The same debian - different packages

[przemolicc@poczta.fm]

I have strange result on two our debian servers - both are woody.
The first one (A) has kerenel 2.4.19, the other one (B) - 2.4.22.
The A server is almost daily checked against new packages, the B
server was upgraded yesterday. Both have the same sources.list

But server A:

serverA:~# dpkg -l ssh
Desired=Unknown/Install/Remove/Purge/Hold
|
Status=Not/Installed/Config-files/Unpacked/Failed-config/Half-installed
|/ Err?=(none)/Hold/Reinst-required/X=both-problems (Status,Err: uppercase=bad)
||/ Name               Version            Description
+++-==================-==================-====================================================
ii  ssh                3.4p1-1.woody.3    Secure rlogin/rsh/rcp replacement (OpenSSH)

While server B:

serverB:~# dpkg -l ssh
Desired=Unknown/Install/Remove/Purge/Hold
|
Status=Not/Installed/Config-files/Unpacked/Failed-config/Half-installed
|/ Err?=(none)/Hold/Reinst-required/X=both-problems (Status,Err: uppercase=bad)
||/ Name               Version            Description
+++-==================-==================-====================================================
ii  ssh                3.4p1-2            Secure rlogin/rsh/rcp replacement (OpenSSH)

Why the two servers, upgraded from the same server have different ssh
packages ? The same is with some other packages, e.g.: xfree86-common

przemol