This information is about upgrading to CICS® Transaction Server for z/OS®, Version 5 Release 2 from CICS Transaction Server for z/OS, Version 4 Release 1.
If you are upgrading from an older release, select the information
set for the release from which you are upgrading. The information
sets for older releases include additional information about changes
that took place in the intervening releases.
Note: The oldest release
for which information about upgrading is provided with CICS Transaction Server for z/OS, Version 5 Release 2 is CICS Transaction Server for z/OS, Version 3 Release 1.
If you are upgrading from an earlier release of CICS,
you are recommended to read the information about upgrading and about
changes to functions that is provided in the documentation for any
additional intervening releases.