Daniel,

> If I upgrade to Firebird 2.0 and I'm using IBO42H,
> am I going to run into some issues?

> Should I stick to version 1.5, I am only using IBO
> tdataset compatible components.also Delphi 6.
>
> comments would be welcomed?

You may be able to make some things work but it will be fraught with
problems if you try and use anything new Firebird 2.0 has to offer that
required some work on my part.

You are best to upgrade your version to IBO 4.7.

Jason Wharton