# Deprecated functions The **Deprecated** category contains functions that had to be included in this version of Report Designer to provide backwards compatibility for files created with older Report Designer versions. You should never use any of these functions in new reports; there are no **Deprecated** functions that are not more sensibly implemented in other functions in other categories. --- # 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/pba-report-designer/9.3-report-designer/function-reference/deprecated-functions.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.