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 2.
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 a release of CICS earlier
than this, you are recommended to read the information about upgrading
and about changes to functions that was provided in the documentation
for any additional intervening releases.