Features

The list of the increased limits:

limitoldnewfactor
MAXVISPLANES 128 1024 *8
MAXVISSPRITE 128 1024 *8
MAXDRAWSEGS 256 2048 *8
MAXPLATS 30 7680 *256
SAVEGAMESIZE 180224 2883584 *16
MAXLINEANIMS 64 16384 *256
MAXOPENINGS 16384 65536 *4

Effects of these new limits:

MAXVISPLANES- removes visplane overflows (VPO) in most maps
MAXVISSPRITE- no more vanishing sprites in most maps
MAXDRAWSEGS - the number of segments of linedefs drawn is no longer limited to 256
MAXPLATS - many more platforms can now be in motion at the same time
SAVEGAMESIZE- now savegames can be used on much larger maps, with many more "things"
MAXLINEANIMS-
MAXOPENINGS -