While the RTL8723BS wifi module is now in the first v4.12 release candidate to get wifi working it is necessary to build it as an external module and load the firmware. As an interim I've build two packages 'rtl8723bs_4.11.0-041100_amd64.deb' and 'rtl8723bs_4.12.0-041200rc1_amd64.deb' from the v4.12 source (applying the necessary patches) which may be useful to anyone as an alternative to building for themselves until the v4.12 kernel matures. They can be downloaded and applied to the appropriate kernel using the 'dpkg -i' command.