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f00345727bdoc: Update `dependencies.md` for Qt 6 (Hennadii Stepanov)80b917991ebuild, msvc: Update `vcpkg.json` for Qt 6 (Hennadii Stepanov)30dd1f1644ci: Update for Qt 6 (Hennadii Stepanov)629d292f4dtest: Update sanitizer suppressions for Qt 6 (Hennadii Stepanov)551e13abf8guix: Adjust for Qt 6 (Hennadii Stepanov)c3e9bd086cqt: Fix compiling for Windows (Hennadii Stepanov)ab399c4db2depends: Add `native_qt` package (Hennadii Stepanov)248613eb3edepends: Factor out Qt modules' details (Hennadii Stepanov)0268f52a4cdepends: Introduce customizable `$(package)_patches_path` variables (Hennadii Stepanov)5e794e6202depends: Bump `qt` package up to 6.7.3 (Hennadii Stepanov)6d4214925fcmake: Require Qt 6 to build GUI (Hennadii Stepanov) Pull request description: The currently used Qt 5.15 is approaching [EOL](https://www.qt.io/blog/qt-5.15-extended-support-for-subscription-license-holders) and will reach it before the Bitcoin Core v30 release. The recent migration of the build system to CMake makes it possible to switch to Qt 6. This PR updates the OS runtime compatibility requirements for the Bitcoin Core GUI as follows: ### 1. Linux Starting with Qt 6.5.0, the `libxcb-cursor0` package is required to be installed at runtime. ### 2. Windows Cross-compiling does not support LTO. We have to re-add it in a follow-up. A new style plugin causes minor visual glitches, such as  which will be fixed in follow-ups. ### 3. macOS `bitcoin-qt` now uses the [Metal](https://developer.apple.com/metal/) backend. --- **IMPORTANT.** Don't forget to install [Ninja](https://ninja-build.org/). --- For historical context, please refer to: - https://github.com/bitcoin/bitcoin/issues/20627 - https://github.com/bitcoin/bitcoin/pull/24798 --- UPD 2024-10-09. Qt 6.8 has been [released](https://www.qt.io/blog/qt-6.8-released), but it has some [drawbacks](https://github.com/bitcoin/bitcoin/pull/30997#issuecomment-2402990346) for us. As a result, this PR will stick to Qt 6.7. UPD 2025-03-18: [Standard support for Qt 5.15 will end after 26th of May 2025](https://www.qt.io/blog/extended-security-maintenance-for-qt-5.15-begins-may-2025) ACKs for top commit: laanwj: re-ACKf00345727bhodlinator: re-ACKf00345727bTree-SHA512: 367f722e6c3ea4700b5395871c40b6df8c8062fdc822107090449ea4ae4ad2db75cc53a982a678f4c48ce8f9b2d43ed10e6d23b06165ab78713f161db712d895
Bitcoin Core
Setup
Bitcoin Core is the original Bitcoin client and it builds the backbone of the network. It downloads and, by default, stores the entire history of Bitcoin transactions, which requires several hundred gigabytes or more of disk space. Depending on the speed of your computer and network connection, the synchronization process can take anywhere from a few hours to several days or more.
To download Bitcoin Core, visit bitcoincore.org.
Running
The following are some helpful notes on how to run Bitcoin Core on your native platform.
Unix
Unpack the files into a directory and run:
bin/bitcoin-qt(GUI) orbin/bitcoind(headless)
Windows
Unpack the files into a directory, and then run bitcoin-qt.exe.
macOS
Drag Bitcoin Core to your applications folder, and then run Bitcoin Core.
Need Help?
- See the documentation at the Bitcoin Wiki for help and more information.
- Ask for help on Bitcoin StackExchange.
- Ask for help on #bitcoin on Libera Chat. If you don't have an IRC client, you can use web.libera.chat.
- Ask for help on the BitcoinTalk forums, in the Technical Support board.
Building
The following are developer notes on how to build Bitcoin Core on your native platform. They are not complete guides, but include notes on the necessary libraries, compile flags, etc.
- Dependencies
- macOS Build Notes
- Unix Build Notes
- Windows Build Notes
- FreeBSD Build Notes
- OpenBSD Build Notes
- NetBSD Build Notes
Development
The Bitcoin repo's root README contains relevant information on the development process and automated testing.
- Developer Notes
- Productivity Notes
- Release Process
- Source Code Documentation (External Link)
- Translation Process
- Translation Strings Policy
- JSON-RPC Interface
- Unauthenticated REST Interface
- BIPS
- Dnsseed Policy
- Benchmarking
- Internal Design Docs
Resources
- Discuss on the BitcoinTalk forums, in the Development & Technical Discussion board.
- Discuss project-specific development on #bitcoin-core-dev on Libera Chat. If you don't have an IRC client, you can use web.libera.chat.
Miscellaneous
- Assets Attribution
- bitcoin.conf Configuration File
- CJDNS Support
- Files
- Fuzz-testing
- I2P Support
- Init Scripts (systemd/upstart/openrc)
- Managing Wallets
- Multisig Tutorial
- Offline Signing Tutorial
- P2P bad ports definition and list
- PSBT support
- Reduce Memory
- Reduce Traffic
- Tor Support
- Transaction Relay Policy
- ZMQ
License
Distributed under the MIT software license.