Hi all I have a question that seems common to me, but I searched around and did not find an answer. I use yum on Fedora, currently Core 3. I produce some packages that merely extend the functionality of Fedora's ones. For example, Fedora has the squid-2.5.STABLE6-3 package; I compiled it with some patches and some modifications and created squid-2.5.STABLE6-3.lux.1 . Now, I would like that if for example Fedora issues squid-2.5.STABLE6-4, yum update do not update my version with it: this would break my services since Fedora's package has not got the functionalities I added. Maybe this could be done comparing the signer's key ID in the installed and updated packages. Is there a way to accomplish this, or maybe this feature coould be added in the future? I only know a little of C, but nothing about python. Thank you Lux