I have a copy of the 4.0 development version that is about two months old. Have there been any changes to the database between that version and the final release?
I looked in the SQL folder and didn’t see any upgrade scripts specifically for this purpose, though I suppose I could run the 3.2 to 4.0 script.
Yes, there are quite few changes to the database.
The changes are in the file 3_2_0-to-4_0_0_upgrade.sql within the sql folder.
For running the upgrade script, open openemr/sql_upgrade.php in your
web browser and choose 3.2.0
For more instructions on upgrade, you can refer to the wiki in the link http://openmedsoftware.org/wiki/OpenEMR_Upgrade_Guides.