Skip to content

BITCOIN MAINNETLive explorer status

₿MyBitcoinExplorer

Explorer Mempool Feed Forum Visualizer Receipts Tools Learn Code

Inside Bitcoin

Opening the selected file…

₿MyBitcoinExplorer

Bitcoin, in focus.
Explore the network. Understand the connections.

Explore Bitcoin with clarity.

Explore

Block explorer Mempool Bitcoin message feed Fee estimates Transaction graph

Build & learn

Developer tools API documentation Bitcoin guides Inside Bitcoin source Our methodology

MyBitcoinExplorer

Watchlists & alerts About the project Network status Address monitoring

© 2026 MyBitcoinExplorer. Bitcoin, in focus.Privacy Terms Contact Bitcoin mainnet

READ THE CODE

Inside Bitcoin

The code behind the network, with room to understand it.

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.

bitcoin / bitcoinstable

Find a file

▤ release-notes-0.10.0.md

▤ release-notes-0.10.1.md

▤ release-notes-0.10.2.md

▤ release-notes-0.10.3.md

▤ release-notes-0.10.4.md

▤ release-notes-0.11.0.md

▤ release-notes-0.11.1.md

▤ release-notes-0.11.2.md

▤ release-notes-0.12.0.md

▤ release-notes-0.12.1.md

▤ release-notes-0.13.0.md

▤ release-notes-0.13.1.md

▤ release-notes-0.13.2.md

▤ release-notes-0.14.0.md

▤ release-notes-0.14.1.md

▤ release-notes-0.14.2.md

▤ release-notes-0.14.3.md

▤ release-notes-0.15.0.1.md

▤ release-notes-0.15.0.md

▤ release-notes-0.15.1.md

▤ release-notes-0.15.2.md

▤ release-notes-0.16.0.md

▤ release-notes-0.16.1.md

▤ release-notes-0.16.2.md

▤ release-notes-0.16.3.md

▤ release-notes-0.17.0.1.md

▤ release-notes-0.17.0.md

▤ release-notes-0.17.1.md

▤ release-notes-0.18.0.md

▤ release-notes-0.18.1.md

▤ release-notes-0.19.0.1.md

▤ release-notes-0.19.0.md

▤ release-notes-0.19.1.md

▤ release-notes-0.20.0.md

▤ release-notes-0.20.1.md

▤ release-notes-0.20.2.md

▤ release-notes-0.21.0.md

▤ release-notes-0.21.1.md

▤ release-notes-0.21.2.md

▤ release-notes-0.3.12.md

▤ release-notes-0.3.13.md

▤ release-notes-0.3.14.md

▤ release-notes-0.3.15.md

▤ release-notes-0.3.16.md

▤ release-notes-0.3.17.md

▤ release-notes-0.3.18.md

▤ release-notes-0.3.19.md

▤ release-notes-0.3.20.1.md

▤ release-notes-0.3.20.2.md

▤ release-notes-0.3.20.md

▤ release-notes-0.3.21.md

▤ release-notes-0.3.22.md

▤ release-notes-0.3.23.md

▤ release-notes-0.3.24.md

▤ release-notes-0.4.0.md

▤ release-notes-0.4.1.md

▤ release-notes-0.4.2.md

▤ release-notes-0.4.3.md

▤ release-notes-0.4.4.md

▤ release-notes-0.4.5.md

▤ release-notes-0.4.6.md

▤ release-notes-0.5.0.md

▤ release-notes-0.5.1.md

▤ release-notes-0.5.2.md

▤ release-notes-0.5.3.md

▤ release-notes-0.5.4.md

▤ release-notes-0.5.5.md

▤ release-notes-0.6.0.md

▤ release-notes-0.6.1.md

▤ release-notes-0.6.2.md

▤ release-notes-0.6.3.md

▤ release-notes-0.7.0.md

▤ release-notes-0.7.1.md

▤ release-notes-0.7.2.md

▤ release-notes-0.8.0.md

▤ release-notes-0.8.1.md

▤ release-notes-0.8.2.md

▤ release-notes-0.8.3.md

▤ release-notes-0.8.4.md

▤ release-notes-0.8.5.md

▤ release-notes-0.8.6.md

▤ release-notes-0.9.0.md

▤ release-notes-0.9.1.md

▤ release-notes-0.9.2.1.md

▤ release-notes-0.9.2.md

▤ release-notes-0.9.3.md

▤ release-notes-0.9.4.md

▤ release-notes-0.9.5.md

▤ release-notes-22.0.md

▤ release-notes-22.1.md

▤ release-notes-23.0.md

▤ release-notes-23.1.md

▤ release-notes-23.2.md

▤ release-notes-24.0.1.md

▤ release-notes-24.0.md

▤ release-notes-24.1.md

▤ release-notes-24.2.md

▤ release-notes-25.0.md

▤ release-notes-25.1.md

▤ release-notes-25.2.md

▤ release-notes-26.0.md

▤ release-notes-26.1.md

▤ release-notes-26.2.md

▤ release-notes-27.0.md

▤ release-notes-27.1.md

▤ release-notes-27.2.md

▤ release-notes-28.0.md

▤ release-notes-28.1.md

▤ release-notes-28.2.md

▤ release-notes-28.3.md

▤ release-notes-28.4.md

▤ release-notes-29.0.md

▤ release-notes-29.1.md

▤ release-notes-29.2.md

▤ release-notes-29.3.md

▤ release-notes-29.4.md

▤ release-notes-30.0.md

▤ release-notes-30.1.md

▤ release-notes-30.2.md

▤ release-notes-30.3.md

▤ release-notes-31.0.md

▤ release-notes-31.1.md

▤ AI_POLICY.md

▤ asmap-data.md

▤ assets-attribution.md

▤ assumeutxo.md

▤ benchmarking.md

▤ bitcoin_logo_doxygen.png

▤ bitcoin-conf.md

▤ build-freebsd.md

▤ build-netbsd.md

▤ build-openbsd.md

▤ build-osx.md

▤ build-unix.md

▤ build-windows-msvc.md

▤ build-windows.md

▤ CMakeLists.txt

▤ dependencies.md

▤ descriptors.md

▤ developer-notes.md

▤ dnsseed-policy.md

▤ Doxyfile.in

▤ external-signer.md

▤ INSTALL_linux.md

▤ JSON-RPC-interface.md

▤ managing-wallets.md

▤ multiprocess.md

▤ multisig-tutorial.md

▤ offline-signing-tutorial.md

▤ p2p-bad-ports.md

▤ productivity.md

▤ README_doxygen.md

▤ README_windows.txt

▤ reduce-memory.md

▤ reduce-traffic.md

▤ release-notes.md

▤ release-process.md

▤ REST-interface.md

▤ translation_process.md

▤ translation_strings_policy.md

▤ .editorconfig

▤ .gitattributes

▤ .python-version

▤ .style.yapf

▤ CMakeLists.txtGuide

▤ CMakePresets.json

▤ CONTRIBUTING.md

▤ COPYINGGuide

▤ CTestConfig.cmake

▤ libbitcoinkernel.pc.in

▤ README.mdGuide

▤ SECURITY.md

bitcoin / doc / release-notes / release-notes-29.3.md

Download source ↓

3,078 bytes · SHA-256 7ed1d2cac8728549… · View upstream ↗

1Bitcoin Core version 29.3 is now available from:
2
3  <https://bitcoincore.org/bin/bitcoin-core-29.3/>
4
5This release includes various bug fixes and performance
6improvements, as well as updated translations.
7
8Please report bugs using the issue tracker at GitHub:
9
10  <https://github.com/bitcoin/bitcoin/issues>
11
12To receive security and update notifications, please subscribe to:
13
14  <https://bitcoincore.org/en/list/announcements/join/>
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 in some cases), then run the
21installer (on Windows) or just copy over `/Applications/Bitcoin-Qt` (on macOS)
22or `bitcoind`/`bitcoin-qt` (on Linux).
23
24Upgrading directly from a version of Bitcoin Core that has reached its EOL is
25possible, but it might take some time if the data directory needs to be migrated. Old
26wallet versions of Bitcoin Core are generally supported.
27
28Compatibility
29==============
30
31Bitcoin Core is supported and tested on operating systems using the
32Linux Kernel 3.17+, macOS 13+, and Windows 10+. Bitcoin
33Core should also work on most other Unix-like systems but is not as
34frequently tested on them. It is not recommended to use Bitcoin Core on
35unsupported systems.
36
37Notable changes
38===============
39
40### P2P
41
42- #33050 net, validation: don't punish peers for consensus-invalid txs
43- #33723 chainparams: remove dnsseed.bitcoin.dashjr-list-of-p2p-nodes.us
44
45### Validation
46
47- #32473 Introduce per-txin sighash midstate cache for legacy/p2sh/segwitv0 scripts
48- #33105 validation: detect witness stripping without re-running Script checks
49
50### Wallet
51
52- #33268 wallet: Identify transactions spending 0-value outputs, and add tests for anchor outputs in a wallet
53- #34156 wallet: fix unnamed legacy wallet migration failure
54- #34226 wallet: test: Relative wallet failed migration cleanup
55- #34123 wallet: migration, avoid creating spendable wallet from a watch-only legacy wallet
56- #34215 wallettool: fix unnamed createfromdump failure walletsdir deletion
57- #34370 wallet: Additional cleanups for migration, and fixes for createfromdump with BDB
58
59### Mining
60
61- #33475 bugfix: miner: fix `addPackageTxs` unsigned integer overflow
62
63### Build
64
65- #34227 guix: Fix `osslsigncode` tests
66
67### Documentation
68
69- #33623 doc: document capnproto and libmultiprocess deps in 29.x
70
71### Test
72
73- #33612 test: change log rate limit version gate
74
75### Misc
76
77- #32513 ci: remove 3rd party js from windows dll gha job
78- #33508 ci: fix buildx gha cache authentication on forks
79- #33581 ci: Properly include $FILE_ENV in DEPENDS_HASH
80- #34344 ci: update GitHub Actions versions
81
82Credits
83=======
84
85Thanks to everyone who directly contributed to this release:
86
87- Anthony Towns
88- Antoine Poinsot
89- Ava Chow
90- David Gumberg
91- Eugene Siegel
92- fanquake
93- furszy
94- Hennadii Stepanov
95- ismaelsadeeq
96- luke-jr
97- m3dwards
98- Padraic Slattery
99- Pieter Wuille
100- SatsAndSports
101- sedited
102- willcl-ark
103
104As well as to everyone that helped with translations on
105[Transifex](https://explore.transifex.com/bitcoin/bitcoin/).
106

A READING COMPANION

Source available. Guide coming next.

This file is included in the stable source snapshot. A file-specific guide has not been published yet.

440 guided files · 2,580 pending. Guides cover key sections, not every line.

cmake/bitcoin-build-config.h.in src/consensus/amount.h src/consensus/consensus.h src/primitives/block.h src/primitives/transaction.h src/crypto/sha256.h src/util/moneystr.h src/clientversion.h src/uint256.h src/script/script.h src/policy/policy.h CMakeLists.txt README.md COPYING src/consensus/tx_check.cpp src/consensus/tx_verify.cpp src/consensus/merkle.cpp src/pow.cpp src/validation.cpp src/script/interpreter.cpp src/script/solver.cpp src/script/sign.cpp src/key_io.cpp src/net.cpp src/net_processing.cpp src/netaddress.cpp src/protocol.h src/wallet/wallet.cpp src/wallet/spend.cpp

Code page 1

src/wallet/receive.cpp

src/wallet/coinselection.cpp

src/wallet/fees.cpp

src/wallet/load.cpp

src/txmempool.cpp

src/node/miner.cpp

src/chainparams.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/crypto/sha256.cpp

src/serialize.h

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/arith_uint256.h

src/blockencodings.h

src/blockfilter.h

src/crypto/siphash.h

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/compressor.h

src/compressor.cpp

src/flatfile.cpp

src/dbwrapper.h

src/util/chaintype.h

src/util/chaintype.cpp

src/scheduler.h

src/scheduler.cpp

src/checkqueue.h

src/threadsafety.h

src/util/obfuscation.h

src/util/byte_units.h

src/util/overflow.h

src/blockencodings.cpp

src/blockfilter.cpp

src/merkleblock.cpp

src/merkleblock.h

src/addrman.cpp

src/netgroup.cpp

src/net_permissions.cpp

src/netbase.cpp

src/torcontrol.cpp

src/net_types.h

src/net_types.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/server.cpp

src/rpc/mempool.cpp

src/rpc/mining.cpp

src/rpc/net.cpp

src/rpc/node.cpp

src/rpc/blockchain.h

src/rpc/client.h

src/rpc/mempool.h

src/rpc/mining.h

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/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/abort.cpp

src/node/abort.h

src/node/caches.cpp

src/node/caches.h

src/kernel/caches.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/util/rbf.cpp

src/util/thread.h

src/common/netif.h

src/common/url.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/crypto/hex_base.h

src/node/mempool_persist_args.h

src/interfaces/echo.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/util/thread.cpp

src/kernel/types.h

src/interfaces/rpc.h

src/util/fees.cpp

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/attributes.h

src/chainparams.h

src/clientversion.cpp

src/common/signmessage.cpp

src/compat/assumptions.h

src/compat/byteswap.h

src/compat/cpuid.h

src/compat/endian.h

src/compat/stdin.cpp

src/compat/stdin.h

src/core_memusage.h

src/crypto/common.h

src/deploymentinfo.cpp

src/deploymentinfo.h

src/deploymentstatus.cpp

src/deploymentstatus.h

src/dummywallet.cpp

src/external_signer.h

src/indirectmap.h

src/init/basic.cpp

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/logging/categories.h

src/logging/timer.h

src/net_permissions.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/node/warnings.h

src/outputtype.cpp

src/outputtype.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/primitives/block.cpp

src/randomenv.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/support/allocators/secure.h

src/support/allocators/zeroafterfree.h

src/uint256.cpp

src/util/bip32.cpp

src/util/fees.h

src/util/fs.cpp

src/util/result.h

src/util/string.cpp

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

Independent explanations by MyBitcoinExplorer. Not affiliated with or endorsed by Bitcoin Core. Guides are educational and do not replace the source or its tests.

Bitcoin Core source © its contributors, distributed under the MIT license. Original notices and bundled third-party licenses are retained in the source tree.