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Merge #29780: [27.x] More backports and finalize
910e3e8 doc: update manual pages for v27.0 (fanquake) 2d2a0a3 build: bump version to v27.0 final (fanquake) 9442ea8 doc: import release notes from devwiki (fanquake) fe51ace Update the developer mailing list address. (Edil Medeiros) bde54b7 ci: Print tsan errors to stderr (MarcoFalke) 753c68d ci: Pull in qtbase5-dev instead of seperate low-level libraries (laanwj) c4da61b doc: Suggest installing dev packages for debian/ubuntu qt5 build (laanwj) Pull request description: Currently backports: * #29740 * #29764 * #29782 Pulls release notes: https://github.com/bitcoin-core/bitcoin-devwiki/wiki/27.0-Release-Notes-Draft. Finalizes `v27.0`. ACKs for top commit: achow101: ACK 910e3e8 stickies-v: ACK 910e3e8 - no changes except addressing nits Tree-SHA512: 5dd8c6adaab154699f8ad9a5bda26de54901d3d1d09034a5a6775a37f12b44274d2d5ce6e1a527a6c211b56a75fe154f3ccb37bcbc39882be8299a4f127bfe30
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| Original file line number | Diff line number | Diff line change |
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| @@ -1 +1,217 @@ | ||
| See https://github.com/bitcoin-core/bitcoin-devwiki/wiki/27.0-Release-Notes-Draft | ||
| Bitcoin Core version 27.0 is now available from: | ||
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| <https://bitcoincore.org/bin/bitcoin-core-27.0/> | ||
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| This release includes new features, various bug fixes and performance | ||
| improvements, as well as updated translations. | ||
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| Please report bugs using the issue tracker at GitHub: | ||
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| <https://github.com/bitcoin/bitcoin/issues> | ||
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| To receive security and update notifications, please subscribe to: | ||
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| <https://bitcoincore.org/en/list/announcements/join/> | ||
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| How to Upgrade | ||
| ============== | ||
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| 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). | ||
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| 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. | ||
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| Compatibility | ||
| ============== | ||
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| Bitcoin Core is supported and extensively tested on operating systems | ||
| using the Linux Kernel 3.17+, 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. | ||
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| Notable changes | ||
| =============== | ||
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| libbitcoinconsensus | ||
| ------------------- | ||
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| - libbitcoinconsensus is deprecated and will be removed for v28. This library has | ||
| existed for nearly 10 years with very little known uptake or impact. It has | ||
| become a maintenance burden. | ||
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| The underlying functionality does not change between versions, so any users of | ||
| the library can continue to use the final release indefinitely, with the | ||
| understanding that Taproot is its final consensus update. | ||
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| In the future, libbitcoinkernel will provide a much more useful API that is | ||
| aware of the UTXO set, and therefore be able to fully validate transactions and | ||
| blocks. (#29189) | ||
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| mempool.dat compatibility | ||
| ------------------------- | ||
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| - The `mempool.dat` file created by -persistmempool or the savemempool RPC will | ||
| be written in a new format. This new format includes the XOR'ing of transaction | ||
| contents to mitigate issues where external programs (such as anti-virus) attempt | ||
| to interpret and potentially modify the file. | ||
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| This new format can not be read by previous software releases. To allow for a | ||
| downgrade, a temporary setting `-persistmempoolv1` has been added to fall back | ||
| to the legacy format. (#28207) | ||
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| P2P and network changes | ||
| ----------------------- | ||
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| - BIP324 v2 transport is now enabled by default. It remains possible to disable v2 | ||
| by running with `-v2transport=0`. (#29347) | ||
| - Manual connection options (`-connect`, `-addnode` and `-seednode`) will | ||
| now follow `-v2transport` to connect with v2 by default. They will retry with | ||
| v1 on failure. (#29058) | ||
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| - Network-adjusted time has been removed from consensus code. It is replaced | ||
| with (unadjusted) system time. The warning for a large median time offset | ||
| (70 minutes or more) is kept. This removes the implicit security assumption of | ||
| requiring an honest majority of outbound peers, and increases the importance | ||
| of the node operator ensuring their system time is (and stays) correct to not | ||
| fall out of consensus with the network. (#28956) | ||
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| Mempool Policy Changes | ||
| ---------------------- | ||
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| - Opt-in Topologically Restricted Until Confirmation (TRUC) Transactions policy | ||
| (aka v3 transaction policy) is available for use on test networks when | ||
| `-acceptnonstdtxn=1` is set. By setting the transaction version number to 3, TRUC transactions | ||
| request the application of limits on spending of their unconfirmed outputs. These | ||
| restrictions simplify the assessment of incentive compatibility of accepting or | ||
| replacing TRUC transactions, thus ensuring any replacements are more profitable for | ||
| the node and making fee-bumping more reliable. TRUC transactions are currently | ||
| nonstandard and can only be used on test networks where the standardness rules are | ||
| relaxed or disabled (e.g. with `-acceptnonstdtxn=1`). (#28948) | ||
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| External Signing | ||
| ---------------- | ||
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| - Support for external signing on Windows has been disabled. It will be re-enabled | ||
| once the underlying dependency (Boost Process), has been replaced with a different | ||
| library. (#28967) | ||
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| Updated RPCs | ||
| ------------ | ||
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| - The addnode RPC now follows the `-v2transport` option (now on by default, see above) for making connections. | ||
| It remains possible to specify the transport type manually with the v2transport argument of addnode. (#29239) | ||
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| Build System | ||
| ------------ | ||
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| - A C++20 capable compiler is now required to build Bitcoin Core. (#28349) | ||
| - MacOS releases are configured to use the hardened runtime libraries (#29127) | ||
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| Wallet | ||
| ------ | ||
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| - The CoinGrinder coin selection algorithm has been introduced to mitigate unnecessary | ||
| large input sets and lower transaction costs at high feerates. CoinGrinder | ||
| searches for the input set with minimal weight. Solutions found by | ||
| CoinGrinder will produce a change output. CoinGrinder is only active at | ||
| elevated feerates (default: 30+ sat/vB, based on `-consolidatefeerate`×3). (#27877) | ||
| - The Branch And Bound coin selection algorithm will be disabled when the subtract fee | ||
| from outputs feature is used. (#28994) | ||
| - If the birth time of a descriptor is detected to be later than the first transaction | ||
| involving that descriptor, the birth time will be reset to the earlier time. (#28920) | ||
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| Low-level changes | ||
| ================= | ||
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| Pruning | ||
| ------- | ||
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| - When pruning during initial block download, more blocks will be pruned at each | ||
| flush in order to speed up the syncing of such nodes. (#20827) | ||
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| Init | ||
| ---- | ||
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| - Various fixes to prevent issues where subsequent instances of Bitcoin Core would | ||
| result in deletion of files in use by an existing instance. (#28784, #28946) | ||
| - Improved handling of empty `settings.json` files. (#29144) | ||
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| Credits | ||
| ======= | ||
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| Thanks to everyone who directly contributed to this release: | ||
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| - 22388o⚡️ | ||
| - Aaron Clauson | ||
| - Amiti Uttarwar | ||
| - Andrew Toth | ||
| - Anthony Towns | ||
| - Antoine Poinsot | ||
| - Ava Chow | ||
| - Brandon Odiwuor | ||
| - brunoerg | ||
| - Chris Stewart | ||
| - Cory Fields | ||
| - dergoegge | ||
| - djschnei21 | ||
| - Fabian Jahr | ||
| - fanquake | ||
| - furszy | ||
| - Gloria Zhao | ||
| - Greg Sanders | ||
| - Hennadii Stepanov | ||
| - Hernan Marino | ||
| - iamcarlos94 | ||
| - ismaelsadeeq | ||
| - Jameson Lopp | ||
| - Jesse Barton | ||
| - John Moffett | ||
| - Jon Atack | ||
| - josibake | ||
| - jrakibi | ||
| - Justin Dhillon | ||
| - Kashif Smith | ||
| - kevkevin | ||
| - Kristaps Kaupe | ||
| - L0la L33tz | ||
| - Luke Dashjr | ||
| - Lőrinc | ||
| - marco | ||
| - MarcoFalke | ||
| - Mark Friedenbach | ||
| - Marnix | ||
| - Martin Leitner-Ankerl | ||
| - Martin Zumsande | ||
| - Max Edwards | ||
| - Murch | ||
| - muxator | ||
| - naiyoma | ||
| - Nikodemas Tuckus | ||
| - ns-xvrn | ||
| - pablomartin4btc | ||
| - Peter Todd | ||
| - Pieter Wuille | ||
| - Richard Myers | ||
| - Roman Zeyde | ||
| - Russell Yanofsky | ||
| - Ryan Ofsky | ||
| - Sebastian Falbesoner | ||
| - Sergi Delgado Segura | ||
| - Sjors Provoost | ||
| - stickies-v | ||
| - stratospher | ||
| - Supachai Kheawjuy | ||
| - TheCharlatan | ||
| - UdjinM6 | ||
| - Vasil Dimov | ||
| - w0xlt | ||
| - willcl-ark | ||
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| As well as to everyone that helped with translations on | ||
| [Transifex](https://www.transifex.com/bitcoin/bitcoin/). |