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Bitcoin Core version 0.16.3 is now available from:
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<https://bitcoincore.org/bin/bitcoin-core-0.16.3/>
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This is a new minor version release, with various bugfixes
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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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How to Upgrade
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==============
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If you are running an older version, shut it down. Wait until it has completely
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shut down (which might take a few minutes for older versions), then run the
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installer (on Windows) or just copy over `/Applications/Bitcoin-Qt` (on Mac)
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or `bitcoind`/`bitcoin-qt` (on Linux).
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The first time you run version 0.15.0 or newer, your chainstate database will be converted to a
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new format, which will take anywhere from a few minutes to half an hour,
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depending on the speed of your machine.
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Note that the block database format also changed in version 0.8.0 and there is no
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automatic upgrade code from before version 0.8 to version 0.15.0 or higher. Upgrading
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directly from 0.7.x and earlier without re-downloading the blockchain is not supported.
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However, as usual, old wallet versions are still supported.
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Downgrading warning
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-------------------
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Wallets created in 0.16 and later are not compatible with versions prior to 0.16
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and will not work if you try to use newly created wallets in older versions. Existing
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wallets that were created with older versions are not affected by this.
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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. Windows XP is not supported.
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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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Denial-of-Service vulnerability
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-------------------------------
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A denial-of-service vulnerability exploitable by miners has been discovered in
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Bitcoin Core versions 0.14.0 up to 0.16.2. It is recommended to upgrade any of
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the vulnerable versions to 0.16.3 as soon as possible.
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0.16.3 change log
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------------------
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### Consensus
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- #14249 `696b936` Fix crash bug with duplicate inputs within a transaction (TheBlueMatt, sdaftuar)
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### RPC and other APIs
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- #13547 `212ef1f` Make `signrawtransaction*` give an error when amount is needed but missing (ajtowns)
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### Miscellaneous
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- #13655 `1cdbea7` bitcoinconsensus: invalid flags error should be set to `bitcoinconsensus_err` (afk11)
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### Documentation
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- #13844 `11b9dbb` correct the help output for -prune (hebasto)
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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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- Anthony Towns
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- Hennadii Stepanov
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- Matt Corallo
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- Suhas Daftuar
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- Thomas Kerin
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- Wladimir J. van der Laan
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And to those that reported security issues:
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- beardnboobies
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As well as everyone that helped translating on [Transifex](https://www.transifex.com/projects/p/bitcoin/).
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