I am curious to know why z/Architecture Principles of Operation (SA22-7832) is not included in the z/OS 2.5 documentation collection (ZOSV2R5-PDFKIT_GA2021.zip), nor is it in the z/OS 2.4 documentation collection (zOSV2R4Library.zip), nor is it in the z/OS 2.3 documentation collection (zOSV2R3Library.zip).
SA22-7832-10 WAS included in the z/OS 2.2 collection (C27843006.zip) and a current-at-the-time version was included in all prior collections (as best as I can tell). It can be obtained by going through https://www-01.ibm.com/servers/resourcelink, however, this requires an IBM Resourcelink user ID and the pub seems to be in a machine model specific library (for example, the "z15 Model T01 library"). Is there some (sensible) reason for this? Thanks. Bob Raicer
