Debian Long Term Support
Debian Long Term Support (LTS) is a project to extend the lifetime of all Debian stable releases to (at least) 5 years. Debian LTS is not handled by the Debian security team, but by a separate group of volunteers and companies interested in making it a success. Thus the Debian LTS team takes over security maintenance of the various releases once the Debian Security team stops its work.
- Security announcements for Debian Long Term Support (Debian LTS Advisory also called DLA)
- Wiki page about LTS
- There's also Extended Long Term Support