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c9ed9927bb
956f7322f60db7b8be551c9074b4c633e514079d build: Bump minimum Qt version to 5.11.3 (Hennadii Stepanov) e22d10b936eb7563b2b6611332d9e4c73a2f59d4 ci: Switch from bionic to buster (Hennadii Stepanov) Pull request description: The current minimum Qt version is 5.9.5 which has been set in bitcoin/bitcoin#21286. Distro support: - centos 7 -- unsupported since bitcoin/bitcoin#23511 - centos 8 -- [5.15.2](http://mirror.centos.org/centos/8/AppStream/x86_64/os/Packages/qt5-qtbase-5.15.2-3.el8.x86_64.rpm) - buster -- [5.11.3](https://packages.debian.org/buster/libqt5core5a) - bullseye -- [5.15.2](https://packages.debian.org/bullseye/libqt5core5a) - _bionic_ -- [5.9.5](https://packages.ubuntu.com/bionic/libqt5core5a) - focal -- [5.12.8](https://packages.ubuntu.com/focal/libqt5core5a) As another Ubuntu LTS is coming soon, it seems unreasonable to stick to Qt 5.9 which support [ended](https://www.qt.io/blog/2017/06/07/renewed-qt-support-services) on 2020-05-31. Anyway, it's still possible to build Bitcoin Core GUI with depends on bionic system. Bumping the minimum Qt version allows to make code safer and more reliable, e.g.: - functor-parameter overload of [`QMetaObject::invokeMethod`](https://doc.qt.io/qt-5/qmetaobject.html#invokeMethod-4) - fixed https://bugreports.qt.io/browse/QTBUG-10907 An example of the patch using the functor-overload of `QMetaObject::invokeMethod`: ```diff --- a/src/qt/walletmodel.cpp +++ b/src/qt/walletmodel.cpp @@ -349,7 +349,7 @@ bool WalletModel::changePassphrase(const SecureString &oldPass, const SecureStri static void NotifyUnload(WalletModel* walletModel) { qDebug() << "NotifyUnload"; - bool invoked = QMetaObject::invokeMethod(walletModel, "unload"); + bool invoked = QMetaObject::invokeMethod(walletModel, &WalletModel::unload); assert(invoked); } ``` It uses the same new syntax as signal-slot connection with compile-time check. Also see bitcoin/bitcoin#16348. This PR is intended to be merged early [after](https://github.com/bitcoin/bitcoin/issues/22969) branching `23.x` off. ACKs for top commit: MarcoFalke: cr ACK 956f7322f60db7b8be551c9074b4c633e514079d fanquake: ACK 956f7322f60db7b8be551c9074b4c633e514079d Tree-SHA512: 3d652bcdcd990ce785ad412ed70234d4f27743895e535a53ed44b35d4afc3052e066c4c84f417e30bc53d0a3dd9ebed62444c57b7c765cb1e9aa687fbf866877
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 a few hundred gigabytes of disk space. Depending on the speed of your computer and network connection, the synchronization process can take anywhere from a few hours to a day 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
- Android Build Notes
Development
The Bitcoin repo's root README contains relevant information on the development process and automated testing.
- Developer Notes
- Productivity Notes
- Release Notes
- Release Process
- Source Code Documentation (External Link)
- Translation Process
- Translation Strings Policy
- JSON-RPC Interface
- Unauthenticated REST Interface
- Shared Libraries
- BIPS
- Dnsseed Policy
- Benchmarking
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
- Assumeutxo design
- bitcoin.conf Configuration File
- Files
- Fuzz-testing
- I2P Support
- Init Scripts (systemd/upstart/openrc)
- Managing Wallets
- Multisig 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.