It's a very big day for World of Warcraft. While the Shadowlands expansion has been delayed to a later date in 2020, the pre-patch that contains a number of significant updates and improvements is available right now in North America.

The European launch is next, with other regions presumably to follow thereafter.

This is a gigantic update that introduces the "majority" of the game system changes that will come in Shadowlands, including the first-ever level squish for the MMO. Players are now reduced to a maximum level of 50, in preparation for the new level cap of 60 when Shadowlands releases. The pre-patch also introduces the Exile's Reach starting zone, new customization options for all races, and adjustments to item and stat levels.