A modern, feature-rich, cross-platform firmware development environment for the UEFI and PI specifications. EDK II is a modern, feature-rich, cross-platform firmware development environment for the UEFI and PI specifications. EDK II is open source, using a BSD+Patent. Stable tags are created from edk2/master based on validation with various platforms. Stable tags names use the format edk2-stable<4 digit year><2 digit month> and occur roughly every three months (starting from August 2018). UEFI...