Description: New UC, LC, MC, UN, LN and MN keywords (similar to the previously available NUM keyword) now allow you to test a field for various combinations of alphanumeric characters or non-alphanumeric characters using binary (BI) format.
You can use these new keywords in the following comparison operands: COND, INCLUDE, OMIT, BEGIN, END, WHEN and TRLID.
When change was introduced: z/OS® V2R1
Reference information: z/OS DFSORT Application Programming Guide