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Bitcoin Core version 0.13.1 is now available from:
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<https://bitcoin.org/bin/bitcoin-core-0.13.1/>
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This is a new major version release, including new features, various bugfixes
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and performance improvements, as well as updated translations.
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Please report bugs using the issue tracker at github:
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<https://github.com/bitcoin/bitcoin/issues>
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To receive security and update notifications, please subscribe to:
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<https://bitcoincore.org/en/list/announcements/join/>
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Compatibility
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==============
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Microsoft ended support for Windows XP on [April 8th, 2014](https://www.microsoft.com/en-us/WindowsForBusiness/end-of-xp-support),
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an OS initially released in 2001. This means that not even critical security
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updates will be released anymore. Without security updates, using a bitcoin
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wallet on a XP machine is irresponsible at least.
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In addition to that, with 0.12.x there have been varied reports of Bitcoin Core
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randomly crashing on Windows XP. It is [not clear](https://github.com/bitcoin/bitcoin/issues/7681#issuecomment-217439891)
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what the source of these crashes is, but it is likely that upstream
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libraries such as Qt are no longer being tested on XP.
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We do not have time nor resources to provide support for an OS that is
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end-of-life. From 0.13.0 on, Windows XP is no longer supported. Users are
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suggested to upgrade to a newer version of Windows, or install an alternative OS
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that is supported.
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No attempt is made to prevent installing or running the software on Windows XP,
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you can still do so at your own risk, but do not expect it to work: do not
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report issues about Windows XP to the issue tracker.
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Notable changes
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===============
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Segregated witness soft fork
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----------------------------
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Segregated witness (segwit) is a soft fork that, if activated, will
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allow transaction-producing software to separate (segregate) transaction
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signatures (witnesses) from the rest of the data in a transaction, and
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to allow miners to place those witnesses outside of the traditional
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block structure. This provides two immediate benefits:
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- **Elimination of malleability:** Segregating the witness allows both
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existing software and upgraded software that receives transactions to
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calculate the transaction identifier (txid) of segwit-using
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transactions without referencing the witness. This solves all known
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cases of unwanted third-party transaction malleability, which is a
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problem that makes programming Bitcoin wallet software more difficult
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and which seriously complicates the design of smart contracts for
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Bitcoin.
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- **Capacity increase:** Moving witness data outside of the traditional
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block structure (but still inside a new-style block structure) means
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new-style blocks can hold more data than older-style blocks, allowing
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a modest increase to the amount of transaction data that can fit in a
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block.
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Segwit also simplifies the ability to add new features to Bitcoin and
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improves the efficiency of full nodes, which will help provide long-term
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benefits to Bitcoin users.
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Activation for the segwit soft fork is being managed using BIP9
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versionbits. Segwit's version bit is bit 1, and nodes will begin
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tracking which blocks signal support for segwit at the beginning of the
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first retarget period after segwit's start date of 15 November 2016. If
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95% of blocks within a 2,016-block retarget period (about two weeks)
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signal support for segwit, the soft fork will be locked in. After
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another 2,016 blocks, segwit will activate.
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For more information about segwit, please see the [segwit FAQ][], the
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[segwit wallet developers guide][] or BIPs [141][BIP141], [143][BIP143],
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[144][BIP144], and [145][BIP145]. If you're a miner or mining pool
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operator, please see the [versionbits FAQ][] for information about
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signaling support for a soft fork.
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[Segwit FAQ]: https://bitcoincore.org/en/2016/01/26/segwit-benefits/
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[segwit wallet developers guide]: https://bitcoincore.org/en/segwit_wallet_dev/
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[BIP141]: https://github.com/bitcoin/bips/blob/master/bip-0141.mediawiki
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[BIP143]: https://github.com/bitcoin/bips/blob/master/bip-0143.mediawiki
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[BIP144]: https://github.com/bitcoin/bips/blob/master/bip-0144.mediawiki
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[BIP145]: https://github.com/bitcoin/bips/blob/master/bip-0145.mediawiki
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|
[versionbits FAQ]: https://bitcoincore.org/en/2016/06/08/version-bits-miners-faq/
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Null dummy soft fork
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-------------------
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|
Combined with the segwit soft fork is a soft fork that turns a
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|
|
long-existing network relay policy into a consensus rule. The
|
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|
|
`OP_CHECKMULTISIG` and `OP_CHECKMULTISIGVERIFY` opcodes consume an extra
|
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|
|
stack element ("dummy element") after signature validation. The dummy
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|
|
element is not inspected in any manner, and could be replaced by any
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|
|
|
value without invalidating the script.
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Because any value can be used for this dummy element, it's possible for
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|
|
a third-party to insert data into other people's transactions, changing
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|
|
the transaction's txid (called transaction malleability) and possibly
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|
|
causing other problems.
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|
|
Since Bitcoin Core 0.10.0, nodes have defaulted to only relaying and
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|
mining transactions whose dummy element was a null value (0x00, also
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|
|
called OP_0). The null dummy soft fork turns this relay rule into a
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|
|
consensus rule both for non-segwit transactions and segwit transactions,
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|
|
so that this method of mutating transactions is permanently eliminated
|
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|
|
from the network.
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Signaling for the null dummy soft fork is done by signaling support
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|
for segwit, and the null dummy soft fork will activate at the same time
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|
|
as segwit.
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|
For more information, please see [BIP147][].
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|
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[BIP147]: https://github.com/bitcoin/bips/blob/master/bip-0147.mediawiki
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|
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|
|
Low-level RPC changes
|
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|
|
|
---------------------
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|
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|
|
|
|
|
- `importprunedfunds` only accepts two required arguments. Some versions accept
|
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|
|
an optional third arg, which was always ignored. Make sure to never pass more
|
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|
|
than two arguments.
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|
|
0.13.1 Change log
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|
|
=================
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|
Detailed release notes follow. This overview includes changes that affect
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|
|
behavior, not code moves, refactors and string updates. For convenience in locating
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|
|
the code changes and accompanying discussion, both the pull request and
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|
|
git merge commit are mentioned.
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### Consensus
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- #8636 `9dfa0c8` Implement NULLDUMMY softfork (BIP147) (jl2012)
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|
- #8848 `7a34a46` Add NULLDUMMY verify flag in bitcoinconsensus.h (jl2012)
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|
- #8937 `8b66659` Define start and end time for segwit deployment (sipa)
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|
### RPC and other APIs
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|
- #8581 `526d2b0` Drop misleading option in importprunedfunds (MarcoFalke)
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|
- #8699 `a5ec248` Remove createwitnessaddress RPC command (jl2012)
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|
- #8780 `794b007` Deprecate getinfo (MarcoFalke)
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|
|
- #8832 `83ad563` Throw JSONRPCError when utxo set can not be read (MarcoFalke)
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|
- #8884 `b987348` getblockchaininfo help: pruneheight is the lowest, not highest, block (luke-jr)
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|
### Block and transaction handling
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|
- #8611 `a9429ca` Reduce default number of blocks to check at startup (sipa)
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|
- #8634 `3e80ab7` Add policy: null signature for failed CHECK(MULTI)SIG (jl2012)
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|
|
- #8525 `1672225` Do not store witness txn in rejection cache (sipa)
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|
|
- #8499 `9777fe1` Add several policy limits and disable uncompressed keys for segwit scripts (jl2012)
|
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|
|
- #8526 `0027672` Make non-minimal OP_IF/NOTIF argument non-standard for P2WSH (jl2012)
|
|
|
|
|
- #8524 `b8c79a0` Precompute sighashes (sipa)
|
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|
|
|
- #8651 `b8c79a0` Predeclare PrecomputedTransactionData as struct (sipa)
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|
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|
|
### P2P protocol and network code
|
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|
|
- #8740 `42ea51a` No longer send local address in addrMe (laanwj)
|
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|
|
- #8427 `69d1cd2` Ignore `notfound` P2P messages (laanwj)
|
|
|
|
|
- #8573 `4f84082` Set jonasschnellis dns-seeder filter flag (jonasschnelli)
|
|
|
|
|
- #8712 `23feab1` Remove maxuploadtargets recommended minimum (jonasschnelli)
|
|
|
|
|
- #8862 `7ae6242` Fix a few cases where messages were sent after requested disconnect (theuni)
|
|
|
|
|
- #8393 `fe1975a` Support for compact blocks together with segwit (sipa)
|
|
|
|
|
- #8282 `2611ad7` Feeler connections to increase online addrs in the tried table (EthanHeilman)
|
|
|
|
|
- #8612 `2215c22` Check for compatibility with download in FindNextBlocksToDownload (sipa)
|
|
|
|
|
- #8606 `bbf379b` Fix some locks (sipa)
|
|
|
|
|
- #8594 `ab295bb` Do not add random inbound peers to addrman (gmaxwell)
|
|
|
|
|
- #8940 `5b4192b` Add x9 service bit support to dnsseed.bluematt.me, seed.bitcoinstats.com (TheBlueMatt, cdecker)
|
|
|
|
|
|
|
|
|
|
### Build system
|
|
|
|
|
- #8293 `fa5b249` Allow building libbitcoinconsensus without any univalue (luke-jr)
|
|
|
|
|
- #8492 `8b0bdd3` Allow building bench_bitcoin by itself (luke-jr)
|
|
|
|
|
- #8563 `147003c` Add configure check for -latomic (ajtowns)
|
|
|
|
|
- #8626 `ea51b0f` Berkeley DB v6 compatibility fix (netsafe)
|
|
|
|
|
- #8520 `75f2065` Remove check for `openssl/ec.h` (laanwj)
|
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|
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|
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|
|
### GUI
|
|
|
|
|
- #8481 `d9f0d4e` Fix minimize and close bugs (adlawren)
|
|
|
|
|
- #8487 `a37cec5` Persist the datadir after option reset (achow101)
|
|
|
|
|
- #8697 `41fd852` Fix op order to append first alert (rodasmith)
|
|
|
|
|
- #8678 `8e03382` Fix UI bug that could result in paying unexpected fee (jonasschnelli)
|
|
|
|
|
- #8911 `7634d8e` Translate all files, even if wallet disabled (laanwj)
|
|
|
|
|
- #8540 `1db3352` Fix random segfault when closing "Choose data directory" dialog (laanwj)
|
|
|
|
|
- #7579 `f1c0d78` Show network/chain errors in the GUI (jonasschnelli)
|
|
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|
|
|
|
|
|
|
### Wallet
|
|
|
|
|
- #8443 `464dedd` Trivial cleanup of HD wallet changes (jonasschnelli)
|
|
|
|
|
- #8539 `cb07f19` CDB: fix debug output (crowning-)
|
|
|
|
|
- #8664 `091cdeb` Fix segwit-related wallet bug (sdaftuar)
|
|
|
|
|
- #8693 `c6a6291` Add witness address to address book (instagibbs)
|
|
|
|
|
- #8765 `6288659` Remove "unused" ThreadFlushWalletDB from removeprunedfunds (jonasschnelli)
|
|
|
|
|
|
|
|
|
|
### Tests and QA
|
|
|
|
|
- #8713 `ae8c7df` create_cache: Delete temp dir when done (MarcoFalke)
|
|
|
|
|
- #8716 `e34374e` Check legacy wallet as well (MarcoFalke)
|
|
|
|
|
- #8750 `d6ebe13` Refactor RPCTestHandler to prevent TimeoutExpired (MarcoFalke)
|
|
|
|
|
- #8652 `63462c2` remove root test directory for RPC tests (yurizhykin)
|
|
|
|
|
- #8724 `da94272` walletbackup: Sync blocks inside the loop (MarcoFalke)
|
|
|
|
|
- #8400 `bea02dc` enable rpcbind_test (yurizhykin)
|
|
|
|
|
- #8417 `f70be14` Add walletdump RPC test (including HD- & encryption-tests) (jonasschnelli)
|
|
|
|
|
- #8419 `a7aa3cc` Enable size accounting in mining unit tests (sdaftuar)
|
|
|
|
|
- #8442 `8bb1efd` Rework hd wallet dump test (MarcoFalke)
|
|
|
|
|
- #8528 `3606b6b` Update p2p-segwit.py to reflect correct behavior (instagibbs)
|
|
|
|
|
- #8531 `a27cdd8` abandonconflict: Use assert_equal (MarcoFalke)
|
|
|
|
|
- #8667 `6b07362` Fix SIGHASH_SINGLE bug in test_framework SignatureHash (jl2012)
|
|
|
|
|
- #8673 `03b0196` Fix obvious assignment/equality error in test (JeremyRubin)
|
|
|
|
|
- #8739 `cef633c` Fix broken sendcmpct test in p2p-compactblocks.py (sdaftuar)
|
|
|
|
|
- #8418 `ff893aa` Add tests for compact blocks (sdaftuar)
|
|
|
|
|
- #8803 `375437c` Ping regularly in p2p-segwit.py to keep connection alive (jl2012)
|
|
|
|
|
- #8827 `9bbe66e` Split up slow RPC calls to avoid pruning test timeouts (sdaftuar)
|
|
|
|
|
- #8829 `2a8bca4` Add bitcoin-tx JSON tests (jnewbery)
|
|
|
|
|
- #8834 `1dd1783` blockstore: Switch to dumb dbm (MarcoFalke)
|
|
|
|
|
- #8835 `d87227d` nulldummy.py: Don't run unused code (MarcoFalke)
|
|
|
|
|
- #8836 `eb18cc1` bitcoin-util-test.py should fail if the output file is empty (jnewbery)
|
|
|
|
|
- #8839 `31ab2f8` Avoid ConnectionResetErrors during RPC tests (laanwj)
|
|
|
|
|
- #8840 `cbc3fe5` Explicitly set encoding to utf8 when opening text files (laanwj)
|
|
|
|
|
- #8841 `3e4abb5` Fix nulldummy test (jl2012)
|
|
|
|
|
- #8854 `624a007` Fix race condition in p2p-compactblocks test (sdaftuar)
|
|
|
|
|
- #8857 `1f60d45` mininode: Only allow named args in wait_until (MarcoFalke)
|
|
|
|
|
- #8860 `0bee740` util: Move wait_bitcoinds() into stop_nodes() (MarcoFalke)
|
|
|
|
|
- #8882 `b73f065` Fix race conditions in p2p-compactblocks.py and sendheaders.py (sdaftuar)
|
|
|
|
|
- #8904 `cc6f551` Fix compact block shortids for a test case (dagurval)
|
|
|
|
|
|
|
|
|
|
### Documentation
|
|
|
|
|
- #8754 `0e2c6bd` Target protobuf 2.6 in OS X build notes. (fanquake)
|
|
|
|
|
- #8461 `b17a3f9` Document return value of networkhashps for getmininginfo RPC endpoint (jlopp)
|
|
|
|
|
- #8512 `156e305` Corrected JSON typo on setban of net.cpp (sevastos)
|
|
|
|
|
- #8683 `8a7d7ff` Fix incorrect file name bitcoin.qrc (bitcoinsSG)
|
|
|
|
|
- #8891 `5e0dd9e` Update bips.md for Segregated Witness (fanquake)
|
|
|
|
|
- #8545 `863ae74` Update git-subtree-check.sh README (MarcoFalke)
|
|
|
|
|
- #8607 `486650a` Fix doxygen off-by-one comments, fix typos (MarcoFalke)
|
|
|
|
|
- #8560 `c493f43` Fix two VarInt examples in serialize.h (cbarcenas)
|
|
|
|
|
- #8737 `084cae9` UndoReadFromDisk works on undo files (rev), not on block files (paveljanik)
|
|
|
|
|
- #8625 `0a35573` Clarify statement about parallel jobs in rpc-tests.py (isle2983)
|
|
|
|
|
- #8624 `0e6d753` build: Mention curl (MarcoFalke)
|
|
|
|
|
- #8604 `b09e13c` build,doc: Update for 0.13.0+ and OpenBSD 5.9 (laanwj)
|
|
|
|
|
- #8939 `06d15fb` Update implemented bips for 0.13.1 (sipa)
|
|
|
|
|
|
|
|
|
|
### Miscellaneous
|
|
|
|
|
- #8742 `d31ac72` Specify Protobuf version 2 in paymentrequest.proto (fanquake)
|
|
|
|
|
- #8414,#8558,#8676,#8700,#8701,#8702 Add missing copyright headers (isle2983, kazcw)
|
|
|
|
|
- #8899 `4ed2627` Fix wake from sleep issue with Boost 1.59.0 (fanquake)
|
|
|
|
|
- #8817 `bcf3806` update bitcoin-tx to output witness data (jnewbery)
|
|
|
|
|
- #8513 `4e5fc31` Fix a type error that would not compile on OSX. (JeremyRubin)
|
|
|
|
|
- #8392 `30eac2d` Fix several node initialization issues (sipa)
|
|
|
|
|
- #8548 `305d8ac` Use `__func__` to get function name for output printing (MarcoFalke)
|
|
|
|
|
- #8291 `a987431` [util] CopyrightHolders: Check for untranslated substitution (MarcoFalke)
|
|
|
|
|
|
|
|
|
|
Credits
|
|
|
|
|
=======
|
|
|
|
|
|
|
|
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Thanks to everyone who directly contributed to this release:
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- adlawren
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- Alexey Vesnin
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- Anders Øyvind Urke-Sætre
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- Andrew Chow
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- Anthony Towns
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- BtcDrak
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- Chris Stewart
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- Christian Barcenas
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- Christian Decker
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- Cory Fields
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- crowning-
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- Dagur Valberg Johannsson
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- Ethan Heilman
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- fanquake
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- Gaurav Rana
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- Gregory Maxwell
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- instagibbs
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- isle2983
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- Jameson Lopp
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- Jeremy Rubin
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- jnewbery
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- Johnson Lau
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- Jonas Schnelli
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- jonnynewbs
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- Justin Camarena
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- Kaz Wesley
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- leijurv
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- Luke Dashjr
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- MarcoFalke
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- Marty Jones
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- Matt Corallo
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- Michael Ford
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- Pavel Janík
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- Pieter Wuille
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- rodasmith
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- Sev
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- Suhas Daftuar
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- whythat
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- Wladimir J. van der Laan
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As well as everyone that helped translating on [Transifex](https://www.transifex.com/projects/p/bitcoin/).
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