Bukkit

Added new commands /skript reload all/config/scripts/<script> and /skript enable/disable all/<script>
Added enchantment support
Added condition 'is enchanted'
Entities can now be deleted
Added effect 'push' to push entities around
Added expressions 'name of <player>' and 'display name of <player>', latter of which can be changed
Added expression 'message' which holds the message in chat events and which can be changed
Added loops 'loop ## times' and 'loop numbers from ## to ##'
Added booleans as available command arguments and it now recognizes on/off as well
Readded the physics event
Improved detecting of empty configuration section
Improved the 'drop # experience' effect to accept expressions as experience as well
Fixed delays not working in conditionals/loops at all
Fixed the 'damage' and 'kill' effects not damaging the entity but setting its health
Fixed the 'health' expression returning negative values if the entity is dead
Fixed 'inventory of <block>' not working
Fixed errors when parsing large numbers
Fixed the teleport event and allowed different timestates for the 'world' expression
Fixed "There's no null in this event" messages
Fixed the expression 'fuel [slot] of <block>' conflicting with the default alias 'fuel'
Fixed furnace slots (again)
Fixed command arguments having to be lowercase
Fixed a few possible issues

The damage in damage events is still the raw damage, i.e. without any armour/critical/enchantment modificators applied.
If no world is specified in a periodical event no errors are printed if one uses the event-world (e.g. by using 'time' instead of 'time of <world>'), but it will fail silently when the script is executed.

see also: https://github.com/Njol/Skript/issues?labels=bug&page=1&state=open