Introduction

Backward compatibility issues can occur when features or configuration in a previous release are not supported in a compatible way in the new release. Every consideration is given during OIPA development to preserve compatibility between releases; however, in some cases, a required feature cannot be implemented without introducing configuration that has no counterpart in previous releases, or deprecating elements in the previous configuration that are incompatible with new features. Upgrading OIPA versions can present two types of backward compatibly issues:

• Changes to the database that have been automated with scripts provided by Oracle.

In some cases, the correspondence between the old and new configuration elements allows an automated transform to convert old configuration elements to the new ones. Automated scripts can perform generic updates for configuration elements that meet the conditions described in the release notes for each script.

• Changes to the database that you must manually configure.

Some elements of a configuration do not yield to a one-to-one conversion from old to new configuration. Changes of this nature require case-by-case analysis of the impact and necessary corrective actions for specific OIPA configurations.

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Oracle Accessibility

For information about Oracle's commitment to accessibility, visit Oracle Accessibility Learning and Support if you are hearing impaired. For OIPA Accessibility documentation refer to OIPA Accessibility Guide under the Policy Administration Libraries of Oracle Help Center (OHC).