Note: If you have the original Steam releases of the Doom games you are up-to-date and do not need to bother reading this.
As you may or may not be aware, several versions of Doom were released between 1993 and 1995 due to bugs being found, and features being added. You can find all of the history for the releases
here.The latest version of all of the iwads are final version "1.9"
If you need to check which version of any IWAD you have, you can use this utility by Russell:
http://russell.slipgate.org/iwadverifier.phpThere are patches released by id software that will update your installation of Doom and Doom 2 to the latest version, however you have to have the original full install which includes the exe, wad, and all corresponding files. Additionally
they only run in DOS. But fear not, as patching utilities to simplify the process have been made over the years!
http://www.doomgate.de/content/files/ladopato/javapatcher/JIWadPatcher.htmlThis iwad patcher will take any of your doom iwads and update them to the latest version, all you have to do is point it at what file you want to patch. Doom 3: BFG Edition users, you might want to go ahead and revert your iwads BACK to version 1.9 to uncensor the Wolfenstein levels. Note you do want certain final outcomes:
For Doom you want "Doom_19ud" AKA Ultimate Doom
For Doom 2 you want "Doom2_19" Final release before the BFG versions were released that censored stuff
For TNT you want "TNT_19" (but you already have this)
For Plutonia you want "Plutonia_19" (but you already have this)
