diff options
author | Wladimir J. van der Laan <laanwj@gmail.com> | 2016-03-01 13:51:38 +0100 |
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committer | Wladimir J. van der Laan <laanwj@gmail.com> | 2016-03-01 13:52:01 +0100 |
commit | 35af157641ddbf6090e86edff7533d45ee4fb990 (patch) | |
tree | c706ef2e18105d9ca96eb4e61a853fa6a80296c6 | |
parent | 188ca9c305d3dd0fb462b9d6a44048b1d99a05f3 (diff) |
doc: Clean out release notes
0.12.0 was released, prepare empty release notes for 0.12.1.
-rw-r--r-- | doc/release-notes.md | 822 |
1 files changed, 5 insertions, 817 deletions
diff --git a/doc/release-notes.md b/doc/release-notes.md index 332d4cebe1..17a8984b37 100644 --- a/doc/release-notes.md +++ b/doc/release-notes.md @@ -1,6 +1,6 @@ -Bitcoin Core version 0.12.0 is now available from: +Bitcoin Core version 0.12.1 is now available from: - <https://bitcoin.org/bin/bitcoin-core-0.12.0/> + <https://bitcoin.org/bin/bitcoin-core-0.12.1/> This is a new major version release, bringing new features and other improvements. @@ -22,28 +22,6 @@ bitcoind/bitcoin-qt (on Linux). Downgrade warning ----------------- -### Downgrade to a version < 0.10.0 - -Because release 0.10.0 and later makes use of headers-first synchronization and -parallel block download (see further), the block files and databases are not -backwards-compatible with pre-0.10 versions of Bitcoin Core or other software: - -* Blocks will be stored on disk out of order (in the order they are -received, really), which makes it incompatible with some tools or -other programs. Reindexing using earlier versions will also not work -anymore as a result of this. - -* The block index database will now hold headers for which no block is -stored on disk, which earlier versions won't support. - -If you want to be able to downgrade smoothly, make a backup of your entire data -directory. Without this your node will need start syncing (or importing from -bootstrap.dat) anew afterwards. It is possible that the data from a completely -synchronised 0.10 node may be usable in older versions as-is, but this is not -supported and may break as soon as the older version attempts to reindex. - -This does not affect wallet forward or backward compatibility. - ### Downgrade to a version < 0.12.0 Because release 0.12.0 and later will obfuscate the chainstate on every @@ -57,408 +35,12 @@ earlier. Notable changes =============== -Signature validation using libsecp256k1 ---------------------------------------- - -ECDSA signatures inside Bitcoin transactions now use validation using -[https://github.com/bitcoin/secp256k1](libsecp256k1) instead of OpenSSL. - -Depending on the platform, this means a significant speedup for raw signature -validation speed. The advantage is largest on x86_64, where validation is over -five times faster. In practice, this translates to a raw reindexing and new -block validation times that are less than half of what it was before. - -Libsecp256k1 has undergone very extensive testing and validation. - -A side effect of this change is that libconsensus no longer depends on OpenSSL. - -Reduce upload traffic ---------------------- - -A major part of the outbound traffic is caused by serving historic blocks to -other nodes in initial block download state. - -It is now possible to reduce the total upload traffic via the `-maxuploadtarget` -parameter. This is *not* a hard limit but a threshold to minimize the outbound -traffic. When the limit is about to be reached, the uploaded data is cut by not -serving historic blocks (blocks older than one week). -Moreover, any SPV peer is disconnected when they request a filtered block. - -This option can be specified in MiB per day and is turned off by default -(`-maxuploadtarget=0`). -The recommended minimum is 144 * MAX_BLOCK_SIZE (currently 144MB) per day. - -Whitelisted peers will never be disconnected, although their traffic counts for -calculating the target. - -A more detailed documentation about keeping traffic low can be found in -[/doc/reduce-traffic.md](/doc/reduce-traffic.md). - -Direct headers announcement (BIP 130) -------------------------------------- - -Between compatible peers, [BIP 130] -(https://github.com/bitcoin/bips/blob/master/bip-0130.mediawiki) -direct headers announcement is used. This means that blocks are advertized by -announcing their headers directly, instead of just announcing the hash. In a -reorganization, all new headers are sent, instead of just the new tip. This -can often prevent an extra roundtrip before the actual block is downloaded. - -With this change, pruning nodes are now able to relay new blocks to compatible -peers. - -Memory pool limiting --------------------- - -Previous versions of Bitcoin Core had their mempool limited by checking -a transaction's fees against the node's minimum relay fee. There was no -upper bound on the size of the mempool and attackers could send a large -number of transactions paying just slighly more than the default minimum -relay fee to crash nodes with relatively low RAM. A temporary workaround -for previous versions of Bitcoin Core was to raise the default minimum -relay fee. - -Bitcoin Core 0.12 will have a strict maximum size on the mempool. The -default value is 300 MB and can be configured with the `-maxmempool` -parameter. Whenever a transaction would cause the mempool to exceed -its maximum size, the transaction that (along with in-mempool descendants) has -the lowest total feerate (as a package) will be evicted and the node's effective -minimum relay feerate will be increased to match this feerate plus the initial -minimum relay feerate. The initial minimum relay feerate is set to -1000 satoshis per kB. - -Bitcoin Core 0.12 also introduces new default policy limits on the length and -size of unconfirmed transaction chains that are allowed in the mempool -(generally limiting the length of unconfirmed chains to 25 transactions, with a -total size of 101 KB). These limits can be overriden using command line -arguments; see the extended help (`--help -help-debug`) for more information. - -Opt-in Replace-by-fee transactions ----------------------------------- - -It is now possible to replace transactions in the transaction memory pool of -Bitcoin Core 0.12 nodes. Bitcoin Core will only allow replacement of -transactions which have any of their inputs' `nSequence` number set to less -than `0xffffffff - 1`. Moreover, a replacement transaction may only be -accepted when it pays sufficient fee, as described in [BIP 125] -(https://github.com/bitcoin/bips/blob/master/bip-0125.mediawiki). - -Transaction replacement can be disabled with a new command line option, -`-mempoolreplacement=0`. Transactions signaling replacement under BIP125 will -still be allowed into the mempool in this configuration, but replacements will -be rejected. This option is intended for miners who want to continue the -transaction selection behavior of previous releases. - -The `-mempoolreplacement` option is *not recommended* for wallet users seeking -to avoid receipt of unconfirmed opt-in transactions, because this option does -not prevent transactions which are replaceable under BIP 125 from being accepted -(only subsequent replacements, which other nodes on the network that implement -BIP 125 are likely to relay and mine). Wallet users wishing to detect whether -a transaction is subject to replacement under BIP 125 should instead use the -updated RPC calls `gettransaction` and `listtransactions`, which now have an -additional field in the output indicating if a transaction is replaceable under -BIP125 ("bip125-replaceable"). - -Note that the wallet in Bitcoin Core 0.12 does not yet have support for -creating transactions that would be replaceable under BIP 125. - - -RPC: Random-cookie RPC authentication -------------------------------------- - -When no `-rpcpassword` is specified, the daemon now uses a special 'cookie' -file for authentication. This file is generated with random content when the -daemon starts, and deleted when it exits. Its contents are used as -authentication token. Read access to this file controls who can access through -RPC. By default it is stored in the data directory but its location can be -overridden with the option `-rpccookiefile`. - -This is similar to Tor's CookieAuthentication: see -https://www.torproject.org/docs/tor-manual.html.en - -This allows running bitcoind without having to do any manual configuration. - -Relay: Any sequence of pushdatas in OP_RETURN outputs now allowed ------------------------------------------------------------------ - -Previously OP_RETURN outputs with a payload were only relayed and mined if they -had a single pushdata. This restriction has been lifted to allow any -combination of data pushes and numeric constant opcodes (OP_1 to OP_16) after -the OP_RETURN. The limit on OP_RETURN output size is now applied to the entire -serialized scriptPubKey, 83 bytes by default. (the previous 80 byte default plus -three bytes overhead) - -Relay and Mining: Priority transactions +Example item --------------------------------------- -Bitcoin Core has a heuristic 'priority' based on coin value and age. This -calculation is used for relaying of transactions which do not pay the -minimum relay fee, and can be used as an alternative way of sorting -transactions for mined blocks. Bitcoin Core will relay transactions with -insufficient fees depending on the setting of `-limitfreerelay=<r>` (default: -`r=15` kB per minute) and `-blockprioritysize=<s>`. - -In Bitcoin Core 0.12, when mempool limit has been reached a higher minimum -relay fee takes effect to limit memory usage. Transactions which do not meet -this higher effective minimum relay fee will not be relayed or mined even if -they rank highly according to the priority heuristic. - -The mining of transactions based on their priority is also now disabled by -default. To re-enable it, simply set `-blockprioritysize=<n>` where is the size -in bytes of your blocks to reserve for these transactions. The old default was -50k, so to retain approximately the same policy, you would set -`-blockprioritysize=50000`. - -Additionally, as a result of computational simplifications, the priority value -used for transactions received with unconfirmed inputs is lower than in prior -versions due to avoiding recomputing the amounts as input transactions confirm. - -External miner policy set via the `prioritisetransaction` RPC to rank -transactions already in the mempool continues to work as it has previously. -Note, however, that if mining priority transactions is left disabled, the -priority delta will be ignored and only the fee metric will be effective. - -This internal automatic prioritization handling is being considered for removal -entirely in Bitcoin Core 0.13, and it is at this time undecided whether the -more accurate priority calculation for chained unconfirmed transactions will be -restored. Community direction on this topic is particularly requested to help -set project priorities. - -Automatically use Tor hidden services -------------------------------------- - -Starting with Tor version 0.2.7.1 it is possible, through Tor's control socket -API, to create and destroy 'ephemeral' hidden services programmatically. -Bitcoin Core has been updated to make use of this. - -This means that if Tor is running (and proper authorization is available), -Bitcoin Core automatically creates a hidden service to listen on, without -manual configuration. Bitcoin Core will also use Tor automatically to connect -to other .onion nodes if the control socket can be successfully opened. This -will positively affect the number of available .onion nodes and their usage. - -This new feature is enabled by default if Bitcoin Core is listening, and -a connection to Tor can be made. It can be configured with the `-listenonion`, -`-torcontrol` and `-torpassword` settings. To show verbose debugging -information, pass `-debug=tor`. - -Notifications through ZMQ -------------------------- - -Bitcoind can now (optionally) asynchronously notify clients through a -ZMQ-based PUB socket of the arrival of new transactions and blocks. -This feature requires installation of the ZMQ C API library 4.x and -configuring its use through the command line or configuration file. -Please see [docs/zmq.md](/doc/zmq.md) for details of operation. - -Wallet: Transaction fees ------------------------- - -Various improvements have been made to how the wallet calculates -transaction fees. - -Users can decide to pay a predefined fee rate by setting `-paytxfee=<n>` -(or `settxfee <n>` rpc during runtime). A value of `n=0` signals Bitcoin -Core to use floating fees. By default, Bitcoin Core will use floating -fees. - -Based on past transaction data, floating fees approximate the fees -required to get into the `m`th block from now. This is configurable -with `-txconfirmtarget=<m>` (default: `2`). - -Sometimes, it is not possible to give good estimates, or an estimate -at all. Therefore, a fallback value can be set with `-fallbackfee=<f>` -(default: `0.0002` BTC/kB). - -At all times, Bitcoin Core will cap fees at `-maxtxfee=<x>` (default: -0.10) BTC. -Furthermore, Bitcoin Core will never create transactions smaller than -the current minimum relay fee. -Finally, a user can set the minimum fee rate for all transactions with -`-mintxfee=<i>`, which defaults to 1000 satoshis per kB. - -Wallet: Negative confirmations and conflict detection ------------------------------------------------------ - -The wallet will now report a negative number for confirmations that indicates -how deep in the block chain the conflict is found. For example, if a transaction -A has 5 confirmations and spends the same input as a wallet transaction B, B -will be reported as having -5 confirmations. If another wallet transaction C -spends an output from B, it will also be reported as having -5 confirmations. -To detect conflicts with historical transactions in the chain a one-time -`-rescan` may be needed. - -Unlike earlier versions, unconfirmed but non-conflicting transactions will never -get a negative confirmation count. They are not treated as spendable unless -they're coming from ourself (change) and accepted into our local mempool, -however. The new "trusted" field in the `listtransactions` RPC output -indicates whether outputs of an unconfirmed transaction are considered -spendable. - -Wallet: Merkle branches removed -------------------------------- +Example text. -Previously, every wallet transaction stored a Merkle branch to prove its -presence in blocks. This wasn't being used for more than an expensive -sanity check. Since 0.12, these are no longer stored. When loading a -0.12 wallet into an older version, it will automatically rescan to avoid -failed checks. - -Wallet: Pruning ---------------- - -With 0.12 it is possible to use wallet functionality in pruned mode. -This can reduce the disk usage from currently around 60 GB to -around 2 GB. - -However, rescans as well as the RPCs `importwallet`, `importaddress`, -`importprivkey` are disabled. - -To enable block pruning set `prune=<N>` on the command line or in -`bitcoin.conf`, where `N` is the number of MiB to allot for -raw block & undo data. - -A value of 0 disables pruning. The minimal value above 0 is 550. Your -wallet is as secure with high values as it is with low ones. Higher -values merely ensure that your node will not shut down upon blockchain -reorganizations of more than 2 days - which are unlikely to happen in -practice. In future releases, a higher value may also help the network -as a whole: stored blocks could be served to other nodes. - -For further information about pruning, you may also consult the [release -notes of v0.11.0](https://github.com/bitcoin/bitcoin/blob/v0.11.0/doc/release-notes.md#block-file-pruning). - -`NODE_BLOOM` service bit ------------------------- - -Support for the `NODE_BLOOM` service bit, as described in [BIP -111](https://github.com/bitcoin/bips/blob/master/bip-0111.mediawiki), has been -added to the P2P protocol code. - -BIP 111 defines a service bit to allow peers to advertise that they support -bloom filters (such as used by SPV clients) explicitly. It also bumps the protocol -version to allow peers to identify old nodes which allow bloom filtering of the -connection despite lacking the new service bit. - -In this version, it is only enforced for peers that send protocol versions -`>=70011`. For the next major version it is planned that this restriction will be -removed. It is recommended to update SPV clients to check for the `NODE_BLOOM` -service bit for nodes that report versions newer than 70011. - -Option parsing behavior ------------------------ - -Command line options are now parsed strictly in the order in which they are -specified. It used to be the case that `-X -noX` ends up, unintuitively, with X -set, as `-X` had precedence over `-noX`. This is no longer the case. Like for -other software, the last specified value for an option will hold. - -RPC: Low-level API changes --------------------------- - -- Monetary amounts can be provided as strings. This means that for example the - argument to sendtoaddress can be "0.0001" instead of 0.0001. This can be an - advantage if a JSON library insists on using a lossy floating point type for - numbers, which would be dangerous for monetary amounts. - -* The `asm` property of each scriptSig now contains the decoded signature hash - type for each signature that provides a valid defined hash type. - -* OP_NOP2 has been renamed to OP_CHECKLOCKTIMEVERIFY by [BIP 65](https://github.com/bitcoin/bips/blob/master/bip-0065.mediawiki) - -The following items contain assembly representations of scriptSig signatures -and are affected by this change: - -- RPC `getrawtransaction` -- RPC `decoderawtransaction` -- RPC `decodescript` -- REST `/rest/tx/` (JSON format) -- REST `/rest/block/` (JSON format when including extended tx details) -- `bitcoin-tx -json` - -For example, the `scriptSig.asm` property of a transaction input that -previously showed an assembly representation of: - - 304502207fa7a6d1e0ee81132a269ad84e68d695483745cde8b541e3bf630749894e342a022100c1f7ab20e13e22fb95281a870f3dcf38d782e53023ee313d741ad0cfbc0c509001 400000 OP_NOP2 - -now shows as: - - 304502207fa7a6d1e0ee81132a269ad84e68d695483745cde8b541e3bf630749894e342a022100c1f7ab20e13e22fb95281a870f3dcf38d782e53023ee313d741ad0cfbc0c5090[ALL] 400000 OP_CHECKLOCKTIMEVERIFY - -Note that the output of the RPC `decodescript` did not change because it is -configured specifically to process scriptPubKey and not scriptSig scripts. - -RPC: SSL support dropped ------------------------- - -SSL support for RPC, previously enabled by the option `rpcssl` has been dropped -from both the client and the server. This was done in preparation for removing -the dependency on OpenSSL for the daemon completely. - -Trying to use `rpcssl` will result in an error: - - Error: SSL mode for RPC (-rpcssl) is no longer supported. - -If you are one of the few people that relies on this feature, a flexible -migration path is to use `stunnel`. This is an utility that can tunnel -arbitrary TCP connections inside SSL. On e.g. Ubuntu it can be installed with: - - sudo apt-get install stunnel4 - -Then, to tunnel a SSL connection on 28332 to a RPC server bound on localhost on port 18332 do: - - stunnel -d 28332 -r 127.0.0.1:18332 -p stunnel.pem -P '' - -It can also be set up system-wide in inetd style. - -Another way to re-attain SSL would be to setup a httpd reverse proxy. This solution -would allow the use of different authentication, loadbalancing, on-the-fly compression and -caching. A sample config for apache2 could look like: - - Listen 443 - - NameVirtualHost *:443 - <VirtualHost *:443> - - SSLEngine On - SSLCertificateFile /etc/apache2/ssl/server.crt - SSLCertificateKeyFile /etc/apache2/ssl/server.key - - <Location /bitcoinrpc> - ProxyPass http://127.0.0.1:8332/ - ProxyPassReverse http://127.0.0.1:8332/ - # optional enable digest auth - # AuthType Digest - # ... - - # optional bypass bitcoind rpc basic auth - # RequestHeader set Authorization "Basic <hash>" - # get the <hash> from the shell with: base64 <<< bitcoinrpc:<password> - </Location> - - # Or, balance the load: - # ProxyPass / balancer://balancer_cluster_name - - </VirtualHost> - -Mining Code Changes -------------------- - -The mining code in 0.12 has been optimized to be significantly faster and use less -memory. As part of these changes, consensus critical calculations are cached on a -transaction's acceptance into the mempool and the mining code now relies on the -consistency of the mempool to assemble blocks. However all blocks are still tested -for validity after assembly. - -Other P2P Changes ------------------ - -The list of banned peers is now stored on disk rather than in memory. -Restarting bitcoind will no longer clear out the list of banned peers; instead -a new RPC call (`clearbanned`) can be used to manually clear the list. The new -`setban` RPC call can also be used to manually ban or unban a peer. - -0.12.0 Change log +0.12.1 Change log ================= Detailed release notes follow. This overview includes changes that affect @@ -468,423 +50,29 @@ git merge commit are mentioned. ### RPC and REST -- #6121 `466f0ea` Convert entire source tree from json_spirit to UniValue (Jonas Schnelli) -- #6234 `d38cd47` fix rpcmining/getblocktemplate univalue transition logic error (Jonas Schnelli) -- #6239 `643114f` Don't go through double in AmountFromValue and ValueFromAmount (Wladimir J. van der Laan) -- #6266 `ebab5d3` Fix univalue handling of \u0000 characters. (Daniel Kraft) -- #6276 `f3d4dbb` Fix getbalance * 0 (Tom Harding) -- #6257 `5ebe7db` Add `paytxfee` and `errors` JSON fields where appropriate (Stephen) -- #6271 `754aae5` New RPC command disconnectnode (Alex van der Peet) -- #6158 `0abfa8a` Add setban/listbanned RPC commands (Jonas Schnelli) -- #6307 `7ecdcd9` rpcban fixes (Jonas Schnelli) -- #6290 `5753988` rpc: make `gettxoutsettinfo` run lock-free (Wladimir J. van der Laan) -- #6262 `247b914` Return all available information via RPC call "validateaddress" (dexX7) -- #6339 `c3f0490` UniValue: don't escape solidus, keep espacing of reverse solidus (Jonas Schnelli) -- #6353 `6bcb0a2` Show softfork status in getblockchaininfo (Wladimir J. van der Laan) -- #6247 `726e286` Add getblockheader RPC call (Peter Todd) -- #6362 `d6db115` Fix null id in RPC response during startup (Forrest Voight) -- #5486 `943b322` [REST] JSON support for /rest/headers (Jonas Schnelli) -- #6379 `c52e8b3` rpc: Accept scientific notation for monetary amounts in JSON (Wladimir J. van der Laan) -- #6388 `fd5dfda` rpc: Implement random-cookie based authentication (Wladimir J. van der Laan) -- #6457 `3c923e8` Include pruned state in chaininfo.json (Simon Males) -- #6456 `bfd807f` rpc: Avoid unnecessary parsing roundtrip in number formatting, fix locale issue (Wladimir J. van der Laan) -- #6380 `240b30e` rpc: Accept strings in AmountFromValue (Wladimir J. van der Laan) -- #6346 `6bb2805` Add OP_RETURN support in createrawtransaction RPC call, add tests. (paveljanik) -- #6013 `6feeec1` [REST] Add memory pool API (paveljanik) -- #6576 `da9beb2` Stop parsing JSON after first finished construct. (Daniel Kraft) -- #5677 `9aa9099` libevent-based http server (Wladimir J. van der Laan) -- #6633 `bbc2b39` Report minimum ping time in getpeerinfo (Matt Corallo) -- #6648 `cd381d7` Simplify logic of REST request suffix parsing. (Daniel Kraft) -- #6695 `5e21388` libevent http fixes (Wladimir J. van der Laan) -- #5264 `48efbdb` show scriptSig signature hash types in transaction decodes. fixes #3166 (mruddy) -- #6719 `1a9f19a` Make HTTP server shutdown more graceful (Wladimir J. van der Laan) -- #6859 `0fbfc51` http: Restrict maximum size of http + headers (Wladimir J. van der Laan) -- #5936 `bf7c195` [RPC] Add optional locktime to createrawtransaction (Tom Harding) -- #6877 `26f5b34` rpc: Add maxmempool and effective min fee to getmempoolinfo (Wladimir J. van der Laan) -- #6970 `92701b3` Fix crash in validateaddress with -disablewallet (Wladimir J. van der Laan) -- #5574 `755b4ba` Expose GUI labels in RPC as comments (Luke-Jr) -- #6990 `dbd2c13` http: speed up shutdown (Wladimir J. van der Laan) -- #7013 `36baa9f` Remove LOCK(cs_main) from decodescript (Peter Todd) -- #6999 `972bf9c` add (max)uploadtarget infos to getnettotals RPC help (Jonas Schnelli) -- #7011 `31de241` Add mediantime to getblockchaininfo (Peter Todd) -- #7065 `f91e29f` http: add Boost 1.49 compatibility (Wladimir J. van der Laan) -- #7087 `be281d8` [Net]Add -enforcenodebloom option (Patrick Strateman) -- #7044 `438ee59` RPC: Added additional config option for multiple RPC users. (Gregory Sanders) -- #7072 `c143c49` [RPC] Add transaction size to JSON output (Nikita Zhavoronkov) -- #7022 `9afbd96` Change default block priority size to 0 (Alex Morcos) -- #7141 `c0c08c7` rpc: Don't translate warning messages (Wladimir J. van der Laan) -- #7312 `fd4bd50` Add RPC call abandontransaction (Alex Morcos) -- #7222 `e25b158` RPC: indicate which transactions are replaceable (Suhas Daftuar) -- #7472 `b2f2b85` rpc: Add WWW-Authenticate header to 401 response (Wladimir J. van der Laan) -- #7469 `9cb31e6` net.h fix spelling: misbeha{b,v}ing (Matt) - ### Configuration and command-line options -- #6164 `8d05ec7` Allow user to use -debug=1 to enable all debugging (lpescher) -- #5288 `4452205` Added -whiteconnections=<n> option (Josh Lehan) -- #6284 `10ac38e` Fix argument parsing oddity with -noX (Wladimir J. van der Laan) -- #6489 `c9c017a` Give a better error message if system clock is bad (Casey Rodarmor) -- #6462 `c384800` implement uacomment config parameter which can add comments to user agent as per BIP-0014 (Pavol Rusnak) -- #6647 `a3babc8` Sanitize uacomment (MarcoFalke) -- #6742 `3b2d37c` Changed logging to make -logtimestamps to work also for -printtoconsole (arnuschky) -- #6846 `2cd020d` alias -h for -help (Daniel Cousens) -- #6622 `7939164` Introduce -maxuploadtarget (Jonas Schnelli) -- #6881 `2b62551` Debug: Add option for microsecond precision in debug.log (Suhas Daftuar) -- #6776 `e06c14f` Support -checkmempool=N, which runs checks once every N transactions (Pieter Wuille) -- #6896 `d482c0a` Make -checkmempool=1 not fail through int32 overflow (Pieter Wuille) -- #6993 `b632145` Add -blocksonly option (Patrick Strateman) -- #7323 `a344880` 0.12: Backport -bytespersigop option (Luke-Jr) -- #7386 `da83ecd` Add option `-permitrbf` to set transaction replacement policy (Wladimir J. van der Laan) -- #7290 `b16b5bc` Add missing options help (MarcoFalke) -- #7440 `c76bfff` Rename permitrbf to mempoolreplacement and provide minimal string-list forward compatibility (Luke-Jr) - ### Block and transaction handling -- #6203 `f00b623` Remove P2SH coinbase flag, no longer interesting (Luke-Jr) -- #6222 `9c93ee5` Explicitly set tx.nVersion for the genesis block and mining tests (Mark Friedenbach) -- #5985 `3a1d3e8` Fix removing of orphan transactions (Alex Morcos) -- #6221 `dd8fe82` Prune: Support noncontiguous block files (Adam Weiss) -- #6124 `41076aa` Mempool only CHECKLOCKTIMEVERIFY (BIP65) verification, unparameterized version (Peter Todd) -- #6329 `d0a10c1` acceptnonstdtxn option to skip (most) "non-standard transaction" checks, for testnet/regtest only (Luke-Jr) -- #6410 `7cdefb9` Implement accurate memory accounting for mempool (Pieter Wuille) -- #6444 `24ce77d` Exempt unspendable transaction outputs from dust checks (dexX7) -- #5913 `a0625b8` Add absurdly high fee message to validation state (Shaul Kfir) -- #6177 `2f746c6` Prevent block.nTime from decreasing (Mark Friedenbach) -- #6377 `e545371` Handle no chain tip available in InvalidChainFound() (Ross Nicoll) -- #6551 `39ddaeb` Handle leveldb::DestroyDB() errors on wipe failure (Adam Weiss) -- #6654 `b0ce450` Mempool package tracking (Suhas Daftuar) -- #6715 `82d2aef` Fix mempool packages (Suhas Daftuar) -- #6680 `4f44530` use CBlockIndex instead of uint256 for UpdatedBlockTip signal (Jonas Schnelli) -- #6650 `4fac576` Obfuscate chainstate (James O'Beirne) -- #6777 `9caaf6e` Unobfuscate chainstate data in CCoinsViewDB::GetStats (James O'Beirne) -- #6722 `3b20e23` Limit mempool by throwing away the cheapest txn and setting min relay fee to it (Matt Corallo) -- #6889 `38369dd` fix locking issue with new mempool limiting (Jonas Schnelli) -- #6464 `8f3b3cd` Always clean up manual transaction prioritization (Casey Rodarmor) -- #6865 `d0badb9` Fix chainstate serialized_size computation (Pieter Wuille) -- #6566 `ff057f4` BIP-113: Mempool-only median time-past as endpoint for lock-time calculations (Mark Friedenbach) -- #6934 `3038eb6` Restores mempool only BIP113 enforcement (Gregory Maxwell) -- #6965 `de7d459` Benchmark sanity checks and fork checks in ConnectBlock (Matt Corallo) -- #6918 `eb6172a` Make sigcache faster, more efficient, larger (Pieter Wuille) -- #6771 `38ed190` Policy: Lower default limits for tx chains (Alex Morcos) -- #6932 `73fa5e6` ModifyNewCoins saves database lookups (Alex Morcos) -- #5967 `05d5918` Alter assumptions in CCoinsViewCache::BatchWrite (Alex Morcos) -- #6871 `0e93586` nSequence-based Full-RBF opt-in (Peter Todd) -- #7008 `eb77416` Lower bound priority (Alex Morcos) -- #6915 `2ef5ffa` [Mempool] Improve removal of invalid transactions after reorgs (Suhas Daftuar) -- #6898 `4077ad2` Rewrite CreateNewBlock (Alex Morcos) -- #6872 `bdda4d5` Remove UTXO cache entries when the tx they were added for is removed/does not enter mempool (Matt Corallo) -- #7062 `12c469b` [Mempool] Fix mempool limiting and replace-by-fee for PrioritiseTransaction (Suhas Daftuar) -- #7276 `76de36f` Report non-mandatory script failures correctly (Pieter Wuille) -- #7217 `e08b7cb` Mark blocks with too many sigops as failed (Suhas Daftuar) -- #7387 `f4b2ce8` Get rid of inaccurate ScriptSigArgsExpected (Pieter Wuille) - ### P2P protocol and network code -- #6172 `88a7ead` Ignore getheaders requests when not synced (Suhas Daftuar) -- #5875 `9d60602` Be stricter in processing unrequested blocks (Suhas Daftuar) -- #6256 `8ccc07c` Use best header chain timestamps to detect partitioning (Gavin Andresen) -- #6283 `a903ad7` make CAddrMan::size() return the correct type of size_t (Diapolo) -- #6272 `40400d5` Improve proxy initialization (continues #4871) (Wladimir J. van der Laan, Diapolo) -- #6310 `66e5465` banlist.dat: store banlist on disk (Jonas Schnelli) -- #6412 `1a2de32` Test whether created sockets are select()able (Pieter Wuille) -- #6498 `219b916` Keep track of recently rejected transactions with a rolling bloom filter (cont'd) (Peter Todd) -- #6556 `70ec975` Fix masking of irrelevant bits in address groups. (Alex Morcos) -- #6530 `ea19c2b` Improve addrman Select() performance when buckets are nearly empty (Pieter Wuille) -- #6583 `af9305a` add support for miniupnpc api version 14 (Pavel Vasin) -- #6374 `69dc5b5` Connection slot exhaustion DoS mitigation (Patrick Strateman) -- #6636 `536207f` net: correctly initialize nMinPingUsecTime (Wladimir J. van der Laan) -- #6579 `0c27795` Add NODE_BLOOM service bit and bump protocol version (Matt Corallo) -- #6148 `999c8be` Relay blocks when pruning (Suhas Daftuar) -- #6588 `cf9bb11` In (strCommand == "tx"), return if AlreadyHave() (Tom Harding) -- #6974 `2f71b07` Always allow getheaders from whitelisted peers (Wladimir J. van der Laan) -- #6639 `bd629d7` net: Automatically create hidden service, listen on Tor (Wladimir J. van der Laan) -- #6984 `9ffc687` don't enforce maxuploadtarget's disconnect for whitelisted peers (Jonas Schnelli) -- #7046 `c322652` Net: Improve blocks only mode. (Patrick Strateman) -- #7090 `d6454f6` Connect to Tor hidden services by default (when listening on Tor) (Peter Todd) -- #7106 `c894fbb` Fix and improve relay from whitelisted peers (Pieter Wuille) -- #7129 `5d5ef3a` Direct headers announcement (rebase of #6494) (Pieter Wuille) -- #7079 `1b5118b` Prevent peer flooding inv request queue (redux) (redux) (Gregory Maxwell) -- #7166 `6ba25d2` Disconnect on mempool requests from peers when over the upload limit. (Gregory Maxwell) -- #7133 `f31955d` Replace setInventoryKnown with a rolling bloom filter (rebase of #7100) (Pieter Wuille) -- #7174 `82aff88` Don't do mempool lookups for "mempool" command without a filter (Matt Corallo) -- #7179 `44fef99` net: Fix sent reject messages for blocks and transactions (Wladimir J. van der Laan) -- #7181 `8fc174a` net: Add and document network messages in protocol.h (Wladimir J. van der Laan) -- #7125 `10b88be` Replace global trickle node with random delays (Pieter Wuille) -- #7415 `cb83beb` net: Hardcoded seeds update January 2016 (Wladimir J. van der Laan) -- #7438 `e2d9a58` Do not absolutely protect local peers; decide group ties based on time (Gregory Maxwell) -- #7439 `86755bc` Add whitelistforcerelay to control forced relaying. [#7099 redux] (Gregory Maxwell) -- #7482 `e16f5b4` Ensure headers count is correct (Suhas Daftuar) - ### Validation -- #5927 `8d9f0a6` Reduce checkpoints' effect on consensus. (Pieter Wuille) -- #6299 `24f2489` Bugfix: Don't check the genesis block header before accepting it (Jorge Timón) -- #6361 `d7ada03` Use real number of cores for default -par, ignore virtual cores (Wladimir J. van der Laan) -- #6519 `87f37e2` Make logging for validation optional (Wladimir J. van der Laan) -- #6351 `2a1090d` CHECKLOCKTIMEVERIFY (BIP65) IsSuperMajority() soft-fork (Peter Todd) -- #6931 `54e8bfe` Skip BIP 30 verification where not necessary (Alex Morcos) -- #6954 `e54ebbf` Switch to libsecp256k1-based ECDSA validation (Pieter Wuille) -- #6508 `61457c2` Switch to a constant-space Merkle root/branch algorithm. (Pieter Wuille) -- #6914 `327291a` Add pre-allocated vector type and use it for CScript (Pieter Wuille) -- #7500 `889e5b3` Correctly report high-S violations (Pieter Wuille) - - ### Build system -- #6210 `0e4f2a0` build: disable optional use of gmp in internal secp256k1 build (Wladimir J. van der Laan) -- #6214 `87406aa` [OSX] revert renaming of Bitcoin-Qt.app and use CFBundleDisplayName (partial revert of #6116) (Jonas Schnelli) -- #6218 `9d67b10` build/gitian misc updates (Cory Fields) -- #6269 `d4565b6` gitian: Use the new bitcoin-detached-sigs git repo for OSX signatures (Cory Fields) -- #6418 `d4a910c` Add autogen.sh to source tarball. (randy-waterhouse) -- #6373 `1ae3196` depends: non-qt bumps for 0.12 (Cory Fields) -- #6434 `059b352` Preserve user-passed CXXFLAGS with --enable-debug (Gavin Andresen) -- #6501 `fee6554` Misc build fixes (Cory Fields) -- #6600 `ef4945f` Include bitcoin-tx binary on Debian/Ubuntu (Zak Wilcox) -- #6619 `4862708` depends: bump miniupnpc and ccache (Michael Ford) -- #6801 `ae69a75` [depends] Latest config.guess and config.sub (Michael Ford) -- #6938 `193f7b5` build: If both Qt4 and Qt5 are installed, use Qt5 (Wladimir J. van der Laan) -- #7092 `348b281` build: Set osx permissions in the dmg to make Gatekeeper happy (Cory Fields) -- #6980 `eccd671` [Depends] Bump Boost, miniupnpc, ccache & zeromq (Michael Ford) -- #7424 `aa26ee0` Add security/export checks to gitian and fix current failures (Cory Fields) - ### Wallet -- #6183 `87550ee` Fix off-by-one error w/ nLockTime in the wallet (Peter Todd) -- #6057 `ac5476e` re-enable wallet in autoprune (Jonas Schnelli) -- #6356 `9e6c33b` Delay initial pruning until after wallet init (Adam Weiss) -- #6088 `91389e5` fundrawtransaction (Matt Corallo) -- #6415 `ddd8d80` Implement watchonly support in fundrawtransaction (Matt Corallo) -- #6567 `0f0f323` Fix crash when mining with empty keypool. (Daniel Kraft) -- #6688 `4939eab` Fix locking in GetTransaction. (Alex Morcos) -- #6645 `4dbd43e` Enable wallet key imports without rescan in pruned mode. (Gregory Maxwell) -- #6550 `5b77244` Do not store Merkle branches in the wallet. (Pieter Wuille) -- #5924 `12a7712` Clean up change computation in CreateTransaction. (Daniel Kraft) -- #6906 `48b5b84` Reject invalid pubkeys when reading ckey items from the wallet. (Gregory Maxwell) -- #7010 `e0a5ef8` Fix fundrawtransaction handling of includeWatching (Peter Todd) -- #6851 `616d61b` Optimisation: Store transaction list order in memory rather than compute it every need (Luke-Jr) -- #6134 `e92377f` Improve usage of fee estimation code (Alex Morcos) -- #7103 `a775182` [wallet, rpc tests] Fix settxfee, paytxfee (MarcoFalke) -- #7105 `30c2d8c` Keep track of explicit wallet conflicts instead of using mempool (Pieter Wuille) -- #7096 `9490bd7` [Wallet] Improve minimum absolute fee GUI options (Jonas Schnelli) -- #6216 `83f06ca` Take the training wheels off anti-fee-sniping (Peter Todd) -- #4906 `96e8d12` Issue#1643: Coinselection prunes extraneous inputs from ApproximateBestSubset (Murch) -- #7200 `06c6a58` Checks for null data transaction before issuing error to debug.log (Andy Craze) -- #7296 `a36d79b` Add sane fallback for fee estimation (Alex Morcos) -- #7293 `ff9b610` Add regression test for vValue sort order (MarcoFalke) -- #7306 `4707797` Make sure conflicted wallet tx's update balances (Alex Morcos) -- #7381 `621bbd8` [walletdb] Fix syntax error in key parser (MarcoFalke) -- #7491 `00ec73e` wallet: Ignore MarkConflict if block hash is not known (Wladimir J. van der Laan) -- #7502 `1329963` Update the wallet best block marker before pruning (Pieter Wuille) - ### GUI -- #6217 `c57e12a` disconnect peers from peers tab via context menu (Diapolo) -- #6209 `ab0ec67` extend rpc console peers tab (Diapolo) -- #6484 `1369d69` use CHashWriter also in SignVerifyMessageDialog (Pavel Vasin) -- #6487 `9848d42` Introduce PlatformStyle (Wladimir J. van der Laan) -- #6505 `100c9d3` cleanup icons (MarcoFalke) -- #4587 `0c465f5` allow users to set -onion via GUI (Diapolo) -- #6529 `c0f66ce` show client user agent in debug window (Diapolo) -- #6594 `878ea69` Disallow duplicate windows. (Casey Rodarmor) -- #5665 `6f55cdd` add verifySize() function to PaymentServer (Diapolo) -- #6317 `ca5e2a1` minor optimisations in peertablemodel (Diapolo) -- #6315 `e59d2a8` allow banning and unbanning over UI->peers table (Jonas Schnelli) -- #6653 `e04b2fa` Pop debug window in foreground when opened twice (MarcoFalke) -- #6864 `c702521` Use monospace font (MarcoFalke) -- #6887 `3694b74` Update coin control and smartfee labels (MarcoFalke) -- #7000 `814697c` add shortcurts for debug-/console-window (Jonas Schnelli) -- #6951 `03403d8` Use maxTxFee instead of 10000000 (MarcoFalke) -- #7051 `a190777` ui: Add "Copy raw transaction data" to transaction list context menu (Wladimir J. van der Laan) -- #6979 `776848a` simple mempool info in debug window (Jonas Schnelli) -- #7006 `26af1ac` add startup option to reset Qt settings (Jonas Schnelli) -- #6780 `2a94cd6` Call init's parameter interaction before we create the UI options model (Jonas Schnelli) -- #7112 `96b8025` reduce cs_main locks during tip update, more fluently update UI (Jonas Schnelli) -- #7206 `f43c2f9` Add "NODE_BLOOM" to guiutil so that peers don't get UNKNOWN[4] (Matt Corallo) -- #7282 `5cadf3e` fix coincontrol update issue when deleting a send coins entry (Jonas Schnelli) -- #7319 `1320300` Intro: Display required space (Jonas Schnelli) -- #7318 `9265e89` quickfix for RPC timer interface problem (Jonas Schnelli) -- #7327 `b16b5bc` [Wallet] Transaction View: LastMonth calculation fixed (crowning-) -- #7364 `7726c48` [qt] Windows: Make rpcconsole monospace font larger (MarcoFalke) -- #7384 `294f432` [qt] Peertable: Increase SUBVERSION_COLUMN_WIDTH (MarcoFalke) - ### Tests and QA -- #6305 `9005c91` build: comparison tool swap (Cory Fields) -- #6318 `e307e13` build: comparison tool NPE fix (Cory Fields) -- #6337 `0564c5b` Testing infrastructure: mocktime fixes (Gavin Andresen) -- #6350 `60abba1` add unit tests for the decodescript rpc (mruddy) -- #5881 `3203a08` Fix and improve txn_doublespend.py test (Tom Harding) -- #6390 `6a73d66` tests: Fix bitcoin-tx signing test case (Wladimir J. van der Laan) -- #6368 `7fc25c2` CLTV: Add more tests to improve coverage (Esteban Ordano) -- #6414 `5121c68` Fix intermittent test failure, reduce test time (Tom Harding) -- #6417 `44fa82d` [QA] fix possible reorg issue in (fund)rawtransaction(s).py RPC test (Jonas Schnelli) -- #6398 `3d9362d` rpc: Remove chain-specific RequireRPCPassword (Wladimir J. van der Laan) -- #6428 `bb59e78` tests: Remove old sh-based test framework (Wladimir J. van der Laan) -- #5515 `d946e9a` RFC: Assert on probable deadlocks if the second lock isnt try_lock (Matt Corallo) -- #6287 `d2464df` Clang lock debug (Cory Fields) -- #6465 `410fd74` Don't share objects between TestInstances (Casey Rodarmor) -- #6534 `6c1c7fd` Fix test locking issues and un-revert the probable-deadlines assertions commit (Cory Fields) -- #6509 `bb4faee` Fix race condition on test node shutdown (Casey Rodarmor) -- #6523 `561f8af` Add p2p-fullblocktest.py (Casey Rodarmor) -- #6590 `981fd92` Fix stale socket rebinding and re-enable python tests for Windows (Cory Fields) -- #6730 `cb4d6d0` build: Remove dependency of bitcoin-cli on secp256k1 (Wladimir J. van der Laan) -- #6616 `5ab5dca` Regression Tests: Migrated rpc-tests.sh to all Python rpc-tests.py (Peter Tschipper) -- #6720 `d479311` Creates unittests for addrman, makes addrman more testable. (Ethan Heilman) -- #6853 `c834f56` Added fPowNoRetargeting field to Consensus::Params (Eric Lombrozo) -- #6827 `87e5539` [rpc-tests] Check return code (MarcoFalke) -- #6848 `f2c869a` Add DERSIG transaction test cases (Ross Nicoll) -- #6813 `5242bb3` Support gathering code coverage data for RPC tests with lcov (dexX7) -- #6888 `c8322ff` Clear strMiscWarning before running PartitionAlert (Eric Lombrozo) -- #6894 `2675276` [Tests] Fix BIP65 p2p test (Suhas Daftuar) -- #6863 `725539e` [Test Suite] Fix test for null tx input (Daniel Kraft) -- #6926 `a6d0d62` tests: Initialize networking on windows (Wladimir J. van der Laan) -- #6822 `9fa54a1` [tests] Be more strict checking dust (MarcoFalke) -- #6804 `5fcc14e` [tests] Add basic coverage reporting for RPC tests (James O'Beirne) -- #7045 `72dccfc` Bugfix: Use unique autostart filenames on Linux for testnet/regtest (Luke-Jr) -- #7095 `d8368a0` Replace scriptnum_test's normative ScriptNum implementation (Wladimir J. van der Laan) -- #7063 `6abf6eb` [Tests] Add prioritisetransaction RPC test (Suhas Daftuar) -- #7137 `16f4a6e` Tests: Explicitly set chain limits in replace-by-fee test (Suhas Daftuar) -- #7216 `9572e49` Removed offline testnet DNSSeed 'alexykot.me'. (tnull) -- #7209 `f3ad812` test: don't override BITCOIND and BITCOINCLI if they're set (Wladimir J. van der Laan) -- #7226 `301f16a` Tests: Add more tests to p2p-fullblocktest (Suhas Daftuar) -- #7153 `9ef7c54` [Tests] Add mempool_limit.py test (Jonas Schnelli) -- #7170 `453c567` tests: Disable Tor interaction (Wladimir J. van der Laan) -- #7229 `1ed938b` [qa] wallet: Check if maintenance changes the balance (MarcoFalke) -- #7308 `d513405` [Tests] Eliminate intermittent failures in sendheaders.py (Suhas Daftuar) -- #7468 `947c4ff` [rpc-tests] Change solve() to use rehash (Brad Andrews) - ### Miscellaneous -- #6213 `e54ff2f` [init] add -blockversion help and extend -upnp help (Diapolo) -- #5975 `1fea667` Consensus: Decouple ContextualCheckBlockHeader from checkpoints (Jorge Timón) -- #6061 `eba2f06` Separate Consensus::CheckTxInputs and GetSpendHeight in CheckInputs (Jorge Timón) -- #5994 `786ed11` detach wallet from miner (Jonas Schnelli) -- #6387 `11576a5` [bitcoin-cli] improve error output (Jonas Schnelli) -- #6401 `6db53b4` Add BITCOIND_SIGTERM_TIMEOUT to OpenRC init scripts (Florian Schmaus) -- #6430 `b01981e` doc: add documentation for shared library libbitcoinconsensus (Braydon Fuller) -- #6372 `dcc495e` Update Linearize tool to support Windows paths; fix variable scope; update README and example configuration (Paul Georgiou) -- #6453 `8fe5cce` Separate core memory usage computation in core_memusage.h (Pieter Wuille) -- #6149 `633fe10` Buffer log messages and explicitly open logs (Adam Weiss) -- #6488 `7cbed7f` Avoid leaking file descriptors in RegisterLoad (Casey Rodarmor) -- #6497 `a2bf40d` Make sure LogPrintf strings are line-terminated (Wladimir J. van der Laan) -- #6504 `b6fee6b` Rationalize currency unit to "BTC" (Ross Nicoll) -- #6507 `9bb4dd8` Removed contrib/bitrpc (Casey Rodarmor) -- #6527 `41d650f` Use unique name for AlertNotify tempfile (Casey Rodarmor) -- #6561 `e08a7d9` limitedmap fixes and tests (Casey Rodarmor) -- #6565 `a6f2aff` Make sure we re-acquire lock if a task throws (Casey Rodarmor) -- #6599 `f4d88c4` Make sure LogPrint strings are line-terminated (Ross Nicoll) -- #6630 `195942d` Replace boost::reverse_lock with our own (Casey Rodarmor) -- #6103 `13b8282` Add ZeroMQ notifications (João Barbosa) -- #6692 `d5d1d2e` devtools: don't push if signing fails in github-merge (Wladimir J. van der Laan) -- #6728 `2b0567b` timedata: Prevent warning overkill (Wladimir J. van der Laan) -- #6713 `f6ce59c` SanitizeString: Allow hypen char (MarcoFalke) -- #5987 `4899a04` Bugfix: Fix testnet-in-a-box use case (Luke-Jr) -- #6733 `b7d78fd` Simple benchmarking framework (Gavin Andresen) -- #6854 `a092970` devtools: Add security-check.py (Wladimir J. van der Laan) -- #6790 `fa1d252` devtools: add clang-format.py (MarcoFalke) -- #7114 `f3d0fdd` util: Don't set strMiscWarning on every exception (Wladimir J. van der Laan) -- #7078 `93e0514` uint256::GetCheapHash bigendian compatibility (arowser) -- #7094 `34e02e0` Assert now > 0 in GetTime GetTimeMillis GetTimeMicros (Patrick Strateman) - Credits ======= Thanks to everyone who directly contributed to this release: -- accraze -- Adam Weiss -- Alex Morcos -- Alex van der Peet -- AlSzacrel -- Altoidnerd -- Andriy Voskoboinyk -- antonio-fr -- Arne Brutschy -- Ashley Holman -- Bob McElrath -- Braydon Fuller -- BtcDrak -- Casey Rodarmor -- centaur1 -- Chris Kleeschulte -- Christian Decker -- Cory Fields -- daniel -- Daniel Cousens -- Daniel Kraft -- David Hill -- dexX7 -- Diego Viola -- Elias Rohrer -- Eric Lombrozo -- Erik Mossberg -- Esteban Ordano -- EthanHeilman -- Florian Schmaus -- Forrest Voight -- Gavin Andresen -- Gregory Maxwell -- Gregory Sanders / instagibbs -- Ian T -- Irving Ruan -- Jacob Welsh -- James O'Beirne -- Jeff Garzik -- Johnathan Corgan -- Jonas Schnelli -- Jonathan Cross -- João Barbosa -- Jorge Timón -- Josh Lehan -- J Ross Nicoll -- kazcw -- Kevin Cooper -- lpescher -- Luke Dashjr -- Marco -- MarcoFalke -- Mark Friedenbach -- Matt -- Matt Bogosian -- Matt Corallo -- Matt Quinn -- Micha -- Michael -- Michael Ford / fanquake -- Midnight Magic -- Mitchell Cash -- mrbandrews -- mruddy -- Nick -- Patrick Strateman -- Paul Georgiou -- Paul Rabahy -- Pavel Janík / paveljanik -- Pavel Vasin -- Pavol Rusnak -- Peter Josling -- Peter Todd -- Philip Kaufmann -- Pieter Wuille -- ptschip -- randy-waterhouse -- rion -- Ross Nicoll -- Ryan Havar -- Shaul Kfir -- Simon Males -- Stephen -- Suhas Daftuar -- tailsjoin -- Thomas Kerin -- Tom Harding -- tulip -- unsystemizer -- Veres Lajos -- Wladimir J. van der Laan -- xor-freenet -- Zak Wilcox -- zathras-crypto As well as everyone that helped translating on [Transifex](https://www.transifex.com/projects/p/bitcoin/). |