Jon Peatfield wrote:

> Considering the case of an update to 'openssl', there are many
> packages which depend on it, and several of these have
> services/daemons.
> 
> However, as far as I can tell none of them have any obvious
> '--scripts' or '--triggers' which will cause those to be re-started
> if openssl is updated.
> 
Adding a somewhat idle comment to this thread,
I once had a spirited discussion with a Debian developer (Phil Hands).
He sang the praises of dpkg which is claimed to always restart services 
such as sshd following an update, versus rpm which does as you describe.
I guess he was right.

To be fair, its not the actual mechanics of rpm versus dpkg, more 
Debian's rigid adherence to the rules.
(Did i really just praise Debian over the right and natural way of RPM 
based distros? Need that first coffee of the morning to bring reality 
back into focus).