Upgrading to Moodle 1.9

Before upgrading, please...

• Check that your site meets all system requirements for 1.9 in Administration > Server > Environment
• Do a full database backup!
• Remember to purge PHP cache if using any PHP accelerator
• Read Upgrading to Moodle 1.8 if you are upgrading to 1.9 from 1.6 or 1.7
• Read Upgrading to Moodle 1.7 if you are upgrading from 1.6

Notes

• If upgrading from 1.6 or later, you must have converted your site to Unicode
• If upgrading from earlier than 1.6, we recommend upgrading to 1.6 first, then 1.9
• We recommend PHP 5.2 or later, but you must have at least PHP 4.0.16

See also

• Release Notes
• Category:Moodle 1.9
• Question Engine Changes in Moodle 1.9 (includes some important documentation on question engine upgrade for those who make extensive use of the question bank and quiz module)

Using Moodle forum discussions:

• Automatic update of language package while updating in 1.9
• Change in Moodle 1.8 and 1.9 : admin tree icons are now themeable - some themes need to be upgraded