Upgrading from Version 3 Release 1

This information is about upgrading to CICS® Transaction Server for z/OS®, Version 5 Release 2 from CICS Transaction Server for z/OS, Version 3 Release 1.

In releases before CICS Transaction Server for z/OS, Version 4 Release 1, the information about upgrading from previous releases to the current release of CICS Transaction Server was called the Migration Guide. Although the term “migrate” was used in the CICS documentation to refer to the process of replacing an older release of CICS with a newer release, the industry-standard term for this process is “upgrade”, so the CICS documentation has been changed to use this term. “Migrate” is now used only to refer to the processes of moving data or applications to a different program or environment, or of moving from the use of one function or interface in CICS to the use of a different function or interface.