We have uploaded a new Precise linux kernel. Please note the ABI bump. The most notable changes are as follows:

* Fixes for radeon issues on MacBook Pro 8,2
* Nouveau: nvidia optimus vga_switcheroo support
* Bluetooth: Add support for BCM20702A0 devices
* Enable USB3.0 in d-i
* mtip32xx driver updates
* Misc regression fixes

The full changelog can be seen at:

https://launchpad.net/ubuntu/+source/linux/3.2.0-13.22