Keeping up with changes to ISPF can be well worth a little effort. When you encounter a new release of ISPF, the first thing you should do is check out the “Changes for this release” Help option, paying particular attention to the Program Development Facility (PDF) section.
How to Use SEREA Command
The PDF component of ISPF includes general user tools such as data set lists (option 3.4 and the DSLIST command), member lists, the ISPF editor, etc.
You can identify new ISPF releases by looking at the Session Status on the ISPF primary option menu or using the command SAREA on any ISPF screen.