It seems like i've read posts from both Jon and Scott outlining this
technique in the past.
As long as new procedures are added to the end of the list of procedures,
and you specify a constant signature in the binder source, you don't need
to recompile programs that reference the service program.
As I understand it, procedures are reference by their relative location in
the service program.
The only time you would have to specify multiple PGMLVL's in binder source
is if you remove, or reorder, the procedures that are specified.
I have service programs that have the same signature since they were
originally written. We always add new procedures at the end, and the
programs that use the service programs never have to be recompiled.
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