Re: COBOL 3.4 and LE Considerations questions

[Shmuel Metz (Seymour J.)]

In , on 06/28/2012
   at 01:47 PM, Tom Ross  said:

>This was changed quite a few years ago, when customers realized that
>the LE release was tied to the OS release, and they were running with
>newer releases in development systems compared to production systems.

>It is now fully supported to compile and link with z/OS release X and
>run on z/OS release X-1 or X-2.

>http://www-03.ibm.com/systems/z/os/zos/features/lang_environment/whatsnew/down.html

Thanks.

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Re: COBOL 3.4 and LE Considerations questions

[Tom Ross]

>>If I compile an Enterprise Cobol 3.4 module under a z/OS v1r11=20
>>system and its LE version can I run that same module on a z/OS=20
>>V1R9 system with the 1.9 version of LE Or would I have to=20
>>recompile it under z/OS V1R9 ?
>
>The rule has always been that you musy use a new library if you use a
>new compiler, and that your resident (bind/linkedit) library can't be
>newer than your transient (loaded at run time) library. That goes back
>way before LE.

This was changed quite a few years ago, when customers realized that the
LE release was tied to the OS release, and they were running with newer
releases in development systems compared to production systems.

It is now fully supported to compile and link with z/OS release X
and run on z/OS release X-1 or X-2.

http://www-03.ibm.com/systems/z/os/zos/features/lang_environment/whatsnew/down.html

Cheers,
TomR  >> COBOL is the Language of the Future! <<

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Re: COBOL 3.4 and LE Considerations questions

[Shmuel Metz (Seymour J.)]

In
<2a9e1363b91de94a874408de46f0b32daf44ad4...@cwm-ex-mbc-1.dcgov.priv>,
on 06/20/2012
   at 03:19 PM, "Myers, Edouard (OCTO)"  said:

>If I compile an Enterprise Cobol 3.4 module under a z/OS v1r11 
>system and its LE version can I run that same module on a z/OS 
>V1R9 system with the 1.9 version of LE Or would I have to 
>recompile it under z/OS V1R9 ?

The rule has always been that you musy use a new library if you use a
new compiler, and that your resident (bind/linkedit) library can't be
newer than your transient (loaded at run time) library. That goes back
way before LE.

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Re: COBOL 3.4 and LE Considerations questions

[Rick Arellanes]

LE does support downward compatibility when using OS/390 2.10 and later, but 
you must follow the giudelines and restrictions listed in the LE Programming 
Guide in section 1.2.2 Downward compatibility considerations found here:
http://publibz.boulder.ibm.com/cgi-bin/bookmgr_OS390/BOOKS/ceea21c0/1.2.2

Rick Arellanes
IBM COBOL Development

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Re: COBOL 3.4 and LE Considerations questions

[Scott Ford]

Ed,

I has problems with backward compatibility with a customer running z/os 1.7 
with our code developed on 1.11 ..certain LE functions were not working, it was 
a fix I think , 1.10 and up no issues with any customers, we develop our STCs 
in LE COBOL 4.2

Scott ford
www.identityforge.com

On Jun 20, 2012, at 3:19 PM, "Myers, Edouard (OCTO)"  
wrote:

> When Migrating from z/OS V1R9 to z/OS V1R11
> If I compile an Enterprise Cobol 3.4 module under a z/OS v1r11 system and its 
> LE version can I run that same module on a z/OS V1R9 system with the 1.9 
> version of LE Or would I have to recompile it under z/OS V1R9 ? This would be 
> for back out type purposes. The Same Scenario going from Z/OS v1R11 to z/OS 
> V1R13. What are my risk?
> 
> Thank you
> 
> Ed Myers
> Grade Your Government!
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Re: COBOL 3.4 and LE Considerations questions

[Steve Comstock]

On 6/20/2012 1:19 PM, Myers, Edouard (OCTO) wrote:

When Migrating from z/OS V1R9 to z/OS V1R11
If I compile an Enterprise Cobol 3.4 module under a z/OS v1r11 system and its 
LE version can I run that same module on a z/OS V1R9 system with the 1.9 
version of LE Or would I have to recompile it under z/OS V1R9 ? This would be 
for back out type purposes. The Same Scenario going from Z/OS v1R11 to z/OS 
V1R13. What are my risk?

Thank you

Ed Myers


Shouldn't be a problem. The LE folks several years ago
set up a backward compatible environment that covers
at least two releases, which is what you're talking
about. The only caveat is your later release COBOL
program can't use any services introduced after your
earlier release of LE, which seems reasonable.



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Re: COBOL 3.4 and LE Considerations questions

[McKown, John]

We do not recompile our Enterprise COBOL 3.4 except when we make changes to the 
source. We have programs still running which were compiled on z/OS 1.8, maybe 
even older. We are running z/OS 1.12.


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> -Original Message-
> From: IBM Mainframe Discussion List 
> [mailto:IBM-MAIN@listserv.ua.edu] On Behalf Of Myers, Edouard (OCTO)
> Sent: Wednesday, June 20, 2012 2:20 PM
> To: IBM-MAIN@listserv.ua.edu
> Subject: COBOL 3.4 and LE Considerations questions
> 
> When Migrating from z/OS V1R9 to z/OS V1R11
> If I compile an Enterprise Cobol 3.4 module under a z/OS 
> v1r11 system and its LE version can I run that same module on 
> a z/OS V1R9 system with the 1.9 version of LE Or would I have 
> to recompile it under z/OS V1R9 ? This would be for back out 
> type purposes. The Same Scenario going from Z/OS v1R11 to 
> z/OS V1R13. What are my risk?
> 
> Thank you
> 
> Ed Myers
> Grade Your Government!
> Share your thoughts on key DC Government services.
> Check out the new grade.dc.gov and give your feedback via 
> web, text or social media.
> Learn more at www.grade.dc.gov
> 
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> 
> 

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Re: COBOL 3.4 and LE Considerations questions

[Gibney, Dave]

I don't know the specific answer. I wouldn't trust it. 
In general, newer LE runtimes support older version complied modules. The other 
way around, not so much.



Dave Gibney
Information Technology Services
Washington State University


> -Original Message-
> From: IBM Mainframe Discussion List [mailto:IBM-MAIN@listserv.ua.edu] On
> Behalf Of Myers, Edouard (OCTO)
> Sent: Wednesday, June 20, 2012 12:20 PM
> To: IBM-MAIN@listserv.ua.edu
> Subject: COBOL 3.4 and LE Considerations questions
> 
> When Migrating from z/OS V1R9 to z/OS V1R11
> If I compile an Enterprise Cobol 3.4 module under a z/OS v1r11 system and its
> LE version can I run that same module on a z/OS V1R9 system with the 1.9
> version of LE Or would I have to recompile it under z/OS V1R9 ? This would be
> for back out type purposes. The Same Scenario going from Z/OS v1R11 to
> z/OS V1R13. What are my risk?
> 
> Thank you
> 
> Ed Myers
> Grade Your Government!
> Share your thoughts on key DC Government services.
> Check out the new grade.dc.gov and give your feedback via web, text or social
> media.
> Learn more at www.grade.dc.gov
> 
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