From owner-cvs-src@FreeBSD.ORG  Fri Nov  4 18:03:04 2005
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Date: Fri, 04 Nov 2005 10:59:47 -0700 (MST)
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To: jhb@FreeBSD.org
From: Warner Losh <imp@bsdimp.com>
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Cc: cvs-src@FreeBSD.org, ceri@submonkey.net, ru@FreeBSD.org,
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Subject: Re: cvs commit: src/usr.sbin/config configvers.h
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> I think the more useful thing would be to get 
> config to understand >= for it's version tests though so that version bumps 
> aren't quite so painful.

Consider http://people.freebsd.org/~imp/conf.diff

It implements that test, with one caveat.  The major version number
(the 6 in 600003) is also tested.  We should only bump this version
number whenever there's a major change in the config system such that
the new config can't grok older config files.  So it should *NOT* be
automatically bumped at branch points, but incremented by the human
doing the backwards incompatible change.

Warner