I think that'd be the worst place to take it from for the same reason. If I build a package using today's current TZ database and it works on my machine, it shouldn't stop working if I share it with someone using an old CentOS from several years ago.
True, but it’s generally a lot easier to patch software than expect someone to update their whole OS.
(Generally. I know plenty of shops deployed Exchange in 2009 and it still works so why fix it, goshdarnit! Those people aren’t generally updating their OS either though.)
