# Apply customizations The Pentaho Upgrade Installer generates a post-install report containing a list of items you may have customized from the default Pentaho setup. This `postInstallConfigReport.txt` file is generated from the CSV file you may have updated during the upgrade process. See [Specify customized items to address after upgrading](/install/9.3-install/pentaho-upgrade-cp/use-the-pentaho-upgrade-installer-to-upgrade-archive-installation/specify-items-to-include-or-exclude-pentaho-upgrade.md) for instructions. The CSV file is used to generate post-upgrade versions of the listed items separately from the existing versions of these items. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.pentaho.com/install/9.3-install/pentaho-upgrade-cp/post-upgrade-tasks-pentaho-ugrade-cp/apply-customizations-post-upgrade-tasks.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.