Some license keys that are purchased for Rational® Publishing Engine include
date-effective license versions within them. For major release version
of Rational Publishing Engine,
like version 1.2.1, you must update your licenses for the current
version of Rational Publishing Engine to
use the product.
Do not upgrade from Rational Publishing Engine 1.2.0.1
or earlier to 1.2.1 until you have updated license keys for Rational Publishing Engine 1.2.1,
which you can download from the IBM® License
Key Center.