Red Hat’s flagship offering is Red Hat Enterprise Linux 6 (RHEL), which was first released back in November of 2010. Red Hat’s previous flagship release was Red Hat Enterprise Linux 5 which is still being actively updated
Ron Pacheco, Senior Director of Product Management at Red Hat explained to ServerWatch that the Red Hat Enterprise Linux Product Life Cycle is divided into three Production Phases.
Pacheco noted that Production Phase 1 is where features are added to the release. This Phase runs approximately 5 and a half years.
“RHEL 5. 9 is the last minor release in Production Phase 1 so, yes, RHEL 5. 9 is the last minor release where we introduce new features for this mission critical product,” Pacheco said.