TCC 7.5 versus Taleo 12.A

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Good day,

We are migration our Taleo from 7.5 to 12.A.

Our TCC is currently pointing to our 7.5.1. production zone (note that 12.A is not an option in the drop down list)

Is there a set up to be done on our TCC or is it fine?

If the set up to be done on our TCC, what should we do?

Any advice?....

Thanks