[1] TianoCore EDK II is the de facto standard generic UEFI services implementation.

[1] The resulting code formed the basis of the community-run EDK project on SourceForge, started in 2004.

[5][non-primary source needed] An "edk2" project was imported into SourceForge in April 2006, with a package-oriented code base again written by Intel.

[6] In 2008, a stable, validated version of EDK II was tagged as "UEFI Development Kit 2008" (UDK2008).

[12] EDK2 source code includes instructions for building as a payload for coreboot or Intel's "slim bootloader".

[19] In December 2023 a vulnerability termed "LogoFAIL" was discovered associated with EDK II which enabled an attacker to insert their own code in place of custom boot logo bitmap loader modules.