diff options
Diffstat (limited to 'doc/release-notes.md')
| -rw-r--r-- | doc/release-notes.md | 336 |
1 files changed, 335 insertions, 1 deletions
diff --git a/doc/release-notes.md b/doc/release-notes.md index b40e1296d0..23bdfd7dd6 100644 --- a/doc/release-notes.md +++ b/doc/release-notes.md @@ -1 +1,335 @@ -See https://github.com/bitcoin-core/bitcoin-devwiki/wiki/26.0%E2%80%90Release%E2%80%90Notes%E2%80%90Draft.
\ No newline at end of file +26.0 rc3 Release Notes +====================== + +Bitcoin Core version 26.0 is now available from: + + <https://bitcoincore.org/bin/bitcoin-core-26.0/> + +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 macOS) +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 11.0+, 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 +----------------------- + +- Experimental support for the v2 transport protocol defined in + [BIP324](https://github.com/bitcoin/bips/blob/master/bip-0324.mediawiki) was added. + It is off by default, but when enabled using `-v2transport` it will be negotiated + on a per-connection basis with other peers that support it too. The existing + v1 transport protocol remains fully supported. + +- Nodes with multiple reachable networks will actively try to have at least one + outbound connection to each network. This improves individual resistance to + eclipse attacks and network level resistance to partition attacks. Users no + longer need to perform active measures to ensure being connected to multiple + enabled networks. (#27213) + +Pruning +------- + +- When using assumeutxo with `-prune`, the prune budget may be exceeded if it is set + lower than 1100MB (i.e. `MIN_DISK_SPACE_FOR_BLOCK_FILES * 2`). Prune budget is normally + split evenly across each chainstate, unless the resulting prune budget per chainstate + is beneath `MIN_DISK_SPACE_FOR_BLOCK_FILES` in which case that value will be used. (#27596) + +Updated RPCs +------------ + +- Setting `-rpcserialversion=0` is deprecated and will be removed in + a future release. It can currently still be used by also adding + the `-deprecatedrpc=serialversion` option. (#28448) + +- The `hash_serialized_2` value has been removed from `gettxoutsetinfo` since the value it + calculated contained a bug and did not take all data into account. It is superseded by + `hash_serialized_3` which provides the same functionality but serves the correctly calculated hash. (#28685) + +- New fields `transport_protocol_type` and `session_id` were added to the `getpeerinfo` RPC to indicate + whether the v2 transport protocol is in use, and if so, what the session id is. + +- A new argument `v2transport` was added to the `addnode` RPC to indicate whether a v2 transaction connection + is to be attempted with the peer. + +- [Miniscript](https://bitcoin.sipa.be/miniscript/) expressions can now be used in Taproot descriptors for all RPCs working with descriptors. (#27255) + +- `finalizepsbt` is now able to finalize a PSBT with inputs spending [Miniscript](https://bitcoin.sipa.be/miniscript/)-compatible Taproot leaves. (#27255) + +Changes to wallet related RPCs can be found in the Wallet section below. + +New RPCs +-------- + +- `loadtxoutset` has been added, which allows loading a UTXO snapshot of the format + generated by `dumptxoutset`. Once this snapshot is loaded, its contents will be + deserialized into a second chainstate data structure, which is then used to sync to + the network's tip. + + Meanwhile, the original chainstate will complete the initial block download process in + the background, eventually validating up to the block that the snapshot is based upon. + + The result is a usable bitcoind instance that is current with the network tip in a + matter of minutes rather than hours. UTXO snapshot are typically obtained via + third-party sources (HTTP, torrent, etc.) which is reasonable since their contents + are always checked by hash. + + You can find more information on this process in the `assumeutxo` design + document (<https://github.com/bitcoin/bitcoin/blob/master/doc/design/assumeutxo.md>). + + `getchainstates` has been added to aid in monitoring the assumeutxo sync process. + +- A new `getprioritisedtransactions` RPC has been added. It returns a map of all fee deltas created by the + user with prioritisetransaction, indexed by txid. The map also indicates whether each transaction is + present in the mempool. (#27501) + +- A new RPC, `submitpackage`, has been added. It can be used to submit a list of raw hex +transactions to the mempool to be evaluated as a package using consensus and mempool policy rules. +These policies include package CPFP, allowing a child with high fees to bump a parent below the +mempool minimum feerate (but not minimum relay feerate). (#27609) + + - Warning: successful submission does not mean the transactions will propagate throughout the + network, as package relay is not supported. + + - Not all features are available. The package is limited to a child with all of its + unconfirmed parents, and no parent may spend the output of another parent. Also, package + RBF is not supported. Refer to doc/policy/packages.md for more details on package policies + and limitations. + + - This RPC is experimental. Its interface may change. + +- A new RPC `getaddrmaninfo` has been added to view the distribution of addresses in the new and tried table of the + node's address manager across different networks(ipv4, ipv6, onion, i2p, cjdns). The RPC returns count of addresses + in new and tried table as well as their sum for all networks. (#27511) + +- A new `importmempool` RPC has been added. It loads a valid `mempool.dat` file and attempts to + add its contents to the mempool. This can be useful to import mempool data from another node + without having to modify the datadir contents and without having to restart the node. (#27460) + - Warning: Importing untrusted files is dangerous, especially if metadata from the file is taken over. + - If you want to apply fee deltas, it is recommended to use the `getprioritisedtransactions` and + `prioritisetransaction` RPCs instead of the `apply_fee_delta_priority` option to avoid + double-prioritising any already-prioritised transactions in the mempool. + +Updated settings +---------------- + +- `bitcoind` and `bitcoin-qt` will now raise an error on startup + if a datadir that is being used contains a bitcoin.conf file that + will be ignored, which can happen when a datadir= line is used in + a bitcoin.conf file. The error message is just a diagnostic intended + to prevent accidental misconfiguration, and it can be disabled to + restore the previous behavior of using the datadir while ignoring + the bitcoin.conf contained in it. (#27302) + +- Passing an invalid `-debug`, `-debugexclude`, or `-loglevel` logging configuration + option now raises an error, rather than logging an easily missed warning. (#27632) + +Changes to GUI or wallet related settings can be found in the GUI or Wallet section below. + +New settings +------------ + +Tools and Utilities +------------------- + +- A new `bitcoinconsensus_verify_script_with_spent_outputs` function is available in libconsensus which optionally accepts the spent outputs of the transaction being verified. +- A new `bitcoinconsensus_SCRIPT_FLAGS_VERIFY_TAPROOT` flag is available in libconsensus that will verify scripts with the Taproot spending rules. + +Wallet +------ + +- Wallet loading has changed in this release. Wallets with some corrupted records that could be + previously loaded (with warnings) may no longer load. For example, wallets with corrupted + address book entries may no longer load. If this happens, it is recommended + load the wallet in a previous version of Bitcoin Core and import the data into a new wallet. + Please also report an issue to help improve the software and make wallet loading more robust + in these cases. (#24914) + +- The `gettransaction`, `listtransactions`, `listsinceblock` RPCs now return + the `abandoned` field for all transactions. Previously, the "abandoned" field + was only returned for sent transactions. (#25158) + +- The `listdescriptors`, `decodepsbt` and similar RPC methods now show `h` rather than apostrophe (`'`) to indicate + hardened derivation. This does not apply when using the `private` parameter, which + matches the marker used when descriptor was generated or imported. Newly created + wallets use `h`. This change makes it easier to handle descriptor strings manually. + E.g. the `importdescriptors` RPC call is easiest to use `h` as the marker: `'["desc": ".../0h/..."]'`. + With this change `listdescriptors` will use `h`, so you can copy-paste the result, + without having to add escape characters or switch `'` to 'h' manually. + Note that this changes the descriptor checksum. + For legacy wallets the `hdkeypath` field in `getaddressinfo` is unchanged, + nor is the serialization format of wallet dumps. (#26076) + +- The `getbalances` RPC now returns a `lastprocessedblock` JSON object which contains the wallet's last processed block + hash and height at the time the balances were calculated. This result shouldn't be cached because importing new keys could invalidate it. (#26094) + +- The `gettransaction` RPC now returns a `lastprocessedblock` JSON object which contains the wallet's last processed block + hash and height at the time the transaction information was generated. (#26094) + +- The `getwalletinfo` RPC now returns a `lastprocessedblock` JSON object which contains the wallet's last processed block + hash and height at the time the wallet information was generated. (#26094) + +- Coin selection and transaction building now accounts for unconfirmed low-feerate ancestor transactions. When it is necessary to spend unconfirmed outputs, the wallet will add fees to ensure that the new transaction with its ancestors will achieve a mining score equal to the feerate requested by the user. (#26152) + +- For RPC methods which accept `options` parameters ((`importmulti`, `listunspent`, + `fundrawtransaction`, `bumpfee`, `send`, `sendall`, `walletcreatefundedpsbt`, + `simulaterawtransaction`), it is now possible to pass the options as named + parameters without the need for a nested object. (#26485) + +This means it is possible make calls like: + +```sh +src/bitcoin-cli -named bumpfee txid fee_rate=100 +``` + +instead of + +```sh +src/bitcoin-cli -named bumpfee txid options='{"fee_rate": 100}' +``` + +- The `deprecatedrpc=walletwarningfield` configuration option has been removed. + The `createwallet`, `loadwallet`, `restorewallet` and `unloadwallet` RPCs no + longer return the "warning" string field. The same information is provided + through the "warnings" field added in v25.0, which returns a JSON array of + strings. The "warning" string field was deprecated also in v25.0. (#27757) + +- The `signrawtransactionwithkey`, `signrawtransactionwithwallet`, + `walletprocesspsbt` and `descriptorprocesspsbt` calls now return the more + specific RPC_INVALID_PARAMETER error instead of RPC_MISC_ERROR if their + sighashtype argument is malformed. (#28113) + +- RPC `walletprocesspsbt`, and `descriptorprocesspsbt` return + object now includes field `hex` (if the transaction + is complete) containing the serialized transaction + suitable for RPC `sendrawtransaction`. (#28414) + +- It's now possible to use [Miniscript](https://bitcoin.sipa.be/miniscript/) inside Taproot leaves for descriptor wallets. (#27255) + +GUI changes +----------- + +- The transaction list in the GUI no longer provides a special category for "payment to yourself". Now transactions that have both inputs and outputs that affect the wallet are displayed on separate lines for spending and receiving. (gui#119) + +- A new menu option allows migrating a legacy wallet based on keys and implied output script types stored in BerkeleyDB (BDB) to a modern wallet that uses descriptors stored in SQLite. (gui#738) + +- The PSBT operations dialog marks outputs paying your own wallet with "own address". (gui#740) + +- The ability to create legacy wallets is being removed. (gui#764) + +Low-level changes +================= + +Tests +----- + +- Non-standard transactions are now disabled by default on testnet + for relay and mempool acceptance. The previous behaviour can be + re-enabled by setting `-acceptnonstdtxn=1`. (#28354) + +Credits +======= + +Thanks to everyone who directly contributed to this release: + +- 0xb10c +- Amiti Uttarwar +- Andrew Chow +- Andrew Toth +- Anthony Towns +- Antoine Poinsot +- Antoine Riard +- Ari +- Aurèle Oulès +- Ayush Singh +- Ben Woosley +- Brandon Odiwuor +- Brotcrunsher +- brunoerg +- Bufo +- Carl Dong +- Casey Carter +- Cory Fields +- David Álvarez Rosa +- dergoegge +- dhruv +- dimitaracev +- Erik Arvstedt +- Erik McKelvey +- Fabian Jahr +- furszy +- glozow +- Greg Sanders +- Harris +- Hennadii Stepanov +- Hernan Marino +- ishaanam +- ismaelsadeeq +- Jake Rawsthorne +- James O'Beirne +- John Moffett +- Jon Atack +- josibake +- kevkevin +- Kiminuo +- Larry Ruane +- Luke Dashjr +- MarcoFalke +- Marnix +- Martin Leitner-Ankerl +- Martin Zumsande +- Matthew Zipkin +- Michael Ford +- Michael Tidwell +- mruddy +- Murch +- ns-xvrn +- pablomartin4btc +- Pieter Wuille +- Reese Russell +- Rhythm Garg +- Ryan Ofsky +- Sebastian Falbesoner +- Sjors Provoost +- stickies-v +- stratospher +- Suhas Daftuar +- TheCharlatan +- Tim Neubauer +- Tim Ruffing +- Vasil Dimov +- virtu +- vuittont60 +- willcl-ark +- Yusuf Sahin HAMZA + +As well as to everyone that helped with translations on +[Transifex](https://www.transifex.com/bitcoin/bitcoin/). |