Does Disney do free onboard upgrades?

[disneytargetmarket]

I know that some other lines do the free upgrade upon request. Does anyone know if Disney upgrades for free if it is available?

[travelgirl631516]

In my experience dealing with Disney I have never known them to do free on board upgrades.

[Kathleen Templeton]

They wont do free upgrades at the port, however we have had them give us a free upgrade 3 times. No reason that I know of, they just did it.

I guess it had to do with what rooms are easier for them to fill up when the cruise gets closer. its easier for them to book a lower price room, so someone who has already booked will get an upgrade and then they book their old room.

kathleen