MP-RAS "enablers" ? Also, differences between MP-RAS 030200 and 030301

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MP-RAS "enablers" ? Also, differences between MP-RAS 030200 and 030301

Since this is an MP-RAS question, apologies for off-topic if it is, but "Teradata Database" was the closest I could find in the list of possibilities.

I have a test/development machine running "011906 RELEASE 030301 Version 01 OS" and a target machine running "100597 RELEASE 030200 Version 01 OS + 030201 Enablers / Maintenance Updates Edition 8", both MP-RAS.

The target machine is not available for development. I have a C application program not doing much in the way of low-level system stuff.

First question [mostly just out of curiosity]: what does "enablers" mean in this context -- what's the difference between MP-RAS and MP-RAS with "enablers"? Or is it merely that the target machine has "not quite all of Release 030201 but more than Release 030200" on it?

Second question [primary interest]: what "gotchas", if any, would prevent a C application program running on the target machine which runs OK on the test/development machine? Where do I find documentation of the feature/function differences between MP-RAS 030200 and 030301 that would matter to a C application program?