The latest optional official patch for DayHard, made by DayHard team and uploaded here to moddb.
So this is the patch at fileplanet and Planet Half-life that didn't make it into Moddb's server, and now it's here. This is completely optional. Below, you have the patch's readme. Enjoy.
DayHard mod PATCH03B--- DayHard v.0.88 ---Install this in your Day Hard folder.
(situated in Valve\SteamApps\SourceMods)
Be sure to extract the content in the mod folder, so that it will overwrite some files.
This patch FIX:KEYBINDINGS
-Changing the default keys in-game, no more results in a reset next time DayHard is loaded.DAYHARD PART1
-Improved graphic in the map (specially the lights in the rooms).
-Deleted the gasoline tank to avert scripts problems in the map.
-Corrected minor problems in part4.DAYHARD PART3
-Improved graphic and perfomance in several zones.
-Energy field bug should now be okay...(I hope!).VOYAGE
-If your pc doesn't load the map, I've added a client-side command to load part4.
Note: The map will load but you'll not see "Loading..." on the screen.
-Improved skybox detail.
-Corrected a zoom problem with the camera.DAYHARD PART4
-Jack now will follow you in the tram.
-Corrected minor problems in part4.