Bitcoin Core integration/staging tree
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laanwj cfb0eea91e
Merge bitcoin/bitcoin#25317: 22.x Backport new Windows code signing certificate
4 months ago
.github doc: Remove label from good first issue template 2 years ago
.tx qt: Bump transifex slug for 22.x 1 year ago
build-aux/m4 build, qt: Fix typo in QtInputSupport check 7 months ago
build_msvc build: Bump version to 22.0.0rc1 1 year ago
ci ci: Replace soon EOL hirsute with jammy 7 months ago
contrib windeploy: Renewed windows code signing certificate 4 months ago
depends build: patch qt to explicitly define previously implicit header include 7 months ago
doc doc: Add 23061 release notes 7 months ago
share doc: add maxuploadtarget to bitcoin.conf example 1 year ago
src Merge bitcoin/bitcoin#25242: [22.x] rpc: Capture potentially large UniValue by ref for rpcdoccheck 4 months ago
test Swap out hashlib.ripemd160 for own implementation 4 months ago
.appveyor.yml Switch Appveyor CI to VS2019 stable image 1 year ago
.cirrus.yml ci: Replace soon EOL hirsute with jammy 7 months ago
.editorconfig Add EditorConfig file. 2 years ago
.gitattributes Separate protocol versioning from clientversion 8 years ago
.gitignore build: add *~ to .gitignore 1 year ago
.python-version Bump minimum python version to 3.6 2 years ago
.style.yapf test: .style.yapf: Set column_limit=160 4 years ago doc: Fix external links (IRC, ...) 1 year ago
COPYING doc: Update license year range to 2021 2 years ago Update INSTALL landing redirection notice for build instructions. 6 years ago Merge bitcoin/bitcoin#22234: build: Mark print-% target as phony. 1 year ago doc: Rework internal and external links 2 years ago
REVIEWERS Update REVIEWERS: I've found that I keep track of PRs in need of review without the need for DrahtBot's automated notification :) 1 year ago doc: Remove explicit mention of version from 3 years ago scripted-diff: Bump copyright of files changed in 2019 3 years ago build: Restrict check for CRC32C intrinsic to aarch64 7 months ago build: remove libcrypto as internal dependency in libbitcoinconsensus.pc 3 years ago

Bitcoin Core integration/staging tree

For an immediately usable, binary version of the Bitcoin Core software, see

Further information about Bitcoin Core is available in the doc folder.

What is Bitcoin?

Bitcoin is an experimental digital currency that enables instant payments to anyone, anywhere in the world. Bitcoin uses peer-to-peer technology to operate with no central authority: managing transactions and issuing money are carried out collectively by the network. Bitcoin Core is the name of open source software which enables the use of this currency.

For more information read the original Bitcoin whitepaper.


Bitcoin Core is released under the terms of the MIT license. See COPYING for more information or see

Development Process

The master branch is regularly built (see doc/build-*.md for instructions) and tested, but it is not guaranteed to be completely stable. Tags are created regularly from release branches to indicate new official, stable release versions of Bitcoin Core.

The repository is used exclusively for the development of the GUI. Its master branch is identical in all monotree repositories. Release branches and tags do not exist, so please do not fork that repository unless it is for development reasons.

The contribution workflow is described in and useful hints for developers can be found in doc/


Testing and code review is the bottleneck for development; we get more pull requests than we can review and test on short notice. Please be patient and help out by testing other people's pull requests, and remember this is a security-critical project where any mistake might cost people lots of money.

Automated Testing

Developers are strongly encouraged to write unit tests for new code, and to submit new unit tests for old code. Unit tests can be compiled and run (assuming they weren't disabled in configure) with: make check. Further details on running and extending unit tests can be found in /src/test/

There are also regression and integration tests, written in Python. These tests can be run (if the test dependencies are installed) with: test/functional/

The CI (Continuous Integration) systems make sure that every pull request is built for Windows, Linux, and macOS, and that unit/sanity tests are run automatically.

Manual Quality Assurance (QA) Testing

Changes should be tested by somebody other than the developer who wrote the code. This is especially important for large or high-risk changes. It is useful to add a test plan to the pull request description if testing the changes is not straightforward.


Changes to translations as well as new translations can be submitted to Bitcoin Core's Transifex page.

Translations are periodically pulled from Transifex and merged into the git repository. See the translation process for details on how this works.

Important: We do not accept translation changes as GitHub pull requests because the next pull from Transifex would automatically overwrite them again.