[CentOS] Why tzdata-2007h [RHEA-2007:0928-05] only for CentOS 2?

I might be stupid and ask an idiot or offensive question, but here it is:

"Why was tzdata-2007h [RHEA-2007:0928-05] only released for CentOS 2, when upstream has released it for all the versions?"

The guys from X/OS have released it for 5.0 along with the other updates (on Oct. 9).

Are the "enhancements"... "not important" as long as they're not "security updates"?

True, the guys from SL have only released tzdata-2007h in "fastbugs" -- which is something you should not use --, but I am asking in a single place: why?

Thanks, R-C

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