Currently Final Fantasy XIV is in alpha testing, but soon Square-Enix will be moving into the beta phase.
Square-Enix sent Siliconera a handful of images today so players can see the changes that have been made. The most notable difference is that lighting effects have been added in. They really do change the look and feel of each area.
There are also some smaller changes including new characters and objects in the environments. You can check them out after the jump. Siliconera also got their hands on some new screen shots from the beta version of the title. You can check those out over on their site.
(Comparison Source: Siliconera)