Are you still running your applications on CICS/VSE 2.3 ?
Ingolf24 120000DRN3 Comments (3) Visits (1012)
CICS/VSE 2.3 had an end of service date of October 31, 2012.
If you are still dependent on CICS/VSE, it is time to migrate to CICS TS for VSE/ESA 1.1.1.
For details on migration to CICS TS see the "CICS TS Migration Guide".
z/VSE 4.2 - end of service October 31, 2012 - was the last release that provided a compatibility environment
for CICS/VSE and CICS TS. That is z/VSE 4.2 included skeletons and (security) definitions to run
CICS/VSE and CICS TS within one z/VSE system. DL/I DOS/VS 1.10 supported CICS/VSE, DL/I VSE 1.11 supported CICS TS.
z/VSE 4.3 dropped the compatibility environment and replaced DL/I DOS/VS 1.10 and DL/I VSE 1.11
by a new DL/I release - DL/I VSE 1.12.
DL/I VSE 1.12 only supports CICS TS. However, CICS/VSE can still run on z/VSE 4.3, if you are not dependent on DL/I.
CICS/VSE can not run on z/VSE 5.1.
I recommend to migrate from CICS/VSE to CICS TS on z/VSE 4.2 or prior releases.