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Re: The Future of PHP [message #171021 is a reply to message #171020] Wed, 15 December 2010 03:29 Go to previous messageGo to previous message
Jerry Stuckle is currently offline  Jerry Stuckle
Messages: 2598
Registered: September 2010
Karma:
Senior Member
On 12/14/2010 10:24 PM, Adam Harvey wrote:
> On Tue, 14 Dec 2010 22:17:46 -0500, Jerry Stuckle wrote:
>> On 12/14/2010 9:51 PM, Adam Harvey wrote:
>>> The Zend Engine License (available in Zend/LICENSE within the PHP
>>> source tree) explicitly deals with this problem. To quote section 4 of
>>> said licence:
>>>
>>> 4. Zend Technologies Ltd. may publish revised and/or new versions
>>> of the license from time to time. Each version will be given a
>>> distinguishing version number.
>>> Once covered code has been published under a particular version
>>> of the license, you may always continue to use it under the terms
>>> of that version. You may also choose to use such covered code
>>> under the terms of any subsequent version of the license
>>> published by Zend Technologies Ltd. No one other than Zend
>>> Technologies Ltd. has the right to modify the terms applicable to
>>> covered code created under this License.
>>>
>>> The important bit is that covered code can always be used under the
>>> version of the Zend Engine License. Even in the incredibly unlikely
>>> situation that Zend were to get bought out and development of the Zend
>>> Engine was closed, the most recent version of the Zend Engine included
>>> in the PHP source tree would remain open source, and I dare say that
>>> development would continue on that open source version of the Zend
>>> Engine regardless: much of the work that occurs on the engine comes
>>> from developers who aren't employed by Zend anyway.
>>
>> The important point here is:
>>
>> "No one other than Zend Technologies Ltd. has the right to modify the
>> terms applicable to covered code created under this License.
>>
>> If someone buys Zend out, they are free to modify any and all licenses.
>> That includes revoking those same licenses.
>
> That has to be read in conjunction with the earlier part:
>
> Once covered code has been published under a particular version
> of the license, you may always continue to use it under the
> terms of that version.
>
> Zend can, of course, change the terms of the licence at any time by
> releasing a revised version of the licence, but you (and everyone else)
> retains the right to use the code released under the "Zend Engine
> License, Version 2.00" under those exact terms in perpetuity. That
> licence on that code is explicitly irrevocable.
>
> Adam, who will bow out of this thread now and leave Jerry to have the
> last word on how black is white.

Better check with your attorney. They are perfectly legitimate in
revoking all licenses, effective immediately. A license is not
perpetual permission to use whatever product - it is permission at the
discretion of the owner.

--
==================
Remove the "x" from my email address
Jerry Stuckle
JDS Computer Training Corp.
jstucklex(at)attglobal(dot)net
==================

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