+ <p>First, you should make a copy of your existing <code>config.php</code> file; keep it in a safe place! Next, delete all the existing phpBB files, you may want to leave your <code>files/</code>, <code>images/</code> and <code>ext/</code> directories in place, otherwise you will lose your file attachments, uploaded images and get error due to missing extension files. You can leave alternative styles in place too. With this complete, you can upload the new phpBB files (see <a href="#install">New installation</a> for details if necessary). Once complete, copy back your saved <code>config.php</code>, replacing the new one. Another method is to just <strong>replace</strong> the existing files with the files from the full package - though make sure you do <strong>not</strong> overwrite your config.php file.</p>

+ <p>You should now got to <code>/install/app.php/update</code> which will display a warning: <strong>No valid update directory was found, please make sure you uploaded the relevant files</strong>. Beneath that warning you will see a radion button <em>Update database only</em>, just click <strong>Submit</strong>. Depending on your previous version this will make a number of database changes. You may receive <em>FAILURES</em> during this procedure. They should not be a cause for concern unless you see an actual <em>ERROR</em>, in which case the script will stop (in this case you should seek help via our forums or bug tracker). If you have shell access to your server, you may wish to update via the command line interface. From your board's root, execute the following command: <code>php bin/phpbbcli.php --safe-mode db:migrate</code>.</p>

+ <p>Once <code>/install/app.php/update</code> has completed, it displays the success message: <strong>The database update was successful</strong>. You may proceed to the Administration Control Panel and then remove the install directory as advised.</p>