Description:

Bazaar-NG (aka bzr, later to be named Bazaar 2) is a community project
led by canonical to develop a free software distributed revision
control system that is powerful, friendly, scalable and easy to use. A
revision control system is a tool that developers and system
administrators use to keep track of the changes to files over time.
Additionally, a revision control system such as Bazaar-NG eases the
burdens of working together in teams.

Bazaar-NG is a changeset oriented revision control system. Changeset
oriented revision control systems collect the logically related
changes to individual files together into one cohesive group which
typically represent a bug fix or a new feature. These changesets are
easily transferred from one branch to another with simple to use
commands like "bzr pull" and "bzr branch".

Bazaar-NG is also a distributed revision control system. A distributed
revision control such as Bazaar-NG not only allows a project to have
multiple branches, but users to have multiple private branches as
well. Bazaar-NG makes it easy for users to make a branch that is based
off of another branch, make changes and then later merge the branches
back together. Importantly, the general public can make a new branch
based upon an authoritive branch of a project, fix one or more things
and then offer the branch back to the upstream for merging. Bazaar-NG
also supports the sharing of branches between developers.