Dependencies ============ These are the dependencies currently used by Bitcoin Core. You can find instructions for installing them in the `build-*.md` file for your platform. | Dependency | Version used | Minimum required | CVEs | Shared | [Bundled Qt library](https://doc.qt.io/qt-5/configure-options.html) | | --- | --- | --- | --- | --- | --- | | Berkeley DB | [4.8.30](http://www.oracle.com/technetwork/database/database-technologies/berkeleydb/downloads/index.html) | 4.8.x | No | | | | Boost | [1.64.0](http://www.boost.org/users/download/) | [1.47.0](https://github.com/bitcoin/bitcoin/pull/8920) | No | | | | ccache | [3.3.6](https://ccache.samba.org/download.html) | | No | | | | Clang | | [3.3+](http://llvm.org/releases/download.html) (C++11 support) | | | | | D-Bus | [1.10.18](https://cgit.freedesktop.org/dbus/dbus/tree/NEWS?h=dbus-1.10) | | No | Yes | | | Expat | [2.2.5](https://libexpat.github.io/) | | No | Yes | | | fontconfig | [2.12.1](https://www.freedesktop.org/software/fontconfig/release/) | | No | Yes | | | FreeType | [2.7.1](http://download.savannah.gnu.org/releases/freetype) | | No | | | | GCC | | [4.8+](https://gcc.gnu.org/) | | | | | HarfBuzz-NG | | | | | | | libevent | [2.1.8-stable](https://github.com/libevent/libevent/releases) | 2.0.22 | No | | | | libjpeg | | | | | [Yes](https://github.com/bitcoin/bitcoin/blob/master/depends/packages/qt.mk#L75) | | libpng | | | | | [Yes](https://github.com/bitcoin/bitcoin/blob/master/depends/packages/qt.mk#L74) | | MiniUPnPc | [2.0.20180203](http://miniupnp.free.fr/files) | | No | | | | OpenSSL | [1.0.1k](https://www.openssl.org/source) | | Yes | | | | PCRE | | | | | [Yes](https://github.com/bitcoin/bitcoin/blob/master/depends/packages/qt.mk#L76) | | protobuf | [2.6.3](https://github.com/google/protobuf/releases) | | No | | | | Python (tests) | | [3.4](https://www.python.org/downloads) | | | | | qrencode | [3.4.4](https://fukuchi.org/works/qrencode) | | No | | | | Qt | [5.7.1](https://download.qt.io/official_releases/qt/) | 4.7+ | No | | | | XCB | | | | | [Yes](https://github.com/bitcoin/bitcoin/blob/master/depends/packages/qt.mk#L94) (Linux only) | | xkbcommon | | | | | [Yes](https://github.com/bitcoin/bitcoin/blob/master/depends/packages/qt.mk#L93) (Linux only) | | ZeroMQ | [4.2.2](https://github.com/zeromq/libzmq/releases) | | No | | | | zlib | [1.2.11](http://zlib.net/) | | | | No |