# Pentaho upgrade You can upgrade your Pentaho products from version 8.3 or later to version 10.2 with the Pentaho Upgrade Installer. The upgrade installer checks your environment for version 8.3 or later Pentaho products, creates a backup of these products, then upgrades them to version 10.2. The Pentaho Upgrade Installer works for any Pentaho products you have installed on your server or workstations, including your Pentaho Server. The Pentaho Upgrade Installer requires 22 GB of free space to perform the upgrade process. **Note:** The Pentaho Upgrade Installer is not supported on macOS. This upgrade documentation assumes you are an IT administrator upgrading all your Pentaho products from 8.3 or later to 10.2. If any of your Pentaho products are a version earlier than 8.3, the Pentaho Upgrade Installer does not proceed with the upgrade process. If you need to upgrade your Pentaho products from a version earlier than 8.3, you must upgrade your products to version 8.3, then use the Pentaho Upgrade Installer to move from version 8.3 to 10.2. See the [Pentaho Server Upgrade Installer](https://support.pentaho.com/hc/en-us/articles/360021841132-Update-8-1-or-8-2-to-8-3-with-Pentaho-Server-Upgrade-Installer) for instructions on upgrading from earlier versions to version 8.3. To learn about changes made in previous releases, see the What's New section for the respective releases. --- # 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/10.2-install/pentaho-upgrade-cp.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.