On March 31st, 2017, CentOS will be halting support and maintenance updates for CentOS 5. On March 1st, 2017 Scalr will be also be ending CentOS 5 support for the Scalarizr agent. This will allow Scalr to provide new features in the agent that will not be tested on CentOS 5. Scalarizr agent 5.3.6 is the final version supporting CentOS 5. Full testing of Scalarizr will continue on current (6 and later) versions of CentOS.
We strongly encourage all users to upgrade their systems to a newer version of CentOS moving forward.
If you have any questions or need assistance, please reach out to us via your normal Support channel and we will do our best to quickly address your inquiries.
Wm. Marc O'Brien and the Scalr team