[john whiteway] “And why do so many things I’ve read (primarily a long piece by Patrick Inhoffer) emphasize the impotance of exporting and backing up both database and project files? Is this simply as a safely measure in case something screws up when upgrading to 15?”
Yes. In all my updates since Resolve 9 I have just allowed the new version to convert the database. The backup of both database and individual projects gives you the option of importing projects into a new database if the conversion of the old database somehow fails. I backup database and project files on a fairly regular basis anyway to an external drive just in case. Also in the future if I need to revisit a project I can import just that project. So this is just an extension of good practice whenever a new version, especially a beta, is installed.