Upgrading Fedora is pretty safe most of the times. This one time I had issues with the openssl package having a change that wasnt compatible with x2go. Since I use x2go all the time I wanted to pin the version of openssl to libssh-0.5.5-1.fc20. 1yum install yum-plugin-versionlock 2yum versionlock libssh And that was …

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