2.0.0-MI7 is given higher ranking than both 2.0.0-RC1 and 2.0.0-RC8 (where RC8 represents the next available number after MI7)

Possibly

2.0.0-MI8-RC1 could be used as the next release candidate version number.

Milestone 8 : Release Candidate 1

Which should be given the correct ranking / priority