If you have any ISETs that were not distributed on the CA Common Services for z/OS tape, it is possible that the IMODs contained in them were compiled under a different version of CA‑GSS.
In general, minor differences in compiler and interpreter versions will not create problems. However, to eliminate the potential for error, CA‑GSS automatically recompiles back‑leveled (or up‑leveled) IMODs during initialization. This recompiling is done in memory but is not saved back to the ISET on DASD.
The CA‑GSS SRVMAINT program provides an UPGRADE command that causes the recompiling of all IMODs in an ISET or all IMODs that are not at the current release level.
The BYSUPGR member of the CAW0JCL data set contains sample JCL and control statements for upgrading ISETs.
Note: For more information about the SRVMAINT program, see the Administration Guide.
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