Z Os Adcd 1.13 - 13 !!install!! 95%

Many shops kept a V1R13 ADCD instance alive for even after moving production to z/OS 2.x, because:

It is designed to run on the or z Systems Development and Test Environment (zD&T) , which emulate IBM Z hardware on standard x86 Linux systems. Key Features of Release 1.13 Z Os Adcd 1.13 - 13

Developers can write and test COBOL, PL/I, or C programs without consuming expensive MIPS (Millions of Instructions Per Second) on a production mainframe. Systems Programming Practice: Many shops kept a V1R13 ADCD instance alive