by Emma Richardson.
You do not need Bluehost's installer to upgrade and honestly, I would recommend not going that route. Sometimes host installers do strange things to websites. You can simply upload the latest greatest version to your host and upgrade yourself. Just follow the upgrade instructions found here https://docs.moodle.org/28/en/Upgrading. Make sure that you have a full backup of your moodle code, your moodledata folder and your database before you start.