On ons, 2012-04-18 at 10:08 -0400, Tom Lane wrote:
> Now having said that, you could certainly try adjusting the
> DOCTYPE declaration in the docs and seeing if they'd build with 4.5.
It should work.
The problem, as I recall it, with DocBook 4.5 was that the are some
problems in the source packaging that would require users who install
from source to do some extra patching. So it would create more work for
some without any actual benefit.