/etc/debian_version for Etch

[Jerome BENOIT <jgmbenoit@mailsnare.net>]

Hello All,

I have just migrate to Etch, and I have a naive question.
My current /etc/debian_version file still contains "3.1",
which is valid release for Sarge:
1] what must /etc/debian_version contain for an Etch box ?
2] does it really matter ?

Thanks in advance,
Jerome