Last Week, the May version update went live for Final Fantasy XI, and along with the 14th anniversary celebrations comes several new changes. From playonline.com:

Ambuscade has been updated with all-new foes and spoils on top of a new currency, Gallantry, for participating as a group. Furthermore, a reservation has been added on top of a variety of other adjustments.

Master Trials have been added for the most cutting-edge of adventurers to tackle and a new crystal storage system has been introduced, providing yet more new elements to experience this month.

For the full list of updates read on.