Linux Kernel 3.6.9 has been released recently which brings more improvements and bug fixes. Here are some of the changes and fixes taken from the changelog:

    ALSA: hda - Fix missing beep on ASUS X43U notebook 
    ALSA: ua101, usx2y: fix broken MIDI output 
    iwlwifi: fix monitor mode FCS flag 
    radeon: add AGPMode 1 quirk for RV250 
    drm/radeon: add new SI pci id 
    mmc: sdhci-s3c: fix the wrong number of max bus clocks 
    mwifiex: fix system hang issue in cmd timeout error case 
    x86, efi: Fix processor-specific memcpy() build error 
    MPI: Fix compilation on MIPS with GCC 4.4 and newer 
    NFC: Fix nfc_llcp_local chained list insertion 
    get_dvb_firmware: fix download site for tda10046 firmware 
    pstore/ram: Fix printk format warning 
    bas_gigaset: fix pre_reset handling 
    PM / QoS: fix wrong error-checking condition 
    jbd: Fix lock ordering bug in journal_unmap_buffer() 
    can: peak_usb: fix hwtstamp assignment

 Linux Kernel 3.6.9 Installation

We have created a simple bash script that will download and install kernel 3.6.9 on your system with just a few terminal commands. To start the installation of Linux Kernel 3.6.9, open the terminal and issue these commands under Ubuntu/Linux Mint (12.10/12.04 or Mint 14/13):

cd /tmp 
wget -O linux-kernel-3.6.9 
chmod +x linux-kernel-3.6.9 
sudo sh linux-kernel-3.6.9 
sudo reboot

Linux Kernel 3.6.9 Removal

If you want to delete kernel 3.6.9 and restore the previously installed kernel, run this command from the terminal:

sudo apt-get purge linux-image-3.6.9*

For any troubles encountered while upgrading to this new kernel, you may find help in this tutorial.