Following are the steps to upgrade to 3.5 from previous snapcreator versions.
1) Stop Snap Creator Server of current installation.
2) Take a backup of the profiles under scServerX.Xx/configs folder
3) Take a backup of the Snap Creator database folder i.e scServerX.Xx/gui/snapcreator
4) If on windows uninstall the current Snap Creator installation.
5) Install new Snap Creator version
6) Copy backed up profiles to the new scServerX.Xx/configs folder
7) Delete the newly created Snap Creator database folder i.e scServerX.Xx/gui/snapcreator
😎 Copy and paste the backed up Snap Creator database folder to i.e scServerX.Xx/gui directory
9) Open CLI and move to directory scServerX.Xx/gui
10) Run the upgrade command i.e java -jar snapcreator.jar -upgrade
11) Start Snap Creator Server