Chapter 1. Upgrade to OpenShift AI 3.0 not supported
You cannot upgrade from OpenShift AI 2.25 or any earlier version to 3.0. OpenShift AI 3.0 introduces significant technology and component changes and is intended for new installations only. To use OpenShift AI 3.0, install the Red Hat OpenShift AI Operator on a cluster running OpenShift Container Platform 4.19 or later and select the fast-3.x channel.
Support for upgrades will be available in a later release, including upgrades from OpenShift AI 2.25 to a stable 3.x version.
For more information, see the Why upgrades to OpenShift AI 3.0 are not supported Knowledgebase article.