Inside Bitcoin
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Inside Bitcoin
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The code behind the network, with room to understand it.
Release published 2026-10-28 · Snapshot fetched 2026-11-01. Latest stable release at fetch time; development branches and Git history are excluded. Only the selected code window and visible folders load here.
127.2 Release Notes2=====================4Bitcoin Core version 27.2 is now available from:6<https://bitcoincore.org/bin/bitcoin-core-27.2/>8This release includes various bug fixes and performance9improvements, as well as updated translations.11Please report bugs using the issue tracker at GitHub:13<https://github.com/bitcoin/bitcoin/issues>15To receive security and update notifications, please subscribe to:17<https://bitcoincore.org/en/list/announcements/join/>19How to Upgrade20==============22If you are running an older version, shut it down. Wait until it has completely23shut down (which might take a few minutes in some cases), then run the24installer (on Windows) or just copy over `/Applications/Bitcoin-Qt` (on macOS)25or `bitcoind`/`bitcoin-qt` (on Linux).27Upgrading directly from a version of Bitcoin Core that has reached its EOL is28possible, but it might take some time if the data directory needs to be migrated. Old29wallet versions of Bitcoin Core are generally supported.31Compatibility32==============34Bitcoin Core is supported and extensively tested on operating systems35using the Linux Kernel 3.17+, macOS 11.0+, and Windows 7 and newer. Bitcoin36Core should also work on most other Unix-like systems but is not as37frequently tested on them. It is not recommended to use Bitcoin Core on38unsupported systems.40Notable changes41===============43### P2P45- #30394 net: fix race condition in self-connect detection47### Init49- #30435 init: change shutdown order of load block thread and scheduler51### RPC53- #30357 Fix cases of calls to FillPSBT errantly returning complete=true55### PSBT57- #29855 psbt: Check non witness utxo outpoint early59### Test61- #30552 test: fix constructor of msg_tx63### Doc65- #30504 doc: use proper doxygen formatting for CTxMemPool::cs67### Build69- #30283 upnp: fix build with miniupnpc 2.2.870- #30633 Fixes for GCC 15 compatibility72### CI74- #30193 ci: move ASan job to GitHub Actions from Cirrus CI75- #30299 ci: remove unused bcc variable from workflow77Credits78=======80Thanks to everyone who directly contributed to this release:82- Ava Chow83- Cory Fields84- Martin Zumsande85- Matt Whitlock86- Max Edwards87- Sebastian Falbesoner88- Vasil Dimov89- willcl-ark91As well as to everyone that helped with translations on92[Transifex](https://www.transifex.com/bitcoin/bitcoin/).
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