z/OS 3.1 has become generally available. This is the first new z/OS version in 10 years. The focus of version 3 is going to be around AI. Initially a new AI framework and usage for improving WLM powered initiators. You will use a z/OSMF application to train the AI code on your batch usage, then it will use that information to predict the initiator usage and needs. The result is a model that should be more aligned with your usage making z/OS more responsive and requiring less manual operation.

z/OS 3.1 also of course has all the incremental improvements you’ve come to look for in a new z/OS release from improvements in JES2, SDSF, RACF, RMF etc.

A couple of my favorites are the module fetch monitor in SDSF which tracks loads and helps you to identify modules that might be better placed in LLA. Another is the RMF Grafana user interface which brings a high function graphical user interface to RMF.

I also like the JES2 policy support which starts to provide default policy that will help you avoid out of space situations on Spool.