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Date: Fri, 9 Aug 2019 10:15:25 +0200
Message-ID: <CABdc3WpkBvDY0c4ULsbsOoA8begqqYn-j-R3f5RkLvCt-iSYdw@mail.gmail.com>
To: Sergey Panteleev <sergey@s-panteleev.ru>
Cc: Nikita Popov <nikita.ppv@gmail.com>, Kris Craig <kris.craig@gmail.com>, 
	Zeev Suraski <zeev@php.net>, Internals <internals@lists.php.net>
Content-Type: multipart/alternative; boundary="0000000000008c15b9058faac705"
Subject: Re: [PHP-DEV] Bringing Peace to the Galaxy
From: michal.brzuchalski@gmail.com (=?UTF-8?Q?Micha=C5=82_Brzuchalski?=)

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Hi Sergey,

pt., 9 sie 2019, 09:40 u=C5=BCytkownik Sergey Panteleev <sergey@s-panteleev=
.ru>
napisa=C5=82:

> As I understand, in P++ it was planned to drop the legacy code, add new
> functionality and painlessly implement BC.
>
> Who wants =E2=80=93 migrates the PHP project in P++, who doesn't =E2=80=
=93 continues to
> use PHP.
>
> New projects, for example, will use P++ already.
>
> Well, how is this different from the new version of PHP (e.g. PHP 9)?
>
> Who wants =E2=80=93 adapts his code for PHP 8/9 with all its BCs, who doe=
sn't =E2=80=93
> continued to use PHP 7/8.
>

As I understand editions concept it would be far more easy to interoperate
with old edition written library than in separate languages like PHP and
P++. If new edition introduce syntax breaking change it would be still
possible to to interoperate with old code in old edition and work on a
project based on new edition.

That way you can end up on for eg PHP8 supporting edition=3D2020 with new
features which break compatibility but still working with PHP7.4 treated
perhaps by default as edition=3D2019 in future versions.

Cheers,
Micha=C5=82

>

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