Red Hat Security Advisory 2015-0860-01 – In accordance with the Red Hat Enterprise Linux OpenStack Platform Support Policy, the 1.5 year life cycle of Production Support for version 4 will end on June 19, 2015. On June 20, 2015, Red Hat Enterprise Linux OpenStack Platform version 4 will enter an inactive state and will no longer receive updated packages, including Critical-impact security patches or urgent-priority bug fixes. In addition, technical support through Red Hat’s Global Support Services will no longer be provided after this date. They encourage customers to plan their migration from Red Hat Enterprise Linux OpenStack Platform 4.0 to Red Hat Enterprise Linux OpenStack Platform version 5 or 6.