There are changes to the offset and length parameters passed to the DFHUCNV
user-replaceable program. The changes to offsets, and the use of fullword
instead of halfword values, means that you cannot share the same URM between CICS® TS 2.3 or 2.2 regions and regions of an earlier release.
To enable you to maintain and use different versions of DFHUCNV, there
is a change to the DFHCNV TYPE=ENTRY macro:
- A program name option is added to the USREXIT parameter, making the syntax:
USREXIT=YES|NO|program_name. This allows you to specify
a program name different from DFHUCNV, and to keep DFHUCNV as the name of
the data conversion URM for CICS TS 2.1 and earlier. If you specify USREXIT=YES, CICS loads DFHUCNV.
- To use your existing version of DFHUCNV with earlier releases of CICS, also continue
to use the earlier version of DFHCNV. The CICS TS 2.2 DFHCNV data conversion table macro
is not compatible with earlier releases.
- To use a CICS TS 2.2 version of DFHUCNV, specify USREXIT=new_ucnv_name.
See User-replaceable programs.
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