Well it was immune to heartbleed, lol (ancient openssl never had tls heartbeat feature) But Redhat actually still supports EL4 through their ELS program and r

Well it was immune to heartbleed, lol (ancient openssl never had tls heartbeat feature) But Redhat actually still supports EL4 through their ELS program and releases patches for it until March 31, 2017 https://access.redhat.com/support/policy/updates/errata#th-rhel3-elp https://access.redhat.com/support/policy/updates/errata#th-r... CentOS simply decided not to keep up with it anymore, cannot blame them.