2.1.7 Debian distribution codenames
Physical directory names in the
dists directory, such as
etch/, are just "codenames".
When a Debian distribution is in the development stage, it has no version
number, but a codename instead. The purpose of these codenames is to make the
mirroring of the Debian distributions easier (if a real directory like
unstable suddenly changed its name to
stable/, a lot
of stuff would have to be needlessly downloaded again).
stable/ is a symbolic link to
testing/ is a symbolic link to
etch/. This means
that Sarge is the current stable distribution and
Etch is the current testing distribution.
unstable/ is a permanent symbolic link to
Sid is always the unstable distribution.