Estevão,

> After update to IBO (4.9.14.22), a TIBO_Connection must have a
> TIB_Transaction.

TIBO_Connection?

Please give a more accurate problem report.

> Without this, every Query.Prepare or ParamByName causes an Access
> Violation.
> Don´t was like this before, am I right?

You could be right.
Perhaps the quick fix I did had an unexpected problem.

> Now, all is working fine :)

You mean when you assign a TIB_Transaction?

Jason