CS:GO Halloween 2018 update
The Halloween content for Counter-Strike: Global Offensive is here. Valve released an update for CS:GO today that turns all players into ghosts when they die. These apparitions can be seen by other ghosts in the world, apply graffiti in the world, and more.

I'm also hearing the chickens are ready for some tricks and/or treats.

We have the full changelog from the update for you. There are more than just ghosts changed in this update, so be sure to read up.
Changelog for CS:GO for October 22, 2018