What are the system requirements for running Expression Engine?
Expression Engine has specific system requirements to ensure optimal performance and stability. It typically requires a server running PHP, with a version compatible with the latest release of Expression Engine. As of now, it is advisable to use PHP version 7.2 or higher, since earlier versions may not be actively supported or may pose security risks.
In terms of database support, Expression Engine is compatible with MySQL, with a recommended version of MySQL 5.6 or later. This ensures that all database-related functionalities operate effectively. The server should also support the Apache HTTP server, or other compatible web servers, which can handle rules and configurations necessary for Expression Engine's operation.
Furthermore, it is essential to have appropriate permissions set for files and directories to allow for updates, uploads, and caching to function correctly. Adequate hosting resources, including memory and CPU, are also necessary for handling more complex sites or increased traffic.
For the latest details and specific version requirements, it is always a good idea to refer to the current documentation on the Expression Engine website, as the system requirements can evolve with new updates and releases.

Answered Oct 19, 2025
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