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Bitcoin Core version 0.14.1 is now available from:
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<https://bitcoin.org/bin/bitcoin-core-0.14.1/>
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This is a new minor version release, including various bugfixes and
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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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Bitcoin Core is extensively tested on multiple operating systems using
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the Linux kernel, macOS 10.8+, and Windows Vista and later.
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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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No attempt is made to prevent installing or running the software on Windows XP, you
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can still do so at your own risk but be aware that there are known instabilities and issues.
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Please do not report issues about Windows XP to the issue tracker.
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Bitcoin Core should also work on most other Unix-like systems but is not
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frequently tested on them.
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Notable changes
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===============
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RPC changes
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-----------
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- The first positional argument of `createrawtransaction` was renamed from
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`transactions` to `inputs`.
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- The argument of `disconnectnode` was renamed from `node` to `address`.
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These interface changes break compatibility with 0.14.0, when the named
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arguments functionality, introduced in 0.14.0, is used. Client software
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using these calls with named arguments needs to be updated.
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Mining
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------
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In previous versions, getblocktemplate required segwit support from downstream
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clients/miners once the feature activated on the network. In this version, it
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now supports non-segwit clients even after activation, by removing all segwit
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transactions from the returned block template. This allows non-segwit miners to
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continue functioning correctly even after segwit has activated.
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Due to the limitations in previous versions, getblocktemplate also recommended
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non-segwit clients to not signal for the segwit version-bit. Since this is no
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longer an issue, getblocktemplate now always recommends signalling segwit for
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all miners. This is safe because ability to enforce the rule is the only
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required criteria for safe activation, not actually producing segwit-enabled
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blocks.
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UTXO memory accounting
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----------------------
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Memory usage for the UTXO cache is being calculated more accurately, so that
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the configured limit (`-dbcache`) will be respected when memory usage peaks
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during cache flushes. The memory accounting in prior releases is estimated to
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only account for half the actual peak utilization.
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The default `-dbcache` has also been changed in this release to 450MiB. Users
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who currently set `-dbcache` to a high value (e.g. to keep the UTXO more fully
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cached in memory) should consider increasing this setting in order to achieve
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the same cache performance as prior releases. Users on low-memory systems
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(such as systems with 1GB or less) should consider specifying a lower value for
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this parameter.
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Additional information relating to running on low-memory systems can be found
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here:
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[reducing-bitcoind-memory-usage.md](https://gist.github.com/laanwj/efe29c7661ce9b6620a7).
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0.14.1 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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### RPC and other APIs
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- #10084 `142fbb2` Rename first named arg of createrawtransaction (MarcoFalke)
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- #10139 `f15268d` Remove auth cookie on shutdown (practicalswift)
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- #10146 `2fea10a` Better error handling for submitblock (rawodb, gmaxwell)
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- #10144 `d947afc` Prioritisetransaction wasn't always updating ancestor fee (sdaftuar)
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- #10204 `3c79602` Rename disconnectnode argument (jnewbery)
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### Block and transaction handling
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- #10126 `0b5e162` Compensate for memory peak at flush time (sipa)
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- #9912 `fc3d7db` Optimize GetWitnessHash() for non-segwit transactions (sdaftuar)
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- #10133 `ab864d3` Clean up calculations of pcoinsTip memory usage (morcos)
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### P2P protocol and network code
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- #9953/#10013 `d2548a4` Fix shutdown hang with >= 8 -addnodes set (TheBlueMatt)
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- #10176 `30fa231` net: gracefully handle NodeId wrapping (theuni)
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### Build system
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- #9973 `e9611d1` depends: fix zlib build on osx (theuni)
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### GUI
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- #10060 `ddc2dd1` Ensure an item exists on the rpcconsole stack before adding (achow101)
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### Mining
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- #9955/#10006 `569596c` Don't require segwit in getblocktemplate for segwit signalling or mining (sdaftuar)
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- #9959/#10127 `b5c3440` Prevent slowdown in CreateNewBlock on large mempools (sdaftuar)
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### Tests and QA
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- #10157 `55f641c` Fix the `mempool_packages.py` test (sdaftuar)
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### Miscellaneous
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- #10037 `4d8e660` Trivial: Fix typo in help getrawtransaction RPC (keystrike)
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- #10120 `e4c9a90` util: Work around (virtual) memory exhaustion on 32-bit w/ glibc (laanwj)
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- #10130 `ecc5232` bitcoin-tx input verification (awemany, jnewbery)
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Credits
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=======
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Thanks to everyone who directly contributed to this release:
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- Alex Morcos
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- Andrew Chow
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- Awemany
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- Cory Fields
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- Gregory Maxwell
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- James Evans
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- John Newbery
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- MarcoFalke
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- Matt Corallo
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- Pieter Wuille
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- practicalswift
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- rawodb
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- Suhas Daftuar
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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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