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Date:      Wed, 01 Mar 2000 12:45:37 -0700
From:      Warner Losh <imp@village.org>
To:        Will Andrews <andrews@technologist.com>
Cc:        "Forrest W. Christian" <forrestc@iMach.com>, freebsd-stable@FreeBSD.ORG
Subject:   Re: When does 4.x become -STABLE? 
Message-ID:  <200003011945.MAA96837@harmony.village.org>
In-Reply-To: Your message of "Wed, 01 Mar 2000 12:49:58 EST." <20000301124958.B426@argon.blackdawn.com> 
References:  <20000301124958.B426@argon.blackdawn.com>  <Pine.BSF.4.21.0003010026270.489-100000@workhorse.iMach.com> 

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In message <20000301124958.B426@argon.blackdawn.com> Will Andrews writes:
: On Wed, Mar 01, 2000 at 12:31:05AM -0700, Forrest W. Christian wrote:
: > With the advent of 4.0-RELEASE, does this mean that 4.0-STABLE will soon
: > follow along with 5.0-CURRENT?
: 
: No. 4.x-STABLE will probably come around 4.2-RELEASE. It may come some time
: after 4.1-RELEASE but not before. Of course, this is just a prediction.

The last publicly announced plans were to branch 4.x right after the
release so things like acpi and kernel threads could get rolling right
away.  At the point of the branch, 4.0 moves from 4.0-current to
4.0-stable and 5.0-current will be born.

In general, the FreeBSD project tends to support the last two
releases, and the last release on the previous stable branch if there
aren't three releases in the new branch.

Let us assume that 4.0R comes out, then 3.5R comes out a few months
later, then 4.1R and 3.6R.  Here's an approximate table of what would
be supported:

Approx
Date	Event		What's supported after the event.

3/00	today:		3.4R, 3.3R
3/00	4.0R:		4.0R, 3.4R, 3.3R
4/00	3.5R:		4.0R, 3.5R, 3.4R
7/00	4.1R:		4.1R, 4.0R, 3.5R
8/00	3.6R:		4.1R, 4.0R, 3.6R
11/00	4.2R:		4.2R, 4.1R
3/01	4.3R:		4.3R, 4.2R

Various people in the project may choose to support a wider window
than shown above.  The security officer tends to follow the above
closely, unless there are people on the SO team that can test on more
releases.  Given the nature of the changes in 4.0, I think that the SO
team will support the 3.x-stable branch to approx the 4.3R or 4.4R
timeframe.

Note, the above dates are based on the one release every 4 months that
has been traditional and which Jordan talked about being the target at
FreeBSD Con'99.  This doesn't represent an official schedule, nor is
it a firm commitment to anything.  It is just my guess based on
publicly available information and past history.  Past performance is
no guarantee of future results.  Objects in mirror may be closer than
they appear.  For external use only.  Your milage may vary.  Do not
taunt HappyFunBall.

Warner


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