This noob says hi and has a noob-question...

[Presikheaven]

Hi everyone, greetings from the Low Countries.

My EOS RebelT3/EOS 1100D has firmware version 1.0.6.
According to the ML download instructions I need 1.0.5. So should I downgrade before I install ML?

Thanks a bunch for your reply! 
Cheerfully yours,

Presikheaven,
Arnhem,
The Netherlands

[Ottoga]

Welcome aboard.

To answer your question.  Yes (assuming that one can downgrade 1100D firmware).

Note that ML will not load if the camera has an unsupported firmware version.