Avanti supports Digital UNIX V3.2C and later, including the later releases named Tru64 UNIX. External Field Test (EFT), field-test, and other pre-release versions are not part of the supported matrix unless explicitly identified.

The KZPCA support matrix starts at V4.0F. V4.0D and earlier do not support that controller on the emulated AlphaServer 400, and V4.0E has not been qualified for KZPCA. Use KZPAA with those releases.