1  Bitcoin Core version 0.14.1 is now available from:
  2  
  3    <https://bitcoin.org/bin/bitcoin-core-0.14.1/>
  4  
  5  This is a new minor version release, including various bugfixes and
  6  performance improvements, as well as updated translations.
  7  
  8  Please report bugs using the issue tracker at github:
  9  
 10    <https://github.com/bitcoin/bitcoin/issues>
 11  
 12  To receive security and update notifications, please subscribe to:
 13  
 14    <https://bitcoincore.org/en/list/announcements/join/>
 15  
 16  Compatibility
 17  ==============
 18  
 19  Bitcoin Core is extensively tested on multiple operating systems using
 20  the Linux kernel, macOS 10.8+, and Windows Vista and later.
 21  
 22  Microsoft ended support for Windows XP on [April 8th, 2014](https://www.microsoft.com/en-us/WindowsForBusiness/end-of-xp-support),
 23  No attempt is made to prevent installing or running the software on Windows XP, you
 24  can still do so at your own risk but be aware that there are known instabilities and issues.
 25  Please do not report issues about Windows XP to the issue tracker.
 26  
 27  Bitcoin Core should also work on most other Unix-like systems but is not
 28  frequently tested on them.
 29  
 30  Notable changes
 31  ===============
 32  
 33  RPC changes
 34  -----------
 35  
 36  - The first positional argument of `createrawtransaction` was renamed from
 37    `transactions` to `inputs`.
 38  
 39  - The argument of `disconnectnode` was renamed from `node` to `address`.
 40  
 41  These interface changes break compatibility with 0.14.0, when the named
 42  arguments functionality, introduced in 0.14.0, is used. Client software
 43  using these calls with named arguments needs to be updated.
 44  
 45  Mining
 46  ------
 47  
 48  In previous versions, getblocktemplate required segwit support from downstream
 49  clients/miners once the feature activated on the network. In this version, it
 50  now supports non-segwit clients even after activation, by removing all segwit
 51  transactions from the returned block template. This allows non-segwit miners to
 52  continue functioning correctly even after segwit has activated.
 53  
 54  Due to the limitations in previous versions, getblocktemplate also recommended
 55  non-segwit clients to not signal for the segwit version-bit. Since this is no
 56  longer an issue, getblocktemplate now always recommends signalling segwit for
 57  all miners. This is safe because ability to enforce the rule is the only
 58  required criteria for safe activation, not actually producing segwit-enabled
 59  blocks.
 60  
 61  UTXO memory accounting
 62  ----------------------
 63  
 64  Memory usage for the UTXO cache is being calculated more accurately, so that
 65  the configured limit (`-dbcache`) will be respected when memory usage peaks
 66  during cache flushes.  The memory accounting in prior releases is estimated to
 67  only account for half the actual peak utilization.
 68  
 69  The default `-dbcache` has also been changed in this release to 450MiB.  Users
 70  who currently set `-dbcache` to a high value (e.g. to keep the UTXO more fully
 71  cached in memory) should consider increasing this setting in order to achieve
 72  the same cache performance as prior releases.  Users on low-memory systems
 73  (such as systems with 1GB or less) should consider specifying a lower value for
 74  this parameter.
 75  
 76  Additional information relating to running on low-memory systems can be found
 77  here:
 78  [reducing-bitcoind-memory-usage.md](https://gist.github.com/laanwj/efe29c7661ce9b6620a7).
 79  
 80  0.14.1 Change log
 81  =================
 82  
 83  Detailed release notes follow. This overview includes changes that affect
 84  behavior, not code moves, refactors and string updates. For convenience in locating
 85  the code changes and accompanying discussion, both the pull request and
 86  git merge commit are mentioned.
 87  
 88  ### RPC and other APIs
 89  - #10084 `142fbb2` Rename first named arg of createrawtransaction (MarcoFalke)
 90  - #10139 `f15268d` Remove auth cookie on shutdown (practicalswift)
 91  - #10146 `2fea10a` Better error handling for submitblock (rawodb, gmaxwell)
 92  - #10144 `d947afc` Prioritisetransaction wasn't always updating ancestor fee (sdaftuar)
 93  - #10204 `3c79602` Rename disconnectnode argument (jnewbery)
 94  
 95  ### Block and transaction handling
 96  - #10126 `0b5e162` Compensate for memory peak at flush time (sipa)
 97  - #9912 `fc3d7db` Optimize GetWitnessHash() for non-segwit transactions (sdaftuar)
 98  - #10133 `ab864d3` Clean up calculations of pcoinsTip memory usage (morcos)
 99  
100  ### P2P protocol and network code
101  - #9953/#10013 `d2548a4` Fix shutdown hang with >= 8 -addnodes set (TheBlueMatt)
102  - #10176 `30fa231` net: gracefully handle NodeId wrapping (theuni)
103  
104  ### Build system
105  - #9973 `e9611d1` depends: fix zlib build on osx (theuni)
106  
107  ### GUI
108  - #10060 `ddc2dd1` Ensure an item exists on the rpcconsole stack before adding (achow101)
109  
110  ### Mining
111  - #9955/#10006 `569596c` Don't require segwit in getblocktemplate for segwit signalling or mining (sdaftuar)
112  - #9959/#10127 `b5c3440` Prevent slowdown in CreateNewBlock on large mempools (sdaftuar)
113  
114  ### Tests and QA
115  - #10157 `55f641c` Fix the `mempool_packages.py` test (sdaftuar)
116  
117  ### Miscellaneous
118  - #10037 `4d8e660` Trivial: Fix typo in help getrawtransaction RPC (keystrike)
119  - #10120 `e4c9a90` util: Work around (virtual) memory exhaustion on 32-bit w/ glibc (laanwj)
120  - #10130 `ecc5232` bitcoin-tx input verification (awemany, jnewbery)
121  
122  Credits
123  =======
124  
125  Thanks to everyone who directly contributed to this release:
126  
127  - Alex Morcos
128  - Andrew Chow
129  - Awemany
130  - Cory Fields
131  - Gregory Maxwell
132  - James Evans
133  - John Newbery
134  - MarcoFalke
135  - Matt Corallo
136  - Pieter Wuille
137  - practicalswift
138  - rawodb
139  - Suhas Daftuar
140  - Wladimir J. van der Laan
141  
142  As well as everyone that helped translating on [Transifex](https://www.transifex.com/projects/p/bitcoin/).
143