It would be nice as part of the install process if an alias was created to the various PDSs that are installed.
I.e. BREXX.CURRENT.RXLIB --> BREXX.V2R5M3.RXLIB etc
This could be done in the JCL that unxmits the various libraries (delete the alias and make a new one, or provide a seperate step to make the aliases if desired). This way the TSO clist or other JCL would only have to referece BREXX.CURRENT.XXPDSXX instead of having to update all the JCL etc.