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

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10.20.2 Release Notes
2====================
3
4Bitcoin Core version 0.20.2 is now available from:
5
6  <https://bitcoincore.org/bin/bitcoin-core-0.20.2/>
7
8This minor release includes 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 Mac)
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 10.12+, 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
40From Bitcoin Core 0.20.0 onwards, macOS versions earlier than 10.12 are no
41longer supported. Additionally, Bitcoin Core does not yet change appearance
42when macOS "dark mode" is activated.
43
44Known Bugs
45==========
46
47The process for generating the source code release ("tarball") has changed in an
48effort to make it more complete, however, there are a few regressions in
49this release:
50
51- The generated `configure` script is currently missing, and you will need to
52  install autotools and run `./autogen.sh` before you can run
53  `./configure`. This is the same as when checking out from git.
54
55- Instead of running `make` simply, you should instead run
56  `BITCOIN_GENBUILD_NO_GIT=1 make`.
57
58Notable changes
59===============
60
61Changes regarding misbehaving peers
62-----------------------------------
63
64Peers that misbehave (e.g. send us invalid blocks) are now referred to as
65discouraged nodes in log output, as they're not (and weren't) strictly banned:
66incoming connections are still allowed from them, but they're preferred for
67eviction.
68
69Furthermore, a few additional changes are introduced to how discouraged
70addresses are treated:
71
72- Discouraging an address does not time out automatically after 24 hours
73  (or the `-bantime` setting). Depending on traffic from other peers,
74  discouragement may time out at an indeterminate time.
75
76- Discouragement is not persisted over restarts.
77
78- There is no method to list discouraged addresses. They are not returned by
79  the `listbanned` RPC. That RPC also no longer reports the `ban_reason`
80  field, as `"manually added"` is the only remaining option.
81
82- Discouragement cannot be removed with the `setban remove` RPC command.
83  If you need to remove a discouragement, you can remove all discouragements by
84  stop-starting your node.
85
86Notification changes
87--------------------
88
89`-walletnotify` notifications are now sent for wallet transactions that are
90removed from the mempool because they conflict with a new block. These
91notifications were sent previously before the v0.19 release, but had been
92broken since that release (bug
93[#18325](https://github.com/bitcoin/bitcoin/issues/18325)).
94
95PSBT changes
96------------
97
98PSBTs will contain both the non-witness utxo and the witness utxo for segwit
99inputs in order to restore compatibility with wallet software that are now
100requiring the full previous transaction for segwit inputs. The witness utxo
101is still provided to maintain compatibility with software which relied on its
102existence to determine whether an input was segwit.
103
1040.20.2 change log
105=================
106
107### P2P protocol and network code
108
109- #19620 Add txids with non-standard inputs to reject filter (sdaftuar)
110- #20146 Send post-verack handshake messages at most once (MarcoFalke)
111
112### Wallet
113
114- #19740 Simplify and fix CWallet::SignTransaction (achow101)
115
116### RPC and other APIs
117
118- #19836 Properly deserialize txs with witness before signing (MarcoFalke)
119- #20731 Add missing description of vout in getrawtransaction help text (benthecarman)
120
121### Build system
122
123- #20142 build: set minimum required Boost to 1.48.0 (fanquake)
124- #20298 use the new plistlib API (jonasschnelli)
125- #20880 gitian: Use custom MacOS code signing tool (achow101)
126- #22190 Use latest signapple commit (achow101)
127
128### Tests and QA
129
130- #19839 Set appveyor vm version to previous Visual Studio 2019 release. (sipsorcery)
131- #19842 Update the vcpkg checkout commit ID in appveyor config. (sipsorcery)
132- #20562 Test that a fully signed tx given to signrawtx is unchanged (achow101)
133
134### Miscellaneous
135
136- #19192 Extract net permissions doc (MarcoFalke)
137- #19777 Correct description for getblockstats's txs field (shesek)
138- #20080 Strip any trailing / in -datadir and -blocksdir paths (hebasto)
139- #20082 fixes read buffer to use min rather than max (EthanHeilman)
140- #20141 Avoid the use of abs64 in timedata (sipa)
141- #20756 Add missing field (permissions) to the getpeerinfo help (amitiuttarwar)
142- #20861 BIP 350: Implement Bech32m and use it for v1+ segwit addresses (sipa)
143- #22124 Update translations after closing 0.20.x on Transifex (hebasto)
144- #21471 fix bech32_encode calls in gen_key_io_test_vectors.py (sipa)
145- #22837 mention bech32m/BIP350 in doc/descriptors.md (sipa)
146
147Credits
148=======
149
150Thanks to everyone who directly contributed to this release:
151
152- Aaron Clauson
153- Amiti Uttarwar
154- Andrew Chow
155- Ethan Heilman
156- fanquake
157- Hennadii Stepanov
158- Jonas Schnelli
159- MarcoFalke
160- Nadav Ivgi
161- Pieter Wuille
162- Suhas Daftuar
163
164As well as to everyone that helped with translations on
165[Transifex](https://www.transifex.com/bitcoin/bitcoin/).
166

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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