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Date: Sun, 3 Feb 2013 14:11:47 -0800
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To: Rasmus Lerdorf <rasmus@lerdorf.com>
Cc: "internals@lists.php.net" <internals@lists.php.net>
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Subject: Re: [PHP-DEV] Proposal for serious BC compatibility aka language versioning
From: karoly@negyesi.net (Karoly Negyesi)

If you mean <?php3 then well, I was not here but maybe we could learn
from the mistakes and get a better implementation? I have some ideas,
but first I'd be glad to learn why it was a mess.

On Sun, Feb 3, 2013 at 2:06 PM, Rasmus Lerdorf <rasmus@lerdorf.com> wrote:
> On 02/03/2013 02:03 PM, Karoly Negyesi wrote:
>> Well, fixing a segfault, adding a new function or method as it oft
>> happened in PHP 5.3 is only breaking forwards compatibility not
>> backwards -- if you have code that ran on PHP 5.3.4 it'll run on
>> 5.3.5. The reverse is not true which causes some headaches to Drupal
>> developers but it's not relevant to this discussion.
>>
>> So, what about adding a version string to the opening <?php tag so
>> that you can fix bugs while not breaking BC :P ?
>
> We had that in the past and it was a mess. We are not going to make that
> mistake again.
>
> -Rasmus
>