Introduction
IBM z/VSE 6.1 introduces a version of the IBM CICS Transaction Server for z/VSE (CICS TS for z/VSE 2.1). This version is the first major enhancement since 2000.
CICS TS for z/VSE 2.1 is based on IBM CICS TS for VSE/ESA 1.1.1 and replaces CICS TS for VSE/ESA 1.1.1 in z/VSE 6.1. There is no need to recompile or relink CICS applications if they do not use CICS TS internal control blocks or CICS interfaces.
This chapter describes key functions of CICS TS for z/VSE 2.1 and other enhancements and changes that are included in this release, ...

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