Description: ICSF is enhanced to use the AP queue number (APQN) format supporting greater than 16 domains.
When change was introduced: Enhanced Cryptographic Support for z/OS V1R13 and z/OS V2R1 web deliverable and PTFs for APAR OA44910 for FMID HCR77A1, HCR77A0, HCR7790, and HCR7780.