From the looks of it, the companion system lets two players bond via rings that can be upgraded from their time together. There are also companion dungeons and a special feast meant to be consumed by the very best of friends.
Other parts of the patch upgrade the wings system (fly my pretties!) and allow players to transmute their weapons to tier 11. To promote the patch, Webzen is giving out a bundle of goodies that includes a gold spark, epic pet tickets, rainbow feathers, condor’s flames, and condor’s feathers. You can make one heck of a pillow with all of that!