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(note: this is a temporary file, to be added-to by anybody, and moved to
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release-notes at release time)
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Bitcoin Core version *version* is now available from:
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<https://bitcoin.org/bin/bitcoin-core-*version*/>
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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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Notable changes
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===============
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Example item
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----------------
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bitcoin-cli: arguments privacy
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--------------------------------
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The RPC command line client gained a new argument, `-stdin`
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to read extra arguments from standard input, one per line until EOF/Ctrl-D.
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For example:
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$ echo -e "mysecretcode\n120" | src/bitcoin-cli -stdin walletpassphrase
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It is recommended to use this for sensitive information such as wallet
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passphrases, as command-line arguments can usually be read from the process
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table by any user on the system.
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RPC low-level changes
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----------------------
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- `gettxoutsetinfo` UTXO hash (`hash_serialized`) has changed. There was a divergence between
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32-bit and 64-bit platforms, and the txids were missing in the hashed data. This has been
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fixed, but this means that the output will be different than from previous versions.
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0.13.0 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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### RPC and REST
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Asm script outputs now contain OP_CHECKLOCKTIMEVERIFY in place of OP_NOP2
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-------------------------------------------------------------------------
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OP_NOP2 has been renamed to OP_CHECKLOCKTIMEVERIFY by [BIP
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65](https://github.com/bitcoin/bips/blob/master/bip-0065.mediawiki)
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The following outputs are affected by this change:
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- RPC `getrawtransaction` (in verbose mode)
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- RPC `decoderawtransaction`
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- RPC `decodescript`
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- REST `/rest/tx/` (JSON format)
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- REST `/rest/block/` (JSON format when including extended tx details)
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- `bitcoin-tx -json`
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### ZMQ
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Each ZMQ notification now contains an up-counting sequence number that allows
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listeners to detect lost notifications.
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The sequence number is always the last element in a multi-part ZMQ notification and
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therefore backward compatible.
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Each message type has its own counter.
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(https://github.com/bitcoin/bitcoin/pull/7762)
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### Configuration and command-line options
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### Block and transaction handling
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### P2P protocol and network code
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The p2p alert system has been removed in #7692 and the 'alert' message is no longer supported.
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Fee filtering of invs (BIP 133)
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------------------------------------
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The optional new p2p message "feefilter" is implemented and the protocol
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version is bumped to 70013. Upon receiving a feefilter message from a peer,
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a node will not send invs for any transactions which do not meet the filter
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feerate. [BIP 133](https://github.com/bitcoin/bips/blob/master/bip-0133.mediawiki)
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### Validation
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### Build system
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### Wallet
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### GUI
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### Tests
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### Miscellaneous
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