Oh yeah, it's entirely possible to find Holes in very old builds.
iirc - The Wish and The Word were using some 3.0 material,
during the "epoch" when 3.0 material was semi-OK with that years version of CO.
Later the board said NO to 3.0, and people like ShakaUVM didn't like it.
Later later, the board allowed a creeping but slow acceptance of 3.0 into 3.5.
The Hive uses 3.0 rules, and the 3.5 Hive
can't ... (harsh words !!) ... work unless it uses 3.0 rules.
So then the Hive related text in two different 3.5 books, specifically reference the 3.0 book.
Multi-crossing 3.0 and 3.5 is like in Ghostbusters, where they
cross the streams ...