if you have TAA tools installed on your system, the CHKCMDDFT command can be used.
below is the tool description.
CHKCMDDFT CHECK COMMAND DEFAULT TAACMEG
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The Check Command Default command checks commands in one or more libraries to determine if the system supplied CHGCMDDFT command was used. The check cannot be 100% accurate, but can be helpful to determine most usage of CHGCMDDFT.
Since the systems are known to be at different releases, why do you care if defaults have changed? You should <i>expect and assume</i> that there will be changes. That’s a normal characteristic of release upgrades.
Therefore, don’t rely on defaults. Qualify your commands to QSYS and specify the values that you want. Don’t rely on defaults.