> Hi All,
>
>
>     Fabio's kindly done most of the changes.  But some questions remain
> for
> more general discussion.  See below.
>
> Fabio,  thanks so much for doing this, and so quickly!
>
> On Tue, Aug 11, 2015 at 8:51 PM, Eliot Miranda <eliot.miranda at gmail.com>
> wrote:
>
>> Hi All,
>>
>>     who will update http://squeak.org/downloads/ to include the 5.0
>> release?
>>
>> a) I suggest that the 5.0 all-in-one have a line in the left-hand table
>> that includes the 4.6 release and that it precede the 4.6 release in the
>> list.
>>
>
> Done.
>
>
>>
>> b) the Trunk link points to TrunkImage.zip which contains a non-Spur
>> image.
>>
>
> So this is the biggie.  What should we do?
>
> - add a Trunk 5.0 build with a different link?  (Noooooo)
>
> - change  http://build.squeak.org/job/SqueakTrunk to build what it says
> (Yessss please, who can do this?)
>
> - add a Squeak 4.6 build job?  Is that even worth it any more considering
> 4.6 is released and stable?  If it is then what should it build?  David?

I think that if we have a job called "SqueakTrunk" then it should be
building the actual current trunk image, which is a 5.0 Spur image.

Ideally I would suggest renaming the current "SqueakTrunk" job to
something like "SqueakTrunk_Old". Leave it disabled until it gets fixed,
and if it does not get fixed in a reasonable time (say a month or two)
then delete it. Meanwhile get new new job up and running for the real
SqueakTrunk builds.

I do not know how that Jenkins job is maintained (it's done in a Ruby make
system, which is over my head), so treat this just as an opinion.

Dave

>
>
>> c) Spur VMs need to be linked to by an added line in the Virtual
>> Machines
>> list.
>>
>
> Not applicable.  the VM links point to the root of my site so they
> effectively point to both old and Spur VMs.
>
>
>>
>> d) Spur imagers need to be included in the Image and Changes list under
>> Custom Installation
>>
>
> Done.
>
>
>
>>
>> e) The SqueakV50.sources file also needs to be included in the Current
>> Sources list.
>>
>
> Done.
>
>
>
>> f) we could start a History list for the 5.0 line
>>
>
> This is probably quite a big reorg on the page and not urgent.
>
>
>>
>> So there are a few things to fix before 5.0 is freely downloadable.
>>
>> On Tue, Aug 11, 2015 at 8:23 PM, Chris Muller <ma.chris.m at gmail.com>
>> wrote:
>>
>>> In the 17 months since Squeak 4.5 was released, a huge development
>>> effort took place to create the next generation virtual-machine for
>>> the Squeak / Pharo / Newspeak family of programming systems.  Squeak
>>> is the modern incarnation of the Smalltalk-80 programming environment
>>> originally developed at the Xerox PARC.
>>>
>>> "Squeak 5" introduces this new VM and associated new memory model,
>>> collectively referred to as "Spur".  Presented [1] by Eliot Miranda
>>> and Clément Béra at the 2015 International Symposium on Memory
>>> Management, this new VM affords Squeak applications a significant
>>> boost in performance and memory management.  Among other
>>> optimizations, the #become operation no longer requires a memory scan.
>>> Object pinning and ephemerons are also now supported.  The release
>>> notes [2] provide more details.
>>>
>>> The new memory model requires a new image file format.  Although this
>>> new format results in about a 15% increased memory requirement for the
>>> same number of 4.x objects, a new segmented heap allows memory to be
>>> given back to the OS when its no longer needed, a great benefit for
>>> application servers.
>>>
>>> As forward compatibility is as important to the Squeak community as
>>> backward compatibility, Squeak 5 is delivers an image with identical
>>> content as the recent 4.6 release.  Although this new Squeak 5 VM
>>> cannot open images saved under the prior 4.x Cog format, objects and
>>> code can be easily exported from the 4.x image and then imported into
>>> Squeak 5.  Applications whose code runs strictly above the Smalltalk
>>> meta layer will prove remarkably compatible with the new format, most
>>> applications will require no changes whatsotever.
>>>
>>> Squeak 5 is the result of monumental effort by a tiny group of very
>>> talented people, but its also just the beginning of yet a new effort;
>>> Spur is just a stepping stone to a more ambitious goals planned over
>>> the next five years.
>>>
>>> [1] -- A Partial Read Barrier for Efficient Support of Live
>>> Object-oriented Programming
>>>
>>> http://conf.researchr.org/event/ismm-2015/ismm-2015-papers-a-partial-read-barrier-for-efficient-support-of-live-object-oriented-programming
>>>
>>> [2] -- Squeak 5 Release Notes
>>> http://wiki.squeak.org/squeak/6207
>>>
>>>
>>
>>
>> --
>> _,,,^..^,,,_
>> best, Eliot
>>
>
>
>
> --
> _,,,^..^,,,_
> best, Eliot
>
>