Updating from phpBB 3.0.x/3.1x to phpBB 3.2.x or phpBB 3.3.x

[Solus]

Updating from phpBB 3.0.x or 3.1.x to 3.2.x or 3.3.x is just the same as updating from stable releases of phpBB 3.3.x

However you can also start with a new set of phpBB 3.3.x files.

Delete all files EXCEPT for the following:
The fileconfig.php
The directoryimages/
The directoryfiles/
The directorystore/
(The directoryext/
Upload the contents of the 3.3.x Full Package (except for config.php) into your forum's directory. Make sure the root level .htaccess file is included in the upload.
Browse to /install/app.php/update
Read the notice Update database only and press Submit
Delete the directoryinstall/

[Kygo]

Updating from phpBB 3.0.x or 3.1.x to 3.2.x or 3.3.x is just the same as updating from stable releases of phpBB 3.3.x

However you can also start with a new set of phpBB 3.3.x files.

Delete all files EXCEPT for the following:
The fileconfig.php
The directoryimages/
The directoryfiles/
The directorystore/
(The directoryext/
Upload the contents of the 3.3.x Full Package (except for config.php) into your forum's directory. Make sure the root level .htaccess file is included in the upload.
Browse to /install/app.php/update
Read the notice Update database only and press Submit
Delete the directoryinstall/