Changed Files

This method is meant for those wanting to only replace the files that were changed between a previous version and the latest version.

This package contains a number of sub-archives, each contains the files changed from a given release to the latest version. You should select the appropriate archive for your current version, e.g. if you currently have 3.3.0 and are updating to 3.3.1, you should select the sub-archive.

  1. Make a backup of the original files

  2. Make a backup of the database

  3. Locally, perform for the following steps:

    1. Download the phpBB 3.3 Changed Files archive

    2. Extract the install/ directory

    3. Extract the vendor/ directory

    4. Extract the contents of the desired sub-archive for your version

  4. On your web server, delete the vendor/ directory

  5. Upload the install/ directory

  6. Upload the vendor/ directory

  7. Upload the contents of the selected sub-archive

  8. Update the database:


    For large boards, you may wish to update via the command line instead of using a web browser. From your board's root, execute the following command: php ./bin/phpbbcli.php db:migrate --safe-mode

    1. Using your web browser, visit /install/app.php/update in your board's root (e.g. You will see the following warning message: No valid update directory was found, please make sure you uploaded the relevant files. This is expected and not an error.

    2. Select "Update database only" and click Submit

    3. Wait for the progress bar to reach 100% and for a message indicating that the update has completed

      Depending on your previous version this will make a number of database changes. You may receive FAILURES during this procedure. They should not be a cause for concern unless you see an actual ERROR, in which case the script will stop (in this case you should seek help via our forums).

  9. Delete the install/ directory on the server