The Patch Queue Manager receives merge requests from developers using the Bazaar version control system, tries to perform the merge and notifies developers of results. Features include:
 * A Web UI showing the current status.
 * The ability to run arbitrary commands to check the merge - for instance a project test suite.
 * Support for a number of VCS's, first and foremore Bazaar, but also tla or arx.
 * Written in python for ease of maintenance.