- Maintainer
- A Maintainer is someone who maintains a Debian package (packaging, updating, tracking and fixing bugs, etc).
- Debian Maintainer
Debian Maintainer is an official status of people, who are not (yet) Debian Developers, but that are allowed to upload packages, that have a DM field set.
More details at DebianMaintainer.- Debian New Maintainer
The Debian New Maintainer process, is the process of becoming an official Debian Developer (DD).
More details at http://www.debian.org/devel/join/newmaint.