Mostly just adds support for the new Uno and Mega boards: Get it here. From the release notes:
* Added support for the Arduino Uno and Arduino Mega 2560.* Including ATmega8U2 firmware used by Uno and Mega 2560.* Including source code to optiboot bootloader used by the Uno.
* Including source code to the stk500v2 bootloader used by Mega 2560.
PS: the Eagle files for the two boards are now up, too.
Comments
Also, I really really wish they supported XCode - I feel so at home in XCode and so out of place with the Arduino environment. I googled and found someone who had set up XCode, but it was for an older version that does not translate to the newer versions. It would be so great if they officially supported XCode.
Those would be my only two wishes. I can dream, right?