Forum OpenACS Development: Re: Legacy OpenACS under Oracle 12c
So I think your customer's plan will probably work fine, as long as they have the right programmers available to fix the occasional bug.
Wait, or do you mean they want to try to run the latest OpenACS 5.9.1 code, while simply importing the data from their old OpenACS 5.4 system? No, of COURSE that (probably) won't work. If it DID, why would anyone go to all the trouble of writing those upgrade scripts? Keep running the same old OpenACS 5.4 code and everything should be ok. If you want to use that data in a new OpenACS 5.9.1 system, well that's what the upgrade scripts are for.