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Stable release v32.1bitcoin/bitcoin · f0de87f04062 ↗3,020 source files · 47.5 MB stored on the server340 file guides

Release published 2026-10-28 · Snapshot fetched 2026-11-01. Latest stable release at fetch time; development branches and Git history are excluded. Only the selected code window and visible folders load here.

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1Bitcoin Core version 0.9.2 is now available from:
2
3  https://bitcoin.org/bin/0.9.2/
4
5This is a new minor version release, bringing mostly bug fixes and some minor
6improvements. OpenSSL has been updated because of a security issue (CVE-2014-0224).
7Upgrading to this release is recommended.
8
9Please report bugs using the issue tracker at github:
10
11  https://github.com/bitcoin/bitcoin/issues
12
13How to Upgrade
14--------------
15
16If you are running an older version, shut it down. Wait until it has completely
17shut down (which might take a few minutes for older versions), then run the
18installer (on Windows) or just copy over /Applications/Bitcoin-Qt (on Mac) or
19bitcoind/bitcoin-qt (on Linux).
20
21If you are upgrading from version 0.7.2 or earlier, the first time you run
220.9.2 your blockchain files will be re-indexed, which will take anywhere from 
2330 minutes to several hours, depending on the speed of your machine.
24
25Downgrading warnings
26--------------------
27
28The 'chainstate' for this release is not always compatible with previous
29releases, so if you run 0.9.x and then decide to switch back to a
300.8.x release you might get a blockchain validation error when starting the
31old release (due to 'pruned outputs' being omitted from the index of
32unspent transaction outputs).
33
34Running the old release with the -reindex option will rebuild the chainstate
35data structures and correct the problem.
36
37Also, the first time you run a 0.8.x release on a 0.9 wallet it will rescan
38the blockchain for missing spent coins, which will take a long time (tens
39of minutes on a typical machine).
40
41Important changes
42==================
43
44Gitian OSX build
45-----------------
46
47The deterministic build system that was already used for Windows and Linux
48builds is now used for OSX as well. Although the resulting executables have
49been tested quite a bit, there could be possible regressions. Be sure to report
50these on the Github bug tracker mentioned above.
51
52Compatibility of Linux build
53-----------------------------
54
55For Linux we now build against Qt 4.6, and filter the symbols for libstdc++ and glibc.
56This brings back compatibility with
57
58- Debian 6+ / Tails
59- Ubuntu 10.04
60- CentOS 6.5
61
620.9.2 Release notes
63=======================
64
65The OpenSSL dependency in the gitian builds has been upgraded to 1.0.1h because of CVE-2014-0224.
66
67RPC:
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
76Command-line options:
77
78- Fix `-printblocktree` output
79- Show error message if ReadConfigFile fails
80
81Block-chain handling and storage:
82
83- Fix for GetBlockValue() after block 13,440,000 (BIP42)
84- Upgrade leveldb to 1.17
85
86Protocol 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
93Wallet:
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
101Build 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
114GUI:
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
135Miscellaneous:
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
143Credits
144--------
145
146Thanks 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
208

src/wallet/receive.cpp

src/wallet/coinselection.cpp

src/consensus/validation.h

src/primitives/transaction.cpp

src/script/descriptor.cpp

src/bitcoin-cli.cpp

src/rpc/blockchain.cpp

src/rpc/rawtransaction.cpp

src/init.cpp

src/crypto/sha256.cpp

src/consensus/merkle.h

src/consensus/tx_check.h

src/consensus/tx_verify.h

src/policy/feerate.h

src/policy/feerate.cpp

src/primitives/transaction_identifier.h

src/chainparamsbase.h

src/chainparamsbase.cpp

src/util/moneystr.cpp

src/crypto/ripemd160.h

src/crypto/sha1.h

src/crypto/sha512.h

src/crypto/hmac_sha256.h

src/crypto/hmac_sha512.h

src/crypto/hmac_sha256.cpp

src/crypto/hmac_sha512.cpp

src/crypto/hkdf_sha256_32.h

src/crypto/hkdf_sha256_32.cpp

src/support/cleanse.h

src/support/cleanse.cpp

src/crypto/siphash.cpp

src/crypto/muhash.h

src/crypto/chacha20.h

src/crypto/poly1305.h

src/crypto/chacha20poly1305.h

src/crypto/chacha20poly1305.cpp

src/util/chaintype.cpp

src/util/obfuscation.h

src/util/byte_units.h

src/util/overflow.h

src/blockencodings.cpp

src/net_permissions.cpp

src/policy/packages.cpp

src/policy/rbf.cpp

src/policy/truc_policy.cpp

src/policy/ephemeral_policy.cpp

src/policy/settings.cpp

src/policy/policy.cpp

src/node/transaction.cpp

src/node/coin.cpp

src/rpc/client.cpp

src/rpc/external_signer.cpp

src/rpc/request.cpp

src/rpc/server_util.cpp

src/rpc/fees.cpp

src/rpc/output_script.cpp

src/rpc/rawtransaction_util.cpp

src/rpc/rawtransaction_util.h

src/rpc/register.h

src/rpc/request.h

src/rpc/server_util.h

src/rpc/protocol.h

src/rpc/server.h

src/rpc/signmessage.cpp

src/rpc/txoutproof.cpp

src/rpc/util.cpp

src/rpc/util.h

src/wallet/rpc/addresses.cpp

src/wallet/rpc/backup.cpp

src/wallet/rpc/coins.cpp

src/wallet/rpc/encrypt.cpp

src/wallet/rpc/signmessage.cpp

src/wallet/rpc/util.cpp

src/wallet/rpc/util.h

src/wallet/coincontrol.cpp

src/wallet/coincontrol.h

src/wallet/context.cpp

src/wallet/context.h

src/wallet/crypter.cpp

src/wallet/crypter.h

src/wallet/db.cpp

src/wallet/export.cpp

src/wallet/external_signer_scriptpubkeyman.cpp

src/wallet/rpc/spend.cpp

src/wallet/rpc/transactions.cpp

src/wallet/rpc/wallet.cpp

src/wallet/feebumper.cpp

src/wallet/feebumper.h

src/index/base.h

src/index/base.cpp

src/index/txindex.h

src/index/txindex.cpp

src/index/txindex_key.h

src/index/txospenderindex.h

src/index/txospenderindex.cpp

src/index/blockfilterindex.h

src/index/blockfilterindex.cpp

src/index/coinstatsindex.h

src/index/coinstatsindex.cpp

src/index/db_key.h

src/index/disktxpos.h

src/kernel/chain.cpp

src/kernel/chain.h

src/kernel/checks.cpp

src/kernel/checks.h

src/kernel/context.cpp

src/kernel/context.h

src/kernel/cs_main.cpp

src/kernel/cs_main.h

src/kernel/disconnected_transactions.cpp

src/kernel/disconnected_transactions.h

src/kernel/mempool_removal_reason.cpp

src/kernel/mempool_removal_reason.h

src/kernel/coinstats.cpp

src/kernel/coinstats.h

src/kernel/chainparams.cpp

src/kernel/chainparams.h

src/wallet/sqlite.cpp

src/wallet/sqlite.h

src/wallet/transaction.cpp

src/wallet/transaction.h

src/wallet/dump.cpp

src/wallet/dump.h

src/wallet/init.cpp

src/wallet/walletutil.cpp

src/wallet/walletutil.h

src/wallet/wallettool.cpp

src/wallet/wallettool.h

src/wallet/export.h

src/wallet/migrate.cpp

src/wallet/migrate.h

src/wallet/db.h

src/wallet/walletdb.cpp

src/wallet/interfaces.cpp

src/wallet/scriptpubkeyman.cpp

src/wallet/scriptpubkeyman.h

src/kernel/bitcoinkernel.cpp

src/kernel/bitcoinkernel.h

src/kernel/bitcoinkernel_wrapper.h

src/node/chainstate.cpp

src/node/chainstate.h

src/node/blockstorage.cpp

src/node/blockstorage.h

src/node/mempool_persist.cpp

src/node/mempool_persist.h

src/node/utxo_snapshot.cpp

src/node/utxo_snapshot.h

src/node/kernel_notifications.cpp

src/node/kernel_notifications.h

src/node/blockmanager_args.cpp

src/kernel/blockmanager_opts.h

src/util/expected.cpp

src/policy/settings.h

src/util/types.h

src/kernel/messagestartchars.h

src/kernel/warning.h

src/util/exception.h

src/common/license_info.h

src/node/coins_view_args.h

src/node/database_args.h

src/util/batchpriority.h

src/util/ui_change_type.h

src/node/coins_view_args.cpp

src/node/peerman_args.h

src/util/serfloat.h

src/node/blockmanager_args.h

src/node/database_args.cpp

src/util/overloaded.h

src/interfaces/types.h

src/node/chainstatemanager_args.h

src/node/minisketchwrapper.h

src/util/macros.h

src/util/syserror.h

src/common/run_command.h

src/util/bytevectorhash.cpp

src/node/mempool_persist_args.cpp

src/util/exec.h

src/util/rbf.h

src/crypto/hex_base.h

src/node/mempool_persist_args.h

src/interfaces/echo.h

src/util/any.h

src/util/batchpriority.cpp

src/util/threadnames.h

src/node/coin.h

src/node/mempool_args.h

src/util/asmap.h

src/util/bytevectorhash.h

src/node/context.cpp

src/util/insert.h

src/util/readwritefile.h

src/node/peerman_args.cpp

src/node/interface_ui.cpp

src/interfaces/handler.h

src/node/mining_args.h

src/util/hasher.cpp

src/common/init.h

src/kernel/mempool_limits.h

src/common/system.h

src/crypto/sha3.h

src/util/threadinterrupt.cpp

src/node/protocol_version.h

src/util/exception.cpp

src/common/messages.h

src/node/connection_types.cpp

src/util/bip32.h

src/common/license_info.cpp

src/util/stdmutex.h

src/common/run_command.cpp

src/util/check.cpp

src/util/golombrice.h

src/node/types.h

src/node/timeoffsets.h

src/util/readwritefile.cpp

src/util/fastrange.h

src/util/signalinterrupt.h

src/util/task_runner.h

src/util/syserror.cpp

src/common/interfaces.cpp

src/common/types.h

src/util/threadinterrupt.h

src/kernel/chainstatemanager_opts.h

src/node/psbt.h

src/policy/ephemeral_policy.h

src/util/trace.h

src/common/url.cpp

src/kernel/mempool_options.h

src/util/serfloat.cpp

src/kernel/notifications_interface.h

src/node/timeoffsets.cpp

src/node/warnings.cpp

src/util/hash_type.h

src/crypto/hex_base.cpp

src/node/eviction.h

src/util/tokenbucket.h

src/crypto/aes.h

src/common/pcp.h

src/util/feefrac.cpp

src/node/transaction.h

src/util/threadnames.cpp

src/common/signmessage.h

src/util/exec.cpp

src/util/signalinterrupt.cpp

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