What about SE and C-ISAM?

Hi Informixers, we are presently running a mixed environment of Informix back- and frontends (on Siemens-Nixdorf RM400, Reliant Unix 5.43): SE 5.10UC1 NET 5.10UC1 ONLINE 5.10UC1 STAR 5.10UC1 C-ISAM 5.10UC1 ESQL/C 5.10UC1 4GL 4.11 SQL 4.11 We now want to migrate to the newest versions available. So far, I have received and installed 4GL and SQL 7.20UD1, ClientSDK 2.01UC1 and IDS 7.30UC2 on our migration machine. I understand that the ClientSDK contains the suitable ESQL/C version for IDS 7.30, but what about C-ISAM and SE? The product query for the Siemens-Nixdorf platform on TechInfo shows that 7.24UC1 and SE 7.24UC5 are the latest releases. I have the 7.23UC1 versions on my desk. My questions are: 1) Does ClientSDK contain C-ISAM, and is that compatible with SE 7.2x? 2) Or do I have to install C-ISAM 7.2x 3) Is SE 7.2x compatible with 4GL/SQL 7.20UD1? 4) Is SE/C-ISAM 7.23UC1 reasonably bug free, or are there compelling reasons to order the upgrade to C-ISAM 7.24UC1 and SE 7.24UC5? Regards, Richard -- +--------------------------+------------------------------------------+ | Dr. Richard Spitz | INTERNET: spitz@ana.med.uni-muenchen.de | | EDV-Gruppe Anaesthesie | Tel : +49-89-7095-3413 | | Klinikum Grosshadern | FAX : +49-89-7095-8886 | | 81366 Munich, Germany | GSM : +49-172-8933578 | +--------------------------+------------------------------------------+