Fixes & Updates in 1.3:

• PunkBuster(TM) support has been added.
• EAX(R) ADVANCED HD(TM) support in the sound engine contributed by Creative Labs(R). Doom 3 base game comes with room reverb data.
• To utilize EAX(R) ADVANCED HD(TM) in Doom 3, you must have 100% EAX 4.0 compatible sound card. Please refer to your sound card manufacturer for details on whether or not your sound card supports EAX 4.0.
• Sound Blaster(R) Audigy(R) 2 users who wish to utilize the new EAX 4.0 feature in Doom 3 should download the latest Creative Beta Drivers for the card released on April 5th, 2005. Not using these drivers may result in game instability while using EAX 4.0.
• Server provides .pk4 file download URLs (http/ftp), client has internal download.
• New class of .pk4 files: 'addon paks' are only referenced when the map is loaded in.
• .pk4 downloads and addon paks come with a number of fixes to the 'pure server mode' filesystem code.
• Fixed ragdoll bounciness.
• Fixed how Doom 3 detects LAN client vs. Internet clients.
• LZW compression of render demos.
• Fixed command line parameter passing.
• Added a QuakeIII-style graph of the connection quality for network clients controlled with net_clientLagOMeter cvar displays a graph of how much the client predicts ahead of the server note that you can change the minimum predict ahead of a client by setting net_clientPrediction

• Added UploadImage to idRenderSystem interface. This lets the user blit images to the renderer.
• Supports fs_game_base; this lets you base a mod off base game + d3xp + your own content.
• Most of the download redirection is handled in the game code, and can be extended.

• ALSA device opened non-blocking to avoid hangs.