- If both DOOM.WAD and DOOM2.WAD are present, an IWAD selection dialog is now presented at game start if no IWAD command-line parameters are specified
- Chocolate Doom’s built-in flip levels feature can now be toggled while in-game by typing cheat code ‘IDFLIP‘
- Monsters in deathmatch mode can now be enabled by using command line switch -dmm
- In Doom sandbox network games, fixed crash when placing Doom II monsters without wad stealing enabled
- In network games, the player’s drop object timeout is no longer shared between players (applies to both dropping monsters in sandbox and dropping ammo backpacks in coop)
- Fixed a frequent crash related to song selection at the start of a level
- Fixed bug where randomized song selection would choose title screen songs
- The ‘F’ key for bot follow command can now be disabled in marshmallow.cfg
- The ‘Q’ key for platforming sprint can now be disabled in marshmallow.cfg
- Barrel pushing can now be disabled in marshmallow.cfg or server.cfg by changing BarrelPushing to zero
- BFG splash damage can now be disabled in marshmallow.cfg or server.cfg by changing DangerousBFG to zero
- When playing E1M8 in deathmatch or sandbox modes, the outer walls of the boss room are lowered at the start of the round
- New deathmatch options DM_AllowExit and DM_ KillOnExit have been added to both marshmallow.cfg and server.cfg
- New option DeathmatchWeapons has been added to server.cfg
- New Game option on main menu is no longer grayed out during a bot game
- Cheats are allowed in Nightmare 2.0 skill, but not allowed in vanilla Nightmare skill
- Multiplayer-only map things are now enabled for an entire session when starting the game with command line option -dmw
- V-Sync is no longer forced-on when game is started
- Stats in automap now on by default
- Misc. soundfixes option now off by default due to related crashes
- Blood splats or xdeath is no longer triggered when player uses pistol
- Special deaths in Brutal gore mode now occurs by a 60% chance
- Chainsaw no longer counts towards player accuracy stats
- PKE meter is now disabled in deathmatch
- Bot target assignment is no longer active in single player
- Fixed various compiler warnings