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23.0 Release Notes
==================
Bitcoin Core version 23.0 is now available from:
<https://bitcoincore.org/bin/bitcoin-core-23.0/>
This release includes new features, various bug fixes and performance
improvements, as well as updated translations.
Please report bugs using the issue tracker at GitHub:
<https://github.com/bitcoin/bitcoin/issues>
To receive security and update notifications, please subscribe to:
<https://bitcoincore.org/en/list/announcements/join/>
How to Upgrade
==============
If you are running an older version, shut it down. Wait until it has completely
shut down (which might take a few minutes in some cases), then run the
installer (on Windows) or just copy over `/Applications/Bitcoin-Qt` (on Mac)
or `bitcoind`/`bitcoin-qt` (on Linux).
Upgrading directly from a version of Bitcoin Core that has reached its EOL is
possible, but it might take some time if the data directory needs to be migrated. Old
wallet versions of Bitcoin Core are generally supported.
Compatibility
==============
Bitcoin Core is supported and extensively tested on operating systems
using the Linux kernel, macOS 10.15+, and Windows 7 and newer. Bitcoin
Core should also work on most other Unix-like systems but is not as
frequently tested on them. It is not recommended to use Bitcoin Core on
unsupported systems.
Notable changes
===============
P2P and network changes
-----------------------
- A bitcoind node will no longer rumour addresses to inbound peers by default.
They will become eligible for address gossip after sending an ADDR, ADDRV2,
or GETADDR message. (#21528)
- Before this release, Bitcoin Core had a strong preference to try to connect only to peers that listen on port 8333. As a result of that, Bitcoin nodes listening on non-standard ports would likely not get any Bitcoin Core peers connecting to them. This preference has been removed. (#23542)
- Full support has been added for the CJDNS network. See the new option `-cjdnsreachable` and [doc/cjdns.md](https://github.com/bitcoin/bitcoin/tree/23.x/doc/cjdns.md) (#23077)
Fee estimation changes
----------------------
- Fee estimation now takes the feerate of replacement (RBF) transactions into
account. (#22539)
Rescan startup parameter removed
--------------------------------
The `-rescan` startup parameter has been removed. Wallets which require
rescanning due to corruption will still be rescanned on startup.
Otherwise, please use the `rescanblockchain` RPC to trigger a rescan. (#23123)
Tracepoints and Userspace, Statically Defined Tracing support
-------------------------------------------------------------
Bitcoin Core release binaries for Linux now include experimental tracepoints which
act as an interface for process-internal events. These can be used for review,
debugging, monitoring, and more. The tracepoint API is semi-stable. While the API
is tested, process internals might change between releases requiring changes to the
tracepoints. Information about the existing tracepoints can be found under
[doc/tracing.md](https://github.com/bitcoin/bitcoin/blob/23.x/doc/tracing.md) and
usage examples are provided in [contrib/tracing/](https://github.com/bitcoin/bitcoin/tree/23.x/contrib/tracing).
Updated RPCs
------------
- The `validateaddress` RPC now returns an `error_locations` array for invalid
addresses, with the indices of invalid character locations in the address (if
known). For example, this will attempt to locate up to two Bech32 errors, and
return their locations if successful. Success and correctness are only guaranteed
if fewer than two substitution errors have been made.
The error message returned in the `error` field now also returns more specific
errors when decoding fails. (#16807)
- The `-deprecatedrpc=addresses` configuration option has been removed. RPCs
`gettxout`, `getrawtransaction`, `decoderawtransaction`, `decodescript`,
`gettransaction verbose=true` and REST endpoints `/rest/tx`, `/rest/getutxos`,
`/rest/block` no longer return the `addresses` and `reqSigs` fields, which
were previously deprecated in 22.0. (#22650)
- The `getblock` RPC command now supports verbosity level 3 containing transaction inputs'
`prevout` information. The existing `/rest/block/` REST endpoint is modified to contain
this information too. Every `vin` field will contain an additional `prevout` subfield
describing the spent output. `prevout` contains the following keys:
- `generated` - true if the spent coins was a coinbase.
- `height`
- `value`
- `scriptPubKey`
- The top-level fee fields `fee`, `modifiedfee`, `ancestorfees` and `descendantfees`
returned by RPCs `getmempoolentry`,`getrawmempool(verbose=true)`,
`getmempoolancestors(verbose=true)` and `getmempooldescendants(verbose=true)`
are deprecated and will be removed in the next major version (use
`-deprecated=fees` if needed in this version). The same fee fields can be accessed
through the `fees` object in the result. WARNING: deprecated
fields `ancestorfees` and `descendantfees` are denominated in sats, whereas all
fields in the `fees` object are denominated in BTC. (#22689)
- Both `createmultisig` and `addmultisigaddress` now include a `warnings`
field, which will show a warning if a non-legacy address type is requested
when using uncompressed public keys. (#23113)
Changes to wallet related RPCs can be found in the Wallet section below.
New RPCs
--------
- Information on soft fork status has been moved from `getblockchaininfo`
to the new `getdeploymentinfo` RPC which allows querying soft fork status at any
block, rather than just at the chain tip. Inclusion of soft fork
status in `getblockchaininfo` can currently be restored using the
configuration `-deprecatedrpc=softforks`, but this will be removed in
a future release. Note that in either case, the `status` field
now reflects the status of the current block rather than the next
block. (#23508)
Files
-----
* On startup, the list of banned hosts and networks (via `setban` RPC) in
`banlist.dat` is ignored and only `banlist.json` is considered. Bitcoin Core
version 22.x is the only version that can read `banlist.dat` and also write
it to `banlist.json`. If `banlist.json` already exists, version 22.x will not
try to translate the `banlist.dat` into json. After an upgrade, `listbanned`
can be used to double check the parsed entries. (#22570)
Updated settings
----------------
- In previous releases, the meaning of the command line option
`-persistmempool` (without a value provided) incorrectly disabled mempool
persistence. `-persistmempool` is now treated like other boolean options to
mean `-persistmempool=1`. Passing `-persistmempool=0`, `-persistmempool=1`
and `-nopersistmempool` is unaffected. (#23061)
- `-maxuploadtarget` now allows human readable byte units [k|K|m|M|g|G|t|T].
E.g. `-maxuploadtarget=500g`. No whitespace, +- or fractions allowed.
Default is `M` if no suffix provided. (#23249)
- If `-proxy=` is given together with `-noonion` then the provided proxy will
not be set as a proxy for reaching the Tor network. So it will not be
possible to open manual connections to the Tor network for example with the
`addnode` RPC. To mimic the old behavior use `-proxy=` together with
`-onlynet=` listing all relevant networks except `onion`. (#22834)
Tools and Utilities
-------------------
- Update `-getinfo` to return data in a user-friendly format that also reduces vertical space. (#21832)
- CLI `-addrinfo` now returns a single field for the number of `onion` addresses
known to the node instead of separate `torv2` and `torv3` fields, as support
for Tor V2 addresses was removed from Bitcoin Core in 22.0. (#22544)
Wallet
------
- Descriptor wallets are now the default wallet type. Newly created wallets
will use descriptors unless `descriptors=false` is set during `createwallet`, or
the `Descriptor wallet` checkbox is unchecked in the GUI.
Note that wallet RPC commands like `importmulti` and `dumpprivkey` cannot be
used with descriptor wallets, so if your client code relies on these commands
without specifying `descriptors=false` during wallet creation, you will need
to update your code.
- Newly created descriptor wallets will contain an automatically generated `tr()`
descriptor which allows for creating single key Taproot receiving addresses.
- `upgradewallet` will now automatically flush the keypool if upgrading
from a non-HD wallet to an HD wallet, to immediately start using the
newly-generated HD keys. (#23093)
- a new RPC `newkeypool` has been added, which will flush (entirely
clear and refill) the keypool. (#23093)
- `listunspent` now includes `ancestorcount`, `ancestorsize`, and
`ancestorfees` for each transaction output that is still in the mempool.
(#12677)
- `lockunspent` now optionally takes a third parameter, `persistent`, which
causes the lock to be written persistently to the wallet database. This
allows UTXOs to remain locked even after node restarts or crashes. (#23065)
- `receivedby` RPCs now include coinbase transactions. Previously, the
following wallet RPCs excluded coinbase transactions: `getreceivedbyaddress`,
`getreceivedbylabel`, `listreceivedbyaddress`, `listreceivedbylabel`. This
release changes this behaviour and returns results accounting for received
coins from coinbase outputs. The previous behaviour can be restored using the
configuration `-deprecatedrpc=exclude_coinbase`, but may be removed in a
future release. (#14707)
- A new option in the same `receivedby` RPCs, `include_immature_coinbase`
(default=`false`), determines whether to account for immature coinbase
transactions. Immature coinbase transactions are coinbase transactions that
have 100 or fewer confirmations, and are not spendable. (#14707)
GUI changes
-----------
- UTXOs which are locked via the GUI are now stored persistently in the
wallet database, so are not lost on node shutdown or crash. (#23065)
- The Bech32 checkbox has been replaced with a dropdown for all address types, including the new Bech32m (BIP-350) standard for Taproot enabled wallets.
Low-level changes
=================
RPC
---
- `getblockchaininfo` now returns a new `time` field, that provides the chain tip time. (#22407)
Tests
-----
- For the `regtest` network the activation heights of several softforks were
set to block height 1. They can be changed by the runtime setting
`-testactivationheight=name@height`. (#22818)
Credits
=======
Thanks to everyone who directly contributed to this release:
- 0xb10c
- 0xree
- Aaron Clauson
- Adrian-Stefan Mares
- agroce
- aitorjs
- Alex Groce
- amadeuszpawlik
- Amiti Uttarwar
- Andrew Chow
- Andrew Poelstra
- Andrew Toth
- anouar kappitou
- Anthony Towns
- Antoine Poinsot
- Arnab Sen
- Ben Woosley
- benthecarman
- Bitcoin Hodler
- BitcoinTsunami
- brianddk
- Bruno Garcia
- CallMeMisterOwl
- Calvin Kim
- Carl Dong
- Cory Fields
- Cuong V. Nguyen
- Darius Parvin
- Dhruv Mehta
- Dimitri Deijs
- Dimitris Apostolou
- Dmitry Goncharov
- Douglas Chimento
- eugene
- Fabian Jahr
- fanquake
- Florian Baumgartl
- fyquah
- Gleb Naumenko
- glozow
- Gregory Sanders
- Heebs
- Hennadii Stepanov
- hg333
- HiLivin
- Igor Cota
- Jadi
- James O'Beirne
- Jameson Lopp
- Jarol Rodriguez
- Jeremy Rand
- Jeremy Rubin
- Joan Karadimov
- John Newbery
- Jon Atack
- João Barbosa
- josibake
- junderw
- Karl-Johan Alm
- katesalazar
- Kennan Mell
- Kiminuo
- Kittywhiskers Van Gogh
- Klement Tan
- Kristaps Kaupe
- Kuro
- Larry Ruane
- lsilva01
- lucash-dev
- Luke Dashjr
- MarcoFalke
- Martin Leitner-Ankerl
- Martin Zumsande
- Matt Corallo
- Matt Whitlock
- MeshCollider
- Michael Dietz
- Murch
- naiza
- Nathan Garabedian
- Nelson Galdeman
- NikhilBartwal
- Niklas Gögge
- node01
- nthumann
- Pasta
- Patrick Kamin
- Pavel Safronov
- Pavol Rusnak
- Perlover
- Pieter Wuille
- practicalswift
- pradumnasaraf
- pranabp-bit
- Prateek Sancheti
- Prayank
- Rafael Sadowski
- rajarshimaitra
- randymcmillan
- ritickgoenka
- Rob Fielding
- Rojar Smith
- Russell Yanofsky
- S3RK
- Saibato
- Samuel Dobson
- sanket1729
- seaona
- Sebastian Falbesoner
- sh15h4nk
- Shashwat
- Shorya
- ShubhamPalriwala
- Shubhankar Gambhir
- Sjors Provoost
- sogoagain
- sstone
- stratospher
- Suriyaa Rocky Sundararuban
- Taeik Lim
- TheCharlatan
- Tim Ruffing
- Tobin Harding
- Troy Giorshev
- Tyler Chambers
- Vasil Dimov
- W. J. van der Laan
- w0xlt
- willcl-ark
- William Casarin
- zealsham
- Zero-1729
As well as to everyone that helped with translations on
[Transifex](https://www.transifex.com/bitcoin/bitcoin/).
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