PTR is closed

Hortus just posted that the PTR server for patch 2.4.2 has been taken down, and that the PTR phase for the patch has ended. This is a strong indicator that patch 2.4.2 is on its way soon, perhaps during some expected maintenance tomorrow.

Take a look at the official and un-official notes for a comprehensive look at what will change. Nothing in the patch is game-breaking, in my opinion, but there are some nice changes. Some of the major highlights include:

• Changes to the way arena points are calculated.
  

• Void Shatter no longer has a cooldown, and other cooldowns have been reduced.

• If you are sheeped / polymorphed by a mob, you will no longer gain back health (ie: the mass sheep in Aran, which regens your health before he fire blasts the raid).
  

• Many main hand weapons are now one hand weapons.

WoW Insider will carry the latest on the patch, including as soon as we know when it's set to go live. Stay tuned!

Edit 3:24 p.m. EDT: It should be noted that the final version of the patch notes have not been released yet, however they are usually close to what the PTR patch notes are.