1  Bitcoin Core version 0.9.2.1 is now available from:
  2  
  3    https://bitcoin.org/bin/0.9.2.1/
  4  
  5  This is a new minor version release, bringing mostly bug fixes and some minor
  6  improvements. OpenSSL has been updated because of a security issue (CVE-2014-0224).
  7  Upgrading to this release is recommended.
  8  
  9  Please report bugs using the issue tracker at github:
 10  
 11    https://github.com/bitcoin/bitcoin/issues
 12  
 13  How to Upgrade
 14  --------------
 15  
 16  If you are running an older version, shut it down. Wait until it has completely
 17  shut down (which might take a few minutes for older versions), then run the
 18  installer (on Windows) or just copy over /Applications/Bitcoin-Qt (on Mac) or
 19  bitcoind/bitcoin-qt (on Linux).
 20  
 21  If you are upgrading from version 0.7.2 or earlier, the first time you run
 22  0.9.2.1 your blockchain files will be re-indexed, which will take anywhere from 
 23  30 minutes to several hours, depending on the speed of your machine.
 24  
 25  Downgrading warnings
 26  --------------------
 27  
 28  The 'chainstate' for this release is not always compatible with previous
 29  releases, so if you run 0.9.x and then decide to switch back to a
 30  0.8.x release you might get a blockchain validation error when starting the
 31  old release (due to 'pruned outputs' being omitted from the index of
 32  unspent transaction outputs).
 33  
 34  Running the old release with the -reindex option will rebuild the chainstate
 35  data structures and correct the problem.
 36  
 37  Also, the first time you run a 0.8.x release on a 0.9 wallet it will rescan
 38  the blockchain for missing spent coins, which will take a long time (tens
 39  of minutes on a typical machine).
 40  
 41  Important changes
 42  ==================
 43  
 44  Gitian OSX build
 45  -----------------
 46  
 47  The deterministic build system that was already used for Windows and Linux
 48  builds is now used for OSX as well. Although the resulting executables have
 49  been tested quite a bit, there could be possible regressions. Be sure to report
 50  these on the Github bug tracker mentioned above.
 51  
 52  Compatibility of Linux build
 53  -----------------------------
 54  
 55  For Linux we now build against Qt 4.6, and filter the symbols for libstdc++ and glibc.
 56  This brings back compatibility with
 57  
 58  - Debian 6+ / Tails
 59  - Ubuntu 10.04
 60  - CentOS 6.5
 61  
 62  0.9.2 - 0.9.2.1 Release notes
 63  =======================
 64  
 65  The OpenSSL dependency in the gitian builds has been upgraded to 1.0.1h because of CVE-2014-0224.
 66  
 67  RPC:
 68  
 69  - Add `getwalletinfo`, `getblockchaininfo` and `getnetworkinfo` calls (will replace hodge-podge `getinfo` at some point)
 70  - Add a `relayfee` field to `getnetworkinfo`
 71  - Fix RPC related shutdown hangs and leaks
 72  - Always show syncnode in `getpeerinfo`
 73  - `sendrawtransaction`: report the reject code and reason, and make it possible to re-send transactions that are already in the mempool
 74  - `getmininginfo` show right genproclimit
 75  
 76  Command-line options:
 77  
 78  - Fix `-printblocktree` output
 79  - Show error message if ReadConfigFile fails
 80  
 81  Block-chain handling and storage:
 82  
 83  - Fix for GetBlockValue() after block 13,440,000 (BIP42)
 84  - Upgrade leveldb to 1.17
 85  
 86  Protocol and network code:
 87  
 88  - Per-peer block download tracking and stalled download detection
 89  - Add new DNS seed from bitnodes.io
 90  - Prevent socket leak in ThreadSocketHandler and correct some proxy related socket leaks
 91  - Use pnode->nLastRecv as sync score (was the wrong way around)
 92  
 93  Wallet:
 94  
 95  - Make GetAvailableCredit run GetHash() only once per transaction (performance improvement)
 96  - Lower paytxfee warning threshold from 0.25 BTC to 0.01 BTC
 97  - Fix importwallet nTimeFirstKey (trigger necessary rescans)
 98  - Log BerkeleyDB version at startup
 99  - CWallet init fix
100  
101  Build system:
102  
103  - Add OSX build descriptors to gitian
104  - Fix explicit --disable-qt-dbus
105  - Don't require db_cxx.h when compiling with wallet disabled and GUI enabled
106  - Improve missing boost error reporting
107  - Upgrade miniupnpc version to 1.9
108  - gitian-linux: --enable-glibc-back-compat for binary compatibility with old distributions
109  - gitian: don't export any symbols from executable
110  - gitian: build against Qt 4.6
111  - devtools: add script to check symbols from Linux gitian executables
112  - Remove build-time no-IPv6 setting
113  
114  GUI:
115  
116  - Fix various coin control visual issues
117  - Show number of in/out connections in debug console
118  - Show weeks as well as years behind for long timespans behind
119  - Enable and disable the Show and Remove buttons for requested payments history based on whether any entry is selected.
120  - Show also value for options overridden on command line in options dialog
121  - Fill in label from address book also for URIs
122  - Fixes feel when resizing the last column on tables (issue #2862)
123  - Fix ESC in disablewallet mode
124  - Add expert section to wallet tab in optionsdialog
125  - Do proper boost::path conversion (fixes unicode in datadir)
126  - Only override -datadir if different from the default (fixes -datadir in config file)
127  - Show rescan progress at start-up
128  - Show importwallet progress
129  - Get required locks upfront in polling functions (avoids hanging on locks)
130  - Catch Windows shutdown events while client is running
131  - Optionally add third party links to transaction context menu
132  - Check for !pixmap() before trying to export QR code (avoids crashes when no QR code could be generated)
133  - Fix "Start bitcoin on system login"
134  
135  Miscellaneous:
136  
137  - Replace non-threadsafe C functions (gmtime, strerror and setlocale)
138  - Add missing cs_main and wallet locks
139  - Avoid exception at startup when system locale not recognized
140  - Changed bitrpc.py's raw_input to getpass for passwords to conceal characters during command line input
141  - devtools: add a script to fetch and postprocess translations
142  
143  Credits
144  --------
145  
146  Thanks to everyone who contributed to this release:
147  
148  - Addy Yeow
149  - Altoidnerd
150  - Andrea D'Amore
151  - Andreas Schildbach
152  - Bardi Harborow
153  - Brandon Dahler
154  - Bryan Bishop
155  - Chris Beams
156  - Christian von Roques
157  - Cory Fields
158  - Cozz Lovan
159  - daniel
160  - Daniel Newton
161  - David A. Harding
162  - ditto-b
163  - duanemoody
164  - Eric S. Bullington
165  - Fabian Raetz
166  - Gavin Andresen
167  - Gregory Maxwell
168  - gubatron
169  - Haakon Nilsen
170  - harry
171  - Hector Jusforgues
172  - Isidoro Ghezzi
173  - Jeff Garzik
174  - Johnathan Corgan
175  - jtimon
176  - Kamil Domanski
177  - langerhans
178  - Luke Dashjr
179  - Manuel Araoz
180  - Mark Friedenbach
181  - Matt Corallo
182  - Matthew Bogosian
183  - Meeh
184  - Michael Ford
185  - Michagogo
186  - Mikael Wikman
187  - Mike Hearn
188  - olalonde
189  - paveljanik
190  - peryaudo
191  - Philip Kaufmann
192  - philsong
193  - Pieter Wuille
194  - R E Broadley
195  - richierichrawr
196  - Rune K. Svendsen
197  - rxl
198  - shshshsh
199  - Simon de la Rouviere
200  - Stuart Cardall
201  - super3
202  - Telepatheic
203  - Thomas Zander
204  - Torstein Husebø
205  - Warren Togami
206  - Wladimir J. van der Laan
207  - Yoichi Hirai