> i have at the moment 4.9.6 installed in Delphi 2010.
> I have downloaded the 4.9.7 installer.
>
> Should I just install the new version, or do I have to uninstall precious
> version first?

The installation has a clean sweep of previous installations built into it.
I have not yet built an uninstaller because deleting the files and telling
Delphi not to load the packages anymore does it for you.

You definitely should move to 4.9.7 as all previous 4.9.x versions have BLOB
columns broken.

Regards,
Jason Wharton