From owner-freebsd-questions@freebsd.org  Thu Aug 27 21:11:05 2015
Return-Path: <owner-freebsd-questions@freebsd.org>
Delivered-To: freebsd-questions@mailman.ysv.freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org
 [IPv6:2001:1900:2254:206a::19:1])
 by mailman.ysv.freebsd.org (Postfix) with ESMTP id 1A9379C4794
 for <freebsd-questions@mailman.ysv.freebsd.org>;
 Thu, 27 Aug 2015 21:11:05 +0000 (UTC)
 (envelope-from milios@ccsys.com)
Received: from cargobay.net (cargobay.net [198.178.123.147])
 (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))
 (Client did not present a certificate)
 by mx1.freebsd.org (Postfix) with ESMTPS id D1924EE7
 for <freebsd-questions@freebsd.org>; Thu, 27 Aug 2015 21:11:04 +0000 (UTC)
 (envelope-from milios@ccsys.com)
Received: from [192.168.0.2] (cblmdm72-240-160-19.buckeyecom.net
 [72.240.160.19]) by cargobay.net (Postfix) with ESMTPSA id B3454D4A;
 Thu, 27 Aug 2015 21:07:18 +0000 (UTC)
Mime-Version: 1.0 (Mac OS X Mail 8.2 \(2104\))
Subject: Re: Zero delta ?
From: "Chad J. Milios" <milios@ccsys.com>
In-Reply-To: <CAEV4i4Vh=B99v59THKNCeYMHKd1Ht2Lv0pH-UbNVXZCTe2e1OA@mail.gmail.com>
Date: Thu, 27 Aug 2015 17:11:01 -0400
Cc: freebsd-questions@freebsd.org
Message-Id: <05815B19-FD8B-4E79-9706-D9B7CEDE725C@ccsys.com>
References: <CAEV4i4Vh=B99v59THKNCeYMHKd1Ht2Lv0pH-UbNVXZCTe2e1OA@mail.gmail.com>
To: Eneko Gotzon <enekogotzon@gmail.com>
X-Mailer: Apple Mail (2.2104)
Content-Type: text/plain;
	charset=utf-8
Content-Transfer-Encoding: quoted-printable
X-Content-Filtered-By: Mailman/MimeDel 2.1.20
X-BeenThere: freebsd-questions@freebsd.org
X-Mailman-Version: 2.1.20
Precedence: list
List-Id: User questions <freebsd-questions.freebsd.org>
List-Unsubscribe: <https://lists.freebsd.org/mailman/options/freebsd-questions>, 
 <mailto:freebsd-questions-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-questions/>
List-Post: <mailto:freebsd-questions@freebsd.org>
List-Help: <mailto:freebsd-questions-request@freebsd.org?subject=help>
List-Subscribe: <https://lists.freebsd.org/mailman/listinfo/freebsd-questions>, 
 <mailto:freebsd-questions-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Thu, 27 Aug 2015 21:11:05 -0000

> On Aug 27, 2015, at 5:00 PM, Eneko Gotzon <enekogotzon@gmail.com> =
wrote:
>=20
> Hi all Byte Masters.
>=20
> Absolute beginner starting to learn about FreeBSD so excuse this kind =
of
> question.
>=20
> In the *Who Uses FreeBSD?* section of the Handbook it is written:
>=20
> *Netflix has made extensive contributions to the codebase and works to
> maintain a zero delta
> =
<https://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/nutshell.html>=

> from mainline FreeBSD*.
>=20
>=20
> Please, what must I understand about that *zero delta* expression? =
Thank
> you very much.
>=20
> --=20
> Eneko Gotzon Ares
> enekogotzon@gmail.com <mailto:enekogotzon@gmail.com>

It simply means they [do their best to, community permitting] push =
upstream all their cool enhancements to the FreeBSD project for everyone =
to share in the wealth (and maintenance).

This benefits us, gaining from their experience with an expansive =
content distribution network and giant workloads. This benefits them as =
it minimizes the effort they spend doing =E2=80=9Cfork-lifts=E2=80=9D, =
the merging of FreeBSD's updates into their proprietary FreeBSD variant =
(or inversely, re-applying their modifications to an evolving FreeBSD).

-Chad=