Stephen Harris wrote:
RHEL 2.1: Mar 2002 (AS), May 2003 (ES) RHEL 3: Oct 2003 RHEL 4: Feb 2005 RHEL 5: Mar 2007 RHEL 6: ??? (previous Beta's have been 5-6 months...)
Funky; in June 2006 RHEL claimed they would slow their release schedule to every 2 years (rather than 18 months). Oops! They didn't make that :-)
I bet they realized that even 2 years, with a 7 year life cycle, they'd be supporting 3-4 major versions concurrently.