Scientific Linux is an Enterprise Linux rebuild sponsored by Fermi National Accelerator Laboratory. Our primary user base is within the High Energy and High Intensity Physics community. Scientific Linux is a rebuild of Red Hat Enterprise Linux (property of Red Hat Inc NYSE:RHT). Scientific Linux 7.3 x86_64 released. We have also produced an 'Everything' image which exceeds dual-layer sizes, but contains the entire tree. OpenAFS has been updated to version 1.6.20, the latest upstream stable. There is a new Scientific Linux End User License Agreement (EULA). The EULA now contains information about the U.S. Government contract under which Fermilab produces Scientific Linux. The Scientific Linux context plugin has been altered to be less aggressive in its use of network resources