UEFI BIOS Updater (UBU) 1.43 has been released, according to multiple news sources:
https://twitter.com/freewareactive/status/670077533774311425
http://www.majorgeeks.com/files/details/uefi_bios_updater.html
http://www.softpedia.com/get/System/System-Miscellaneous/UEFI-BIOS-Updater.shtml
http://www.win-raid.com/t154f16-Tool-Guide-News-quot-UEFI-BIOS-Updater-quot-UBU.html
This is not an open source tool. It is closed-source freeware, which works on Microsoft Windows systems. I’ve not used this, but I’ve heard of others who use and recommend it. If you are going to use it, please read all the documentation first, there are many caveats and warnings.