27.2 Release Notes

Bitcoin Core version 27.2 is now available from:

• 🌐 https://bitcoincore.org/bin/bitcoin-core-27.2/
• 🧲 magnet:?xt=urn:btih:f21febdf8c54d2a9b09ed54f7eebb909537fb7b0&dn=bitcoin-core-27.2&tr=udp%3A%2F%2Ftracker.openbittorrent.com%3A80&tr=udp%3A%2F%2Ftracker.opentrackr.org%3A1337%2Fannounce&tr=udp%3A%2F%2Ftracker.coppersurfer.tk%3A6969%2Fannounce&tr=udp%3A%2F%2Ftracker.leechers-paradise.org%3A6969%2Fannounce&tr=udp%3A%2F%2Fexplodie.org%3A6969%2Fannounce&tr=udp%3A%2F%2Ftracker.torrent.eu.org%3A451%2Fannounce&tr=udp%3A%2F%2Ftracker.bitcoin.sprovoost.nl%3A6969&ws=http%3A%2F%2Fbitcoincore.org%2Fbin%2F

This release includes 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 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.

Notable changes

P2P

• #30394 net: fix race condition in self-connect detection

Init

• #30435 init: change shutdown order of load block thread and scheduler

RPC

• #30357 Fix cases of calls to FillPSBT errantly returning complete=true

PSBT

• #29855 psbt: Check non witness utxo outpoint early

Test

• #30552 test: fix constructor of msg_tx

Doc

• #30504 doc: use proper doxygen formatting for CTxMemPool::cs

Build

• #30283 upnp: fix build with miniupnpc 2.2.8
• #30633 Fixes for GCC 15 compatibility

CI

• #30193 ci: move ASan job to GitHub Actions from Cirrus CI
• #30299 ci: remove unused bcc variable from workflow

Credits

Thanks to everyone who directly contributed to this release:

• Ava Chow
• Cory Fields
• Martin Zumsande
• Matt Whitlock
• Max Edwards
• Sebastian Falbesoner
• Vasil Dimov
• willcl-ark

As well as to everyone that helped with translations on Transifex.