[Koha] Upgrade 3.00.xx to 3.20

Is this a valid method to upgrade from 3.00.xx to 3.20 ?? Or have there been database changes that would kill this idea?? ********************************************************************************** I have upgraded from 3.00.xx ( do not remember which) to 3.4. The process was a bit contorted though, since it involved change of hardware. 1. Installed Debian on the new system, 2. installed Koha 3.4, (as if it was a new install), 3. "Restored" the sqldump from the old installation. 4. Started Koha. Koha script did the required things at first login. ***************************************************************************** or is apt-get update apt-get install koha-common still a valid option ??