Joined: 14 Jan 2008 Posts: 2502 Location: Atlanta, Georgia, USA
There never was a 2.3 MVS version. The last MVS version 2 version was CICS/MVS 2.1.2, which was just prior to ESA. There was an MVS 3.3.0 version (CICS/ESA) but that's been out of support for quite sometime, along with its predecessor's 3.2.1 and 3.1.1 along with its successor, CICS/ESA 4.1.0.
CICS/TS 1.1 through CICS/TS 3.2 are the latest and greatest in z/OS (MVS) environments.