Thank you very much... mine is on 4.5.32, looks like i need to upgrade to 5... is there something i should know know before upgrading. Will follow up this guide. https://docs.fusionpbx.com/en/latest/advanced/version_upgrade.html
what is the difference with this guidesIf you don't have your own customizations then follow the instruction.
I suggest making a backup before. Or if you are on VM, take a snapshot.