Upgrade from Sarge to Etch

[Alejandro <alejandritox@ciudad.com.ar>]

Dear all,

I have DEbian Sarge and I want to upgrade to Etch (testing). I have read
that I have to modify the sources.list file with the correct
repositories and then execute "apt-get update && apt-get dist-upgrade".

My question is this: is it convenient to keep the security repository
like "stable" or do I have to edit it with "testing" as for main
packages ???

In other words, which is better for Etch (tetsing):

deb http://security.debian.org/ sarge/updates main contrib     or

deb http://security.debian.org/ testing/updates main contrib non-free

Thanks a lot,


Alejandro