Product	RH3	RH4	RH5	RH6	RH7
GA	10/2003	02/2005	03/2007	11/2010	6/2014
Prod1 End	07/2006	03/2009	01/2013	Q2/2016	Q4/2019
Prod2 End	06/2007	02/2011	Q1/2014	Q2/2017	Q4/2020
Prod3 End	10/2010	02/2012	03/2017	11/2020	6/2024
Extended End	01/2014	02/2015	Q1/2020	06/2024	TBD
RHEL 6	Date
6.0	11/30/12
6.1	5/31/13
6.2	1/7/14
6.3	6/30/14
6.4	2/28/15
6.5	11/30/15

Prod 1: Full support

Prod 2: No software enhancements, limited hardware updates

Prod 3: Above plus no minor releases, hardware updates for virtualization only

Extended: No updates without additional support contract

Source: RH Lifecycle