Versions of Doom and Doom II

The following is a list of the changes between different versions of Doom.

v1.0
Initial release of Doom. Internally, the game lists this as version "0.99".

v1.1

 * The first registered release of Doom.
 * First appearance of gamma correction.
 * A more stable version of the DOS extender (DOS/4GW)
 * Soundblaster 1.0 support

v1.2

 * Rewritten sound code
 * Modem/null-modem support. This release saw the network code split into external "drivers", providing a modular network system.
 * PAS-16 stereo support
 * First appearance of Nightmare skill more.
 * Mouse and joystick can be used in the menus
 * Gamma correction mode was expanded to include five settings.
 * Improved joystick calibration

Bugfixes:

Bug fixes:
 * Fix for the broadcast packet bug which caused many networks to suffer decreases in performance.
 * Z_Malloc error
 * IRQ 2 works
 * Savegame slots 5 and 6 work
 * Switches and platforms work when reloading from a saved game.
 * Network play no longer locks up when using a sound card.

v1.4

 * Support for 14.4 and 28.8k modems
 * Improved null-modem/modem support.
 * Improved version of setup:
 * Phone number list
 * Database of modem control strings
 * Addition of a level warp key (F1)
 * Allows up to 8 sound channels to be selected.


 * Addition of Deathmatch 2.0 (altdeath mode)
 * First inclusion of the Doom FAQ.
 * Multiplayer demos can be recorded.
 * Recorded demos no longer end when the player dies or at the end of a level. The 'Q' key must be pressed to end a demo.
 * Addition of the 'maxdemo' command line argument.
 * Addition of multiplayer "spy" mode (F12 key).
 * PWAD files can no longer be used with the shareware version.
 * Maps can be reloaded using the IDCLEV cheat when map editing on a LAN (????)
 * Response file support.
 * AWE32 support.

Bug fixes:


 * Projectiles no longer trigger linedefs.
 * More than two people can play over a network without crashes
 * Sound problem fixes
 * Fix for a bug with the PS/2 mouse
 * Savegame bug fix, where player saves a game under a door, restores it and presses the use key.
 * Difficulty can be selected when starting a null-modem/modem game.
 * '+' and '-' can be typed in multiplayer chat mode
 * Map bug fixes

v1.6

 * Rewrite of the null-modem/modem support (SERSETUP).
 * Improved GUS instrument mapping file.
 * Increased savegame buffer size.

Bug fixes:


 * Help screen mentions the gamma correction function.
 * Bug with response file fixed.
 * Bug when using a baud rate greater than 38,400 bps in null-modem/modem games fixed.
 * Deathmatch bug fixed where items reappeared but could not be picked up.