Fixes

Automatic weapon switching now works in co-op games.
voodoo_doll spawning bug exhibited on maps such as caesar.wad.
Boss Brain doesn't die by rockets as easily: Splash damage is now considered to be infinetly tall when testing boss_brain vs missile collisions.
doom2's MAP30 could not be completed if cvar game-corpse-time was set to 1.
Mobj→Soundtarget data is now saved. This fixes the bug where monsters would forget where they heard the player(s) after loading a saved game.
Mobj→Tracer data is now saved. This fixes the bug where the targeted mobj for archvile fire attacks and revenant homing missiles would be lost after loading a saved gane.
Animated textures in tnt and plutonia were not working correctly.
A logic error in the original doom which prevented the GOTMEDINEED message from ever being used.
An inverted test in the original doom logic which prevented the OUCH face from ever being used.

Changes

Removed fixed limits:
- Max number of boss brain spawnspots.
- Max number of archived mobjs.
- Max number of active platforms.
- Max number of active switches.
- Max number of adjoining sectors (MAX_ADJOINING_SECTORS): Used when searching for next heighest/lowest plane.
Changed: Automatic weapon switching has two modes: 1= If better, 2= Always.
Changed: Save & Load slots are now sync'd in the menu. This means that after saving a game in slot #3, the next time the load game menu is entered, the cursor will be placed on slot #3 automatically.
Changed: cvar ctl-look-speed: Is now specified using a floating point value in the range [0…1].
Changed: ccmd give: number (0-NUMWEAPONS) = give an individual weapon (as if found), f = give the player the power of flight.
Changed: ccmd reveal: Added mode 4 = show subsectors when viewing the automap.
Changed: ccmd spawnmobj: Added an alternative means to specifiy the type to be spawned using the mobj_name (as defined via a thing definition).

game_status_console_variables: read-only cvars that show the status of various player/game values, player-health, map-name, etc.
The “skill 0 trick” is now supported (in the original DOOM, if the skill mode was set to zero using the “-skill” command line option, no monsters would be spawned into the map at start.
ccmd exitlevel: Exit the current level via the normal exit and go to the intermission.

Support added for boom thing flags:
- Not Deathmatch: Thing will only be spawned if not playing a deathmatch game mode.
- Not Coop: Thing will only be spawned if not playing a co-operative game mode.
Support added for boom linedef flags:
- Pass Thru:
- Any Trigger: This flag overrides xg activation type requirements unless the ltf2_override_any flag is set in the XG the line_type→Flags2 paramater.
Support added for boom extension lumps:
- animated: Used to define flat/texture animation sequences.
- switches: Used to define two-state texture animation sequences for use as switches.
Most of j_heretic's MF2_ flags: Are now supported via thing definitions (including floorclip', floatbob' etc…).
New values:
- Player|Green Armor Class: Armor class of the green_armor pickup.
- Player|Blue Armor Class: Armor class of the blue_armor pickup.
- Player|God Health: Health displayed in the HUD when in god_mode.
- Player|IDFA Armor: Armor given with the idfa cheat.
- Player|IDKFA Armor: Armor given with idkfa cheat.
- Player|IDFA Armor Class: Armor class given with idfa cheat.
- Player|IDKFA Armor Class: Armor class given with idkfa cheat.
- MegaSphere|Give|Health: Health given when a mega_sphere is collected.
- SoulSphere|Give|Health: Health given when a soul_sphere is collected.
- SoulSphere|Give|Health Limit: Max health limit when a soul_sphere is collected.

New client-side cvars:
- player-berserkswitch: Automatically switch to fists when collected.
- player-death-lookup: Makes the player look upwards when killed.
- player-weapon-nextmode: Use custom order for next/previous weapon cycle.

Added new fullscreen view modes (accessed directly using the console or using the increase/decrease view window controls):
- Hide: No HUD indicators will be drawn (note, chat and other messages will still be visible as normal).
- Floating statusbar: The status bar is drawn on top of the player view (instead of underneath it) positioned centrally.
New cvars:
- hud-color-a: Alpha value of counters shown in fullscreen mode.
- hud-face: Show the Doom Guy's face in fullscreen mode.
- hud-icon-alpha: Alpha value of icons shown in fullscreen mode.
- hud-status-alpha: Alpha value of status_bar background.
- hud-status-icon-a: Alpha value of statusbar icons/counters.