Inside Bitcoin

Opening the selected file…

₿MyBitcoinExplorer

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

Explore Bitcoin with clarity.

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 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.

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

▤ bips.md

▤ bitcoin_logo_doxygen.png

▤ build-windows-msvc.md

▤ JSON-RPC-interface.md

▤ managing-wallets.md

▤ multiprocess.md

▤ multisig-tutorial.md

▤ offline-signing-tutorial.md

▤ translation_process.md

▤ translation_strings_policy.md

▤ CMakeLists.txtGuide

▤ libbitcoinkernel.pc.in

bitcoin / doc / release-notes / release-notes-23.1.md

Download source ↓

2,666 bytes · SHA-256 753f0da26b7d0a1d… · View upstream ↗

123.1 Release Notes
2==================
3
4Bitcoin Core version 23.1 is now available from:
5
6  <https://bitcoincore.org/bin/bitcoin-core-23.1/>
7
8This release includes new features, various bug fixes and performance
9improvements, as well as updated translations.
10
11Please report bugs using the issue tracker at GitHub:
12
13  <https://github.com/bitcoin/bitcoin/issues>
14
15To receive security and update notifications, please subscribe to:
16
17  <https://bitcoincore.org/en/list/announcements/join/>
18
19How to Upgrade
20==============
21
22If you are running an older version, shut it down. Wait until it has completely
23shut down (which might take a few minutes in some cases), then run the
24installer (on Windows) or just copy over `/Applications/Bitcoin-Qt` (on macOS)
25or `bitcoind`/`bitcoin-qt` (on Linux).
26
27Upgrading directly from a version of Bitcoin Core that has reached its EOL is
28possible, but it might take some time if the data directory needs to be migrated. Old
29wallet versions of Bitcoin Core are generally supported.
30
31Compatibility
32==============
33
34Bitcoin Core is supported and extensively tested on operating systems
35using the Linux kernel, macOS 10.15+, and Windows 7 and newer.  Bitcoin
36Core should also work on most other Unix-like systems but is not as
37frequently tested on them.  It is not recommended to use Bitcoin Core on
38unsupported systems.
39
40### P2P
41
42- #25314 p2p: always set nTime for self-advertisements
43
44### RPC and other APIs
45
46- #25220 rpc: fix incorrect warning for address type p2sh-segwit in createmultisig
47- #25237 rpc: Capture UniValue by ref for rpcdoccheck
48- #25983 Prevent data race for pathHandlers
49- #26275 Fix crash on deriveaddresses when index is 2147483647 (2^31-1)
50
51### Build system
52
53- #25201 windeploy: Renewed windows code signing certificate
54- #25788 guix: patch NSIS to remove .reloc sections from installer stubs
55- #25861 guix: use --build={arch}-guix-linux-gnu in cross toolchain
56- #25985 Revert "build: Use Homebrew's sqlite package if it is available"
57
58### GUI
59
60- #24668 build, qt: bump Qt5 version to 5.15.3
61- gui#631 Disallow encryption of watchonly wallets
62- gui#680 Fixes MacOS 13 segfault by preventing certain notifications
63
64### Tests
65
66- #24454 tests: Fix calculation of external input weights
67
68### Miscellaneous
69
70- #26321 Adjust .tx/config for new Transifex CLI
71
72Credits
73=======
74
75Thanks to everyone who directly contributed to this release:
76
77- Andrew Chow
78- brunoerg
79- Hennadii Stepanov
80- John Moffett
81- MacroFake
82- Martin Zumsande
83- Michael Ford
84- muxator
85- Pavol Rusnak
86- Sebastian Falbesoner
87- W. J. van der Laan
88
89As well as to everyone that helped with translations on
90[Transifex](https://www.transifex.com/bitcoin/bitcoin/).
91

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.

340 guided files · 2,680 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/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

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.