CraveInvoice does not support automatic version upgrade. It means if you are using old version (e.g. 1.9) and if you download new version from our website and overwrite your current installtion then you will get the message "The database is older than software" when you run the software.
If you need to use a new version then please contact us with the software edition and version details at firstname.lastname@example.org. We will connect to your PC from teamviewer or similar remote desktop software and perform the upgrade manually. If remote connection is not possible then we will ask for your database, do the upgrade work on our end and copy it back on your computer.
Note: All upgrades after 6 months are on paid basis. So you will have to pay the upgrade fees before you go ahead with the upgrade of software. Upgrades are not mandatory so you can go through the version history of the software before upgrading and make sure that the new version has something useful for you.