http://assets.minecraft.net/12w27a/minecraft.jarhttp://assets.minecraft.net/12w27a/minecraft_server.jar* Boats, when broken, now drop boats - Thanks Dinnerbone for the tip!
* Re-added debug graph on F3 menu
* Signs are stackable now
* Crafting them now gives 3 signs instead of 1
* Stack up to 16
* Added /debug command to enable and disable profiling
* Changed a few things around pistons - Most contraptions still work fine, but some require changes to repeater delays and similar. Overall, pistons should have fewer bugs, but will appear to update slightly slower.
* Improved performance on MP and SP, including reduced CPU, RAM & bandwidth requirements
* When opening SP worlds, users are now given their local IP address & port instead of hostname & port to avoid OS conflicts
* Creative mode inventory now shows potion effects
* Fixed some bugs
* Fixed /kill not working
* Fixed powering specific glitched pistons crashing the game
* Fixed a visual bug causing pistons to be partially invisible or in the wrong location momentarily
* Fixed being able to place portals in the nether in locations where they would end up in illegal locations in the overworld
* Fixed the game crashing when publishing SP worlds with certain language settings
* Fixed players on minecarts, boats or pigs and spider jockeys not being displayed in the correct location
* Fixed a bug with dispensers
* Fixed /say not accepting some strings form the console, often triggering the help dialogue
* Fixed being able to transmute blocks to certain data values using an orientation-dependant tripwire bug
* Fixed drinking potions in creative not consuming the potions, but still giving empty bottles
* Fixed signs sometimes not saving the text when placing them
What's to expect from 1.3?