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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.

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1Bitcoin version 0.7.0 is now available for download at:
2  http://sourceforge.net/projects/bitcoin/files/Bitcoin/bitcoin-0.7.0/
3
4We recommend that everybody running prior versions of bitcoind/Bitcoin-Qt
5upgrade to this release, except for users running Mac OSX 10.5.
6
7Please report bugs using the issue tracker at github:
8  https://github.com/bitcoin/bitcoin/issues
9
10Project source code is hosted at github; you can get
11source-only tarballs/zipballs directly from there:
12  https://github.com/bitcoin/bitcoin/tarball/v0.7.0  # .tar.gz
13  https://github.com/bitcoin/bitcoin/zipball/v0.7.0  # .zip
14
15Ubuntu Linux users can use the "Personal Package Archive" (PPA)
16maintained by Matt Corallo to automatically keep 
17bitcoin up-to-date.  Just type
18  sudo apt-add-repository ppa:bitcoin/bitcoin
19  sudo apt-get update
20in your terminal, then install the bitcoin-qt package:
21  sudo apt-get install bitcoin-qt
22
23
24How to Upgrade
25
26If you are running an older version, shut it down. Wait
27until it has completely shut down (which might take a few minutes for older
28versions), then run the installer (on Windows) or just copy over
29Code:
30/Applications/Bitcoin-Qt
31(on Mac) or
32Code:
33bitcoind/bitcoin-qt
34(on Linux).
35
36If you were running on Linux with a version that might have been compiled
37with a different version of Berkeley DB (for example, if you were using the
38PPA and are switching to the binary release), then run the old version again
39with the -detachdb argument and shut it down; if you do not, then the new
40version will not be able to read the database files and will exit with an error.
41
42Incompatible Changes
43
44* Replaced the 'getmemorypool' RPC command with 'getblocktemplate/submitblock'
45  and 'getrawmempool' commands.
46* Remove deprecated RPC 'getblocknumber'
47
48Bitcoin Improvement Proposals implemented
49
50BIP 22 - 'getblocktemplate', 'submitblock' RPCs
51BIP 34 - block version 2, height in coinbase
52BIP 35 - 'mempool' message, extended 'getdata' message behavior
53
54
55Core bitcoin handling and blockchain database
56
57* Reduced CPU usage, by eliminating some redundant hash calculations
58* Cache signature verifications, to eliminate redundant signature checks
59* Transactions with zero-value outputs are considered non-standard
60* Mining: when creating new blocks, sort 'paid' area by fee-per-kb
61* Database: better validation of on-disk stored data
62* Database: minor optimizations and reliability improvements
63* -loadblock=FILE will import an external block file
64* Additional DoS (denial-of-service) prevention measures
65* New blockchain checkpoint at block 193,000
66
67
68JSON-RPC API
69
70* Internal HTTP server is now thread-per-connection, rather than
71  a single-threaded queue that would stall on network I/O.
72* Internal HTTP server supports HTTP/1.1, pipelined requests and
73  connection keep-alive.
74* Support JSON-RPC 2.0 batches, to encapsulate multiple JSON-RPC requests
75  within a single HTTP request.
76* IPv6 support
77* Added raw transaction API.  See https://gist.github.com/2839617
78* Added 'getrawmempool', to list contents of TX memory pool
79* Added 'getpeerinfo', to list data about each connected network peer
80* Added 'listaddressgroupings' for better coin control
81* Rework getblock call.
82* Remove deprecated RPC 'getblocknumber'
83* Remove superceded RPC 'getmemorypool' (see BIP 22, above)
84* listtransactions output now displays "smart" times for transactions,
85  and 'blocktime' and 'timereceived' fields were added
86
87
88P2P networking
89
90* IPv6 support
91* Tor hidden service support (see doc/Tor.txt)
92* Attempts to fix "stuck blockchain download" problems
93* Replace BDB database "addr.dat" with internally-managed "peers.dat"
94  file containing peer address data.
95* Lower default send buffer from 10MB to 1MB
96* proxy: SOCKS5 by default
97* Support connecting by hostnames passed to proxy
98* Add -seednode connections, and use this instead of DNS seeds when proxied
99* Added -externalip and -discover
100* Add -onlynet to connect only to a given network (IPv4, IPv6, or Tor)
101* Separate listening sockets, -bind=<addr>
102
103
104Qt GUI
105
106* Add UI RPC console / debug window
107* Re-Enable URI handling on Windows, add safety checks and tray-notifications
108* Harmonize the use of ellipsis ("...") to be used in menus, but not on buttons
109* Add 2 labels to the overviewpage that display Wallet and Transaction status (obsolete or current)
110* Extend the optionsdialog (e.g. language selection) and re-work it to a tabbed UI
111* Merge sign/verify message into a single window with tabbed UI
112* Ensure a changed bitcoin unit immediately updates all GUI elements that use units
113* Update QR Code dialog
114* Improve error reporting at startup
115* Fine-grained UI updates for a much smoother UI during block downloads
116* Remove autocorrection of 0/i in addresses in UI
117* Reorganize tray icon menu into more logical order
118* Persistently poll for balance change when number of blocks changed
119* Much better translations
120* Override progress bar design on platforms with segmented progress bars to assist with readability
121* Added 'immature balance' display on the overview page
122* (Windows only): enable ASLR and DEP for bitcoin-qt.exe
123* (Windows only): add meta-data to bitcoin-qt.exe (e.g. description)
124
125Internal codebase
126
127* Additional unit tests
128* Compile warning fixes
129
130
131Miscellaneous
132
133* Reopen debug.log upon SIGHUP
134* Bash programmable completion for bitcoind(1)
135* On supported OS's, each thread is given a useful name
136
137
138Thanks to everybody who contributed to this release:
139
140Chris Moore
141Christian von Roques
142David Joel Schwartz
143Douglas Huff
144Fordy
145Gavin Andresen
146Giel van Schijndel
147Gregory Maxwell
148Jeff Garzik
149Luke Dashjr
150Matt Corallo
151Michael Ford
152Michael Hendricks
153Peter Todd
154Philip Kaufmann
155Pieter Wuille
156R E Broadley
157Ricardo M. Correia
158Rune K. Svendsen
159Scott Ellis
160Stephane Glondu
161Wladimir J. van der Laan
162cardpuncher
163coderrr
164fanquake
165grimd34th
166sje397
167xanatos
168
169Thanks to Sergio Lerner for reporting denial-of-service vulnerabilities fixed in this release.
170

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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