Felt like sharing this. Bungie had recently released a new patch for the PC version of the original Halo. This patch (being patch 1.10) has some bugfixes, some minor tweaks to help those in charge of servers, makes the game easier to run on newer Windows OSs (like W8), and the main thing being the patch changes the game's master server to that which Bungie owns and is watching... Instead of GameSpy (as the previous 11 years, GameSpy was in control of Halo's master server).
You can read about it http://www.bungie.net/en/Forum/Post?id=64943622
If you have the official version of the Halo game (or the Custom Edition) then playing the game online any time for the next week or so will cause the auto-update to be triggered and the game will update itself. If you do not get on at this time, the auto-update will be taken down but Bungie will host manual downloads of the patch for anyone. (The manual downloads are linked in the link above).
I gotta say, Bungie is pretty cool for doing this!