[chmod775]

Reading even one changed line tells us that they replaced hardcoded char arrays for SHA1 with a generic struct that could be used as a container for any hash.

Some functions that previously operated on those char arrays have been changed to deal with the more generic struct instead.

[angry_octet]

I consider it unlikely that it will change again, but somehow it is unsatisfying that it doesn't have a hash version, e.g. in the first nibble of the hash. If they had done that we could have avoided the unpleasantness long ago.