Environment Requirements

Moodle environment requirements are defined in the file admin/environment.xml.

For each major Moodle version this defines things like:

Minimum database versions for each platform (MySQL, MariaDB, PostGreSQL, Microsoft SQL Server or Oracle)
Minimum PHP version
Required and optional PHP extensions (e.g. curl, openssl, mbstring etc) including the plugins that might require them.
Required and optional PHP settings (e.g. memory_limit, file_uploads, opcache.enable etc)
Any custom checks usually defined in lib/upgradelib.php such as check_database_storage_engine and check_database_tables_row_format

These are the checks you see when you perform an install or upgrade and are available in the server environment page under:

Site administration > Server > Environment
/admin/environment.php

As this file is in the git repository, you can query its log in the master branch to see the latest updates to the file i.e.

(master)$ git log admin/environment.xml

Revision #3
Created 5 years ago by Moodle Wiki
Updated 5 years ago by Moodle Wiki