# Installation Use the Novacura Flow server management tool to do new Flow server installation, upgrade and apply service packs.\ The differnce between an upgrade and a service pack is that can upgrade is between minor version like 6.2 to 6.3 and a service pack is always within the minor release like 6.2.3 and 6.2.7. #### Upgrade An upgrade includes new features and corrections and can change the structure of the Flow database. All Flow clients need to be updated to the same version as the Flow server. #### Service pack A service pack only includes corrections that is suitable for patching. A patch will for example not change the database structure of the internal Flow database. ![](/files/-M-oU4RgUtMnW9VbLof6) --- # 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://help.novacuraflow.com/6.11/installation-and-upgrade/installation.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.