1  Bitcoin Core version *0.15.2* is now available from:
  2  
  3    <https://bitcoincore.org/bin/bitcoin-core-0.15.2/>
  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  How to Upgrade
 17  ==============
 18  
 19  If you are running an older version, shut it down. Wait until it has completely
 20  shut down (which might take a few minutes for older versions), then run the 
 21  installer (on Windows) or just copy over `/Applications/Bitcoin-Qt` (on Mac)
 22  or `bitcoind`/`bitcoin-qt` (on Linux).
 23  
 24  The first time you run version 0.15.0 or higher, your chainstate database will
 25  be converted to a new format, which will take anywhere from a few minutes to
 26  half an hour, depending on the speed of your machine.
 27  
 28  The file format of `fee_estimates.dat` changed in version 0.15.0. Hence, a
 29  downgrade from version 0.15 or upgrade to version 0.15 will cause all fee
 30  estimates to be discarded.
 31  
 32  Note that the block database format also changed in version 0.8.0 and there is no
 33  automatic upgrade code from before version 0.8 to version 0.15.0. Upgrading
 34  directly from 0.7.x and earlier without redownloading the blockchain is not supported.
 35  However, as usual, old wallet versions are still supported.
 36  
 37  Downgrading warning
 38  -------------------
 39  
 40  The chainstate database for this release is not compatible with previous
 41  releases, so if you run 0.15 and then decide to switch back to any
 42  older version, you will need to run the old release with the `-reindex-chainstate`
 43  option to rebuild the chainstate data structures in the old format.
 44  
 45  If your node has pruning enabled, this will entail re-downloading and
 46  processing the entire blockchain.
 47  
 48  Compatibility
 49  ==============
 50  
 51  Bitcoin Core is extensively tested on multiple operating systems using
 52  the Linux kernel, macOS 10.8+, and Windows Vista and later. Windows XP is not supported.
 53  
 54  Bitcoin Core should also work on most other Unix-like systems but is not
 55  frequently tested on them.
 56  
 57  
 58  Notable changes
 59  ===============
 60  
 61  Denial-of-Service vulnerability CVE-2018-17144
 62  -------------------------------
 63  
 64  A denial-of-service vulnerability exploitable by miners has been discovered in
 65  Bitcoin Core versions 0.14.0 up to 0.16.2. It is recommended to upgrade any of
 66  the vulnerable versions to 0.15.2 or 0.16.3 as soon as possible.
 67  
 68  0.15.2 Change log
 69  =================
 70  
 71  ### Build system
 72  
 73  - #11995 `9bb1a16` depends: Fix Qt build with XCode 9.2(fanquake)
 74  - #12946 `93b9a61` depends: Fix Qt build with XCode 9.3(fanquake)
 75  - #13544 `9fd3e00` depends: Update Qt download url (fanquake)
 76  - #11847 `cb7ef31` Make boost::multi_index comparators const (sdaftuar)
 77  
 78  ### Consensus
 79  - #14247 `4b8a3f5` Fix crash bug with duplicate inputs within a transaction (TheBlueMatt, sdaftuar)
 80   
 81  ### RPC
 82  - #11676 `7af2457` contrib/init: Update openrc-run filename (Luke Dashjr)
 83  - #11277 `7026845` Fix uninitialized URI in batch RPC requests (Russell Yanofsky)
 84   
 85  ### Wallet
 86  - #11289 `3f1db56` Wrap dumpwallet warning and note scripts aren't dumped (MeshCollider)
 87  - #11289 `42ea47d` Add wallet backup text to import*, add* and dumpwallet RPCs (MeshCollider)
 88  - #11590 `6372a75` [Wallet] always show help-line of wallet encryption calls (Jonas Schnelli)
 89  
 90  ### bitcoin-tx
 91  
 92  - #11554 `a69cc07` Sanity-check script sizes in bitcoin-tx (TheBlueMatt)
 93  
 94  ### Tests
 95  - #11277 `3a6cdd4` Add test for multiwallet batch RPC calls (Russell Yanofsky)
 96  - #11647 `1c8c7f8` Add missing batch rpc calls to python coverage logs (Russell Yanofsky)
 97  - #11277 `1036c43` Add missing multiwallet rpc calls to python coverage logs (Russell Yanofsky)
 98  - #11277 `305f768` Limit AuthServiceProxyWrapper.\_\_getattr\_\_ wrapping (Russell Yanofsky)
 99  - #11277 `2eea279` Make AuthServiceProxy.\_batch method usable (Russell Yanofsky)
100  
101  Credits
102  =======
103  
104  Thanks to everyone who directly contributed to this release:
105  
106  - fanquake
107  - Jonas Schnelli
108  - Luke Dashjr
109  - Matt Corallo
110  - MeshCollider
111  - Russell Yanofsky
112  - Suhas Daftuar
113  - Wladimir J. van der Laan
114  
115  And to those that reported security issues:
116  
117  - awemany (for CVE-2018-17144, previously credited as "anonymous reporter")
118