Here’s a bit more information about UEFI 2.6, from the changelog in the spec. There are 25 2.5 errata changes, and 39 new 2.6 features, ranging from October 2015 to January 2016. UEFI 2.5 errata: 1209 UEFI networking API chapter 2.6 requirements errors 1363 Short form URI device path 1365 7.4 Virtual Memory Services lists … Continue reading UEFI 2.6 spec changes