git-email

fast, scalable, distributed revision control system (email add-on)
Git is popular version control system designed to handle very large
projects with speed and efficiency; it is used for many high profile
open source projects, most notably the Linux kernel.
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Git falls in the category of distributed source code management tools.
Every Git working directory is a full-fledged repository with full
revision tracking capabilities, not dependent on network access or a
central server.
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This package provides the git-send-email program for sending series of
patch emails.