upgrade from 1.2.0 to 1.2.4

["Joseph R. Hunt, Jr." <..hidden..>]

I'd previously successfully installed version 1.2.0, and have recently 
download 1.2.4.  After having read through the documentation, and 
specifically INSTALL and UPGRADE, I have a few questions.

I'm assuming that I don't need to individually upgrade to 1.2.1, 1.2.2 
and 1.2.3 before upgrading to 1.2.4.  Is this correct?

After reviewing the Changelog, it seems to me that there are no changes 
to the database schema, and therefore the changes are only to the 
various Perl and shell scripts.   If so, is the correct way to perform 
the upgrade simply to untar the new version over the old version (after 
of course backing up the old directory tree and backing up the 
PostgreSQL database for good measure)?

Also, in the UPGRADE file, in section 3-c, the correct statement should be

   SELECT version();

rather than

   SELECT version FROM default;

Thanks.

Joe Hunt