> I believe it was new with OS/390 V1R1 (see page xxxv of http://
> publibz.boulder.ibm.com/cgi-bin/bookmgr/download/IEA1E242.pdf)
> 
> This makes sense to me because OS/390 was a repackaging of MVS that 
> included basic elements and optional features in a single 
> "monolithic" delivery. IFAPRDxx was hence needed to activate the 
> optional features.
> 
> Regards,
> Alan

> -----Original Message-----
> From: IBM Mainframe Discussion List [mailto:[email protected]] On
> Behalf Of Patrick Falcone
> Sent: Monday, April 11, 2011 1:51 PM
> To: [email protected]
> Subject: What OS Level was IFAPRD Introduced
> 
> Anyone have the answer to the above subject...we're thinking MVS/ESA
> 4.3 but cannot confirm...


 BROWSE    SYS1.MACLIB(IFAEDIDF) 
 Command ===> 
*01* CHANGE ACTIVITY: 
*   $L0=PRDEDCBG ,HBB6601,950601,PD00XB: Product Enable/Disable 
*   $L1=PRDEDCBG ,HBB6601,950601,PD00XB: Product Enable/Disable 

 HBB6601 was OS/390 V1R1 (back when 'ED' was Enable/Disable,
 and not something Mike Ditka had to worry about.) 

Jim Mulder   z/OS System Test   IBM Corp.  Poughkeepsie,  NY

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