(Changes are since the 0.88c version, r605)
+ Preferences dialog
+ Key binding system, with GUI in preferences
+ Windows port (32-bit) with an installer
+ Automatically back-up edited wads (multiple times)
+ Status area on info bar -- replaces map name
+ Log viewer
- new 'Prune Unused' command removes unused stuff (sectors etc)
-  fixed explosion of wad size when saving repeatedly
-  fixed crash clicking a linedef flag when nothing was selected
-  fixed PGUP / PGDN keys to scroll the browser
-  fixed jerky RMB scrolling at large zoom factors
-  Scale Objects: implemented Z scaling for sectors
-  Default Props panel is now hidden by default
-  copy properties command ('c') now copies linedef textures
-  swapped grid keys: 'g' now makes the grid smaller, 'G' bigger
-  key for splitting lines in half is now 'k' -- it was 'x'
! removed the 192 grid size
-  prevent making two lines overlap when merging vertices
-  merge: support one selected + one highlighted
-  merge command for things -- place them at same location
-  disconnect command for things at same location
-  when a resource cannot be found, look in same dir as PWAD and IWAD
-  when saving over a map, use existing location in the wad
-  command line options: '-m' is shorthand for '--merge'
-  preference setting to swap upper and lower in Linedef panel