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Stable release v32.1bitcoin/bitcoin · f0de87f04062 ↗3,020 source files · 47.5 MB stored on the server440 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.

7,122 bytes · SHA-256 8fe84761c9cb5649… · View upstream ↗

1Bitcoin Core version 0.10.4 is now available from:
2
3  <https://bitcoin.org/bin/bitcoin-core-0.10.4/>
4
5This is a new minor version release, bringing bug fixes, the BIP65
6(CLTV) consensus change, and relay policy preparation for BIP113. It is
7recommended to upgrade to this version as soon as possible.
8
9Please report bugs using the issue tracker at github:
10
11  <https://github.com/bitcoin/bitcoin/issues>
12
13Upgrading and downgrading
14=========================
15
16How to Upgrade
17--------------
18
19If you are running an older version, shut it down. Wait until it has completely
20shut down (which might take a few minutes for older versions), then run the
21installer (on Windows) or just copy over /Applications/Bitcoin-Qt (on Mac) or
22bitcoind/bitcoin-qt (on Linux).
23
24Downgrade warning
25------------------
26
27Because release 0.10.0 and later makes use of headers-first synchronization and
28parallel block download (see further), the block files and databases are not
29backwards-compatible with pre-0.10 versions of Bitcoin Core or other software:
30
31* Blocks will be stored on disk out of order (in the order they are
32received, really), which makes it incompatible with some tools or
33other programs. Reindexing using earlier versions will also not work
34anymore as a result of this.
35
36* The block index database will now hold headers for which no block is
37stored on disk, which earlier versions won't support.
38
39If you want to be able to downgrade smoothly, make a backup of your entire data
40directory. Without this your node will need start syncing (or importing from
41bootstrap.dat) anew afterwards. It is possible that the data from a completely
42synchronised 0.10 node may be usable in older versions as-is, but this is not
43supported and may break as soon as the older version attempts to reindex.
44
45This does not affect wallet forward or backward compatibility. There are no
46known problems when downgrading from 0.11.x to 0.10.x.
47
48Notable changes since 0.10.3
49============================
50
51BIP65 soft fork to enforce OP_CHECKLOCKTIMEVERIFY opcode
52--------------------------------------------------------
53
54This release includes several changes related to the [BIP65][] soft fork
55which redefines the existing OP_NOP2 opcode as OP_CHECKLOCKTIMEVERIFY
56(CLTV) so that a transaction output can be made unspendable until a
57specified point in the future.
58
591. This release will only relay and mine transactions spending a CLTV
60   output if they comply with the BIP65 rules as provided in code.
61
622. This release will produce version 4 blocks by default. Please see the
63   *notice to miners* below.
64
653. Once 951 out of a sequence of 1,001 blocks on the local node's best block
66   chain contain version 4 (or higher) blocks, this release will no
67   longer accept new version 3 blocks and it will only accept version 4
68   blocks if they comply with the BIP65 rules for CLTV.
69
70For more information about the soft-forking change, please see
71<https://github.com/bitcoin/bitcoin/pull/6351>
72
73Graphs showing the progress towards block version 4 adoption may be
74found at the URLs below:
75
76- Block versions over the last 50,000 blocks as progress towards BIP65
77  consensus enforcement: <http://bitcoin.sipa.be/ver-50k.png>
78
79- Block versions over the last 2,000 blocks showing the days to the
80  earliest possible BIP65 consensus-enforced block: <http://bitcoin.sipa.be/ver-2k.png>
81
82**Notice to miners:** Bitcoin Core’s block templates are now for
83version 4 blocks only, and any mining software relying on its
84getblocktemplate must be updated in parallel to use libblkmaker either
85version FIXME or any version from FIXME onward.
86
87- If you are solo mining, this will affect you the moment you upgrade
88  Bitcoin Core, which must be done prior to BIP65 achieving its 951/1001
89  status.
90
91- If you are mining with the stratum mining protocol: this does not
92  affect you.
93
94- If you are mining with the getblocktemplate protocol to a pool: this
95  will affect you at the pool operator’s discretion, which must be no
96  later than BIP65 achieving its 951/1001 status.
97
98[BIP65]: https://github.com/bitcoin/bips/blob/master/bip-0065.mediawiki
99
100Windows bug fix for corrupted UTXO database on unclean shutdowns
101----------------------------------------------------------------
102
103Several Windows users reported that they often need to reindex the
104entire blockchain after an unclean shutdown of Bitcoin Core on Windows
105(or an unclean shutdown of Windows itself). Although unclean shutdowns
106remain unsafe, this release no longer relies on memory-mapped files for
107the UTXO database, which significantly reduced the frequency of unclean
108shutdowns leading to required reindexes during testing.
109
110For more information, see: <https://github.com/bitcoin/bitcoin/pull/6917>
111
112Other fixes for database corruption on Windows are expected in the
113next major release.
114
1150.10.4 Change log
116=================
117
118Detailed release notes follow. This overview includes changes that affect
119behavior, not code moves, refactors and string updates. For convenience in locating
120the code changes and accompanying discussion, both the pull request and
121git merge commit are mentioned.
122
123- #6953 `8b3311f` alias -h for --help
124- #6953 `97546fc` Change URLs to https in debian/control
125- #6953 `38671bf` Update debian/changelog and slight tweak to debian/control
126- #6953 `256321e` Correct spelling mistakes in doc folder
127- #6953 `eae0350` Clarification of unit test build instructions
128- #6953 `90897ab` Update bluematt-key, the old one is long-since revoked
129- #6953 `a2f2fb6` build: disable -Wself-assign
130- #6953 `cf67d8b` Bugfix: Allow mining on top of old tip blocks for testnet (fixes testnet-in-a-box use case)
131- #6953 `b3964e3` Drop "with minimal dependencies" from description
132- #6953 `43c2789` Split bitcoin-tx into its own package
133- #6953 `dfe0d4d` Include bitcoin-tx binary on Debian/Ubuntu
134- #6953 `612efe8` [Qt] Raise debug window when requested
135- #6953 `3ad96bd` Fix locking in GetTransaction
136- #6953 `9c81005` Fix spelling of Qt
137- #6946 `94b67e5` Update LevelDB
138- #6706 `5dc72f8` CLTV: Add more tests to improve coverage
139- #6706 `6a1343b` Add RPC tests for the CHECKLOCKTIMEVERIFY (BIP65) soft-fork
140- #6706 `4137248` Add CHECKLOCKTIMEVERIFY (BIP65) soft-fork logic
141- #6706 `0e01d0f` Enable CHECKLOCKTIMEVERIFY as a standard script verify flag
142- #6706 `6d01325` Replace NOP2 with CHECKLOCKTIMEVERIFY (BIP65)
143- #6706 `750d54f` Move LOCKTIME_THRESHOLD to src/script/script.h
144- #6706 `6897468` Make CScriptNum() take nMaxNumSize as an argument
145- #6867 `5297194` Set TCP_NODELAY on P2P sockets
146- #6836 `fb818b6` Bring historical release notes up to date
147- #6852 `0b3fd07` build: make sure OpenSSL heeds noexecstack
148
149Credits
150=======
151
152Thanks to everyone who directly contributed to this release:
153
154- Alex Morcos
155- Daniel Cousens
156- Diego Viola
157- Eric Lombrozo
158- Esteban Ordano
159- Gregory Maxwell
160- Luke Dashjr
161- MarcoFalke
162- Matt Corallo
163- Micha
164- Mitchell Cash
165- Peter Todd
166- Pieter Wuille
167- Wladimir J. van der Laan
168- Zak Wilcox
169
170And those who contributed additional code review and/or security research.
171
172As well as everyone that helped translating on [Transifex](https://www.transifex.com/projects/p/bitcoin/).
173

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

src/clientversion.cpp

src/common/signmessage.cpp

src/compat/assumptions.h

src/compat/byteswap.h

src/deploymentinfo.cpp

src/deploymentinfo.h

src/deploymentstatus.cpp

src/deploymentstatus.h

src/dummywallet.cpp

src/external_signer.h

src/init/bitcoin-gui.cpp

src/init/bitcoin-node.cpp

src/init/bitcoin-qt.cpp

src/init/bitcoin-wallet.cpp

src/init/bitcoind.cpp

src/init/common.h

src/interfaces/init.h

src/interfaces/ipc.h

src/key_io.h

src/logging/categories.h

src/logging/timer.h

src/mapport.h

src/musig.h

src/net_permissions.h

src/netgroup.h

src/netmessagemaker.h

src/node/chainstatemanager_args.cpp

src/node/connection_types.h

src/node/context.h

src/node/interface_ui.h

src/node/mempool_args.cpp

src/node/mining_args.cpp

src/node/minisketchwrapper.cpp

src/node/txreconciliation.h

src/policy/fees/estimator_args.cpp

src/policy/fees/estimator_args.h

src/policy/fees/estimator_man.cpp

src/policy/fees/estimator_man.h

src/policy/packages.h

src/policy/rbf.h

src/policy/truc_policy.h

src/pow.h

src/primitives/block.cpp

src/randomenv.h

src/rest.h

src/script/keyorigin.h

src/script/parsing.cpp

src/script/parsing.h

src/script/script_error.h

src/script/sigcache.cpp

src/script/sigcache.h

src/script/solver.h

src/script/verify_flags.h

src/semaphore_grant.h

src/signet.h

src/span.h

src/support/allocators/secure.h

src/support/allocators/zeroafterfree.h

src/util/tokenpipe.cpp

src/util/translation.h

src/util/vector.h

src/versionbits.h

src/versionbits_impl.h

src/wallet/external_signer_scriptpubkeyman.h

src/wallet/fees.h

src/wallet/load.h

src/wallet/receive.h

src/wallet/rpc/wallet.h

src/wallet/types.h

src/walletinitinterface.h

src/zmq/zmqabstractnotifier.cpp

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