As usual there are the release notes and the technical notes in two separate documents. The complete documentation can be reached from the Red Hat documentation page.
For System z this has been a mainly a fix release. Only a few small enhancements have been added all described in the technical notes. Here are some of them:
- libhugetlbfs support for System z
- crypto updates: libica, opencryptoki
- read only sequential data set access avoiding ftp/nfs transfers from z/OS using the zdfs file system