From snapshot 214:
Make username case-insensitive when logging in
From snapshot 213:
Fix elementCount inaccuracies when undoing (fixes GoL not working for a short time after undo)
Fix ctype drawing for LDTC
Show proper GoL name in HUD for LDTC / DTEC
Write powder.pref immediately every time a setting is changed
From snapshot 212:
Make custom can_move settings persistent (fixes #764)
Redo and add type parameter to sim.neighbours
From snapshot 211:
New element: LITH. Reactive element that explodes on contact with water.
From snapshot 210:
Fix air being able to go through walls for a frame after undoing
Show NONE in {ctype} signs instead of 0 when an element has no ctype
Fix some legacy lua api functions allowing you to set properties on element 0
From snapshot 209:
Fix issue where Linux version couldn't be launched from some file managers
...
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here.