Bukkit

Added ability to change dates
Added blazed to the available entities
Added join/quit messages
Added expression 'random ... out of ...', e.g. 'random player out of all players'
Removed custom commands from Skript's /help topic
Changed how effect commands work - they now use a custom prefix
Improved errors a bit
Changed probabilities of an item being chosen out of an alias
Fixed issues with command reloading
Fixed some instances where no file & line info was printed for errors
Fixed Skript not using UTF-8 on some systems
Fixed the 'exit'/'stop' effect causing errors
Fixed 'else' once again
Fixed fireballs exploding in the shooter's face
Fixed a possible issue with the chat event not being called
Fixed possible issues with values being overwritten when using delays
Fixed the expression 'target'/'targeted ...'
Fixed an error when placing certain blocks
Fixed an error when setting a message to nothing
Fixed 'if' not being ignored if it was not all lowercase

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