Weird, does anyone know why this is appearing on the administration panel, or how to have it reflect the correct version? I installed a fresh version of phpBB 2.0.18, linked it to an empty db, then restored a backup db (which was from a 2.0.17 install).
I hope I don't have to install .17, restore the db, then update phpBB to .18
Your installation does not seem to be up to date. Updates are available for your version of phpBB, please visit http://www.phpbb.com/downloads.php to obtain the latest version.
The latest available version is phpBB 2.0.18. You are running phpBB 2.0.17.