The patch is 1.2GB - some games are that big. Anywho, you can grab the patch through torrent and the instructions on how to apply it are here. Please note that:
Once Book 11 goes live, the following step will apply:
6b. Once the files have been verified by the Launcher (around 3700 - 4000 files, which takes on average around 30 minutes) you will be presented with the login screen and then you will be able to enter your ID and password and log into the game.