December 2016 Firmware Update for Surface Pro 4

Microsoft's Surface Pro 4 received another December 2016 firmware update- The last update was released in August 2016. The new firmware updates the 'Realtek Semiconductor Corp. driver for Realtek High Definition Audio (SST)' to v6.0.1.7895. According to this US-Update-History site, Realtek High Definition Audio (SST) v6.0.1.7895 improves system stability and Cortana performance. The update is distributed via Windows Update, Download here. (via)