Upgrade Path for IDM Remote Loader

Hello,

I am migrating my environment from IDM 4.0.2.7 to IDM 4.6.3. I have a
JDBC driver that connects to a remote loader running on a Windows
server. The readme doc for IDM 4.6 says that I cannot migrate directly
to IDM 4.6 from an IDM version earlier than 4.5.5. Is this true for
remote loaders, or does it only apply to the engine server?

Thanks