no more ARM tool chain?

I just downloaded and installed 1.6.3 and did not get the ARM GCC tools. I also downloaded board support for ARM using the board manager and even (successfully) compiled a sketch for the Due.

I can't find the ARM GCC tools. Am I just looking in the wrong place or does the IDE no longer use GCC for compiling for ARM?

Thanks!

EDIT:

The cores are now kept in the AppData\Roaming\Arduino15 folder now (in windows)

Mine is located here: C:\Users\Chris\AppData\Roaming\Arduino15

EDIT(again): After installing the ARM package, it added the 'sam' folder here: C:\Users\Chris\AppData\Roaming\Arduino15\packages\arduino\hardware

Found it - Thanks! In Linux it is at $HOME/.arduino15/packages/arduino/tools/arm-none-eabi-gcc/4.8.3-2014q1/bin/