I belive that there is code that will do the upgrade from your version to current.
However
However
- Make a backup of your original site and database
- Create a secondary site and database by restoring the originals
- Change the web.config connection string in the secondary site to the secondary database
- Follow the install/upgrade instructions on the secondary site
- Test
-
Repeat 2 - 5 until it upgrades completed and fully test.