It’s a rendering glitch where it fails to render the area past the door upon opening it. Thus causing only the skybox to be seen in place. It stops rendering unseen parts of the map for the client as optimization; […]

It’s a bug from the Mecha Update.

Source Engine Changes (TF2, DoD:S, HL2:DM)
Updated some Big Picture features
Additional improvements for client stability
Team Fortress 2
Australian Christmas has begun!
Added community-contributed winter event […]

HLDS email has been sent out, update iminent

We’re working on mandatory updates for TF2, DoD:S, and HL2:DM. We should have them ready soon.
-Eric

http://www.teamfortress.com/post.php?id=9211

TF2 Wiki:

A picture of the Spy and the Scout’s mother from Meet the Spy can be seen on the table to the right of the chips at 1:08.

That’s all it is.

http://www.teamfortress.com/mvm/faq/

Nope.

G’day everyone!

I felt that this post was required due to the enormous amount of debate and confusion regarding the newest TF2 update, Mann vs. Machine….mostly the Mann-Up Mode that everyone seems so irate […]

http://www.teamfortress.com/mvm/bounty/

From the HLDS mailing list:

Here are some answers to questions regarding hosting MvM servers:
* Players can join your server through any means they can join PvP games: the server browser, ad hoc joins, or the new […]

Just so most people don’t fall too behind, the bulk of people solving this ARG are located here. http://facepunch.com/showthread.php?t=1200947

The ARG discussion starts at around page 130

  jumpedQuote

http://www.teamfortress.com/pyromania/thepoopyjoefiles/

Not my image.

  zacharaniQuote

gnashtime:
Pyro video is coming monday! cant wait!

Thursday would be a more accurate assumption. Monday will most likely be the start of a multi-day update.
Until then…

  gukingofheartQuote

Another interesting note is that today’s update was the 299th update. It’s been speculated for months now that the next major update was maybe going to be saved for the 300th update. With all the updates that […]