Version 1.7.8 of siegfried is now available. Get it here.
This minor release updates the PRONOM signatures to v93 and the LOC signatures to 2017-09-28.
As the only changes in this release are to signature files, you can just use
sf -update if you’ve installed siegfried manually. This minor release is just for the convenience of users who have installed sf with package managers (i.e. debian or homebrew).