RE: libc6-2.1.1 ... safe to install?

[J Horacio MG <homega@vlc.servicom.es>]

~> > I have some packages which require version 2.1.1 from libc6 (which I
~> > expect it can be found in potato).  My question is, do I have to expect
~> > any problems if I install it in slink, or is it just as straight forward
~> > as upgrading any other package?
~> 
~> If you upgrade a slink installation to libc6 2.1.1, you will probably have
~> some problems.  I know I did, and I went back to libc6 2.07
~> 
~> I suppose you could upgrade to potato and avoid the problems.  
~> 
~> If you try it on a slink system, do not go back from the potato version of
~> ld.so to the slink version or you will break the system; I just kept the newer
~> ld.so when I went back to the older libc6.

That sounds as if upgrading to libc6 2.1.1 is not a good idea, at least
not if it's just for a couple of packages.  But, does it mean libc6
2.1.1 is not stable, or it means it's stable but not fit to use with a
system packed with (and for) a previous version?

If I finally decided to do an upgrade, which other packages/libraries
should I also upgrade for sanity sake?

TIA

Horacio