriptor generated by +the wallet itself. This simplifies the `IsMine` logic so that it no longer has to distinguish +between spendable and watchonly. As such, the watchonly model for Descriptor Wallets is also +different and described in more detail in the next section. + +To import into a Descriptor Wallet, a new `importdescriptors` RPC has been added that uses a syntax +similar to that of `importmulti`. + +As Legacy Wallets and Descriptor Wallets use different mechanisms for storing and importing scripts and keys +the existing import RPCs have been disabled for descriptor wallets. +New export RPCs for Descriptor Wallets have not yet been added. + +The following RPCs are disabled for Descriptor Wallets: + +* `importprivkey` +* `importpubkey` +* `importaddress` +* `importwallet` +* `dumpprivkey` +* `dumpwallet` +* `importmulti` +* `addmultisigaddress` +* `sethdseed` + +#### Watchonly Wallets + +A Legacy Wallet contains both private keys and scripts that were being watched. +Those watched scripts would not contribute to your normal balance. In order to see the watchonly +balance and to use watchonly things in transactions, an `include_watchonly` option was added +to many RPCs that would allow users to do that. However it is easy to forget to include this option. + +Descriptor Wallets move to a per-wallet watchonly model. Instead an entire wallet is considered to be +watchonly depending on whether it was created with private keys disabled. This eliminates the need +to distinguish between things that are watchonly and things that are not within a wallet itself. + +This change does have a caveat. If a Descriptor Wallet with private keys *enabled* has +a multiple key descriptor without all of the private keys (e.g. `multi(...)` with only one private key), +then the wallet will fail to sign and broadcast transactions. Such wallets would need to use the PSBT +workflow but the typical GUI Send, `sendtoaddress`, etc. workflows would still be available, just +non-functional. + +This issue is worsened if the wallet contains both single key (e.g. `wpkh(...)`) descriptors and such +multiple key descriptors as some transactions could be signed and broadcast and others not. This is +due to some transactions containing only single key inputs, while others would contain both single +key and multiple key inputs, depending on which are available and how the coin selection algorithm +selects inputs. However this is not considered to be a supported use case; multisigs +should be in their own wallets which do not already have descriptors. Although users cannot export +descriptors with private keys for now as explained earlier. + +#### BIP 44/49/84 Support + +The change to using descriptors changes the default derivation paths used by Bitcoin Core +to adhere to BIP 44/49/84. Descriptors with different derivation paths can be imported without +issue. + +#### SQLite Database Backend + +Descriptor wallets use SQLite for the wallet file instead of the Berkeley DB used in legacy wallets. +This will break compatibility with any existing tooling that operates on wallets, however compatibility +was already being broken by the move to descriptors. + +### Wallet RPC changes + +- The `upgradewallet` RPC replaces the `-upgradewallet` command line option. + (#15761) + +- The `settxfee` RPC will fail if the fee was set higher than the `-maxtxfee` + command line setting. The wallet will already fail to create transactions + with fees higher than `-maxtxfee`. (#18467) + +- A new `fee_rate` parameter/option denominated in satoshis per vbyte (sat/vB) + is introduced to the `sendtoaddress`, `sendmany`, `fundrawtransaction` and + `walletcreatefundedpsbt` RPCs as well as to the experimental new `send` + RPC. The legacy `feeRate` option in `fundrawtransaction` and + `walletcreatefundedpsbt` still exists for setting a fee rate in BTC per 1,000 + vbytes (BTC/kvB), but it is expected to be deprecated soon to avoid + confusion. For these RPCs, the fee rate error message is updated from BTC/kB + to sat/vB and the help documentation in BTC/kB is updated to BTC/kvB. The + `send` and `sendtoaddress` RPC examples are updated to aid users in creating + transactions with explicit fee rates. (#20305, #11413) + +- The `bumpfee` RPC `fee_rate` option is changed from BTC/kvB to sat/vB and the + help documentation is updated. Users are warned that this is a breaking API + change, but it should be relatively benign: the large (100,000 times) + difference between BTC/kvB and sat/vB units means that a transaction with a + fee rate mistakenly calculated in BTC/kvB rather than sat/vB should raise an + error due to the fee rate being set too low. In the worst case, the + transaction may send at 1 sat/vB, but as Replace-by-Fee (BIP125 RBF) is active + by default when an explicit fee rate is used, the transaction fee can be + bumped. (#20305) + +GUI changes +----------- + +- Wallets created or loaded in the GUI will now be automatically loaded on + startup, so they don't need to be manually reloaded next time Bitcoin Core is + started. The list of wallets to load on startup is stored in + `\<datadir\>/settings.json` and augments any command line or `bitcoin.conf` + `-wallet=` settings that specify more wallets to load. Wallets that are + unloaded in the GUI get removed from the settings list so they won't load + again automatically next startup. (#19754) + +- The GUI Peers window no longer displays a "Ban Score" field. This is part of + changes in 0.20.1 and in this release to the handling of misbehaving + peers. Refer to "Changes regarding misbehaving peers" in the 0.20.1 release + notes for details. (#19512) + +Low-level changes +================= + +RPC +--- + +- To make RPC `sendtoaddress` more consistent with `sendmany` the following error + `sendtoaddress` codes were changed from `-4` to `-6`: + - Insufficient funds + - Fee estimation failed + - Transaction has too long of a mempool chain + +- The `sendrawtransaction` error code for exceeding `maxfeerate` has been changed from + `-26` to `-25`. The error string has been changed from "absurdly-high-fee" to + "Fee exceeds maximum configured by user (e.g. -maxtxfee, maxfeerate)." The + `testmempoolaccept` RPC returns `max-fee-exceeded` rather than `absurdly-high-fee` + as the `reject-reason`. (#19339) + +- To make wallet and rawtransaction RPCs more consistent, the error message for + exceeding maximum feerate has been changed to "Fee exceeds maximum configured by user + (e.g. -maxtxfee, maxfeerate)." (#19339) + +Tests +----- + +- The BIP 325 default signet can be enabled by the `-chain=signet` or `-signet` + setting. The settings `-signetchallenge` and `-signetseednode` allow + enabling a custom signet. + +- The `generateblock` RPC allows testers using regtest mode to + generate blocks that consist of a custom set of transactions. (#17693) + +0.21.0 change log +================= + +### Consensus +- #18267 BIP-325: Signet (kallewoof) +- #20016 uint256: 1 is a constant (ajtowns) +- #20006 Fix misleading error message: Clean stack rule (sanket1729) +- #19953 Implement BIP 340-342 validation (Schnorr/taproot/tapscript) (sipa) +- #20169 Taproot follow-up: Make ComputeEntrySchnorr and ComputeEntryECDSA const to clarify contract (practicalswift) + +### Policy +- #18766 Disable fee estimation in blocksonly mode (darosior) +- #19630 Cleanup fee estimation code (darosior) +- #20165 Only relay Taproot spends if next block has it active (sipa) + +### Mining +- #17946 Fix GBT: Restore "!segwit" and "csv" to "rules" key (luke-jr) + +### Privacy +- #16432 Add privacy to the Overview page (hebasto) +- #18861 Do not answer GETDATA for to-be-announced tx (sipa) +- #18038 Mempool tracks locally submitted transactions to improve wallet privacy (amitiuttarwar) +- #19109 Only allow getdata of recently announced invs (sipa) + +### Block and transaction handling +- #17737 Add ChainstateManager, remove BlockManager global (jamesob) +- #18960 indexes: Add compact block filter headers cache (jnewbery) +- #13204 Faster sigcache nonce (JeremyRubin) +- #19088 Use std::chrono throughout some validation functions (fanquake) +- #19142 Make VerifyDB level 4 interruptible (MarcoFalke) +- #17994 Flush undo files after last block write (kallewoof) +- #18990 log: Properly log txs rejected from mempool (MarcoFalke) +- #18984 Remove unnecessary input blockfile SetPos (dgenr8) +- #19526 log: Avoid treating remote misbehvior as local system error (MarcoFalke) +- #18044 Use wtxid for transaction relay (sdaftuar) +- #18637 coins: allow cache resize after init (jamesob) +- #19854 Avoid locking CTxMemPool::cs recursively in simple cases (hebasto) +- #19478 Remove CTxMempool::mapLinks data structure member (JeremyRubin) +- #19927 Reduce direct `g_chainman` usage (dongcarl) +- #19898 log: print unexpected version warning in validation log category (n-thumann) +- #20036 signet: Add assumed values for default signet (MarcoFalke) +- #20048 chainparams: do not log signet startup messages for other chains (jonatack) +- #19339 re-delegate absurd fee checking from mempool to clients (glozow) +- #20035 signet: Fix uninitialized read in validation (MarcoFalke) +- #20157 Bugfix: chainparams: Add missing (always enabled) Taproot deployment for Signet (luke-jr) +- #20263 Update assumed chain params (MarcoFalke) +- #20372 Avoid signed integer overflow when loading a mempool.dat file with a malformed time field (practicalswift) +- #18621 script: Disallow silent bool -> cscript conversion (MarcoFalke) +- #18612, #18732 script: Remove undocumented and unused operator+ (MarcoFalke) +- #19317 Add a left-justified width field to `log2_work` component for a uniform debug.log output (jamesgmorgan) + +### P2P protocol and network code +- #18544 Limit BIP37 filter lifespan (active between `filterload`..`filterclear`) (theStack) +- #18806 Remove is{Empty,Full} flags from CBloomFilter, clarify CVE fix (theStack) +- #18512 Improve asmap checks and add sanity check (sipa) +- #18877 Serve cfcheckpt requests (jnewbery) +- #18895 Unbroadcast followups: rpcs, nLastResend, mempool sanity check (gzhao408) +- #19010 net processing: Add support for `getcfheaders` (jnewbery) +- #16939 Delay querying DNS seeds (ajtowns) +- #18807 Unbroadcast follow-ups (amitiuttarwar) +- #19044 Add support for getcfilters (jnewbery) +- #19084 improve code documentation for dns seed behaviour (ajtowns) +- #19260 disconnect peers that send filterclear + update existing filter msg disconnect logic (gzhao408) +- #19284 Add seed.bitcoin.wiz.biz to DNS seeds (wiz) +- #19322 split PushInventory() (jnewbery) +- #19204 Reduce inv traffic during IBD (MarcoFalke) +- #19470 banlist: log post-swept banlist size at startup (fanquake) +- #19191 Extract download permission from noban (MarcoFalke) +- #14033 Drop `CADDR_TIME_VERSION` checks now that `MIN_PEER_PROTO_VERSION` is greater (Empact) +- #19464 net, rpc: remove -banscore option, deprecate banscore in getpeerinfo (jonatack) +- #19514 [net/net processing] check banman pointer before dereferencing (jnewbery) +- #19512 banscore updates to gui, tests, release notes (jonatack) +- #19360 improve encapsulation of CNetAddr (vasild) +- #19217 disambiguate block-relay-only variable names from blocksonly variables (glowang) +- #19473 Add -networkactive option (hebasto) +- #19472 [net processing] Reduce `cs_main` scope in MaybeDiscourageAndDisconnect() (jnewbery) +- #19583 clean up Misbehaving() (jnewbery) +- #19534 save the network type explicitly in CNetAddr (vasild) +- #19569 Enable fetching of orphan parents from wtxid peers (sipa) +- #18991 Cache responses to GETADDR to prevent topology leaks (naumenkogs) +- #19596 Deduplicate parent txid loop of requested transactions and missing parents of orphan transactions (sdaftuar) +- #19316 Cleanup logic around connection types (amitiuttarwar) +- #19070 Signal support for compact block filters with `NODE_COMPACT_FILTERS` (jnewbery) +- #19705 Shrink CAddress from 48 to 40 bytes on x64 (vasild) +- #19704 Move ProcessMessage() to PeerLogicValidation (jnewbery) +- #19628 Change CNetAddr::ip to have flexible size (vasild) +- #19797 Remove old check for 3-byte shifted IP addresses from pre-0.2.9 nodes (#19797) +- #19607 Add Peer struct for per-peer data in net processing (jnewbery) +- #19857 improve nLastBlockTime and nLastTXTime documentation (jonatack) +- #19724 Cleanup connection types- followups (amitiuttarwar) +- #19670 Protect localhost and block-relay-only peers from eviction (sdaftuar) +- #19728 Increase the ip address relay branching factor for unreachable networks (sipa) +- #19879 Miscellaneous wtxid followups (amitiuttarwar) +- #19697 Improvements on ADDR caching (naumenkogs) +- #17785 Unify Send and Receive protocol versions (hebasto) +- #19845 CNetAddr: add support to (un)serialize as ADDRv2 (vasild) +- #19107 Move all header verification into the network layer, extend logging (troygiorshev) +- #20003 Exit with error message if -proxy is specified without arguments (instead of continuing without proxy server) (practicalswift) +- #19991 Use alternative port for incoming Tor connections (hebasto) +- #19723 Ignore unknown messages before VERACK (sdaftuar) +- #19954 Complete the BIP155 implementation and upgrade to TORv3 (vasild) +- #20119 BIP155 follow-ups (sipa) +- #19988 Overhaul transaction request logic (sipa) +- #17428 Try to preserve outbound block-relay-only connections during restart (hebasto) +- #19911 Guard `vRecvGetData` with `cs_vRecv` and `orphan_work_set` with `g_cs_orphans` (narula) +- #19753 Don't add AlreadyHave transactions to recentRejects (troygiorshev) +- #20187 Test-before-evict bugfix and improvements for block-relay-only peers (sdaftuar) +- #20237 Hardcoded seeds update for 0.21 (laanwj) +- #20212 Fix output of peer address in version message (vasild) +- #20284 Ensure old versions don't parse peers.dat (vasild) +- #20405 Avoid calculating onion address checksum when version is not 3 (lontivero) +- #20564 Don't send 'sendaddrv2' to pre-70016 software, and send before 'verack' (sipa) +- #20660 Move signet onion seed from v2 to v3 (Sjors) + +### Wallet +- #18262 Exit selection when `best_waste` is 0 (achow101) +- #17824 Prefer full destination groups in coin selection (fjahr) +- #17219 Allow transaction without change if keypool is empty (Sjors) +- #15761 Replace -upgradewallet startup option with upgradewallet RPC (achow101) +- #18671 Add BlockUntilSyncedToCurrentChain to dumpwallet (MarcoFalke) +- #16528 Native Descriptor Wallets using DescriptorScriptPubKeyMan (achow101) +- #18777 Recommend absolute path for dumpwallet (MarcoFalke) +- #16426 Reverse `cs_main`, `cs_wallet` lock order and reduce `cs_main` locking (ariard) +- #18699 Avoid translating RPC errors (MarcoFalke) +- #18782 Make sure no DescriptorScriptPubKeyMan or WalletDescriptor members are left uninitialized after construction (practicalswift) +- #9381 Remove CWalletTx merging logic from AddToWallet (ryanofsky) +- #16946 Include a checksum of encrypted private keys (achow101) +- #17681 Keep inactive seeds after sethdseed and derive keys from them as needed (achow101) +- #18918 Move salvagewallet into wallettool (achow101) +- #14988 Fix for confirmed column in csv export for payment to self transactions (benthecarman) +- #18275 Error if an explicit fee rate was given but the needed fee rate differed (kallewoof) +- #19054 Skip hdKeypath of 'm' when determining inactive hd seeds (achow101) +- #17938 Disallow automatic conversion between disparate hash types (Empact) +- #19237 Check size after unserializing a pubkey (elichai) +- #11413 sendtoaddress/sendmany: Add explicit feerate option (kallewoof) +- #18850 Fix ZapSelectTx to sync wallet spends (bvbfan) +- #18923 Never schedule MaybeCompactWalletDB when `-flushwallet` is off (MarcoFalke) +- #19441 walletdb: Don't reinitialize desc cache with multiple cache entries (achow101) +- #18907 walletdb: Don't remove database transaction logs and instead error (achow101) +- #19334 Introduce WalletDatabase abstract class (achow101) +- #19335 Cleanup and separate BerkeleyDatabase and BerkeleyBatch (achow101) +- #19102 Introduce and use DummyDatabase instead of dummy BerkeleyDatabase (achow101) +- #19568 Wallet should not override signing errors (fjahr) +- #17204 Do not turn `OP_1NEGATE` in scriptSig into `0x0181` in signing code (sipa) (meshcollider) +- #19457 Cleanup wallettool salvage and walletdb extraneous declarations (achow101) +- #15937 Add loadwallet and createwallet `load_on_startup` options (ryanofsky) +- #16841 Replace GetScriptForWitness with GetScriptForDestination (meshcollider) +- #14582 always do avoid partial spends if fees are within a specified range (kallewoof) +- #19743 -maxapsfee follow-up (kallewoof) +- #19289 GetWalletTx and IsMine require `cs_wallet` lock (promag) +- #19671 Remove -zapwallettxes (achow101) +- #19805 Avoid deserializing unused records when salvaging (achow101) +- #19754 wallet, gui: Reload previously loaded wallets on startup (achow101) +- #19738 Avoid multiple BerkeleyBatch in DelAddressBook (promag) +- #19919 bugfix: make LoadWallet assigns status always (AkioNak) +- #16378 The ultimate send RPC (Sjors) +- #15454 Remove the automatic creation and loading of the default wallet (achow101) +- #19501 `send*` RPCs in the wallet returns the "fee reason" (stackman27) +- #20130 Remove db mode string (S3RK) +- #19077 Add sqlite as an alternative wallet database and use it for new descriptor wallets (achow101) +- #20125 Expose database format in getwalletinfo (promag) +- #20198 Show name, format and if uses descriptors in bitcoin-wallet tool (jonasschnelli) +- #20216 Fix buffer over-read in SQLite file magic check (theStack) +- #20186 Make -wallet setting not create wallets (ryanofsky) +- #20230 Fix bug when just created encrypted wallet cannot get address (hebasto) +- #20282 Change `upgradewallet` return type to be an object (jnewbery) +- #20220 Explicit fee rate follow-ups/fixes for 0.21 (jonatack) +- #20199 Ignore (but warn) on duplicate -wallet parameters (jonasschnelli) +- #20324 Set DatabaseStatus::SUCCESS in MakeSQLiteDatabase (MarcoFalke) +- #20266 Fix change detection of imported internal descriptors (achow101) +- #20153 Do not import a descriptor with hardened derivations into a watch-only wallet (S3RK) +- #20344 Fix scanning progress calculation for single block range (theStack) +- #19502 Bugfix: Wallet: Soft-fail exceptions within ListWalletDir file checks (luke-jr) +- #20378 Fix potential division by 0 in WalletLogPrintf (jonasschnelli) +- #18836 Upgradewallet fixes and additional tests (achow101) +- #20139 Do not return warnings from UpgradeWallet() (stackman27) +- #20305 Introduce `fee_rate` sat/vB param/option (jonatack) +- #20426 Allow zero-fee fundrawtransaction/walletcreatefundedpsbt and other fixes (jonatack) +- #20573 wallet, bugfix: allow send with string `fee_rate` amounts (jonatack) + +### RPC and other APIs +- #18574 cli: Call getbalances.ismine.trusted instead of getwalletinfo.balance (jonatack) +- #17693 Add `generateblock` to mine a custom set of transactions (andrewtoth) +- #18495 Remove deprecated migration code (vasild) +- #18493 Remove deprecated "size" from mempool txs (vasild) +- #18467 Improve documentation and return value of settxfee (fjahr) +- #18607 Fix named arguments in documentation (MarcoFalke) +- #17831 doc: Fix and extend getblockstats examples (asoltys) +- #18785 Prevent valgrind false positive in `rest_blockhash_by_height` (ryanofsky) +- #18999 log: Remove "No rpcpassword set" from logs (MarcoFalke) +- #19006 Avoid crash when `g_thread_http` was never started (MarcoFalke) +- #18594 cli: Display multiwallet balances in -getinfo (jonatack) +- #19056 Make gettxoutsetinfo/GetUTXOStats interruptible (MarcoFalke) +- #19112 Remove special case for unknown service flags (MarcoFalke) +- #18826 Expose txinwitness for coinbase in JSON form from RPC (rvagg) +- #19282 Rephrase generatetoaddress help, and use `PACKAGE_NAME` (luke-jr) +- #16377 don't automatically append inputs in walletcreatefundedpsbt (Sjors) +- #19200 Remove deprecated getaddressinfo fields (jonatack) +- #19133 rpc, cli, test: add bitcoin-cli -generate command (jonatack) +- #19469 Deprecate banscore field in getpeerinfo (jonatack) +- #16525 Dump transaction version as an unsigned integer in RPC/TxToUniv (TheBlueMatt) +- #19555 Deduplicate WriteHDKeypath() used in decodepsbt (theStack) +- #19589 Avoid useless mempool query in gettxoutproof (MarcoFalke) +- #19585 RPCResult Type of MempoolEntryDescription should be OBJ (stylesuxx) +- #19634 Document getwalletinfo's `unlocked_until` field as optional (justinmoon) +- #19658 Allow RPC to fetch all addrman records and add records to addrman (jnewbery) +- #19696 Fix addnode remove command error (fjahr) +- #18654 Separate bumpfee's psbt creation function into psbtbumpfee (achow101) +- #19655 Catch listsinceblock `target_confirmations` exceeding block count (adaminsky) +- #19644 Document returned error fields as optional if applicable (theStack) +- #19455 rpc generate: print useful help and error message (jonatack) +- #19550 Add listindices RPC (fjahr) +- #19169 Validate provided keys for `query_options` parameter in listunspent (PastaPastaPasta) +- #18244 fundrawtransaction and walletcreatefundedpsbt also lock manually selected coins (Sjors) +- #14687 zmq: Enable TCP keepalive (mruddy) +- #19405 Add network in/out connections to `getnetworkinfo` and `-getinfo` (jonatack) +- #19878 rawtransaction: Fix argument in combinerawtransaction help message (pinheadmz) +- #19940 Return fee and vsize from testmempoolaccept (gzhao408) +- #13686 zmq: Small cleanups in the ZMQ code (domob1812) +- #19386, #19528, #19717, #19849, #19994 Assert that RPCArg names are equal to CRPCCommand ones (MarcoFalke) +- #19725 Add connection type to getpeerinfo, improve logs (amitiuttarwar) +- #19969 Send RPC bug fix and touch-ups (Sjors) +- #18309 zmq: Add support to listen on multiple interfaces (n-thumann) +- #20055 Set HTTP Content-Type in bitcoin-cli (laanwj) +- #19956 Improve invalid vout value rpc error message (n1rna) +- #20101 Change no wallet loaded message to be clearer (achow101) +- #19998 Add `via_tor` to `getpeerinfo` output (hebasto) +- #19770 getpeerinfo: Deprecate "whitelisted" field (replaced by "permissions") (luke-jr) +- #20120 net, rpc, test, bugfix: update GetNetworkName, GetNetworksInfo, regression tests (jonatack) +- #20595 Improve heuristic hex transaction decoding (sipa) +- #20731 Add missing description of vout in getrawtransaction help text (benthecarman) +- #19328 Add gettxoutsetinfo `hash_type` option (fjahr) +- #19731 Expose nLastBlockTime/nLastTXTime as last `block/last_transaction` in getpeerinfo (jonatack) +- #19572 zmq: Create "sequence" notifier, enabling client-side mempool tracking (instagibbs) +- #20002 Expose peer network in getpeerinfo; simplify/improve -netinfo (jonatack) + +### GUI +- #17905 Avoid redundant tx status updates (ryanofsky) +- #18646 Use `PACKAGE_NAME` in exception message (fanquake) +- #17509 Save and load PSBT (Sjors) +- #18769 Remove bug fix for Qt < 5.5 (10xcryptodev) +- #15768 Add close window shortcut (IPGlider) +- #16224 Bilingual GUI error messages (hebasto) +- #18922 Do not translate InitWarning messages in debug.log (hebasto) +- #18152 Use NotificationStatus enum for signals to GUI (hebasto) +- #18587 Avoid wallet tryGetBalances calls in WalletModel::pollBalanceChanged (ryanofsky) +- #17597 Fix height of QR-less ReceiveRequestDialog (hebasto) +- #17918 Hide non PKHash-Addresses in signing address book (emilengler) +- #17956 Disable unavailable context menu items in transactions tab (kristapsk) +- #17968 Ensure that ModalOverlay is resized properly (hebasto) +- #17993 Balance/TxStatus polling update based on last block hash (furszy) +- #18424 Use parent-child relation to manage lifetime of OptionsModel object (hebasto) +- #18452 Fix shutdown when `waitfor*` cmds are called from RPC console (hebasto) +- #15202 Add Close All Wallets action (promag) +- #19132 lock `cs_main`, `m_cached_tip_mutex` in that order (vasild) +- #18898 Display warnings as rich text (hebasto) +- #19231 add missing translation.h include to fix build (fanquake) +- #18027 "PSBT Operations" dialog (gwillen) +- #19256 Change combiner for signals to `optional_last_value` (fanquake) +- #18896 Reset toolbar after all wallets are closed (hebasto) +- #18993 increase console command max length (10xcryptodev) +- #19323 Fix regression in *txoutset* in GUI console (hebasto) +- #19210 Get rid of cursor in out-of-focus labels (hebasto) +- #19011 Reduce `cs_main` lock accumulation during GUI startup (jonasschnelli) +- #19844 Remove usage of boost::bind (fanquake) +- #20479 Fix QPainter non-determinism on macOS (0.21 backport) (laanwj) +- gui#6 Do not truncate node flag strings in debugwindow peers details tab (Saibato) +- gui#8 Fix regression in TransactionTableModel (hebasto) +- gui#17 doc: Remove outdated comment in TransactionTablePriv (MarcoFalke) +- gui#20 Wrap tooltips in the intro window (hebasto) +- gui#30 Disable the main window toolbar when the modal overlay is shown (hebasto) +- gui#34 Show permissions instead of whitelisted (laanwj) +- gui#35 Parse params directly instead of through node (ryanofsky) +- gui#39 Add visual accenting for the 'Create new receiving address' button (hebasto) +- gui#40 Clarify block height label (hebasto) +- gui#43 bugfix: Call setWalletActionsEnabled(true) only for the first wallet (hebasto) +- gui#97 Relax GUI freezes during IBD (jonasschnelli) +- gui#71 Fix visual quality of text in QR image (hebasto) +- gui#96 Slight improve create wallet dialog (Sjors) +- gui#102 Fix SplashScreen crash when run with -disablewallet (hebasto) +- gui#116 Fix unreasonable default size of the main window without loaded wallets (hebasto) +- gui#120 Fix multiwallet transaction notifications (promag) + +### Build system +- #18504 Drop bitcoin-tx and bitcoin-wallet dependencies on libevent (ryanofsky) +- #18586 Bump gitian descriptors to 0.21 (laanwj) +- #17595 guix: Enable building for `x86_64-w64-mingw32` target (dongcarl) +- #17929 add linker optimisation flags to gitian & guix (Linux) (fanquake) +- #18556 Drop make dist in gitian builds (hebasto) +- #18088 ensure we aren't using GNU extensions (fanquake) +- #18741 guix: Make source tarball using git-archive (dongcarl) +- #18843 warn on potentially uninitialized reads (vasild) +- #17874 make linker checks more robust (fanquake) +- #18535 remove -Qunused-arguments workaround for clang + ccache (fanquake) +- #18743 Add --sysroot option to mac os native compile flags (ryanofsky) +- #18216 test, build: Enable -Werror=sign-compare (Empact) +- #18928 don't pass -w when building for Windows (fanquake) +- #16710 Enable -Wsuggest-override if available (hebasto) +- #18738 Suppress -Wdeprecated-copy warnings (hebasto) +- #18862 Remove fdelt_chk back-compat code and sanity check (fanquake) +- #18887 enable -Werror=gnu (vasild) +- #18956 enforce minimum required Windows version (7) (fanquake) +- #18958 guix: Make V=1 more powerful for debugging (dongcarl) +- #18677 Multiprocess build support (ryanofsky) +- #19094 Only allow ASCII identifiers (laanwj) +- #18820 Propagate well-known vars into depends (dongcarl) +- #19173 turn on --enable-c++17 by --enable-fuzz (vasild) +- #18297 Use pkg-config in BITCOIN_QT_CONFIGURE for all hosts including Windows (hebasto) +- #19301 don't warn when doxygen isn't found (fanquake) +- #19240 macOS toolchain simplification and bump (dongcarl) +- #19356 Fix search for brew-installed BDB 4 on OS X (gwillen) +- #19394 Remove unused `RES_IMAGES` (Bushstar) +- #19403 improve `__builtin_clz*` detection (fanquake) +- #19375 target Windows 7 when building libevent and fix ipv6 usage (fanquake) +- #19331 Do not include server symbols in wallet (MarcoFalke) +- #19257 remove BIP70 configure option (fanquake) +- #18288 Add MemorySanitizer (MSan) in Travis to detect use of uninitialized memory (practicalswift) +- #18307 Require pkg-config for all of the hosts (hebasto) +- #19445 Update msvc build to use ISO standard C++17 (sipsorcery) +- #18882 fix -Wformat-security check when compiling with GCC (fanquake) +- #17919 Allow building with system clang (dongcarl) +- #19553 pass -fcommon when building genisoimage (fanquake) +- #19565 call `AC_PATH_TOOL` for dsymutil in macOS cross-compile (fanquake) +- #19530 build LTO support into Apple's ld64 (theuni) +- #19525 add -Wl,-z,separate-code to hardening flags (fanquake) +- #19667 set minimum required Boost to 1.58.0 (fanquake) +- #19672 make clean removes .gcda and .gcno files from fuzz directory (Crypt-iQ) +- #19622 Drop ancient hack in gitian-linux descriptor (hebasto) +- #19688 Add support for llvm-cov (hebasto) +- #19718 Add missed gcov files to 'make clean' (hebasto) +- #19719 Add Werror=range-loop-analysis (MarcoFalke) +- #19015 Enable some commonly enabled compiler diagnostics (practicalswift) +- #19689 build, qt: Add Qt version checking (hebasto) +- #17396 modest Android improvements (icota) +- #18405 Drop all of the ZeroMQ patches (hebasto) +- #15704 Move Win32 defines to configure.ac to ensure they are globally defined (luke-jr) +- #19761 improve sed robustness by not using sed (fanquake) +- #19758 Drop deprecated and unused `GUARDED_VAR` and `PT_GUARDED_VAR` annotations (hebasto) +- #18921 add stack-clash and control-flow protection options to hardening flags (fanquake) +- #19803 Bugfix: Define and use `HAVE_FDATASYNC` correctly outside LevelDB (luke-jr) +- #19685 CMake invocation cleanup (dongcarl) +- #19861 add /usr/local/ to `LCOV_FILTER_PATTERN` for macOS builds (Crypt-iQ) +- #19916 allow user to specify `DIR_FUZZ_SEED_CORPUS` for `cov_fuzz` (Crypt-iQ) +- #19944 Update secp256k1 subtree (including BIP340 support) (sipa) +- #19558 Split pthread flags out of ldflags and dont use when building libconsensus (fanquake) +- #19959 patch qt libpng to fix powerpc build (fanquake) +- #19868 Fix target name (hebasto) +- #19960 The vcpkg tool has introduced a proper way to use manifests (sipsorcery) +- #20065 fuzz: Configure check for main function (MarcoFalke) +- #18750 Optionally skip external warnings (vasild) +- #20147 Update libsecp256k1 (endomorphism, test improvements) (sipa) +- #20156 Make sqlite support optional (compile-time) (luke-jr) +- #20318 Ensure source tarball has leading directory name (MarcoFalke) +- #20447 Patch `qt_intersect_spans` to avoid non-deterministic behavior in LLVM 8 (achow101) +- #20505 Avoid secp256k1.h include from system (dergoegge) +- #20527 Do not ignore Homebrew's SQLite on macOS (hebasto) +- #20478 Don't set BDB flags when configuring without (jonasschnelli) +- #20563 Check that Homebrew's berkeley-db4 package is actually installed (hebasto) +- #19493 Fix clang build on Mac (bvbfan) + +### Tests and QA +- #18593 Complete impl. of `msg_merkleblock` and `wait_for_merkleblock` (theStack) +- #18609 Remove REJECT message code (hebasto) +- #18584 Check that the version message does not leak the local address (MarcoFalke) +- #18597 Extend `wallet_dump` test to cover comments (MarcoFalke) +- #18596 Try once more when RPC connection fails on Windows (MarcoFalke) +- #18451 shift coverage from getunconfirmedbalance to getbalances (jonatack) +- #18631 appveyor: Disable functional tests for now (MarcoFalke) +- #18628 Add various low-level p2p tests (MarcoFalke) +- #18615 Avoid accessing free'd memory in `validation_chainstatemanager_tests` (MarcoFalke) +- #18571 fuzz: Disable debug log file (MarcoFalke) +- #18653 add coverage for bitcoin-cli -rpcwait (jonatack) +- #18660 Verify findCommonAncestor always initializes outputs (ryanofsky) +- #17669 Have coins simulation test also use CCoinsViewDB (jamesob) +- #18662 Replace gArgs with local argsman in bench (MarcoFalke) +- #18641 Create cached blocks not in the future (MarcoFalke) +- #18682 fuzz: `http_request` workaround for libevent < 2.1.1 (theStack) +- #18692 Bump timeout in `wallet_import_rescan` (MarcoFalke) +- #18695 Replace boost::mutex with std::mutex (hebasto) +- #18633 Properly raise FailedToStartError when rpc shutdown before warmup finished (MarcoFalke) +- #18675 Don't initialize PrecomputedTransactionData in txvalidationcache tests (jnewbery) +- #18691 Add `wait_for_cookie_credentials()` to framework for rpcwait tests (jonatack) +- #18672 Add further BIP37 size limit checks to `p2p_filter.py` (theStack) +- #18721 Fix linter issue (hebasto) +- #18384 More specific `feature_segwit` test error messages and fixing incorrect comments (gzhao408) +- #18575 bench: Remove requirement that all benches use same testing setup (MarcoFalke) +- #18690 Check object hashes in `wait_for_getdata` (robot-visions) +- #18712 display command line options passed to `send_cli()` in debug log (jonatack) +- #18745 Check submitblock return values (MarcoFalke) +- #18756 Use `wait_for_getdata()` in `p2p_compactblocks.py` (theStack) +- #18724 Add coverage for -rpcwallet cli option (jonatack) +- #18754 bench: Add caddrman benchmarks (vasild) +- #18585 Use zero-argument super() shortcut (Python 3.0+) (theStack) +- #18688 fuzz: Run in parallel (MarcoFalke) +- #18770 Remove raw-tx byte juggling in `mempool_reorg` (MarcoFalke) +- #18805 Add missing `sync_all` to `wallet_importdescriptors.py` (achow101) +- #18759 bench: Start nodes with -nodebuglogfile (MarcoFalke) +- #18774 Added test for upgradewallet RPC (brakmic) +- #18485 Add `mempool_updatefromblock.py` (hebasto) +- #18727 Add CreateWalletFromFile test (ryanofsky) +- #18726 Check misbehavior more independently in `p2p_filter.py` (robot-visions) +- #18825 Fix message for `ECC_InitSanityCheck` test (fanquake) +- #18576 Use unittest for `test_framework` unit testing (gzhao408) +- #18828 Strip down previous releases boilerplate (MarcoFalke) +- #18617 Add factor option to adjust test timeouts (brakmic) +- #18855 `feature_backwards_compatibility.py` test downgrade after upgrade (achow101) +- #18864 Add v0.16.3 backwards compatibility test, bump v0.19.0.1 to v0.19.1 (Sjors) +- #18917 fuzz: Fix vector size problem in system fuzzer (brakmic) +- #18901 fuzz: use std::optional for `sep_pos_opt` variable (brakmic) +- #18888 Remove RPCOverloadWrapper boilerplate (MarcoFalke) +- #18952 Avoid os-dependent path (fametrano) +- #18938 Fill fuzzing coverage gaps for functions in consensus/validation.h, primitives/block.h and util/translation.h (practicalswift) +- #18986 Add capability to disable RPC timeout in functional tests (rajarshimaitra) +- #18530 Add test for -blocksonly and -whitelistforcerelay param interaction (glowang) +- #19014 Replace `TEST_PREVIOUS_RELEASES` env var with `test_framework` option (MarcoFalke) +- #19052 Don't limit fuzzing inputs to 1 MB for afl-fuzz (now: ∞ ∀ fuzzers) (practicalswift) +- #19060 Remove global `wait_until` from `p2p_getdata` (MarcoFalke) +- #18926 Pass ArgsManager into `getarg_tests` (glowang) +- #19110 Explain that a bug should be filed when the tests fail (MarcoFalke) +- #18965 Implement `base58_decode` (10xcryptodev) +- #16564 Always define the `raii_event_tests` test suite (candrews) +- #19122 Add missing `sync_blocks` to `wallet_hd` (MarcoFalke) +- #18875 fuzz: Stop nodes in `process_message*` fuzzers (MarcoFalke) +- #18974 Check that invalid witness destinations can not be imported (MarcoFalke) +- #18210 Type hints in Python tests (kiminuo) +- #19159 Make valgrind.supp work on aarch64 (MarcoFalke) +- #19082 Moved the CScriptNum asserts into the unit test in script.py (gillichu) +- #19172 Do not swallow flake8 exit code (hebasto) +- #19188 Avoid overwriting the NodeContext member of the testing setup [-Wshadow-field] (MarcoFalke) +- #18890 `disconnect_nodes` should warn if nodes were already disconnected (robot-visions) +- #19227 change blacklist to blocklist (TrentZ) +- #19230 Move base58 to own module to break circular dependency (sipa) +- #19083 `msg_mempool`, `fRelay`, and other bloomfilter tests (gzhao408) +- #16756 Connection eviction logic tests (mzumsande) +- #19177 Fix and clean `p2p_invalid_messages` functional tests (troygiorshev) +- #19264 Don't import asyncio to test magic bytes (jnewbery) +- #19178 Make `mininode_lock` non-reentrant (jnewbery) +- #19153 Mempool compatibility test (S3RK) +- #18434 Add a test-security target and run it in CI (fanquake) +- #19252 Wait for disconnect in `disconnect_p2ps` + bloomfilter test followups (gzhao408) +- #19298 Add missing `sync_blocks` (MarcoFalke) +- #19304 Check that message sends successfully when header is split across two buffers (troygiorshev) +- #19208 move `sync_blocks` and `sync_mempool` functions to `test_framework.py` (ycshao) +- #19198 Check that peers with forcerelay permission are not asked to feefilter (MarcoFalke) +- #19351 add two edge case tests for CSubNet (vasild) +- #19272 net, test: invalid p2p messages and test framework improvements (jonatack) +- #19348 Bump linter versions (duncandean) +- #19366 Provide main(…) function in fuzzer. Allow building uninstrumented harnesses with --enable-fuzz (practicalswift) +- #19412 move `TEST_RUNNER_EXTRA` into native tsan setup (fanquake) +- #19368 Improve functional tests compatibility with BSD/macOS (S3RK) +- #19028 Set -logthreadnames in unit tests (MarcoFalke) +- #18649 Add std::locale::global to list of locale dependent functions (practicalswift) +- #19140 Avoid fuzzer-specific nullptr dereference in libevent when handling PROXY requests (practicalswift) +- #19214 Auto-detect SHA256 implementation in benchmarks (sipa) +- #19353 Fix mistakenly swapped "previous" and "current" lock orders (hebasto) +- #19533 Remove unnecessary `cs_mains` in `denialofservice_tests` (jnewbery) +- #19423 add functional test for txrelay during and after IBD (gzhao408) +- #16878 Fix non-deterministic coverage of test `DoS_mapOrphans` (davereikher) +- #19548 fuzz: add missing overrides to `signature_checker` (jonatack) +- #19562 Fix fuzzer compilation on macOS (freenancial) +- #19370 Static asserts for consistency of fee defaults (domob1812) +- #19599 clean `message_count` and `last_message` (troygiorshev) +- #19597 test decodepsbt fee calculation (count input value only once per UTXO) (theStack) +- #18011 Replace current benchmarking framework with nanobench (martinus) +- #19489 Fail `wait_until` early if connection is lost (MarcoFalke) +- #19340 Preserve the `LockData` initial state if "potential deadlock detected" exception thrown (hebasto) +- #19632 Catch decimal.InvalidOperation from `TestNodeCLI#send_cli` (Empact) +- #19098 Remove duplicate NodeContext hacks (ryanofsky) +- #19649 Restore test case for p2p transaction blinding (instagibbs) +- #19657 Wait until `is_connected` in `add_p2p_connection` (MarcoFalke) +- #19631 Wait for 'cmpctblock' in `p2p_compactblocks` when it is expected (Empact) +- #19674 use throwaway _ variable for unused loop counters (theStack) +- #19709 Fix 'make cov' with clang (hebasto) +- #19564 `p2p_feefilter` improvements (logging, refactoring, speedup) (theStack) +- #19756 add `sync_all` to fix race condition in wallet groups test (kallewoof) +- #19727 Removing unused classes from `p2p_leak.py` (dhruv) +- #19722 Add test for getblockheader verboseness (torhte) +- #19659 Add a seed corpus generation option to the fuzzing `test_runner` (darosior) +- #19775 Activate segwit in TestChain100Setup (MarcoFalke) +- #19760 Remove confusing mininode terminology (jnewbery) +- #19752 Update `wait_until` usage in tests not to use the one from utils (slmtpz) +- #19839 Set appveyor VM version to previous Visual Studio 2019 release (sipsorcery) +- #19830 Add tsan supp for leveldb::DBImpl::DeleteObsoleteFiles (MarcoFalke) +- #19710 bench: Prevent thread oversubscription and decreases the variance of result values (hebasto) +- #19842 Update the vcpkg checkout commit ID in appveyor config (sipsorcery) +- #19507 Expand functional zmq transaction tests (instagibbs) +- #19816 Rename wait until helper to `wait_until_helper` (MarcoFalke) +- #19859 Fixes failing functional test by changing version (n-thumann) +- #19887 Fix flaky `wallet_basic` test (fjahr) +- #19897 Change `FILE_CHAR_BLOCKLIST` to `FILE_CHARS_DISALLOWED` (verretor) +- #19800 Mockwallet (MarcoFalke) +- #19922 Run `rpc_txoutproof.py` even with wallet disabled (MarcoFalke) +- #19936 batch rpc with params (instagibbs) +- #19971 create default wallet in extended tests (Sjors) +- #19781 add parameterized constructor for `msg_sendcmpct()` (theStack) +- #19963 Clarify blocksonly whitelistforcerelay test (t-bast) +- #20022 Use explicit p2p objects where available (guggero) +- #20028 Check that invalid peer traffic is accounted for (MarcoFalke) +- #20004 Add signet witness commitment section parse tests (MarcoFalke) +- #20034 Get rid of default wallet hacks (ryanofsky) +- #20069 Mention commit id in scripted diff error (laanwj) +- #19947 Cover `change_type` option of "walletcreatefundedpsbt" RPC (guggero) +- #20126 `p2p_leak_tx.py` improvements (use MiniWallet, add `p2p_lock` acquires) (theStack) +- #20129 Don't export `in6addr_loopback` (vasild) +- #20131 Remove unused nVersion=1 in p2p tests (MarcoFalke) +- #20161 Minor Taproot follow-ups (sipa) +- #19401 Use GBT to get block versions correct (luke-jr) +- #20159 `mining_getblocktemplate_longpoll.py` improvements (use MiniWallet, add logging) (theStack) +- #20039 Convert amounts from float to decimal (prayank23) +- #20112 Speed up `wallet_resendwallettransactions` with mockscheduler RPC (MarcoFalke) +- #20247 fuzz: Check for addrv1 compatibility before using addrv1 serializer. Fuzz addrv2 serialization (practicalswift) +- #20167 Add test for -blockversion (MarcoFalke) +- #19877 Clarify `rpc_net` & `p2p_disconnect_ban functional` tests (amitiuttarwar) +- #20258 Remove getnettotals/getpeerinfo consistency test (jnewbery) +- #20242 fuzz: Properly initialize PrecomputedTransactionData (MarcoFalke) +- #20262 Skip --descriptor tests if sqlite is not compiled (achow101) +- #18788 Update more tests to work with descriptor wallets (achow101) +- #20289 fuzz: Check for addrv1 compatibility before using addrv1 serializer/deserializer on CService (practicalswift) +- #20290 fuzz: Fix DecodeHexTx fuzzing harness issue (practicalswift) +- #20245 Run `script_assets_test` even if built --with-libs=no (MarcoFalke) +- #20300 fuzz: Add missing `ECC_Start` to `descriptor_parse` test (S3RK) +- #20283 Only try witness deser when checking for witness deser failure (MarcoFalke) +- #20303 fuzz: Assert expected DecodeHexTx behaviour when using legacy decoding (practicalswift) +- #20316 Fix `wallet_multiwallet` test issue on Windows (MarcoFalke) +- #20326 Fix `ecdsa_verify` in test framework (stepansnigirev) +- #20328 cirrus: Skip tasks on the gui repo main branch (MarcoFalke) +- #20355 fuzz: Check for addrv1 compatibility before using addrv1 serializer/deserializer on CSubNet (practicalswift) +- #20332 Mock IBD in `net_processing` fuzzers (MarcoFalke) +- #20218 Suppress `epoll_ctl` data race (MarcoFalke) +- #20375 fuzz: Improve coverage for CPartialMerkleTree fuzzing harness (practicalswift) +- #19669 contrib: Fixup valgrind suppressions file (MarcoFalke) +- #18879 valgrind: remove outdated suppressions (fanquake) +- #19226 Add BerkeleyDatabase tsan suppression (MarcoFalke) +- #20379 Remove no longer needed UBSan suppression (float divide-by-zero in validation.cpp) (practicalswift) +- #18190, #18736, #18744, #18775, #18783, #18867, #18994, #19065, + #19067, #19143, #19222, #19247, #19286, #19296, #19379, #19934, + #20188, #20395 Add fuzzing harnessses (practicalswift) +- #18638 Use mockable time for ping/pong, add tests (MarcoFalke) +- #19951 CNetAddr scoped ipv6 test coverage, rename scopeId to `m_scope_id` (jonatack) +- #20027 Use mockable time everywhere in `net_processing` (sipa) +- #19105 Add Muhash3072 implementation in Python (fjahr) +- #18704, #18752, #18753, #18765, #18839, #18866, #18873, #19022, + #19023, #19429, #19552, #19778, #20176, #20179, #20214, #20292, + #20299, #20322 Fix intermittent test issues (MarcoFalke) +- #20390 CI/Cirrus: Skip `merge_base` step for non-PRs (luke-jr) +- #18634 ci: Add fuzzbuzz integration configuration file (practicalswift) +- #18591 Add C++17 build to Travis (sipa) +- #18581, #18667, #18798, #19495, #19519, #19538 CI improvements (hebasto) +- #18683, #18705, #18735, #18778, #18799, #18829, #18912, #18929, + #19008, #19041, #19164, #19201, #19267, #19276, #19321, #19371, + #19427, #19730, #19746, #19881, #20294, #20339, #20368 CI improvements (MarcoFalke) +- #20489, #20506 MSVC CI improvements (sipsorcery) + +### Miscellaneous +- #18713 scripts: Add macho stack canary check to security-check.py (fanquake) +- #18629 scripts: Add pe .reloc section check to security-check.py (fanquake) +- #18437 util: `Detect posix_fallocate()` instead of assuming (vasild) +- #18413 script: Prevent ub when computing abs value for num opcode serialize (pierreN) +- #18443 lockedpool: avoid sensitive data in core files (FreeBSD) (vasild) +- #18885 contrib: Move optimize-pngs.py script to the maintainer repo (MarcoFalke) +- #18317 Serialization improvements step 6 (all except wallet/gui) (sipa) +- #16127 More thread safety annotation coverage (ajtowns) +- #19228 Update libsecp256k1 subtree (sipa) +- #19277 util: Add assert identity function (MarcoFalke) +- #19491 util: Make assert work with any value (MarcoFalke) +- #19205 script: `previous_release.sh` rewritten in python (bliotti) +- #15935 Add <datadir>/settings.json persistent settings storage (ryanofsky) +- #19439 script: Linter to check commit message formatting (Ghorbanian) +- #19654 lint: Improve commit message linter in travis (fjahr) +- #15382 util: Add runcommandparsejson (Sjors) +- #19614 util: Use `have_fdatasync` to determine fdatasync() use (fanquake) +- #19813 util, ci: Hard code previous release tarball checksums (hebasto) +- #19841 Implement Keccak and `SHA3_256` (sipa) +- #19643 Add -netinfo peer connections dashboard (jonatack) +- #15367 feature: Added ability for users to add a startup command (benthecarman) +- #19984 log: Remove static log message "Initializing chainstate Chainstate [ibd] @ height -1 (null)" (practicalswift) +- #20092 util: Do not use gargs global in argsmanager member functions (hebasto) +- #20168 contrib: Fix `gen_key_io_test_vectors.py` imports (MarcoFalke) +- #19624 Warn on unknown `rw_settings` (MarcoFalke) +- #20257 Update secp256k1 subtree to latest master (sipa) +- #20346 script: Modify security-check.py to use "==" instead of "is" for literal comparison (tylerchambers) +- #18881 Prevent UB in DeleteLock() function (hebasto) +- #19180, #19189, #19190, #19220, #19399 Replace RecursiveMutex with Mutex (hebasto) +- #19347 Make `cs_inventory` nonrecursive (jnewbery) +- #19773 Avoid recursive lock in IsTrusted (promag) +- #18790 Improve thread naming (hebasto) +- #20140 Restore compatibility with old CSubNet serialization (sipa) +- #17775 DecodeHexTx: Try case where txn has inputs first (instagibbs) + +### Documentation +- #18502 Update docs for getbalance (default minconf should be 0) (uzyn) +- #18632 Fix macos comments in release-notes (MarcoFalke) +- #18645 Update thread information in developer docs (jnewbery) +- #18709 Note why we can't use `thread_local` with glibc back compat (fanquake) +- #18410 Improve commenting for coins.cpp|h (jnewbery) +- #18157 fixing init.md documentation to not require rpcpassword (jkcd) +- #18739 Document how to fuzz Bitcoin Core using Honggfuzz (practicalswift) +- #18779 Better explain GNU ld's dislike of ld64's options (fanquake) +- #18663 Mention build docs in README.md (saahilshangle) +- #18810 Update rest info on block size and json (chrisabrams) +- #18939 Add c++17-enable flag to fuzzing instructions (mzumsande) +- #18957 Add a link from ZMQ doc to ZMQ example in contrib/ (meeDamian) +- #19058 Drop protobuf stuff (hebasto) +- #19061 Add link to Visual Studio build readme (maitrebitcoin) +- #19072 Expand section on Getting Started (MarcoFalke) +- #18968 noban precludes maxuploadtarget disconnects (MarcoFalke) +- #19005 Add documentation for 'checklevel' argument in 'verifychain' RPC… (kcalvinalvin) +- #19192 Extract net permissions doc (MarcoFalke) +- #19071 Separate repository for the gui (MarcoFalke) +- #19018 fixing description of the field sequence in walletcreatefundedpsbt RPC method (limpbrains) +- #19367 Span pitfalls (sipa) +- #19408 Windows WSL build recommendation to temporarily disable Win32 PE support (sipsorcery) +- #19407 explain why passing -mlinker-version is required when cross-compiling (fanquake) +- #19452 afl fuzzing comment about afl-gcc and afl-g++ (Crypt-iQ) +- #19258 improve subtree check instructions (Sjors) +- #19474 Use precise permission flags where possible (MarcoFalke) +- #19494 CONTRIBUTING.md improvements (jonatack) +- #19268 Add non-thread-safe note to FeeFilterRounder::round() (hebasto) +- #19547 Update macOS cross compilation dependencies for Focal (hebasto) +- #19617 Clang 8 or later is required with `FORCE_USE_SYSTEM_CLANG` (fanquake) +- #19639 Remove Reference Links #19582 (RobertHosking) +- #19605 Set `CC_FOR_BUILD` when building on OpenBSD (fanquake) +- #19765 Fix getmempoolancestors RPC result doc (MarcoFalke) +- #19786 Remove label from good first issue template (MarcoFalke) +- #19646 Updated outdated help command for getblocktemplate (jakeleventhal) +- #18817 Document differences in bitcoind and bitcoin-qt locale handling (practicalswift) +- #19870 update PyZMQ install instructions, fix `zmq_sub.py` file permissions (jonatack) +- #19903 Update build-openbsd.md with GUI support (grubles) +- #19241 help: Generate checkpoint height from chainparams (luke-jr) +- #18949 Add CODEOWNERS file to automatically nominate PR reviewers (adamjonas) +- #20014 Mention signet in -help output (hebasto) +- #20015 Added default signet config for linearize script (gr0kchain) +- #19958 Better document features of feelers (naumenkogs) +- #19871 Clarify scope of eviction protection of outbound block-relay peers (ariard) +- #20076 Update and improve files.md (hebasto) +- #20107 Collect release-notes snippets (MarcoFalke) +- #20109 Release notes and followups from 19339 (glozow) +- #20090 Tiny followups to new getpeerinfo connection type field (amitiuttarwar) +- #20152 Update wallet files in files.md (hebasto) +- #19124 Document `ALLOW_HOST_PACKAGES` dependency option (skmcontrib) +- #20271 Document that wallet salvage is experimental (MarcoFalke) +- #20281 Correct getblockstats documentation for `(sw)total_weight` (shesek) +- #20279 release process updates/fixups (jonatack) +- #20238 Missing comments for signet parameters (decryp2kanon) +- #20756 Add missing field (permissions) to the getpeerinfo help (amitiuttarwar) +- #20668 warn that incoming conns are unlikely when not using default ports (adamjonas) +- #19961 tor.md updates (jonatack) +- #19050 Add warning for rest interface limitation (fjahr) +- #19390 doc/REST-interface: Remove stale info (luke-jr) +- #19344 docs: update testgen usage example (Bushstar) + +Credits +======= + +Thanks to everyone who directly contributed to this release: + +- 10xcryptodev +- Aaron Clauson +- Aaron Hook +- Adam Jonas +- Adam Soltys +- Adam Stein +- Akio Nakamura +- Alex Willmer +- Amir Ghorbanian +- Amiti Uttarwar +- Andrew Chow +- Andrew Toth +- Anthony Fieroni +- Anthony Towns +- Antoine Poinsot +- Antoine Riard +- Ben Carman +- Ben Woosley +- Benoit Verret +- Brian Liotti +- Bushstar +- Calvin Kim +- Carl Dong +- Chris Abrams +- Chris L +- Christopher Coverdale +- codeShark149 +- Cory Fields +- Craig Andrews +- Damian Mee +- Daniel Kraft +- Danny Lee +- David Reikher +- DesWurstes +- Dhruv Mehta +- Duncan Dean +- Elichai Turkel +- Elliott Jin +- Emil Engler +- Ethan Heilman +- eugene +- Fabian Jahr +- fanquake +- Ferdinando M. Ametrano +- freenancial +- furszy +- Gillian Chu +- Gleb Naumenko +- Glenn Willen +- Gloria Zhao +- glowang +- gr0kchain +- Gregory Sanders +- grubles +- gzhao408 +- Harris +- Hennadii Stepanov +- Hugo Nguyen +- Igor Cota +- Ivan Metlushko +- Ivan Vershigora +- Jake Leventhal +- James O'Beirne +- Jeremy Rubin +- jgmorgan +- Jim Posen +- “jkcd” +- jmorgan +- John Newbery +- Johnson Lau +- Jon Atack +- Jonas Schnelli +- Jonathan Schoeller +- João Barbosa +- Justin Moon +- kanon +- Karl-Johan Alm +- Kiminuo +- Kristaps Kaupe +- lontivero +- Luke Dashjr +- Marcin Jachymiak +- MarcoFalke +- Martin Ankerl +- Martin Zumsande +- maskoficarus +- Matt Corallo +- Matthew Zipkin +- MeshCollider +- Miguel Herranz +- MIZUTA Takeshi +- mruddy +- Nadav Ivgi +- Neha Narula +- Nicolas Thumann +- Niklas Gögge +- Nima Yazdanmehr +- nsa +- nthumann +- Oliver Gugger +- pad +- pasta +- Peter Bushnell +- pierrenn +- Pieter Wuille +- practicalswift +- Prayank +- Raúl Martínez (RME) +- RandyMcMillan +- Rene Pickhardt +- Riccardo Masutti +- Robert +- Rod Vagg +- Roy Shao +- Russell Yanofsky +- Saahil Shangle +- sachinkm77 +- saibato +- Samuel Dobson +- sanket1729 +- Sebastian Falbesoner +- Seleme Topuz +- Sishir Giri +- Sjors Provoost +- skmcontrib +- Stepan Snigirev +- Stephan Oeste +- Suhas Daftuar +- t-bast +- Tom Harding +- Torhte Butler +- TrentZ +- Troy Giorshev +- tryphe +- Tyler Chambers +- U-Zyn Chua +- Vasil Dimov +- wiz +- Wladimir J. van der Laan + +As well as to everyone that helped with translations on +[Transifex](https://www.transifex.com/bitcoin/bitcoin/). |