Lenny Security Improvements

[Martin Bartenberger <martin.bartenberger@fm5.at>]

Hi List,

while reading the release information for the new Debian Lenny I noticed 
some informations about security improvements in Lenny:

"Further improvements in system security include the installation of 
available security updates before the first reboot by the Debian 
Installer, the reduction of setuid root binaries and open ports in the 
standard installation, and the use of GCC hardening features in the 
builds of several security-critical packages. Various applications have 
specific improvements, too."
http://www.us.debian.org/News/2009/20090214.en.html

I wonder where to find more information about these improvements? Which 
setuid root binaries where reduced, which standard ports closed, etc.
Any idea?

Greetings from the rainy Vienna/Austria,
martin