See https://2ndquadrant.com/resources/bdr/ and http://bdr-project.org/docs/ for documentation on the installation and use of BDR. This source tree contains BDR for patched PostgreSQL 9.4. See INSTALL.src for details. The bdr-plugin/next branch is the development tree for the BDR plugin. Stable branches are named in the form bdr-plugin/RELX_Y_STABLE, e.g. bdr-plugin/REL0_9_STABLE. Tagged releases are named bdr-plugin/X_Y_Z, e.g. bdr-plugin/0.9.0 . BDR requires a patched PostgreSQL 9.4, which is in branches prefixed with bdr-pg/ . Tagged BDR plugin releases specify the required bdr-pg version in the tag commit message.