www.openbiometrics.org

1) Identify the latest stable release tag such as "v1.1.0"

2) Download all OpenBR source code and switch to that release tag:

$ git clone https://github.com/biometrics/openbr.git
$ cd openbr
$ git checkout <tag>   (eg: git checkout v1.1.0)
$ git submodule init
$ git submodule update

3) Build OpenBR by following the Build Instructions for your OS.