I want to point out before we get to the next release candidate, that
installing any 4.0.3 version, including a release candidate, creates a
rules/v403.pre file if it does not exist, but will not overwrite one
that does.
If you have tested one of the release candidates, either install a new
test into a new directory or delete rules/v403.pre before trying doing
it as an upgrade install.
I'm reminding testers because rc3 is expected to include a change to
v403.pre compared to the previous release candidates.