I also concur with the practice to reassemble all exits whenever in doubt.
However I tried to explain the reasons.
Third time: it is not big deal to reassembly the exits.
Caution, small print, etc. YOU HAVE TO KEEP THE SOURCES!
And yes, you have to be pretty sure that is the source. Not the previous
version, not the test version, not the "I think this is the version"...
That's crucial.
--
Radoslaw Skorupka
Lodz, Poland
W dniu 21.04.2025 o 14:53, Allan Staller pisze:
Classification: Confidential
While I concur w/Radoslaw on most of the below, IMO, it is a "best practice" to
reassemble all exits at a Ver/Rel boundary.
Many exits are even more sensitive and may need reassembly when maintenance is
installed.
HTH,
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Radoslaw Skorupka
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Subject: Re: Exits reassembly
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W dniu 21.04.2025 o 10:14, Peter pisze:
Hello
Apology for the dummy question
How do we know if a particular exit needs a reassembly before
migrating to a newer zos version?
I have seen some exits work by just copying over without reassembly.
Any thoughts or advise based on your experience
It's not dummy question.
However there is no requirement to *always* reassembly an exit when migrating
to newer z/OS version.
However:
1. Why do we reassemble? Because exit uses macros and structures which are
likely (but not always) may change.
2. Instead of detailed analysis which it is simply easier to reassemble.
3. It is not only system upgrade. It can be some PTF as well, which causes the
need to reassemble. IMHO much less likely.
4. There are exits for some applications, in that case the need for reassemble
would be different. It can be because system change or product change. Or both.
My €0.02
--
Radoslaw Skorupka
Lodz, Poland
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