There are no automatic upgrade options for previous versions
of IBM® Rational® Change. Instead, you must install
the software into a new directory. Then, apply any previous customizations
to the new installation.
Upgrading from a stand-alone server to a central server
To upgrade to a central server, install a new copy of IBM Rational Change. If you continue to run
your previous server in stand-alone mode, remove any databases from
that server before adding them to your central server.
Upgrading Rational Change on Jetty 8.1.3
Insufficient randomization of hash data structures causes
Jetty 5.1.14 to be vulnerable to a denial of service. A remote attacker
can use this vulnerability to cause the consumption of processor resources.
The attacker can send multiple specially crafted HTTP POST requests
to an affected application that contains conflicting hash key values.
These requests cause the Jetty server to become unresponsive. Resolve
the problem by running Rational Change
on Jetty 8.1.3.