[lug] apt-get

[jd]

Hello, 
  Sometimes when I apt-get update & upgrade my debain 3.0 testing 
box, it will hold packages back. when i see a message like the 
one below...do i need to worry...from a security standpoint? 


mohadib:~# apt-get upgrade 
Reading Package Lists... Done 
Building Dependency Tree... Done 
The following packages have been kept back 
  cpp e2fsprogs g++ gcc gkrellm-bfm iamerican ibritish ispell libpng2 
  libpng2-dev 
0 packages upgraded, 0 newly installed, 0 to remove and 10  not
upgraded. 
mohadib:~#

jd