Red Hat published today, April 3, 2017, the final notification for the retirement of the Red Hat Enterprise Linux 5 operating system, targeted at customers subscribed to the company’s Red Hat Enterprise Linux 5 channel. Users are being notified that Red Hat won’t provide active support for RHEL5 starting March 31, 2017. However, Red Hat offers a special add-on for those who don’t want to upgrade. Pat Riehecky from Fermilab 5 also announced that the Scientific Linux 5 operating system series has reached its end of life on March 31, 2017, which means that users running the OS on their infrastructures will no longer receive security updates. Fermilab does not provide extended life cycle support for Scientific Linux 5, so users are urged to upgrade their systems to the Scientific Linux 7 series.