On Wed, Apr 27, 2011 at 11:25 AM, Ted F.A. van Gaalen <tedvga@gmail.com> wrote:

Hi Marcus
As I wrote, I am thinking from the perspective
of an application developer, a typical pharo-user ?
imagine that I/we have �hundreds of
apps written, will they run unchanged
say 5 years from now?

Probably not. We would like to improve the system and clean it. Unfortunately, sometimes there is no other way than loosing backward compatibility.
What do you prefer?� Pharo choose a better system.

If you/companies do not even collaborate with updating your code (don't say even fixing bugs or submitting code) ...then don't expect anything from Pharo. Pharo is open-source, free and it is build in the free time.

And I think Pharo is not the only one....out there most of the languages change a lot between versions, Python, blah.

Cheers

Mariano

�

Regards
Ted

On Wed, Apr 27, 2011 at 11:16 AM, Marcus Denker <marcus.denker@inria.fr> wrote:
>
> On Apr 27, 2011, at 10:59 AM, Ted F.A. van Gaalen wrote:
>
>> Good morning Mariano
>>
>> This is something I wrote to Adrian Lienhard,
>> when an image did not run, straight out of the box
>> so to speak, because of VM differences
>> Some thoughts about reliability, and, very important
>> IMHO, upward compatibility.
>>
>> Thanks & Regards
>> Ted
>>
>>>>>
>> ?
>> I did expect that, nota bene working with
>> the Seaside supplied one-click image and
>> the virtual machine supplied with it,
>> provided on the Seaside.st site itself,
>> that everything is (and remains)
>> 100% upward compatible,
>> no matter what VM is or will be used in the future.
>
> This is impossible and, in the end, not a good idea.
>
> We can not be compatible forever, was this would mean
> that we can not improve anything.
>
> e.g. imagine someone would fix the VM to be better.
> (e.g. a modern object format).
>
> Do you really request to then *not* do this change because
> this VM could not run old images? (and new images would
> not run on old VMs?).
>
> Do you want to have a Future or be compatible to the Past?
>
> � � � �Marcus
>
>
> --
> Marcus Denker �-- http://www.marcusdenker.de
> INRIA Lille -- Nord Europe. Team RMoD.
>
>
>