Star Wars: The Old Republic's 2.4 patch, look no further than the preliminary test server notes. We say "preliminary" due to the bold, red-letter font that BioWare uses to remind players of the temporary nature of test server patch notes.
Current highlights include active four-vs.-four warzone arenas which feature small-scale PvP and a last-team-standing best-of-three format. BioWare has also removed eight-vs.-eight ranked warzones from the ranked warzone queue. Finally, the patch includes a number of class and crew skill tweaks as well as an adjustment to daily and weekly PvP missions that removes the win component in favor of a participation component.