# ====== Porting changelog ======
#
# -- v3 (2010.Feb.18) ---
#
# MAPCG: quicksand - red floor fixed, now renders QUIKNOAN with ripple effect.
# MAPAV: yellow springs in 3rd room were fixed.
# MAPAV: old hard mode-only platforms were "turned off". Map geometry was kept, though.
# MAPB5: old easy mode-only FOF (sector 136) was "turned off". Map geometry was kept, though.
# MAPB7,B8 and B9: linedef texture TOMBST3 causes SigSegv, so replaced with ACZWALP.
# General: SOC spike added, now spikes have collision. See Porting SOC v3.
#
# -- v4 (2010.Mar.20) ---
#
# MAPAK: door opening now plays sound 78 (lindef 4846 and 4862 - Linef type 414). Was 138.
# MAPAL: elevator trigger now plays sound 78 (lindef 1139 - Linedef type 414). Was 138.
# MAPBB: old easy mode-only FOFs (several sectors near sector 61) were "turned off". Map geometry was kept, though.
# MAPBK: door opening now plays sound 78 (lindef 4802 and 4818 - Linef type 414). Was 138.
# MAPBK: old easy mode-only FOF (sector 492) was "turned off". Map geometry was kept, though.
# MAPBL: elevator trigger now plays sound 78 (lindef 1139 - Linedef type 414). Was 138.
# MAPBL: old easy mode-only FOFs (sector 193 and 197) were "turned off". Map geometry was kept, though.
# MAPBS: linedef texture OTHZW2W (not ported) replaced with THZWAL02. Near sector 593.
# MAPC3,6,9: map now exists upon defeating the boss.
# MAPCF: map now exists upon defeating all bosses.
# MAPCI-CO: MR's special stages now accessible and SKYNUM fixed (I don't know why they were removed from
# MAINCFG. Compatibility?).
# -- v5 (2010.Sep.19) ---
#
# MAPAA,B,C,Q: lava is now liquid. 'Block Enemies' linedef flag was added making lava FOFs act
# like it originally was.
# MAPBA,B,C,Q: idem.
# MAPC7,8,9: ibidem.
# MAPBU: (original error, fixing) Custom exit was fixed (sector 21), MAPBV is now accessible.
# MAPBY: The boss (thing 150) no longer gets stuck over invisible FOF. Wrong Z position fixed.
# MAPA5,B5: (original error, won't fix) there's an invisible platform in sector 26. Same happened with SRB2 v1.09.4.
#