We deployed 4.5.4 to our end users. Now we see many bugs were fixed in the 4.5.5 release and we want to upgrade to it. My question is what is the upgrade path for the Zimbra Connectors? Do you have to upgrade the connector 4.5.X upgrade? I would understand a minor or major release number but not quite sure about the release level (or whatever it is called) upgrade.

Also can you merely upgrade the connector or do you have to uninstall the old one and reinstall the new one?

If you have to uninstall/reinstall do you have to recreate the profile everytime or will it upgrade/migrate the previous leftover zdb file?