blog: Add release notes for 0.14.1

_posts/2017-04-22-bitcoin-core-0-14-1-released.md

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+---
+# This file is licensed under the MIT License (MIT) available on
+# http://opensource.org/licenses/MIT.
+
+type: posts
+layout: post
+category: blog
+
+title: "Bitcoin Core Version 0.14.0 Released"
+permalink: /en/posts/bitcoin-core-version-0-14-1-released.html
+date: 2017-04-22
+author: |
+  <a href="https://github.com/wbnns">Will Binns</a>
+---
+
+{:.center}
+![Bitcoin Core Version 0.14.1](/img/blog/free/bitcoin-core-0141.png)
+
+[Bitcoin Core version 0.14.1 is now available](https://bitcoin.org/en/download).
+
+This is a new minor version release, including various bugfixes and performance improvements, as well as updated translations.
+
+Please report bugs using the [issue tracker on GitHub](https://github.com/bitcoin/bitcoin/issues).
+
+[Subscribe here](https://bitcoincore.org/en/list/announcements/join/) to receive
+security and update notifications.
+
+## Compatibility
+
+Bitcoin Core is extensively tested on multiple operating systems using
+the Linux kernel, macOS 10.8+, and Windows Vista and later.
+
+Microsoft ended support for Windows XP on [April 8th,
+2014](https://www.microsoft.com/en-us/WindowsForBusiness/end-of-xp-support),
+No attempt is made to prevent installing or running the software on Windows XP,
+you can still do so at your own risk but be aware that there are known
+instabilities and issues. Please do not report issues about Windows XP to the
+[issue tracker](https://github.com/bitcoin/bitcoin/issues).
+
+Bitcoin Core should also work on most other Unix-like systems but is not
+frequently tested on them.
+
+## Notable changes
+
+### RPC changes
+
+- The first positional argument of `createrawtransaction` was renamed from
+  `transactions` to `inputs`.
+- The argument of `disconnectnode` was renamed from `node` to `address`.
+
+These interface changes break compatibility with 0.14.0, when the named
+arguments functionality, introduced in 0.14.0, is used. Client software
+using these calls with named arguments needs to be updated.
+
+### Mining
+
+In previous versions, getblocktemplate required segwit support from downstream
+clients/miners once the feature activated on the network. In this version, it
+now supports non-segwit clients even after activation, by removing all segwit
+transactions from the returned block template. This allows non-segwit miners to
+continue functioning correctly even after segwit has activated.
+
+Due to the limitations in previous versions, getblocktemplate also recommended
+non-segwit clients to not signal for the segwit version-bit. Since this is no
+longer an issue, getblocktemplate now always recommends signalling segwit for
+all miners. This is safe because ability to enforce the rule is the only
+required criteria for safe activation, not actually producing segwit-enabled
+blocks.
+
+### UTXO memory accounting
+
+Memory usage for the UTXO cache is being calculated more accurately, so that
+the configured limit (`-dbcache`) will be respected when memory usage peaks
+during cache flushes.  The memory accounting in prior releases is estimated to
+only account for half the actual peak utilization.
+
+The default `-dbcache` has also been changed in this release to 450MiB.  Users
+who currently set `-dbcache` to a high value (e.g. to keep the UTXO more fully
+cached in memory) should consider increasing this setting in order to achieve
+the same cache performance as prior releases.  Users on low-memory systems
+(such as systems with 1GB or less) should consider specifying a lower value for
+this parameter.
+
+Additional information relating to running on low-memory systems can be found
+here:
+[reducing-bitcoind-memory-usage.md](https://gist.github.com/laanwj/efe29c7661ce9b6620a7).
+
+## 0.14.1 Change log
+
+Detailed release notes follow. This overview includes changes that affect
+behavior, not code moves, refactors and string updates. For convenience in locating
+the code changes and accompanying discussion, both the pull request and
+git merge commit are mentioned.
+
+### RPC and other APIs
+
+- \#10084 `142fbb2` Rename first named arg of createrawtransaction (MarcoFalke)
+- \#10139 `f15268d` Remove auth cookie on shutdown (practicalswift)
+- \#10146 `2fea10a` Better error handling for submitblock (rawodb, gmaxwell)
+- \#10144 `d947afc` Prioritisetransaction wasn't always updating ancestor fee (sdaftuar)
+- \#10204 `3c79602` Rename disconnectnode argument (jnewbery)
+
+### Block and transaction handling
+
+- \#10126 `0b5e162` Compensate for memory peak at flush time (sipa)
+- \#9912 `fc3d7db` Optimize GetWitnessHash() for non-segwit transactions (sdaftuar)
+- \#10133 `ab864d3` Clean up calculations of pcoinsTip memory usage (morcos)
+
+### P2P protocol and network code
+
+- \#9953/\#10013 `d2548a4` Fix shutdown hang with >= 8 -addnodes set (TheBlueMatt)
+- \#10176 `30fa231` net: gracefully handle NodeId wrapping (theuni)
+
+### Build system
+
+- \#9973 `e9611d1` depends: fix zlib build on osx (theuni)
+
+### GUI
+
+- \#10060 `ddc2dd1` Ensure an item exists on the rpcconsole stack before adding (achow101)
+
+### Mining
+
+- \#9955/#10006 `569596c` Don't require segwit in getblocktemplate for segwit signalling or mining (sdaftuar)
+- \#9959/#10127 `b5c3440` Prevent slowdown in CreateNewBlock on large mempools (sdaftuar)
+
+### Tests and QA
+
+- \#10157 `55f641c` Fix the `mempool_packages.py` test (sdaftuar)
+
+### Miscellaneous
+
+- \#10037 `4d8e660` Trivial: Fix typo in help getrawtransaction RPC (keystrike)
+- \#10120 `e4c9a90` util: Work around (virtual) memory exhaustion on 32-bit w/ glibc (laanwj)
+- \#10130 `ecc5232` bitcoin-tx input verification (awemany, jnewbery)
+
+## Credits
+
+Thanks to everyone who directly contributed to this release:
+
+- Alex Morcos
+- Andrew Chow
+- Awemany
+- Cory Fields
+- Gregory Maxwell
+- James Evans
+- John Newbery
+- MarcoFalke
+- Matt Corallo
+- Pieter Wuille
+- practicalswift
+- rawodb
+- Suhas Daftuar
+- Wladimir J. van der Laan
+
+As well as everyone that helped translating on
+[Transifex](https://www.transifex.com/projects/p/bitcoin/).