Team Fortress 2 getting golden wrench, life-extending machine
Valve was never content with just releasing Team Fortress 2. Since the game has launched, the studio has released tons of updates and content for the game, building on its lore. Take, for example, this Engineer comic, which hints at two major updates to the Engineer class coming soon to the game.
A metal called Australium is the first addition. It has some special properties and a golden hue. The second addition will be a life-extender machine, which, as you can guess by now, extends life.
The above has been confirmed through this video, which shows the use of the Australium wrench. This teaser video also shows some other possible goodies due for the update as well.