I'm not sure what's going on, but it seems to me that although the
documentation source files in doc/src/sgml are being updated with each
release, when I install PostgreSQL v7.2.2 or v7.2.3 I get older HTML
documentation titled "PostgreSQL 7.2.1 Documentation" installed. And it's
missing the newer release information. Perhaps the release process is not
updating doc/postgres.tar.gz (which is used as the install source). Could
somebody check this?