apt archives

[Bas Spitters]

On Friday 23 June 2006 21:00, Bas Spitters wrote:
> Dear List,
>
> What is the status of archives like:
> deb http://kubuntu.org/packages/kde-latest dapper main
> deb http://kubuntu.org/packages/kde-353 dapper main
>
> I would like to use a new KDE, but do not want me system to become
> unstable. I seems that these archives regularly provide updates. Is it safe
> to apply them or will this make me system unstable?

Reading my own message again, this may have been unclear. My question is:
Is it safe to include these lines in my sources.list and upgrade each time 
this is suggested. The question was not about the stability of KDE.

Thanks,

Bas